Heat Advisory
URGENT - WEATHER MESSAGE
National Weather Service Lincoln IL
741 PM CDT Sun Aug 17 2025
ILZ036-040>042-047>054-056-061>063-066>068-071>073-180930-
/O.EXT.KILX.HT.Y.0007.000000T0000Z-250819T0100Z/
Fulton-Schuyler-Mason-Logan-Cass-Menard-Scott-Morgan-Sangamon-
Christian-Macon-Moultrie-Coles-Shelby-Cumberland-Clark-Effingham-
Jasper-Crawford-Clay-Richland-Lawrence-
Including the cities of Robinson, Rushville, Jacksonville,
Marshall, Charleston, Beardstown, Springfield, Decatur,
Shelbyville, Effingham, Petersburg, Lincoln, Canton, Newton,
Sullivan, Winchester, Olney, Lawrenceville, Taylorville, Havana,
Greenup, Flora, and Mattoon
741 PM CDT Sun Aug 17 2025
...HEAT ADVISORY NOW IN EFFECT UNTIL 8 PM CDT MONDAY...
* WHAT...Peak afternoon heat index values 100 to 105 degrees.
* WHERE...Areas generally south of a line from Havana, to Decatur,
to Mattoon.
* WHEN...Until 8 PM CDT Monday.
* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.
* ADDITIONAL DETAILS...The overnight heat index will only fall into
the mid 70s
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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.
If you do not have air conditioning in your home or lack shelter,
you can call 211 or visit keepcool.illinois.gov for assistance
locating appropriate shelter from the heat.
&&
$$
Geelhart
URGENT - WEATHER MESSAGE
National Weather Service St Louis MO
228 PM CDT Sun Aug 17 2025
ILZ058>060-064-065-069-070-074-079-095>102-MOZ018-019-026-027-
034>036-041-042-047>052-059>065-072>075-084-085-099-181030-
/O.CON.KLSX.HT.Y.0003.000000T0000Z-250819T0100Z/
Greene IL-Macoupin IL-Montgomery IL-Bond IL-Fayette IL-Clinton IL-
Marion IL-Washington IL-Randolph IL-Adams IL-Brown IL-Pike IL-
Calhoun IL-Jersey IL-Madison IL-Saint Clair IL-Monroe IL-Knox MO-
Lewis MO-Shelby MO-Marion MO-Monroe MO-Ralls MO-Pike MO-Boone MO-
Audrain MO-Moniteau MO-Cole MO-Osage MO-Callaway MO-Montgomery MO-
Lincoln MO-Gasconade MO-Warren MO-Saint Charles MO-Franklin MO-
Saint Louis MO-Saint Louis City MO-Jefferson MO-Crawford MO-
Washington MO-Saint Francois MO-Sainte Genevieve MO-Iron MO-
Madison MO-Reynolds MO-
Including the cities of Cahokia, Sparta, Jefferson City, Saint
Charles, Chester, Farmington, Mexico, Sullivan, Salem, Fulton,
Alton, Columbia, Quincy, Washington, Union, Centralia,
Litchfield, Hannibal, Vandalia, Edwardsville, Mount Sterling,
Saint Louis, Belleville, Pittsfield, and Bowling Green
228 PM CDT Sun Aug 17 2025
...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM CDT MONDAY...
* WHAT...Heat index values up to 107.
* WHERE...Portions of south central, southwest, and west central
Illinois and central, east central, northeast, and southeast
Missouri.
* WHEN...Until 8 PM CDT Monday.
* 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. Young children and
pets should never be left unattended in vehicles under any
circumstances. Take extra precautions if you work or spend time
outside. When possible reschedule strenuous activities to early
morning or evening. Know the signs and symptoms of heat exhaustion
and heat stroke. Wear lightweight and loose fitting clothing when
possible. 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.
People in the Saint Louis Metropolitan Area can get information
about cooling centers or energy assistance related to the excessive
heat by calling the United Way of Greater Saint Louis at
800-427-4626, or if calling from a land line phone dial 2-1-1. You
can also call Cool Down Saint Louis at 314-241-7668.
&&
$$
Gosselin
Hazardous Weather Outlook
Hazardous Weather Outlook
National Weather Service St Louis MO
213 AM CDT Mon Aug 18 2025
ILZ058>060-064-065-069-070-074-079-095>102-MOZ018-019-026-027-
034>036-041-042-047>052-059>065-072>075-084-085-099-190715-
Greene IL-Macoupin IL-Montgomery IL-Bond IL-Fayette IL-Clinton IL-
Marion IL-Washington IL-Randolph IL-Adams IL-Brown IL-Pike IL-
Calhoun IL-Jersey IL-Madison IL-Saint Clair IL-Monroe IL-Knox MO-
Lewis MO-Shelby MO-Marion MO-Monroe MO-Ralls MO-Pike MO-Boone MO-
Audrain MO-Moniteau MO-Cole MO-Osage MO-Callaway MO-Montgomery MO-
Lincoln MO-Gasconade MO-Warren MO-Saint Charles MO-Franklin MO-
Saint Louis MO-Saint Louis City MO-Jefferson MO-Crawford MO-
Washington MO-Saint Francois MO-Sainte Genevieve MO-Iron MO-
Madison MO-Reynolds MO-
213 AM CDT Mon Aug 18 2025
This Hazardous Weather Outlook is for portions of eastern and
central Missouri as well as west central and southwest Illinois.
