Mercer Island Warnings, Watches and Advisories
SAFETY and DATA MESSAGE
Do not drive vehicles through flooded areas. The water depth or fast flowing water/mud/debris from a flash flood will make road conditions unsafe. Do not rely soley on data presented here or other third-party websites - always check your official national and local weather service agency website, socials, radio and/or TV stations for making critical decisions related to weather events.
Please carefully read each posted Warning and Alert as it relates to the area(s) being affected. We may provide a wider range of issued severe weather warnings for surrounding cities and counties, so some alerts may not directly impact this location. This is done to help with preparing for severe weather that may overlap or be heading towards Mercer Island.
Use the Radar Maps link provided to understand the trajectory of a storm.
NWS Active Alerts for WA - Map View
Flood Warning
Grays Harbor, WA
Flood Warning issued March 14 at 5:09AM PDT until March 16 at 10:21PM PDT by NWS Seattle WA
...The Flood Warning is extended for the following rivers in Washington... Chehalis River At Porter affecting Grays Harbor County. * WHAT...Minor flooding is forecast. * WHERE...Chehalis River at Porter. * WHEN...From this afternoon to late Monday evening. * IMPACTS...At 48.0 feet, the Chehalis River in Grays Harbor will flood low pasture lands and some roads. High tidal levels at Aberdeen will worsen flooding along the lower reaches. * ADDITIONAL DETAILS... - At 4:45 AM PDT Saturday the stage was 47.4 feet. - Flood stage is 48.0 feet. - Forecast...The river is expected to rise above flood stage early this afternoon to a crest of 48.6 feet late tomorrow morning. It will then fall below flood stage Monday afternoon. - http://www.weather.gov/safety/flood
Severe
Observed
Immediate
March 14th, 2026 05:09:00 am PDT
March 14th, 2026 05:09:00 am PDT
March 14th, 2026 01:15:00 pm PDT
Flood Watch
Clatsop County Coast; Tillamook County Coast; North Oregon Coast Range Lowlands; North Oregon Coast Range; Lower Columbia River; Tualatin Valley; West Hills and Chehalem Mountains; Inner Portland Metro; East Portland Metro; Outer Southeast Portland Metro; West Central Willamette Valley; East Central Willamette Valley; West Columbia River Gorge of Oregon above 500 ft; West Columbia River Gorge I-84 Corridor; Clackamas County Cascade Foothills; Willapa and Wahkiakum Lowlands; Willapa Hills; Cowlitz County Lowlands; North Clark County Lowlands; Inner Vancouver Metro; East Clark County Lowlands; South Washington Cascade Foothills; West Columbia River Gorge - SR 14
Flood Watch issued March 14 at 4:50AM PDT until March 14 at 5:00PM PDT by NWS Portland OR
* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of northwest Oregon, including the following areas, Clackamas County Cascade Foothills, Clatsop County Coast, East Central Willamette Valley, East Portland Metro, Inner Portland Metro, Lower Columbia River, North Oregon Coast Range, North Oregon Coast Range Lowlands, Outer Southeast Portland Metro, Portland West Hills and Chehalem Mountain, Tillamook County Coast, Tualatin Valley, West Central Willamette Valley, West Columbia River Gorge I-84 Corridor and West Columbia River Gorge of Oregon above 500 ft and southwest Washington, including the following areas, Cowlitz County Lowlands, East Clark County Lowlands, Inner Vancouver Metro, North Clark County Lowlands, South Washington Cascade Foothills, West Columbia River Gorge SR 14 Corridor, Willapa Hills and Willapa and Wahkiakum Lowlands. * WHEN...Through this afternoon. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. Area creeks and streams are running high and could flood with more heavy rain. Landslides and debris flows are possible during this flood event. People, structures, and roads located below steep slopes, in canyons, and near the mouths of canyons may be at serious risk from rapidly moving landslides. * ADDITIONAL DETAILS... - The majority of rainfall associated with an atmospheric river has shifted southward and out of the forecast area. However, lingering showers will continue through through Saturday morning. The saturated ground along with very full rivers will maintain an elevated threat of flooding through at least Saturday afternoon. Please continue to listen and observe any closed roads or directions from local authorities. - http://www.weather.gov/safety/flood
Severe
Possible
Future
March 14th, 2026 04:50:00 am PDT
March 14th, 2026 04:50:00 am PDT
March 14th, 2026 05:00:00 pm PDT
Winter Storm Warning
Western Chelan County
Winter Storm Warning issued March 14 at 4:43AM PDT until March 14 at 11:00AM PDT by NWS Spokane WA
* WHAT...Snow. Additional snow accumulations up to 2 inches. Winds gusting as high as 35 mph. * WHERE...Holden Village, Stehekin, and Stevens Pass. * WHEN...Until 11 AM PDT this morning. * IMPACTS...Travel could be very difficult. Heavy wet snow may result in tree damage and power outages. * ADDITIONAL DETAILS...Through Friday night, periods of snow expected at Stehekin. Snow will change to rain each afternoon. Total accumulations around 4 to 8 inches at Stehekin.
