Alert archive / Illinois / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 156, NWS Chicago, IL
NWS Chicago, IL issued this severe thunderstorm warning at Aug 13, 2011, 12:55 PM CDT for Cook County, Lake County, McHenry County, Illinois. It was in force for 50 min. 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 13, 2011, 12:55 PM CDT (17:55 UTC)
- Expired
- Aug 13, 2011, 1:45 PM CDT
- In force
- 50 min
- Issued by
- NWS Chicago, IL
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Cook County, IL, Lake County, IL, McHenry County, IL
The radar
The Chicago radar (KLOT), 66 km from the middle of the area, began a volume at 17:54 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.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Aug 13, 12:12 PM CDT | Severe Thunderstorm Watch | SPC | 9 hr |
What forecasters said that day
The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at Aug 13, 12:18 PM CDT, 37 minutes earlier.
Area forecast discussion, Aug 13, 12:18 PM CDT, 37 minutes before
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</html>Hazardous weather outlook, Aug 13, 11:50 AM CDT, 1 hour 5 minutes before
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Local storm report, Aug 13, 11:54 AM CDT, 1 hour 1 minute before
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</html>Local storm report, Aug 13, 12:11 PM CDT, 44 minutes before
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</html>Special weather statement, Aug 13, 12:19 PM CDT, 36 minutes before
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</html>Local storm report, Aug 13, 12:54 PM CDT, 1 minute before
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</html>Local storm report, Aug 13, 12:55 PM CDT, 0 minutes before
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If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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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 12, 7:03 PM CDT | Severe Thunderstorm Warning | LOT | DeKalb, Ogle | 57 min |
| Aug 13, 3:31 AM CDT | Small Craft Advisory | LOT | 54 hr | |
| Aug 13, 10:46 AM CDT | Severe Thunderstorm Warning | LOT | Winnebago | 59 min |
| Aug 13, 11:29 AM CDT | Severe Thunderstorm Warning | LOT | Boone, DeKalb, McHenry, Ogle, Winnebago | 46 min |
| Aug 13, 12:00 PM CDT | Special Marine Warning | LOT | 3 hr | |
| Aug 13, 12:19 PM CDT | Special Weather Statement | LOT | DeKalb, Kane, McHenry | 56 min |
| Aug 13, 1:52 PM CDT | Special Weather Statement | LOT | Cook | 38 min |
| Aug 13, 1:54 PM CDT | Special Weather Statement | LOT | Ogle | 36 min |
| Aug 13, 2:02 PM CDT | Special Marine Warning | LOT | 88 min | |
| Aug 13, 2:12 PM CDT | Severe Thunderstorm Warning | LOT | Cook, DuPage | 63 min |
| Aug 13, 2:23 PM CDT | Severe Thunderstorm Warning | LOT | Lee, Ogle | 67 min |
| Aug 13, 2:31 PM CDT | Severe Thunderstorm Warning | LOT | LaSalle | 34 min |
| Aug 13, 2:48 PM CDT | Severe Thunderstorm Warning | LOT | DeKalb, DuPage, Kane, Kendall, Will | 57 min |
| Aug 13, 2:54 PM CDT | Severe Thunderstorm Warning | LOT | Grundy, Will | 41 min |
| Aug 13, 3:27 PM CDT | Special Weather Statement | LOT | Grundy | 48 min |
| Aug 13, 3:32 PM CDT | Special Weather Statement | LOT | Livingston | 28 min |
| Aug 13, 3:35 PM CDT | Special Weather Statement | LOT | Livingston | 25 min |
| Aug 13, 3:44 PM CDT | Special Weather Statement | LOT | Kane, Kendall | 31 min |
| Aug 13, 4:01 PM CDT | Special Weather Statement | LOT | Livingston | 44 min |
| Aug 13, 4:14 PM CDT | Special Weather Statement | LOT | DuPage, Kane, Kendall | 46 min |
| Aug 13, 4:19 PM CDT | Special Weather Statement | LOT | Iroquois | 41 min |
| Aug 13, 4:24 PM CDT | Severe Thunderstorm Warning | LOT | Iroquois | 66 min |
| Aug 13, 4:44 PM CDT | Rip Current Statement | LOT | Lake | 41 hr |
| Aug 13, 5:17 PM CDT | Areal Flood Advisory | LOT | Boone, DeKalb, McHenry, Ogle, Winnebago | 2 hr |
| Aug 13, 3:49 PM CDT | Special Weather Statement | LOT | Lake | 56 min |
| Aug 13, 4:30 PM CDT | Special Weather Statement | LOT | Lake, Porter | 45 min |
| Aug 13, 4:47 PM CDT | Severe Thunderstorm Warning | LOT | Jasper, Lake, Porter | 29 min |
| Aug 13, 5:25 PM CDT | Severe Thunderstorm Warning | LOT | Benton | 50 min |
Nearby
Severe Thunderstorm Warnings in Illinois, 2011Every severe thunderstorm warning in 2011
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.