693
WWUS73 KLOT 200222
NPWLOT
URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
922 PM CDT THU JUN 19 2025
ILZ103>105-201230-
/O.CON.KLOT.XH.A.0001.250621T1500Z-250624T0500Z/
NORTHERN COOK-CENTRAL COOK-SOUTHERN COOK-
INCLUDING THE CITIES OF LA GRANGE, EVANSTON, ORLAND PARK, PARK
FOREST, LEMONT, OAK PARK, OAK FOREST, NORTHBROOK, SCHAUMBURG,
PALATINE, CHICAGO, OAK LAWN, CICERO, DES PLAINES, AND CALUMET
CITY
922 PM CDT THU JUN 19 2025
...EXTREME HEAT WATCH REMAINS IN EFFECT FROM SATURDAY MORNING
THROUGH MONDAY EVENING...
* WHAT...DANGEROUSLY HOT AND HUMID CONDITIONS WITH HIGH TEMPERATURES
EACH DAY WELL INTO THE 90S AND PEAK AFTERNOON HEAT INDEX VALUES OF
100 TO 105 DEGREES POSSIBLE.
* WHERE...CENTRAL COOK, NORTHERN COOK, AND SOUTHERN COOK COUNTIES.
* WHEN...FROM SATURDAY MORNING THROUGH MONDAY EVENING.
* IMPACTS...HEAT RELATED ILLNESSES INCREASE SIGNIFICANTLY DURING
EXTREME HEAT AND HIGH HUMIDITY EVENTS.
* ADDITIONAL DETAILS...HEAT INDICES WILL LIKELY REMAIN IN THE 90S
LATE INTO THE EVENING HOURS WITH OVERNIGHT LOWS POSSIBLY
STRUGGLING TO FALL MUCH BELOW 80 DEGREES.
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.
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