Hazardous Weather Outlook
Hazardous Weather Outlook
National Weather Service Kansas City/Pleasant Hill MO
0505 AM CDT Tue Jul 21 2026
KSZ025-057-060-102>105-MOZ001>008-011>017-020>025-028>033-037>040-
043>046-053-054-221005-
Atchison KS-Miami-Linn KS-Doniphan-Leavenworth-Wyandotte-Johnson KS-
Atchison MO-Nodaway-Worth-Gentry-Harrison-Mercer-Putnam-Schuyler-
Holt-Andrew-De Kalb-Daviess-Grundy-Sullivan-Adair-Buchanan-Clinton-
Caldwell-Livingston-Linn MO-Macon-Platte-Clay-Ray-Carroll-Chariton-
Randolph-Jackson-Lafayette-Saline-Howard-Cass-Johnson MO-Pettis-
Cooper-Bates-Henry-
0505 AM CDT Tue Jul 21 2026
This hazardous weather outlook is for northwest...north central and
west central Missouri...as well as extreme eastern Kansas.
.DAY ONE...Through tonight.
There is a low probability of widespread hazardous weather.
.DAYS TWO THROUGH SEVEN...Wednesday through Monday.
Please go to https://weather.gov/media/eax/DssPacket.pdf for more information on
potential weather hazards.
.KEY MESSAGES...
* Hazardous heat continues today with forecast heat indices between
105-110F. A Heat Advisory is in effect until 9 PM tonight
areawide, continuing through 7 PM Tuesday for portions of east-
central Kansas and west-central/central Missouri.
* There is a 30-40% chance of showers and storms in north-
central and northeast Missouri late tonight and early Tuesday
morning. The strongest storms could produce damaging wind
gusts and small hail.
* Cooler temperatures for the remainder of the work week with
increasing chances for showers and storms mid/late week. Heavy
rainfall looks to be the main hazard at this time.
$$
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
233 AM CDT Tue Jul 21 2026
ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-
010-011-019-220745-
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
233 AM CDT Tue Jul 21 2026 /333 AM EDT Tue Jul 21 2026/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Today and Tonight.
Weather hazards expected...
Limited Thunderstorm Risk ending by daybreak.
High Swim Risk Lake Michigan Beaches this evening.
DISCUSSION...
A thunderstorm may develop prior to daybreak and produce damaging
hail. Most areas will be dry.
Waves will build on Lake Michigan this evening leading to a High
Swim Risk.
.DAYS TWO THROUGH SEVEN...Wednesday through Monday.
Wednesday...
High Swim Risk Lake Michigan Beaches.
Saturday and Sunday...
Limited Thunderstorm Risk.
DISCUSSION...
A High Swim Risk will continue through early Thursday morning.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
GENERAL STORM MOTION OF THE DAY:
Moving toward the east at around 30 mph.
$$
Hazardous Weather Outlook
National Weather Service Milwaukee/Sullivan WI
116 AM CDT Tue Jul 21 2026
WIZ046-047-051-052-056>060-062>072-220630-
Marquette-Green Lake-Fond du Lac-Sheboygan-Sauk-Columbia-Dodge-
Washington-Ozaukee-Iowa-Dane-Jefferson-Waukesha-Milwaukee-
Lafayette-Green-Rock-Walworth-Racine-Kenosha-
116 AM CDT Tue Jul 21 2026
This Hazardous Weather Outlook is for portions of east central
Wisconsin, south central Wisconsin and southeast Wisconsin.
.DAY ONE...Today and Tonight
There is a High Swim Risk for Lake Michigan beaches in Sheboygan
and Ozaukee Counties through early this morning. Life threatening
waves and currents are expected. Stay out of the water, and away
from dangerous areas like piers, breakwalls and river outlets.
.DAYS TWO THROUGH SEVEN...Wednesday through Monday
No hazardous weather is expected at this time.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be needed.
$$