.DAY ONE...Today and tonight.
A Heat Advisory remains in effect through this evening. Isolated
thunderstorms are expected this afternoon.
.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.
Heat and humidity continue for parts of the area on Tuesday.
Thunderstorms are possible Tuesday and Wednesday.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is not expected at this time.
$$
Kimble
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
937 PM CDT Sun Aug 17 2025
ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-
010-011-019-190245-
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
937 PM CDT Sun Aug 17 2025 /1037 PM EDT Sun Aug 17 2025/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Tonight.
Weather hazards expected...
Limited Thunderstorm Risk.
Limited Excessive Heat Risk.
DISCUSSION...
Isolated thunderstorms are possible tonight, mainly west of a
Rockford to Watseka line. Any storms that do occur will be
capable of locally heavy downpours and gusty winds.
High waves and dangerous currents are expected at Lake Michigan
beaches.
.DAYS TWO THROUGH SEVEN...Monday through Saturday.
Monday...
Elevated Flooding Risk.
Elevated Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Limited Excessive Heat Risk.
Tuesday...
Limited Flooding Risk.
Limited Thunderstorm Risk.
Limited Excessive Heat Risk.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
GENERAL STORM MOTION OF THE DAY:
Moving toward the southeast at 15 mph.
$$
Hazardous Weather Outlook...UPDATED
National Weather Service Milwaukee/Sullivan WI
906 PM CDT Sun Aug 17 2025
WIZ046-047-051-052-056>060-062>072-190215-
Marquette-Green Lake-Fond du Lac-Sheboygan-Sauk-Columbia-Dodge-
Washington-Ozaukee-Iowa-Dane-Jefferson-Waukesha-Milwaukee-
Lafayette-Green-Rock-Walworth-Racine-Kenosha-
906 PM CDT Sun Aug 17 2025
This Hazardous Weather Outlook is for portions of east central
Wisconsin, south central Wisconsin and southeast Wisconsin.
.DAY ONE...Tonight
Beach Hazards Statement in effect for waves from 3 to 6 feet as
breezy onshore winds remain in place. Expect dangerous swimming
conditions especially for northerly exposed beaches, piers, and/or
breakwalls.
.DAYS TWO THROUGH SEVEN...Monday through Sunday
Expect Beach Hazards conditions to continue through at least
Monday morning, possibly into the afternoon.
There will be continued chances for thunderstorms Monday through
Tuesday morning. Storms will be capable of producing cloud to
ground lightning, localized damaging wind gusts and locally heavy
rainfall, particularly in locations experiencing repeated rounds
of storms.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is not expected at this time, but CoCoRaHS rain
reports are appreciated.
$$
Hazardous Weather Outlook
National Weather Service La Crosse WI
308 PM CDT Sun Aug 17 2025
IAZ008>011-018-019-029-030-MNZ096-WIZ017-029-034-041>044-053>055-
061-181100-
Mitchell-Howard-Winneshiek-Allamakee-Floyd-Chickasaw-Fayette-
Clayton-Houston-Taylor-Clark-Jackson-La Crosse-Monroe-Juneau-
Adams-Vernon-Crawford-Richland-Grant-
308 PM CDT Sun Aug 17 2025
This Hazardous Weather Outlook is for portions of southeast
Minnesota...northeast Iowa and southwest into central Wisconsin.
.DAY ONE...This Afternoon and Tonight
Storm chances increase late this evening and overnight. Heavy
rainfall rates with these storms will be capable of flash
flooding.
.DAYS TWO THROUGH SEVEN...Monday through Saturday
Widespread storms Monday and these storms may linger in central
Wisconsin Monday night. Heavy rainfall with these storms will be
capable of flash flooding.
.SPOTTER INFORMATION STATEMENT...
No action needed.
.EMERGENCY MANAGEMENT COORDINATION...
