Colby, WI 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 Colby.

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

Air Quality Alert issued July 12 at 5:55AM CDT by NWS Green Bay WI

The Wisconsin Department of Natural Resources has issued an Air Quality Advisory for the following counties: Adams, Ashland, Barron, Bayfield, Brown, Buffalo, Burnett, Calumet, Chippewa, Clark, Columbia, Crawford, Dane, Dodge, Door, Douglas, Dunn, Eau Claire, Florence, Fond du Lac, Forest, Grant, Green, Green Lake, Iowa, Iron, Jackson, Jefferson, Juneau, Kenosha, Kewaunee, La Crosse, Lafayette, Langlade, Lincoln, Manitowoc, Marathon, Marinette, Marquette, Menominee, Milwaukee, Monroe, Oconto, Oneida, Outagamie, Ozaukee, Pepin, Pierce, Polk, Portage, Price, Racine, Richland, Rock, Rusk, Sauk, Sawyer, Shawano, Sheboygan, St. Croix, Taylor, Trempealeau, Vernon, Vilas, Walworth, Washburn, Washington, Waukesha, Waupaca, Waushara, Winnebago, Wood. WHAT...The PM2.5 AQI is expected to reach the Unhealthy for Sensitive Groups (USG) to Unhealthy level. WHERE...Statewide WHEN...Now through 12:00 PM CDT Monday July 14th Precautionary/Preparedness Actions: Sensitive groups: Consider rescheduling or moving all activities inside. Go inside if you have symptoms. People with asthma: Follow your asthma action plan and keep quick-relief medicine handy. People with heart disease: Symptoms such as palpitations, shortness of breath, or unusual fatigue may indicate a serious problem. If you have any of these, contact your health care provider. Everyone else: Keep outdoor activities shorter and less intense. Go inside if you have symptoms. Additional Details: Canadian wildfire smoke will impact all of Wisconsin throughout the weekend. Initial impacts are expected to reach central Wisconsin by early this afternoon, and southeastern Wisconsin by late evening. The heaviest smoke is anticipated for locations farther north, with periods of Very Unhealthy NowCast AQI possible. USG to Unhealthy AQI will be more likely for central and southeastern Wisconsin. The lowest concentrations are expected across southwestern Wisconsin, where Moderate to USG AQI is more likely. By Sunday, PM2.5 concentrations will be generally lower. However, USG to Unhealthy AQI will remain possible statewide, with higher concentrations more likely to the north. For more information on current air quality, please see: https://airquality.wi.gov

Flood Warning issued July 12 at 4:17AM CDT until July 12 at 9:24PM CDT by NWS Milwaukee/Sullivan WI

...The Flood Warning is extended for the following rivers in Wisconsin... East Branch Pecatonica River Near Blanchardville affecting Lafayette County. Pecatonica River At Darlington affecting Lafayette County. .Two to four inches of rain has fallen and will likely cause flooding on portions of the East Branch of the Pecatonica River and the Pecatonica River on Saturday. * WHAT...Minor flooding is forecast. * WHERE...Pecatonica River at Darlington. * WHEN...Until late this evening. * IMPACTS...At 13.5 feet, Floodwaters touch Main Street in Darlington. A part of the Lafayette County Fairgrounds has 2 to 3 feet of water over it. * ADDITIONAL DETAILS... - At 2:00 AM CDT Saturday the stage was 9.7 feet. - Bankfull stage is 10.0 feet. - Forecast...The river is expected to rise above flood stage this morning to a crest of 13.7 feet this morning. It will then fall below flood stage late this morning. - Flood stage is 13.5 feet. - Flood History...This crest compares to a previous crest of 13.8 feet on 05/23/2004. - http://www.weather.gov/safety/flood

Flood Warning issued July 12 at 4:17AM CDT until July 12 at 10:00PM CDT by NWS Milwaukee/Sullivan WI