Severe
Likely
Expected
March 14th, 2026 04:43:00 am PDT
March 14th, 2026 04:43:00 am PDT
March 14th, 2026 11:00:00 am PDT
Winter Weather Advisory
Northern Blue Mountains of Oregon; Northwest Blue Mountains
Winter Weather Advisory issued March 14 at 3:20AM PDT until March 14 at 8:00PM PDT by NWS Pendleton OR
* WHAT...Snow ABOVE 4000 FEET. Additional snow accumulations of 6 to 9 inches. Winds gusting as high as 40 mph. * WHERE...In Oregon, Northern Blue Mountains of Oregon. In Washington, Northwest Blue Mountains. * WHEN...Until 8 PM PDT this evening. * IMPACTS...Periods of moderate and heavy snow will combine with low visibilities to create difficult driving conditions. Gusty winds could bring down tree branches.
Moderate
Likely
Expected
March 14th, 2026 03:20:00 am PDT
March 14th, 2026 03:20:00 am PDT
March 14th, 2026 11:00:00 am PDT
Winter Storm Warning
Upper Slopes of the Eastern Washington Cascades Crest
Winter Storm Warning issued March 14 at 3:20AM PDT until March 14 at 11:00AM PDT by NWS Pendleton OR
* WHAT...Heavy snow. Additional snow accumulations up to 4 inches. Winds gusting as high as 40 mph. * WHERE...Upper Slopes of the Eastern Washington Cascades Crest. * WHEN...Until 11 AM PDT this morning. * IMPACTS...Plan on slippery road conditions. Gusty winds could bring down tree branches.
Severe
Likely
Expected
March 14th, 2026 03:20:00 am PDT
March 14th, 2026 03:20:00 am PDT
March 14th, 2026 11:00:00 am PDT
Winter Weather Advisory
Foothills and Valleys of Pierce and Southern King Counties
Winter Weather Advisory issued March 14 at 2:55AM PDT until March 14 at 11:00AM PDT by NWS Seattle WA
* WHAT...Snow. Snow accumulations up to 2 inches possible. * WHERE...Foothills and Valleys of Pierce and Southern King Counties. * WHEN...Until 11 AM PDT this morning. * IMPACTS...Plan on slippery road conditions.
Moderate
Likely
Expected
March 14th, 2026 02:55:00 am PDT
March 14th, 2026 02:55:00 am PDT
March 14th, 2026 11:00:00 am PDT
Winter Weather Advisory
Foothills and Valleys of Central King County
Winter Weather Advisory issued March 14 at 2:55AM PDT until March 14 at 11:00AM PDT by NWS Seattle WA
* WHAT...Snow. Snow accumulations of 2 to 3 inches possible. * WHERE...Foothills and Valleys of Central King County. * WHEN...Until 11 AM PDT this morning. * IMPACTS...Plan on slippery road conditions.
Moderate
Likely
Expected
March 14th, 2026 02:55:00 am PDT
March 14th, 2026 02:55:00 am PDT
March 14th, 2026 11:00:00 am PDT
Winter Storm Warning
Cascades of Snohomish and Northern King Counties; Cascades of Southern King County; Cascades of Pierce and Lewis Counties
Winter Storm Warning issued March 14 at 2:55AM PDT until March 14 at 11:00AM PDT by NWS Seattle WA
* WHAT...Snow. Additional snow accumulations up to 4 inches. * WHERE...Cascades of Snohomish and Northern King Counties, Cascades of Pierce and Lewis Counties, and Cascades of Southern King County. * WHEN...Until 11 AM PDT this morning. * IMPACTS...Travel could be very difficult.
