Boise Warnings, Watches and Advisories

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 Boise.

Use the Radar Maps link provided to understand the trajectory of a storm.

Wind Advisory issued May 18 at 1:27PM MDT until May 18 at 9:00PM MDT by NWS Boise ID

* WHAT...Northwest winds 25 to 35 mph with gusts up to 50 mph. * WHERE...Southern Twin Falls County and Camas Prairie. * WHEN...Until 9 PM MDT this evening. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.

Wind Advisory issued May 18 at 1:27PM MDT until May 18 at 9:00PM MDT by NWS Boise ID

* WHAT...For the Wind Advisory, northwest winds 25 to 35 mph with gusts up to 55 mph. For the Frost Advisory, temperatures between 32 and 36 degrees will result in frost formation. * WHERE...Western Magic Valley and Upper Treasure Valley. * WHEN...For the Wind Advisory, until 9 PM MDT this evening. For the Frost Advisory, from midnight tonight to 8 AM MDT Monday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.

Frost Advisory issued May 18 at 1:27PM MDT until May 19 at 8:00AM MDT by NWS Boise ID

* WHAT...For the Wind Advisory, northwest winds 25 to 35 mph with gusts up to 55 mph. For the Frost Advisory, temperatures between 32 and 36 degrees will result in frost formation. * WHERE...Western Magic Valley and Upper Treasure Valley. * WHEN...For the Wind Advisory, until 9 PM MDT this evening. For the Frost Advisory, from midnight tonight to 8 AM MDT Monday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.

Frost Advisory issued May 18 at 12:08PM PDT until May 19 at 8:00AM PDT by NWS Spokane WA

* WHAT...Temperatures as low as 32-36 will result in frost formation. * WHERE...Twisp, Newport, Potlatch, Creston, Mazama, Plummer, Kamiah, Orin-Rice Road, Tekoa, Wilbur, Soldiers Meadow Road, Colville, Winchester, Inchelium, Metaline Falls, Methow, Winthrop, La Crosse, Colfax, Chewelah, Sherman Pass, Oakesdale, Tiger, Uniontown, Boulder Creek Road, Grand Coulee, Flowery Trail Road, Northport, Kettle Falls, Pullman, Loup Loup Pass, Coulee City, Republic, Odessa, Springdale-Hunters Road, Nezperce, Chesaw Road, Rosalia, Deer Park, Conconully, Ritzville, Fruitland, Harrington, Wauconda, Ione, Highway 20 Wauconda Summit, Genesee, Moscow, Craigmont, and Metaline. * WHEN...From 2 AM to 8 AM PDT Monday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.

Wind Advisory issued May 18 at 2:00AM MDT until May 18 at 9:00PM MDT by NWS Pocatello ID

...FROST ADVISORY IN EFFECT FROM 2 AM TO 9 AM MDT MONDAY... * WHAT...For the Wind Advisory, west winds 25 to 35 mph with gusts up to 50 mph expected. For the Frost Advisory, temperatures as low as 24 will result in frost formation. * WHERE...Eastern Magic Valley, Shoshone/Lava Beds, and Lower Snake River Plain. * WHEN...For the Wind Advisory, from 6 AM this morning to 9 PM MDT this evening. For the Frost Advisory, from 2 AM to 9 AM MDT Monday. * IMPACTS...Gusty winds could make driving difficult, especially for high profile vehicles. Unsecured objects may be blown around. Strong winds and rough waves on area lakes will create hazardous conditions for small craft. Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.

Wind Advisory issued May 18 at 2:00AM MDT until May 18 at 9:00PM MDT by NWS Pocatello ID

* WHAT...Northwest winds 25 to 35 mph with gusts up to 60 mph expected. * WHERE...Raft River Region and Southern Hills/Albion Mountains. * WHEN...From 6 AM this morning to 9 PM MDT this evening. * IMPACTS...Gusty winds could make driving difficult, especially for high profile vehicles. Unsecured objects may be blown around. Strong winds and rough waves on area lakes will create hazardous conditions for small craft.

Frost Advisory issued May 18 at 2:00AM MDT until May 19 at 9:00AM MDT by NWS Pocatello ID

...FROST ADVISORY IN EFFECT FROM 2 AM TO 9 AM MDT MONDAY... * WHAT...For the Wind Advisory, west winds 25 to 35 mph with gusts up to 50 mph expected. For the Frost Advisory, temperatures as low as 24 will result in frost formation. * WHERE...Eastern Magic Valley, Shoshone/Lava Beds, and Lower Snake River Plain. * WHEN...For the Wind Advisory, from 6 AM this morning to 9 PM MDT this evening. For the Frost Advisory, from 2 AM to 9 AM MDT Monday. * IMPACTS...Gusty winds could make driving difficult, especially for high profile vehicles. Unsecured objects may be blown around. Strong winds and rough waves on area lakes will create hazardous conditions for small craft. Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.

Frost Advisory issued May 18 at 2:00AM MDT until May 19 at 9:00AM MDT by NWS Pocatello ID

* WHAT...Temperatures as low as 33 will result in frost formation. * WHERE...Arco/Mud Lake Desert and Upper Snake River Plain. * WHEN...From 2 AM to 9 AM MDT Monday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.