Heat Advisory
URGENT - WEATHER MESSAGE
National Weather Service Grand Rapids MI
1035 PM EDT Fri Jun 20 2025
MIZ037>040-043>046-050>052-056>059-064>067-071>074-211215-
/O.CON.KGRR.HT.Y.0001.250621T1600Z-250623T0000Z/
Mason-Lake-Osceola-Clare-Oceana-Newaygo-Mecosta-Isabella-Muskegon-
Montcalm-Gratiot-Ottawa-Kent-Ionia-Clinton-Allegan-Barry-Eaton-
Ingham-Van Buren-Kalamazoo-Calhoun-Jackson-
Including the cities of Muskegon, Ludington, Reed City, Lansing,
Hastings, Baldwin, Jenison, Holland, Big Rapids, Greenville,
Battle Creek, Clare, Ionia, Fremont, Jackson, Alma, Mount
Pleasant, Grand Haven, Hart, Charlotte, Grand Rapids, South
Haven, St. Johns, and Kalamazoo
1035 PM EDT Fri Jun 20 2025
...HEAT ADVISORY REMAINS IN EFFECT FROM NOON SATURDAY TO 8 PM EDT
SUNDAY...
* 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.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
&&
$$
CAS
URGENT - WEATHER MESSAGE
National Weather Service Chicago IL
925 PM CDT Fri Jun 20 2025
ILZ003>006-008-010>013-019>021-023-032-033-039-106>108-INZ001-002-
010-011-019-211230-
/O.CON.KLOT.HT.Y.0001.250621T1500Z-250624T0500Z/
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-La
Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-Northern
Will-Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-
Benton-
Including the cities of Crystal Lake, Rensselaer, DeMotte,
McHenry, DeKalb, Mundelein, Naperville, Pontiac, Fairbury, Plano,
Bourbonnais, Crete, Byron, Peotone, Paxton, Woodstock, Aurora,
Kentland, Chesterton, Watseka, Elgin, Gary, Wheaton, Gibson City,
Lombard, Algonquin, Kankakee, Mokena, Channahon, Beecher, Coal
City, Ottawa, Carol Stream, Minooka, Oxford, Dwight, Gilman,
Belvidere, Gurnee, Yorkville, Morris, Streator, Manhattan,
Buffalo Grove, Valparaiso, Morocco, Dixon, Sycamore, Mendota,
Downers Grove, Waukegan, Plainfield, Hammond, Merrillville,
Rochelle, Bradley, La Salle, Oswego, Bolingbrook, Wilmington,
Portage, Fowler, Rockford, Roselawn, Joliet, Marseilles, and
Oregon
925 PM CDT Fri Jun 20 2025 /1025 PM EDT Fri Jun 20 2025/
...HEAT ADVISORY REMAINS IN EFFECT FROM 10 AM CDT /11 AM EDT/
SATURDAY TO MIDNIGHT CDT /1 AM EDT/ MONDAY NIGHT...
* WHAT...Heat index values around 105 degrees expected.
* WHERE...Portions of central, east central, north central, and
northeast Illinois and northwest Indiana.
* WHEN...From 10 AM CDT /11 AM EDT/ Saturday to midnight CDT /1 AM
EDT/ Monday Night.
* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.
* ADDITIONAL DETAILS...Heat impacts will be worsened by consecutive
days of hot and humid conditions, with overnight lows in the mid
70s providing little relief.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
Monitor the latest forecasts and warnings for updates.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Detroit/Pontiac MI
322 PM EDT Fri Jun 20 2025
MIZ047>049-053>055-060>063-068>070-075-076-082-083-210830-
/O.NEW.KDTX.HT.Y.0001.250621T1800Z-250622T1200Z/
/O.EXT.KDTX.XH.A.0001.250622T1200Z-250625T0000Z/
Midland-Bay-Huron-Saginaw-Tuscola-Sanilac-Shiawassee-Genesee-
Lapeer-St. Clair-Livingston-Oakland-Macomb-Washtenaw-Wayne-
Lenawee-Monroe-
Including the cities of Lapeer, Bay City, Warren, Monroe, Caro,
Pontiac, Owosso, Adrian, Ann Arbor, Saginaw, Sandusky, Midland,
Howell, Detroit, Flint, Port Huron, and Bad Axe
322 PM EDT Fri Jun 20 2025
...HEAT ADVISORY IN EFFECT FROM 2 PM SATURDAY TO 8 AM EDT SUNDAY...
...EXTREME HEAT WATCH NOW IN EFFECT FROM SUNDAY MORNING THROUGH
TUESDAY EVENING...
* 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.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
Do not leave young children and pets in unattended vehicles. Car
interiors will reach lethal temperatures in a matter of minutes.
Monitor the latest forecasts and warnings for updates.
Check with local emergency management officials for information on
cooling center availability.
Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to early morning
or evening. Take action when you see symptoms of heat exhaustion and
heat stroke.
&&
$$
SF
URGENT - WEATHER MESSAGE
National Weather Service Indianapolis IN
1253 PM EDT Fri Jun 20 2025
INZ021-028>031-035>049-051>057-060>065-067>072-211100-
/O.CON.KIND.HT.Y.0001.250621T1700Z-250625T0000Z/
Carroll-Warren-Tippecanoe-Clinton-Howard-Fountain-Montgomery-
Boone-Tipton-Hamilton-Madison-Delaware-Randolph-Vermillion-Parke-
Putnam-Hendricks-Marion-Hancock-Henry-Vigo-Clay-Owen-Morgan-
Johnson-Shelby-Rush-Sullivan-Greene-Monroe-Brown-Bartholomew-
Decatur-Knox-Daviess-Martin-Lawrence-Jackson-Jennings-
Including the cities of Lafayette, Greenfield, Terre Haute,
Linton, Bedford, Flora, Frankfort, Veedersburg, Anderson,
Indianapolis, Mooresville, Rockville, Shelbyville, Brownsburg,
Crawfordsville, Zionsville, Clinton, Greencastle, Brazil,
Danville, Gosport, Noblesville, Columbus, Williamsport, Lebanon,
Bloomfield, Attica, Union City, Farmland, Shelburn, Rushville,
Greensburg, Seymour, Franklin, Parker City, Jasonville, Fairview
Park, Covington, Shoals, Kokomo, Rosedale, Delphi, Tipton,
Carlisle, Plainfield, Vincennes, Fishers, Winchester, New Castle,
West Lafayette, Montezuma, West Lebanon, Farmersburg, Spencer,
Washington, North Vernon, Martinsville, Carmel, Greenwood,
Sullivan, Nashville, Muncie, Bloomington, Loogootee, Mitchell,
and Worthington
1253 PM EDT Fri Jun 20 2025
...HEAT ADVISORY REMAINS IN EFFECT FROM 1 PM SATURDAY TO 8 PM EDT
TUESDAY...
* WHAT...Heat index values up to 105 expected each day.
* WHERE...Portions of central, east central, north central, south
central, southeast, southwest, and west central Indiana.
* WHEN...From 1 PM Saturday to 8 PM EDT Tuesday.
* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to early morning
or evening. Take action when you see symptoms of heat exhaustion and
heat stroke.
To reduce risk during outdoor work, the Occupational Safety and
Health Administration recommends scheduling frequent rest breaks in
shaded or air conditioned environments. Anyone overcome by heat
should be moved to a cool and shaded location. Heat stroke is an
emergency! Call 9 1 1.
&&
$$
CM