Severe
Likely
Expected
March 14th, 2026 02:55:00 am PDT
March 14th, 2026 02:55:00 am PDT
March 14th, 2026 11:00:00 am PDT
Flood Warning
Whitman, WA
Flood Warning issued March 14 at 2:41AM PDT until March 14 at 5:00PM PDT by NWS Spokane WA
...Forecast flooding changed from Minor to Moderate severity and increased in duration for the following rivers in Washington... South Fork Palouse River at Pullman affecting Whitman County. For the Palouse River...including Pullman...Moderate flooding is forecast. * WHAT...Moderate flooding is occurring and moderate flooding is forecast. * WHERE...South Fork Palouse River at Pullman. * WHEN...Until late this afternoon. * IMPACTS...At 7.0 feet, Minor flooding in the residential and business areas along the river in and around Pullman can be expected. Ponding of water on portions of Grand Ave near Missouri Flat Creek. Flooding in portions of Spring Street Skate Park, the City Palyfields, and the Pullman RV Park. * ADDITIONAL DETAILS... - At 2:15 AM PDT Saturday the stage was 8.1 feet. - Bankfull stage is 5.5 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 2:15 AM PDT Saturday was 8.1 feet. - Forecast...The river will oscillate above flood stage with a maximum value of 8.2 feet early this morning. It will fall below flood stage late this morning. - Flood stage is 7.0 feet. - Flood History...This crest compares to a previous crest of 8.3 feet on 02/13/1979. - http://www.weather.gov/safety/flood
Severe
Likely
Expected
March 14th, 2026 02:41:00 am PDT
March 14th, 2026 02:41:00 am PDT
March 14th, 2026 12:00:00 pm PDT
Flood Warning
Cowlitz, WA
Flood Warning issued March 14 at 2:33AM PDT by NWS Portland OR
...The Flood Warning is extended for the following rivers in Oregon...Washington... Nehalem River near Foss affecting Clatsop and Tillamook Counties. Wilson River near Tillamook affecting Tillamook County. Cowlitz River at Kelso affecting Cowlitz County. Grays River at Covered Bridge near Rosburg affecting Wahkiakum County. Johnson Creek at Sycamore affecting Clackamas and Multnomah Counties. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Cowlitz River at Kelso. * WHEN...Until further notice. * IMPACTS...Above 24.5 feet, flooding of a few residential areas in Kelso begins. Also expect widespread flooding of pasture land and low lying roads. * ADDITIONAL DETAILS... - At 1:43 AM PDT Saturday the stage was 23.3 feet. - Bankfull stage is 18.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 1:43 AM PDT Saturday was 23.7 feet. - Forecast...The river will oscillate above flood stage with a maximum value of 23.2 feet early this morning. It will fall below flood stage late tonight. - Flood stage is 21.5 feet. - http://www.weather.gov/safety/flood
Severe
Observed
Immediate
March 14th, 2026 02:33:00 am PDT
March 14th, 2026 02:33:00 am PDT
March 14th, 2026 06:00:00 am PDT
Flood Warning
Wahkiakum, WA
Flood Warning issued March 14 at 2:33AM PDT by NWS Portland OR
...The Flood Warning is extended for the following rivers in Oregon...Washington... Nehalem River near Foss affecting Clatsop and Tillamook Counties. Wilson River near Tillamook affecting Tillamook County. Cowlitz River at Kelso affecting Cowlitz County. Grays River at Covered Bridge near Rosburg affecting Wahkiakum County. Johnson Creek at Sycamore affecting Clackamas and Multnomah Counties. * WHAT...Minor flooding is occurring. * WHERE...Grays River at Covered Bridge near Rosburg. * WHEN...Until further notice. * IMPACTS...Above 28.5 feet, expect some flooding of roads along and near the Grays River, especially downstream of the gage, including roadway approaches to the Altoona Bridge over the Grays, and portions of Covered Bridge Road, Barr-Durrah Road, and Loop Road near Rosburg and Hwy 4. * ADDITIONAL DETAILS... - At 2:15 AM PDT Saturday the stage was 28.5 feet. - Bankfull stage is 27.5 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 2:15 AM PDT Saturday was 29.0 feet. - Forecast...The river is expected to fall below flood stage by early Saturday morning and continue falling to 23.5 feet Monday, March 23. - Flood stage is 28.5 feet. - http://www.weather.gov/safety/flood
Severe
Observed
Immediate
March 14th, 2026 02:33:00 am PDT
March 14th, 2026 02:33:00 am PDT
March 14th, 2026 06:00:00 am PDT
Flood Warning
Cowlitz, WA
Flood Warning issued March 14 at 2:33AM PDT by NWS Portland OR
