Alert archive / Illinois / Flash Flood Warnings in 2022
Flash Flood Warning 14, NWS Chicago, IL
NWS Chicago, IL issued this flash flood warning at Aug 7, 2022, 11:54 AM CDT for Cook County, Will County, Illinois. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Aug 7, 2022, 11:54 AM CDT (16:54 UTC)
- Expired
- Aug 7, 2022, 3:00 PM CDT
- In force
- 3 hr
- Issued by
- NWS Chicago, IL
- Area
- Storm-based polygon
- Flood severity
- None
Counties Cook County, IL, Will County, IL
The radar
The Chicago radar (KLOT), 24 km from the middle of the area, began a volume at 16:55 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What forecasters said that day
The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Chicago, IL wrote its last area forecast discussion before this flash flood warning went out at Aug 7, 6:38 AM CDT, 5 hours 16 minutes earlier.
Area forecast discussion, Aug 7, 6:38 AM CDT, 5 hours 16 minutes before
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</html>Hazardous weather outlook, Aug 7, 11:40 AM CDT, 14 minutes before
Hazardous Weather Outlook National Weather Service Chicago/Romeoville IL 1140 AM CDT Sun Aug 7 2022 ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002- 010-011-019-081645- 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- 1140 AM CDT Sun Aug 7 2022 /1240 PM EDT Sun Aug 7 2022/ 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... Elevated Thunderstorm Risk. Significant Flooding Risk. DISCUSSION... Widespread rain and embedded thunderstorms will ease in coverage early this afternoon. Scattered showers and thunderstorms are expected the remainder of the afternoon into early evening, before potentially an increase in coverage again for the rest of tonight. Thunderstorms will be capable of producing torrential rainfall, which could result in flash flooding. .DAYS TWO THROUGH SEVEN...Monday through Saturday. Monday... Elevated Flooding Risk in the morning. Limited Thunderstorm Risk. Tuesday... High Swim Risk. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be necessary through tonight. GENERAL STORM MOTION OF THE DAY: Moving toward east or southeast at 15 to 25 mph. LMZ740>745-081645- Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 1140 AM CDT Sun Aug 7 2022 This Hazardous Weather Outlook is for portions of the Illinois nearshore waters of Lake Michigan and the Indiana nearshore waters of Lake Michigan. .DAY ONE...This Afternoon and Tonight. Weather hazards expected... Limited Thunderstorm Risk. .DAYS TWO THROUGH SEVEN...Monday through Saturday. Monday... Limited Thunderstorm Risk. Monday night and Tuesday... Hazardous conditions for small craft are likely. MTF Visit us at www.weather.gov/chicago Follow us on Facebook, Twitter, and Youtube at: www.facebook.com/nwschicago www.twitter.com/nwschicago www.youtube.com/nwschicago
In the hours before
Local storm report, Aug 7, 8:53 AM CDT, 3 hours 1 minute before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
853 AM CDT SUN AUG 7 2022
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0845 AM HEAVY RAIN 3 NW MACHESNEY PARK 42.38N 89.09W
08/07/2022 M3.40 INCH WINNEBAGO IL MESONET
STORM TOTAL PRECIP SINCE 12AM AND STILL
RAINING. VIA PERSONAL WEATHER STATION.
&&
PETRLocal storm report, Aug 7, 9:13 AM CDT, 2 hours 41 minutes before
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</html>Local storm report, Aug 7, 9:19 AM CDT, 2 hours 35 minutes before
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</html>The office that day
Everything else NWS Chicago, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 7, 2:25 AM CDT | Special Marine Warning | LOT | 2 hr | |
| Aug 7, 2:30 AM CDT | Special Weather Statement | LOT | McHenry | 45 min |
| Aug 7, 3:51 AM CDT | Areal Flood Advisory | LOT | Ogle, Winnebago | 3 hr |
| Aug 7, 5:02 AM CDT | Flood Watch | LOT | Boone, Cook, DeKalb, DuPage, Kane, Lake and 4 more | 29 hr |
| Aug 7, 6:33 AM CDT | Areal Flood Advisory | LOT | Boone, Lee, Ogle, Winnebago | 4 hr |
| Aug 7, 9:25 AM CDT | Areal Flood Advisory | LOT | DeKalb, LaSalle | 95 min |
| Aug 7, 10:59 AM CDT | Areal Flood Advisory | LOT | DeKalb, Grundy, Kendall, LaSalle, Lee, Ogle | 3 hr |
| Aug 7, 11:23 AM CDT | Areal Flood Advisory | LOT | Cook, Will | 2 hr |
| Aug 7, 12:32 PM CDT | Severe Thunderstorm Warning | LOT | Kankakee | 43 min |
| Aug 7, 3:37 PM CDT | Beach Hazards Statement | LOT | Cook, Lake | 48 hr |
| Aug 7, 3:41 PM CDT | Small Craft Advisory | LOT | 42 hr | |
| Aug 7, 12:53 PM CDT | Severe Thunderstorm Warning | LOT | Jasper, Porter | 51 min |
Nearby
Flash Flood Warnings in Illinois, 2022Every flash flood warning in 2022
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.