Extreme Heat Watch issued June 20 at 7:36PM EDT until June 24 at 8:00PM EDT by NWS Boston/Norton MA
* WHAT...Dangerously hot conditions with heat index values up to 109 possible. * WHERE...Portions of northern Connecticut, central, eastern, northeastern, southeastern, and western Massachusetts, and northern and southern Rhode Island. * WHEN...From Sunday morning through Tuesday evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.
Heat Advisory issued June 20 at 10:35PM EDT until June 22 at 8:00PM EDT by NWS Grand Rapids MI
* WHAT...Heat index values of 100 to 105 expected Saturday afternoon and Sunday afternoon, with low temperatures only falling into the mid to upper 70s Saturday night. * WHERE...Central, south central, southwest, and west central Michigan. * WHEN...From noon Saturday to 8 PM EDT Sunday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.
Beach Hazards Statement issued June 20 at 10:08PM EDT until June 22 at 8:00PM EDT by NWS Grand Rapids MI
* WHAT...High wave action, strong currents, and dangerous swimming conditions expected. Piers may be heavily swamped by waves. * WHERE...Van Buren county. * WHEN...From 4 AM EDT Saturday through Sunday evening. * IMPACTS...Strong currents can pull swimmers into deeper water and high waves can sweep people off piers. * ADDITIONAL DETAILS...South Haven south beach will be especially affected by waves and strong currents.
Beach Hazards Statement issued June 20 at 2:50PM EDT until June 21 at 8:00PM EDT by NWS Caribou ME
* WHAT....The warm temperatures in the upper 70s to lower 80s may cause people to underestimate the dangers of the cold water temperatures which are currently in the upper 40s to lower 50s. * WHERE...Coastal Hancock and Coastal Washington Counties. * WHEN...From Saturday morning through Saturday evening. * IMPACTS...The cold water temperatures can quickly cause hypothermia to anyone in the water. Anyone on boat or paddlecraft should use extreme caution.
Beach Hazards Statement issued June 20 at 3:44PM EDT until June 22 at 8:00PM EDT by NWS Marquette MI
* WHAT...Dangerous swimming conditions are expected due to high wave action and strong rip currents. * WHERE...Southern Schoolcraft County. * WHEN...From Saturday morning through Sunday evening. * IMPACTS...High wave action and dangerous currents will lead to life threatening swimming conditions. Waves in rapid succession can tire swimmers quickly. * ADDITIONAL DETAILS...Current related fatalities and rescues in the past have occurred due to similar wave conditions at locations listed below: For Southern Schoolcraft County: Near Lakeview Park and Seul Choix Point.
Beach Hazards Statement issued June 20 at 2:41PM EDT until June 21 at 8:00PM EDT by NWS Gray ME
* WHAT...Strong north winds resulted in upwelling and cooled water temperatures into the lower 50s along the coast. The warm air temperatures in the mid 70s to near 80 may cause people to underestimate the dangers of cold water. * WHERE...Coastal Cumberland, Sagadahoc, Lincoln and Knox Counties. * WHEN...From Saturday morning through Saturday evening. * IMPACTS...The cold water temperatures can quickly cause hypothermia to anyone immersed in the water. When the water temperature is below 60 degrees, the average submerged person could lose dexterity within minutes and be unable to accomplish simple tasks. Anyone on boats or paddlecraft should use
Extreme Heat Watch issued June 20 at 3:22PM EDT until June 24 at 8:00PM EDT by NWS Detroit/Pontiac MI
* WHAT...For the Heat Advisory, heat index values up to 102 expected. For the Extreme Heat Watch, dangerously hot conditions with heat index values up to 105 possible. * WHERE...All of southeast Michigan. * WHEN...For the Heat Advisory, from 2 PM Saturday to 8 AM EDT Sunday. For the Extreme Heat Watch, from Sunday morning through Tuesday evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. Hot temperatures and high humidity may cause heat illnesses.
Heat Advisory issued June 20 at 3:22PM EDT until June 22 at 8:00AM EDT by NWS Detroit/Pontiac MI
* WHAT...For the Heat Advisory, heat index values up to 102 expected. For the Extreme Heat Watch, dangerously hot conditions with heat index values up to 105 possible. * WHERE...All of southeast Michigan. * WHEN...For the Heat Advisory, from 2 PM Saturday to 8 AM EDT Sunday. For the Extreme Heat Watch, from Sunday morning through Tuesday evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. Hot temperatures and high humidity may cause heat illnesses.
Air Quality Alert issued June 20 at 11:18AM EDT by NWS Northern Indiana
The Michigan Department of Environment, Great Lakes, and Energy (EGLE) has declared an Air Quality Advisory for Saturday June 21, for elevated levels of ozone in parts of southwest Michigan. Pollutants within those areas are expected to be in the Unhealthy for Sensitive Groups (USG, Orange AQI) range. The Air Quality Advisory is in effect for the following counties in southwest Michigan... Berrien and Cass We are in the peak of ozone season, and the current forecast shows ozone-conducive conditions for Saturday. Surface temperatures in the 90s, coupled with ample sunlight and southwest winds, create an environment favorable for ozone
Air Quality Alert issued June 20 at 11:04AM EDT by NWS Grand Rapids MI
Air Quality Advisory for Saturday June 21, 2025 The Michigan Department of Environment, Great Lakes, and Energy (EGLE) has declared an Air Quality Advisory for June 21, 2025, for elevated levels of ozone in southwestern counties of Michigan. Pollutants within those areas are expected to be in the Unhealthy for Sensitive Groups (USG, Orange AQI) range. The Air Quality Advisory is in effect for the following Michigan counties: Allegan, Kent, Muskegon, Ottawa, and Van Buren We are in the peak of ozone season, and the current forecast shows ozone- conducive conditions for Saturday. Surface temperatures in the 90s, coupled with