...The National Weather Service in Portland OR has issued a Flood Warning for the following rivers in Washington... Cowlitz River at Castle Rock affecting Cowlitz County. * WHAT...Minor flooding is forecast. * WHERE...Cowlitz River at Castle Rock. * WHEN...From early this morning until further notice. * IMPACTS...Above 48.0 feet, expect flooding of several roads and low-lying agricultural lands in areas not protected by levees. * ADDITIONAL DETAILS... - At 1:30 AM PDT Saturday the stage was 47.7 feet. - Bankfull stage is 46.0 feet. - Forecast...The river will rise above flood stage to 48.6 feet early this morning. It will then fall below flood stage by early this afternoon. - Flood stage is 48.0 feet. - http://www.weather.gov/safety/flood
Severe
Likely
Expected
March 14th, 2026 02:33:00 am PDT
March 14th, 2026 02:33:00 am PDT
March 14th, 2026 06:00:00 am PDT
Flood Warning
Latah, ID; Whitman, WA
Flood Warning issued March 14 at 1:13AM PDT until March 15 at 2:11AM PDT by NWS Spokane WA
...Forecast flooding increased in duration for the following rivers in Washington...Idaho... Paradise Creek at Moscow affecting Whitman and Latah Counties. .Heavy rain will fall on a deep primed snowpack leading to the melt increasing. Flows in rivers will increase quickly and reach critical levels. For the Paradise Creek ...including Moscow...Moderate flooding is forecast. * WHAT...Moderate flooding is occurring. This approaches the flood of record. * WHERE...Paradise Creek at Moscow. * WHEN...Until just after midnight tonight. * IMPACTS...At 11.3 feet, Flooding will increase across many streets and impact homes in the flood plain, including the intersection of E and Harding street, Lemhi at Mountain View street, Blaine at White street, and portions of the University of Idaho campus. Similar to the flooding of 2019. * ADDITIONAL DETAILS... - At 12:45 AM PDT Saturday the stage was 11.3 feet. - Bankfull stage is 8.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 12:45 AM PDT Saturday was 11.3 feet. - Forecast...The river is expected to rise to a crest of 11.5 feet early this morning. It will then fall below flood stage this evening. - Flood stage is 9.2 feet. - Flood History...This crest compares to a previous crest of 11.4 feet on 04/09/2019. - http://www.weather.gov/safety/flood
Severe
Likely
Expected
March 14th, 2026 01:13:00 am PDT
March 14th, 2026 01:13:00 am PDT
March 14th, 2026 09:00:00 am PDT
Flood Warning
Latah, ID; Lewis, ID; Nez Perce, ID; Asotin, WA; Garfield, WA; Whitman, WA
Flood Warning issued March 14 at 12:17AM PDT until March 14 at 1:45PM PDT by NWS Spokane WA
* WHAT...Flooding caused by rain and snowmelt is expected. * WHERE...Portions of Idaho, including the following counties, Latah, Lewis and Nez Perce and Southeast Washington, including the following counties, Asotin, Garfield and Whitman. * WHEN...Until 145 PM PDT Saturday. * IMPACTS...Flooding of rivers, creeks, streams, and other low-lying and flood-prone locations is imminent or occurring. Expect many areas of slow moving or standing water. * ADDITIONAL DETAILS... - At 1215 AM PDT, rain and snowmelt is occurring, and will cause flooding. Between 0.5 and 0.75 inches of rain have fallen. - Additional rainfall amounts of 0.25 to 0.75 inches are possible in the warned area through this afternoon. - Some locations that will experience flooding include... Lewiston, Pullman, Moscow, Clarkston, Lapwai, Colfax, Pomeroy, Genesee, Troy, Potlatch, Juliaetta, Deary, Craigmont, Nezperce, Culdesac, Winchester, Kendrick, Bovill, West Clarkston-Highland and Clarkston Heights-Vineland. - http://www.weather.gov/safety/flood
Severe
Likely
Expected
March 14th, 2026 12:17:00 am PDT
March 14th, 2026 12:17:00 am PDT
March 14th, 2026 01:45:00 pm PDT
Flood Warning
Thurston, WA
Flood Warning issued March 13 at 11:58PM PDT until March 14 at 2:05PM PDT by NWS Seattle WA
...The National Weather Service in Seattle WA has issued a Flood Warning for the following rivers in Washington... Deschutes River Near Rainier affecting Thurston County. * WHAT...Minor flooding is forecast. * WHERE...Deschutes River near Rainier. * WHEN...From late tonight to early tomorrow afternoon. * IMPACTS...At 11.0 feet, the Deschutes River will flood downstream in Tumwater Valley including the golf course. Minor flooding will also occur in several residential areas...mainly Cougar Mountain and Driftwood Valley. Many roads and farm lands will also be flooded. * ADDITIONAL DETAILS... - At 11:45 PM PDT Friday the stage was 10.8 feet. - Flood stage is 11.0 feet. - Forecast...The river is expected to crest right around flood stage late tonight. It will then fall below flood stage Saturday morning. - http://www.weather.gov/safety/flood
Severe
Likely
Expected
March 13th, 2026 11:58:00 pm PDT
March 13th, 2026 11:58:00 pm PDT