...The Flood Warning is extended for the following rivers in Wisconsin... East Branch Pecatonica River Near Blanchardville affecting Lafayette County. Pecatonica River At Darlington affecting Lafayette County. .Two to four inches of rain has fallen and will likely cause flooding on portions of the East Branch of the Pecatonica River and the Pecatonica River on Saturday. * WHAT...Minor flooding is forecast. * WHERE...East Branch Pecatonica River near Blanchardville. * WHEN...Until late this evening. * IMPACTS...At 11.0 feet, Floodwaters cover a portion of Highway H and floodwaters are into McKellar Park in Blanchardville. * ADDITIONAL DETAILS... - At 3:00 AM CDT Saturday the stage was 10.9 feet. - Bankfull stage is 9.0 feet. - Forecast...The river is expected to rise above flood stage early this morning to a crest of 11.1 feet this morning. It will then fall below flood stage late this morning. - Flood stage is 11.0 feet. - Flood History...This crest compares to a previous crest of 11.1 feet on 05/25/2024. - http://www.weather.gov/safety/flood

Air Quality Alert issued July 12 at 3:38AM CDT by NWS Milwaukee/Sullivan WI

The Wisconsin Department of Natural Resources has issued an Air Quality Advisory for the following counties: Adams, Ashland, Barron, Bayfield, Brown, Buffalo, Burnett, Calumet, Chippewa, Clark, Columbia, Crawford, Dane, Dodge, Door, Douglas, Dunn, Eau Claire, Florence, Fond du Lac, Forest, Grant, Green, Green Lake, Iowa, Iron, Jackson, Jefferson, Juneau, Kenosha, Kewaunee, La Crosse, Lafayette, Langlade, Lincoln, Manitowoc, Marathon, Marinette, Marquette, Menominee, Milwaukee, Monroe, Oconto, Oneida, Outagamie, Ozaukee, Pepin, Pierce, Polk, Portage, Price, Racine, Richland, Rock, Rusk, Sauk, Sawyer, Shawano, Sheboygan, St. Croix, Taylor, Trempealeau, Vernon, Vilas, Walworth, Washburn, Washington, Waukesha, Waupaca, Waushara, Winnebago, Wood. WHAT...The PM2.5 AQI is expected to reach the Unhealthy for Sensitive Groups (USG) to Unhealthy level. WHERE...Statewide. WHEN...12:00 AM CDT Saturday July 12th through 12:00 PM CDT Monday July 14th Precautionary/Preparedness Actions: Sensitive groups: Consider rescheduling or moving all activities inside. Go inside if you have symptoms. People with asthma: Follow your asthma action plan and keep quick-relief medicine handy. People with heart disease: Symptoms such as palpitations, shortness of breath, or unusual fatigue may indicate a serious problem. If you have any of these, contact your health care provider. Everyone else: Keep outdoor activities shorter and less intense. Go inside if you have symptoms. Additional Details: Canadian wildfire smoke will impact all of Wisconsin throughout the weekend. Initial impacts are expected for northwestern counties starting as early as midnight Friday night, reaching central Wisconsin by early Saturday afternoon, and southeastern Wisconsin by late Saturday. The heaviest smoke is anticipated for locations farther north, with periods of Very Unhealthy NowCast AQI possible. USG to Unhealthy AQI will be more likely for central and southeastern Wisconsin. The lowest concentrations are expected across southwestern Wisconsin, where Moderate to USG AQI is more likely. By Sunday, PM2.5 concentrations will be generally lower. However, USG to Unhealthy AQI will remain possible statewide, with higher concentrations more likely to the north. For more information on current air quality, please see: https://airquality.wi.gov

