C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX
FLUS43 KLOT 301639
HWOLOT
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
1139 AM CDT Tue Jul 30 2024
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-
1139 AM CDT Tue Jul 30 2024 /1239 PM EDT Tue Jul 30 2024/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...This Afternoon and Tonight.
Weather hazards expected...
Limited Thunderstorm Risk...with an associated:
Level 2 of 5 Damaging Wind Risk...up to 70 mph.
Level 1 of 5 Tornado Risk.
Level 2 of 5 Large Hail Risk...up to quarter size.
Level 1 of 4 Flooding Risk.
DISCUSSION...
Scattered thunderstorms are possible this afternoon and early
evening, mainly southwest of a Sterling to Watseka line. Strong to
severe storms can't be ruled out, with the primary hazard being
damaging straight line winds. Heavy rain and localized flooding
will also be possible.
Additional thunderstorms are expected overnight into early
Wednesday morning, which could affect a larger portion of northern
Illinois and northwest Indiana. Damaging winds, large hail and
very heavy rain which may cause flash flooding are all possible
late tonight.
.DAYS TWO THROUGH SEVEN...Wednesday through Monday.
Wednesday...
Elevated Flooding Risk.
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Limited Excessive Heat Risk.
Thursday...
Limited Flooding Risk.
Limited Thunderstorm Risk...with an associated:
Level 2 of 5 Severe Thunderstorm Risk.
Limited Excessive Heat Risk.
Friday and Monday...
Limited Thunderstorm Risk.
DISCUSSION...
Periodic chances for thunderstorms will continue through Friday
afternoon. There appears to be the potential for another round
of thunderstorms capable of heavy rain and localized flooding
late Wednesday night into Thursday morning and then a possible
period of strong to severe thunderstorms Thursday afternoon.
Heat indices may locally exceed 100 degrees Wednesday and
Thursday afternoons, mainly south of Interstate 80.
.SPOTTER INFORMATION STATEMENT...
Spotters may be needed this afternoon.
GENERAL STORM MOTION OF THE DAY:
Moving toward the southeast at 30 to 40 mph.
https://wxn.io/bmpyw