March 14th, 2026 08:00:00 am PDT
Flood Warning
Lewis, WA
Flood Warning issued March 13 at 10:53PM PDT until March 14 at 9:09PM PDT by NWS Seattle WA
...The National Weather Service in Seattle WA has issued a Flood Warning for the following rivers in Washington... Newaukum River Near Chehalis affecting Lewis County. .This is a re-issuance of the previous flood warning, but updated with the latest flood information. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Newaukum River near Chehalis. * WHEN...From this evening to late tomorrow evening. * IMPACTS...At 202.5 feet, flood waters will inundate many roads and residential and commercial areas along the Newaukum River and its forks. Flooding in some areas may be deep and hazardous especially near rivers. Impacted roadways and surrounding areas include Jackson Hwy. and Tune, Rush, Sommerville, Griel, Hamilton, Tauscher, Guerrier, Kirkland, Macomber, Rice, Senn, Lucas Creek, Middle Fork and North Fork Roads. A stage of 202.5 feet on the Newaukum roughly corresponds to Phase 2 flood in the Lewis County flood system. * ADDITIONAL DETAILS... - At 9:45 PM PDT Friday the stage was 203.9 feet. - Flood stage is 202.5 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 9:45 PM PDT Friday was 203.9 feet. - Forecast...The river is expected to rise to a crest of 204.1 feet late this evening. It will then fall below flood stage early tomorrow afternoon. - http://www.weather.gov/safety/flood
Severe
Likely
Expected
March 13th, 2026 10:53:00 pm PDT
March 13th, 2026 10:53:00 pm PDT
March 14th, 2026 07:00:00 am PDT
Flood Warning
Grays Harbor, WA; Thurston, WA
Flood Warning issued March 13 at 10:50PM PDT until March 16 at 4:51AM PDT by NWS Seattle WA
...The National Weather Service in Seattle WA has issued a Flood Warning for the following rivers in Washington... Chehalis River Above Grand Mound affecting Grays Harbor and Thurston Counties. .This is a re-issuance of the previous flood warning, but updated with the latest flood information. * WHAT...Minor flooding is forecast. * WHERE...Chehalis River above Grand Mound. * WHEN...Until early Monday morning. * IMPACTS...At 141.0 feet, the Chehalis River in Thurston County will flood several roads in Independence Valley including James Road, Independence Road, and Moon road. Flood waters will also cover nearby farm lands. * ADDITIONAL DETAILS... - At 10:00 PM PDT Friday the stage was 140.8 feet. - Flood stage is 141.0 feet. - Forecast...The river is expected to rise above flood stage just after midnight tonight to a crest of 142.3 feet late tomorrow evening. It will then fall below flood stage Sunday evening. - http://www.weather.gov/safety/flood
Severe
Likely
Expected
March 13th, 2026 10:50:00 pm PDT
March 13th, 2026 10:50:00 pm PDT
March 14th, 2026 07:00:00 am PDT
Flood Warning
Thurston, WA
Flood Warning issued March 13 at 10:46PM PDT until March 15 at 9:46PM PDT by NWS Seattle WA
...The National Weather Service in Seattle WA has issued a Flood Warning for the following rivers in Washington... Skookumchuck River Near Bucoda affecting Thurston County. .This is a re-issuance of the previous flood warning, but updated with the latest flood information. * WHAT...Moderate flooding is occurring and moderate flooding is forecast. * WHERE...Skookumchuck River near Bucoda. * WHEN...From this evening to late Sunday evening. * IMPACTS...At 213.0 feet, the Skookumchuck River in Thurston County will flood several residential and business areas around Bucoda. Flood waters will cover many roads. * ADDITIONAL DETAILS... - At 9:45 PM PDT Friday the stage was 213.5 feet. - Flood stage is 211.5 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 9:45 PM PDT Friday was 213.5 feet. - Forecast...The river is expected to rise to a crest of 214.3 feet late tomorrow morning. It will then fall below flood stage Sunday afternoon. - http://www.weather.gov/safety/flood
Severe
Likely
Expected
March 13th, 2026 10:46:00 pm PDT
March 13th, 2026 10:46:00 pm PDT
March 14th, 2026 07:00:00 am PDT
Flood Watch
Lewis, WA; Thurston, WA
Flood Watch issued March 13 at 10:05PM PDT until March 15 at 5:00PM PDT by NWS Seattle WA
* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...A portion of west central Washington, including the following counties, Lewis and Thurston. * WHEN...Through Sunday afternoon. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - Moderate to heavy rainfall will keep rivers on the Chehalis, Newaukum, and the Skookumchuck running near flood stage through Sunday. - http://www.weather.gov/safety/flood
Severe
Possible
Future