Air Quality Alert issued July 12 at 3:15AM CDT by NWS Twin Cities/Chanhassen MN

The Wisconsin Department of Natural Resources has issued an Air Quality Advisory for the following counties: Adams, Ashland, Barron, Bayfield, Brown, Buffalo, Burnett, Calumet, Chippewa, Clark, Columbia, Crawford, Dane, Dodge, Door, Douglas, Dunn, Eau Claire, Florence, Fond du Lac, Forest, Grant, Green, Green Lake, Iowa, Iron, Jackson, Jefferson, Juneau, Kenosha, Kewaunee, La Crosse, Lafayette, Langlade, Lincoln, Manitowoc, Marathon, Marinette, Marquette, Menominee, Milwaukee, Monroe, Oconto, Oneida, Outagamie, Ozaukee, Pepin, Pierce, Polk, Portage, Price, Racine, Richland, Rock, Rusk, Sauk, Sawyer, Shawano, Sheboygan, St. Croix, Taylor, Trempealeau, Vernon, Vilas, Walworth, Washburn, Washington, Waukesha, Waupaca, Waushara, Winnebago, Wood. WHAT...The PM2.5 AQI is expected to reach the Unhealthy for Sensitive Groups (USG) to Unhealthy level. WHERE...Statewide WHEN...12:00 AM CDT Saturday July 12th through 12:00 PM CDT Monday July 14th Precautionary/Preparedness Actions: Sensitive groups: Consider rescheduling or moving all activities inside. Go inside if you have symptoms. People with asthma: Follow your asthma action plan and keep quick-relief medicine handy. People with heart disease: Symptoms such as palpitations, shortness of breath, or unusual fatigue may indicate a serious problem. If you have any of these, contact your health care provider. Everyone else: Keep outdoor activities shorter and less intense. Go inside if you have symptoms. Additional Details: Canadian wildfire smoke will impact all of Wisconsin throughout the weekend. Initial impacts are expected for northwestern counties starting as early as midnight Friday night, reaching central Wisconsin by early Saturday afternoon, and southeastern Wisconsin by late Saturday. The heaviest smoke is anticipated for locations farther north, with periods of Very Unhealthy NowCast AQI possible. USG to Unhealthy AQI will be more likely for central and southeastern Wisconsin. The lowest concentrations are expected across southwestern Wisconsin, where Moderate to USG AQI is more likely. By Sunday, PM2.5 concentrations will be generally lower. However, USG to Unhealthy AQI will remain possible statewide, with higher concentrations more likely to the north. For more information on current air quality, please see: https://airquality.wi.gov

Air Quality Alert issued July 11 at 3:52PM CDT by NWS Duluth MN

The Wisconsin Department of Natural Resources has issued an Air Quality Advisory for the following counties: Adams, Ashland, Barron, Bayfield, Brown, Buffalo, Burnett, Calumet, Chippewa, Clark, Columbia, Crawford, Dane, Dodge, Door, Douglas, Dunn, Eau Claire, Florence, Fond du Lac, Forest, Grant, Green, Green Lake, Iowa, Iron, Jackson, Jefferson, Juneau, Kenosha, Kewaunee, La Crosse, Lafayette, Langlade, Lincoln, Manitowoc, Marathon, Marinette, Marquette, Menominee, Milwaukee, Monroe, Oconto, Oneida, Outagamie, Ozaukee, Pepin, Pierce, Polk, Portage, Price, Racine, Richland, Rock, Rusk, Sauk, Sawyer, Shawano, Sheboygan, St. Croix, Taylor, Trempealeau, Vernon, Vilas, Walworth, Washburn, Washington, Waukesha, Waupaca, Waushara, Winnebago, Wood. * WHAT...The PM2.5 AQI is expected to reach the Unhealthy for Sensitive Groups (USG) to Unhealthy level. * WHERE...WI Statewide. * WHEN...12 AM CDT Saturday July 12 until 12 PM CDT Monday July 14. * ADDITIONAL DETAILS...Canadian wildfire smoke will impact all of Wisconsin throughout the weekend. Initial impacts are expected for northwestern counties starting as early as midnight Friday night, reaching central Wisconsin by early Saturday afternoon, and southeastern Wisconsin by late Saturday. The heaviest smoke is anticipated for locations farther north, with periods of Very Unhealthy NowCast AQI possible. USG to Unhealthy AQI will be more likely for central and southeastern Wisconsin. The lowest concentrations are expected across southwestern Wisconsin, where Moderate to USG AQI is more likely. By Sunday, PM2.5 concentrations will be generally lower. However, USG to Unhealthy AQI will remain possible statewide, with higher concentrations more likely to the north.