No webinar is scheduled.
$$
Hazardous Weather Outlook
National Weather Service Quad Cities IA IL
304 PM CDT Sun Aug 17 2025
IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007-
009-015>018-024>026-034-035-MOZ009-010-182015-
Buchanan-Delaware-Dubuque-Benton-Linn-Jones-Jackson-Iowa-Johnson-
Cedar-Clinton-Muscatine-Scott-Keokuk-Washington-Louisa-Jefferson-
Henry IA-Des Moines-Van Buren-Lee-Jo Daviess-Stephenson-Carroll-
Whiteside-Rock Island-Henry IL-Bureau-Putnam-Mercer-Henderson-
Warren-Hancock-McDonough-Scotland-Clark-
304 PM CDT Sun Aug 17 2025
This Hazardous Weather Outlook is for portions of north central
Illinois...northwest Illinois...west central Illinois...east
central Iowa...northeast Iowa...southeast Iowa and northeast
Missouri.
.DAY ONE...THIS AFTERNOON AND TONIGHT
Hot and humid conditions will continue today. A Heat Advisory
has been issued for this afternoon and early evening for locations
generally along and south of Highway 30.
Chances of thunderstorms will increase once again this evening
into tonight, some of which could become strong to severe. The
Storm Prediction Center has a Marginal Risk (level 1 of 5) of
severe storms outlooked for locations west of an Iowa City to
Dubuque line. Damaging winds are the main threats, with the
potential of torrential downpours that could lead to localized
flash flooding.
.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY
Hot and humid conditions are likely once again Monday, with
additional heat headlines likely needed for areas along and south
of Interstate 80.
Chances of thunderstorms will continue through Tuesday, with some
strong to severe storms possible at times. Damaging winds remain
the primary threat, along with torrential downpours that could
result in localized flash flooding. A Marginal Risk for severe
storms remains over most of the area Monday.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is possible this evening through tonight.
Reports of severe weather would be appreciated along with any
reports of rainfall over one inch.
$$
Hazardous Weather Outlook
National Weather Service Des Moines IA
240 PM CDT Sun Aug 17 2025
IAZ004>007-015>017-023>028-033>039-044>050-057>062-070>075-
081>086-092>097-181945-
Emmet-Kossuth-Winnebago-Worth-Palo Alto-Hancock-Cerro Gordo-
Pocahontas-Humboldt-Wright-Franklin-Butler-Bremer-Sac-Calhoun-
Webster-Hamilton-Hardin-Grundy-Black Hawk-Crawford-Carroll-Greene-
Boone-Story-Marshall-Tama-Audubon-Guthrie-Dallas-Polk-Jasper-
Poweshiek-Cass-Adair-Madison-Warren-Marion-Mahaska-Adams-Union-
Clarke-Lucas-Monroe-Wapello-Taylor-Ringgold-Decatur-Wayne-
Appanoose-Davis-
240 PM CDT Sun Aug 17 2025
This Hazardous Weather Outlook is for portions of central Iowa.
.DAY ONE...This afternoon and tonight
Thunderstorm chances this evening into the overnight hours,
beginning in northern Iowa then spreading south and east through
the night. A few strong storms are possible, with gusty winds
being the main concern.
.DAYS TWO THROUGH SEVEN...Monday through Saturday
Intermittent storm chances continue through Monday, some of which
may be strong with gusty winds and hail.
Heat continues on Monday with heat indices over 100 degrees
possible in southern Iowa.
.SPOTTER INFORMATION STATEMENT...
Spotter activation may be needed tonight into Monday.
$$
Hagenhoff
Hazardous Weather Outlook
National Weather Service Lincoln IL
231 PM CDT Sun Aug 17 2025
ILZ027>031-036>038-040>057-061>063-066>068-071>073-181945-
Knox-Stark-Peoria-Marshall-Woodford-Fulton-Tazewell-McLean-Schuyler-
Mason-Logan-De Witt-Piatt-Champaign-Vermilion-Cass-Menard-Scott-
Morgan-Sangamon-Christian-Macon-Moultrie-Douglas-Coles-Edgar-Shelby-
Cumberland-Clark-Effingham-Jasper-Crawford-Clay-Richland-Lawrence-
231 PM CDT Sun Aug 17 2025
This Hazardous Weather Outlook is for central Illinois, east
central Illinois, southeast Illinois and west central Illinois.
.DAY ONE...Tonight.
Heat indices will be slow to fall this evening into tonight, dropping
only to around 75 by sunrise Monday morning.
There is a 20% chance of a storm this evening. Any storm that
develops will be capable of frequent lightning, heavy rain, and
locally strong winds.
.DAYS TWO THROUGH SEVEN...Monday through Saturday.
Once again, the combination of heat and humidity will result in heat
indices between 100 and 105 degrees Monday afternoon and Tuesday
afternoon.
There is a 20% chance of thunderstorms Monday and a 30% chance of
thunderstorms Tuesday. Any storm that develops will be capable of
frequent lightning, heavy rain, and locally strong winds.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is not anticipated tonight.
$$
Bumgardner