March 13th, 2026 10:05:00 pm PDT
March 13th, 2026 10:05:00 pm PDT
March 14th, 2026 11:15:00 am PDT
Flood Watch
Lower Columbia Basin of Washington; Foothills of the Blue Mountains of Washington
Flood Watch issued March 13 at 9:50PM PDT until March 15 at 5:00PM PDT by NWS Pendleton OR
...The Flood Watch continues for the following rivers in Washington... Walla Walla River near Touchet affecting Foothills of the Blue Mountains of Washington and Lower Columbia Basin of Washington zones. * WHAT...Flooding is possible. * WHERE...Walla Walla River near Touchet. * WHEN...From Saturday afternoon to Sunday afternoon. * IMPACTS...At 13.0 feet, Minor flooding of low land areas along river. * ADDITIONAL DETAILS... - At 9:30 PM PDT Friday the stage was 10.5 feet. - Forecast...Flood stage may be reached based on the latest forecast information. - Flood stage is 13.0 feet. - http://www.weather.gov/safety/flood
Severe
Possible
Future
March 13th, 2026 09:50:00 pm PDT
March 13th, 2026 09:50:00 pm PDT
March 14th, 2026 07:00:00 am PDT
Flood Warning
Latah, ID; Whitman, WA
Flood Warning issued March 13 at 7:09PM PDT until March 15 at 2:55AM PDT by NWS Spokane WA
...The Flood Warning continues for the following rivers in Idaho... Washington... Palouse River near Potlatch affecting Latah and Whitman Counties. For the Palouse River...including Potlatch...Moderate flooding is forecast. * WHAT...Moderate flooding is forecast. * WHERE...Palouse River near Potlatch. * WHEN...From late tonight to early Sunday morning. * IMPACTS...At 16.5 feet, Water will be up to the back door at the city shop in Palouse. Water will approach the home on Main Street near Hayton Greene Park. Lions Club Park in Palouse will be submerged and water will be around the playground at the Hayton Greene Park. At 17.0 feet, Widespread extensive lowland and field flooding between Potlatch Junction Idaho and Palouse Washington, including near portions of Highway 272 near Palouse, and west to Tidwell Road and Highway 27. * ADDITIONAL DETAILS... - At 6:30 PM PDT Friday the stage was 12.1 feet. - Bankfull stage is 14.0 feet. - Forecast...The river will rise above flood stage Saturday morning and crest around 16.8 feet late Saturday morning. It will then fall below flood stage late Saturday evening to 11.0 feet late Monday evening. - Flood stage is 15.0 feet. - Flood History...This crest compares to a previous crest of 16.9 feet on 04/10/2019. - http://www.weather.gov/safety/flood
Severe
Observed
Immediate
March 13th, 2026 07:09:00 pm PDT
March 13th, 2026 07:09:00 pm PDT
March 14th, 2026 07:00:00 am PDT
Flood Warning
Grays Harbor, WA
Flood Warning issued March 13 at 4:53PM PDT until March 16 at 8:43PM PDT by NWS Seattle WA
...The National Weather Service in Seattle WA has issued a Flood Warning for the following rivers in Washington... Chehalis River At Porter affecting Grays Harbor County. * WHAT...Minor flooding is forecast. * WHERE...Chehalis River at Porter. * WHEN...From Saturday afternoon to Monday evening. * IMPACTS...At 48.0 feet, the Chehalis River in Grays Harbor will flood low pasture lands and some roads. High tidal levels at Aberdeen will worsen flooding along the lower reaches. * ADDITIONAL DETAILS... - At 3:45 PM PDT Friday the stage was 46.3 feet. - Flood stage is 48.0 feet. - Forecast...The river is expected to rise above flood stage tomorrow afternoon to a crest of 48.5 feet late Sunday morning. It will then fall below flood stage late Monday morning. - http://www.weather.gov/safety/flood
Severe
Likely
Expected
March 13th, 2026 04:53:00 pm PDT
March 13th, 2026 04:53:00 pm PDT
March 14th, 2026 01:00:00 am PDT
Hydrologic Outlook
Simcoe Highlands; Upper Slopes of the Eastern Washington Cascades Crest; Lower Slopes of the Eastern Washington Cascades Crest
Hydrologic Outlook issued March 13 at 4:18PM PDT by NWS Pendleton OR
ESFPDT Heavy rain tonight and snowmelt this weekend and early next week will lead to high water levels on streams and rivers along the east slopes of the Washington Cascades and Simcoe Highlands. The Klickitat River near Pitt and the Naches River at Naches are forecast to approach or just barely surpass Action Stage Saturday morning then start receding Saturday afternoon. Other streams and rivers will have rises but remain within their banks. There is some uncertainty in the rain and snow amounts through Saturday and temperatures into early next week but confidence in river levels is good (60-80%). Additionally, water temperatures have dropped to the lower 40s, so the chances of hypothermia will be increased for anyone falling into rivers or streams.