Air Quality Alert issued July 11 at 3:38PM CDT by NWS La Crosse WI

The Wisconsin Department of Natural Resources has issued an Air Quality Advisory for the following counties: Adams, Buffalo, Clark, Crawford, Grant, Jackson, Juneau, La Crosse, Monroe, Richland, Taylor, Trempealeau, and Vernon. WHAT...The PM2.5 AQI is expected to reach the Unhealthy for Sensitive Groups (USG) to Unhealthy level. WHERE...West central and southwestern Wisconsin. WHEN...1200 AM CDT Saturday July 12th through 1200 PM CDT Monday July 14th. Precautionary/Preparedness Actions: Sensitive groups: consider rescheduling or moving all activities inside. Go inside if you have symptoms. People with asthma: Follow your asthma action plan and keep quick-relief medicine handy. People with heart disease: Symptoms such as palpitations, shortness of breath, or unusual fatigue may indicate a serious problem. If you have any of these, contact your health care provider. Everyone else: Keep outdoor activities shorter and less intense. Go inside if you have symptoms. Additional Details: Canadian wildfire smoke will impact all of Wisconsin throughout the weekend. Initial impacts are expected for northwestern counties starting as early as midnight Friday night, reaching central Wisconsin by early Saturday afternoon, and southeastern Wisconsin by late Saturday. The heaviest smoke is anticipated for locations farther north, with periods of Very Unhealthy NowCast AQI possible. USG to Unhealthy AQI will be more likely for central and southeastern Wisconsin. The lowest concentrations are expected across southwestern Wisconsin, where Moderate to USG AQI is more likely. By Sunday, PM2.5 concentrations will be generally lower. However, USG to Unhealthy AQI will remain possible statewide, with higher concentrations more likely to the north. For more information on current air quality, please see: https://airquality.wi.gov

Air Quality Alert issued July 11 at 3:36PM CDT by NWS Green Bay WI

The Wisconsin Department of Natural Resources has issued an Air Quality Advisory for the following counties: Brown, Calumet, Door, Florence, Forest, Kewaunee, Langlade, Lincoln, Manitowoc, Marathon, Marinette, Menominee, Oconto, Oneida, Outagamie, Portage, Shawano, Vilas, Waupaca, Waushara, Winnebago, Wood. WHAT...The PM2.5 AQI is expected to reach the Unhealthy for Sensitive Groups (USG) to Unhealthy level. WHERE...Statewide WHEN...12:00 AM CDT Saturday July 12th through 12:00 PM CDT Monday July 14th Precautionary/Preparedness Actions: Sensitive groups: Consider rescheduling or moving all activities inside. Go inside if you have symptoms. People with asthma: Follow your asthma action plan and keep quick-relief medicine handy. People with heart disease: Symptoms such as palpitations, shortness of breath, or unusual fatigue may indicate a serious problem. If you have any of these, contact your health care provider. Everyone else: Keep outdoor activities shorter and less intense. Go inside if you have symptoms. Additional Details: Canadian wildfire smoke will impact all of Wisconsin throughout the weekend. Initial impacts are expected for northwestern counties starting as early as midnight tonight, reaching central Wisconsin by early Saturday afternoon, and southeastern Wisconsin by late Saturday. The heaviest smoke is anticipated for locations farther north, with periods of Very Unhealthy NowCast AQI possible. USG to Unhealthy AQI will be more likely for central and southeastern Wisconsin. The lowest concentrations are expected across southwestern Wisconsin, where Moderate to USG AQI is more likely. By Sunday, PM2.5 concentrations will be generally lower. However, USG to Unhealthy AQI will remain possible statewide, with higher concentrations more likely to the north. For more information on current air quality, please see: https://airquality.wi.gov