Unknown
Possible
Future
March 13th, 2026 04:18:00 pm PDT
March 13th, 2026 04:18:00 pm PDT
March 14th, 2026 05:00:00 pm PDT
Flood Warning
Lewis, WA
Flood Warning issued March 13 at 3:14PM PDT until March 14 at 12:31PM PDT by NWS Seattle WA
...The Flood Warning is extended for the following rivers in Washington... Newaukum River Near Chehalis affecting Lewis County. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Newaukum River near Chehalis. * WHEN...Until early tomorrow afternoon. * IMPACTS...At 202.5 feet, flood waters will inundate many roads and residential and commercial areas along the Newaukum River and its forks. Flooding in some areas may be deep and hazardous especially near rivers. Impacted roadways and surrounding areas include Jackson Hwy. and Tune, Rush, Sommerville, Griel, Hamilton, Tauscher, Guerrier, Kirkland, Macomber, Rice, Senn, Lucas Creek, Middle Fork and North Fork Roads. A stage of 202.5 feet on the Newaukum roughly corresponds to Phase 2 flood in the Lewis County flood system. * ADDITIONAL DETAILS... - At 2:45 PM PDT Friday the stage was 202.5 feet. - Flood stage is 202.5 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 2:45 PM PDT Friday was 202.5 feet. - Forecast...The river is expected to rise to a crest of 203.6 feet late this evening. It will then fall below flood stage late tonight. - http://www.weather.gov/safety/flood
Severe
Observed
Immediate
March 13th, 2026 03:14:00 pm PDT
March 13th, 2026 03:14:00 pm PDT
March 13th, 2026 11:15:00 pm PDT
Flood Warning
Grays Harbor, WA; Thurston, WA
Flood Warning issued March 13 at 3:14PM PDT until March 15 at 4:57PM PDT by NWS Seattle WA
...The National Weather Service in Seattle WA has issued a Flood Warning for the following rivers in Washington... Chehalis River Above Grand Mound affecting Thurston and Grays Harbor Counties. * WHAT...Minor flooding is forecast. * WHERE...Chehalis River above Grand Mound. * WHEN...From Saturday morning to Sunday afternoon. * IMPACTS...At 141.0 feet, the Chehalis River in Thurston County will flood several roads in Independence Valley including James Road, Independence Road, and Moon road. Flood waters will also cover nearby farm lands. * ADDITIONAL DETAILS... - At 3:00 PM PDT Friday the stage was 139.3 feet. - Flood stage is 141.0 feet. - Forecast...The river is expected to rise above flood stage tomorrow morning to a crest of 141.7 feet tomorrow afternoon. It will then fall below flood stage Sunday morning. - http://www.weather.gov/safety/flood
Severe
Likely
Expected
March 13th, 2026 03:14:00 pm PDT
March 13th, 2026 03:14:00 pm PDT
March 13th, 2026 11:15:00 pm PDT
Flood Advisory
Umatilla, OR; Union, OR; Wallowa, OR; Columbia, WA; Walla Walla, WA
Flood Advisory issued March 13 at 2:45PM PDT until March 14 at 3:00PM PDT by NWS Pendleton OR
* WHAT...Flooding caused by rain and snowmelt is expected. * WHERE...Portions of northeast Oregon, including the following counties, Umatilla, Union and Wallowa and southeast Washington, including the following counties, Columbia and Walla Walla. * WHEN...Until 300 PM PDT Saturday. * IMPACTS...Minor flooding in low-lying and poor drainage areas. Rises in small streams and normally dry arroyos. Overflowing poor drainage areas. River or stream flows are elevated. * ADDITIONAL DETAILS... - At 238 PM PDT, rain and snowmelt is occurring, and will cause minor flooding. - At 2:40 PM, rain is falling over the Blue Mountains and the Blue Mountain Foothills and is expected to increase tonight. Additional rainfall amounts of 1 to 3 inches are expected over the area. This additional rain will result in minor flooding. - Some locations that will experience flooding include... Walla Walla, Pendleton, La Grande, Dayton, Meacham, College Place, Milton-Freewater, Waitsburg, Athena, Weston, Adams, Prescott, Helix, Starbuck, Bingham Springs, Tollgate, Spout Springs, Garrett, Gibbon and Dixie. - http://www.weather.gov/safety/flood
Minor
Likely
Expected
March 13th, 2026 02:45:00 pm PDT
March 13th, 2026 02:45:00 pm PDT
March 14th, 2026 03:00:00 pm PDT
Flood Warning
Thurston, WA
Flood Warning issued March 13 at 2:23PM PDT until March 15 at 9:19AM PDT by NWS Seattle WA
...Forecast flooding changed from Minor to Moderate severity and increased in duration for the following rivers in Washington... Skookumchuck River Near Bucoda affecting Thurston County. * WHAT...Minor flooding is occurring and moderate flooding is forecast. * WHERE...Skookumchuck River near Bucoda. * WHEN...From this afternoon to late Sunday morning. * IMPACTS...At 213.0 feet, the Skookumchuck River in Thurston County will flood several residential and business areas around Bucoda. Flood waters will cover many roads. * ADDITIONAL DETAILS... - At 1:45 PM PDT Friday the stage was 211.7 feet. - Flood stage is 211.5 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 1:45 PM PDT Friday was 211.7 feet. - Forecast...The river is expected to rise to a crest of 213.5 feet late tonight. It will then fall below flood stage early Sunday morning. - http://www.weather.gov/safety/flood
Severe
Likely
Expected
March 13th, 2026 02:23:00 pm PDT
March 13th, 2026 02:23:00 pm PDT
March 13th, 2026 10:30:00 pm PDT
Winter Weather Advisory
Foothills and Valleys of Central King County
Winter Weather Advisory issued March 13 at 2:21PM PDT until March 14 at 11:00AM PDT by NWS Seattle WA
* WHAT...Snow. Additional snow accumulations up to two inches. * WHERE...Foothills and Valleys of Central King County. * WHEN...Until 11 AM PDT Saturday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Plan on slippery road conditions. The hazardous conditions could impact the Friday evening commute. * ADDITIONAL DETAILS...Widespread snow will wrap up this evening. A convergence zone will produce additional bands of snow in the foothills of the Cascades through the first part of Saturday.
Moderate
Likely
Expected
March 13th, 2026 02:21:00 pm PDT
March 13th, 2026 02:21:00 pm PDT
March 13th, 2026 09:15:00 pm PDT
Winter Weather Advisory
Foothills and Valleys of Snohomish and Northern King Counties
Winter Weather Advisory issued March 13 at 2:21PM PDT until March 14 at 11:00AM PDT by NWS Seattle WA
* WHAT...Snow. Additional snow accumulations up to one to two inches. * WHERE...Foothills and Valleys of Snohomish and Northern King Counties. * WHEN...Until 11 AM PDT Saturday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Friday evening commute. * ADDITIONAL DETAILS...Widespread snow will wrap up this evening. A convergence zone will produce additional bands of snow in the foothills of the Cascades through the first part of Saturday.
Moderate
Likely
Expected
March 13th, 2026 02:21:00 pm PDT
March 13th, 2026 02:21:00 pm PDT
March 13th, 2026 09:15:00 pm PDT
Winter Weather Advisory
Foothills and Valleys of Pierce and Southern King Counties
Winter Weather Advisory issued March 13 at 2:21PM PDT until March 14 at 11:00AM PDT by NWS Seattle WA
* WHAT...Snow. Additional snow accumulations up to one to two inches. * WHERE...Foothills and Valleys of Pierce and Southern King Counties. * WHEN...Until 11 AM PDT Saturday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Friday evening commute. * ADDITIONAL DETAILS...Widespread snow will wrap up this evening. A convergence zone will produce additional bands of snow in the foothills of the Cascades through the first part of Saturday.
Moderate
Likely
Expected
March 13th, 2026 02:21:00 pm PDT
March 13th, 2026 02:21:00 pm PDT
March 13th, 2026 09:15:00 pm PDT
Flood Warning
Chelan, WA
Flood Warning issued March 12 at 11:19AM PDT until March 14 at 8:00PM PDT by NWS Spokane WA
* WHAT...Flooding caused by rain and snowmelt is expected for the lower Stehekin Valley. * WHERE...A portion of North Central Washington, including Chelan county. * WHEN...Until 800 PM PDT Saturday. * IMPACTS...When the Stehekin River gauge hits 19.3 feet, water breaches the river bank. At 20 feet, water inundates some properties and overtops the temporary corduroy bridge. Company Creek Road is beginning to flood in places at the northern end. Battalion Creek culverts are beginning to be overtopped. At 20.5 feet, water begins to damage Wood Road. * ADDITIONAL DETAILS... - At 1114 AM PDT, the Stehekin River was above Action Stage (19.5 feet). Flooding is ongoing or expected the warned area. - Additional rainfall amounts of 0.5 to 1.5 inches are possible in the warned area through Saturday evening. A period of moderate to heavy rain and high winds will lead to snowmelt. Another peak of 19.8 feet is forecast Friday morning before receeding below Action stage Sunday. - Some locations that will experience flooding include... Company Creek Campground. - http://www.weather.gov/safety/flood
Severe
Likely
Immediate
March 12th, 2026 11:19:00 am PDT
March 12th, 2026 11:19:00 am PDT
March 14th, 2026 08:00:00 pm PDT
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This severe weather alerts report is valid for ZIP code 98040, accurately covering the area of Mercer Island, WA.
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