Alert archive / Illinois / Severe Thunderstorm Warnings in 2023
Severe Thunderstorm Warning 183, NWS Lincoln, IL
NWS Lincoln, IL issued this severe thunderstorm warning at Jul 14, 2023, 6:36 PM CDT for Knox County, Illinois. It was in force for 28 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
- Jul 14, 2023, 6:36 PM CDT (23:36 UTC)
- Expired
- Jul 14, 2023, 7:04 PM CDT
- In force
- 28 min
- Issued by
- NWS Lincoln, IL
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County Knox County, IL
The radar
The Quad Cities radar (KDVN), 82 km from the middle of the area, began a volume at 23:40 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 |
|---|---|---|---|
| Jul 14, 3:52 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 11.6 hours before the alert went out and 162 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 354 J/kg
- Mixed-layer CIN
- -123 J/kg
- Mixed-layer LCL
- 1297 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 99 m²/s²
- 0-3 km storm-relative helicity
- 128 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.9
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 Lincoln, IL wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 14, 6:11 PM CDT, 25 minutes earlier.
Area forecast discussion, Jul 14, 6:11 PM CDT, 25 minutes before
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</html>Hazardous weather outlook, Jul 14, 4:01 PM CDT, 2 hours 35 minutes before
Hazardous Weather Outlook National Weather Service Lincoln IL 401 PM CDT Fri Jul 14 2023 ILZ038-043>046-053>057-061>063-066>068-071>073-152115- McLean-De Witt-Piatt-Champaign-Vermilion-Macon-Moultrie-Douglas- Coles-Edgar-Shelby-Cumberland-Clark-Effingham-Jasper-Crawford-Clay- Richland-Lawrence- 401 PM CDT Fri Jul 14 2023 This Hazardous Weather Outlook is for central Illinois, east central Illinois and southeast Illinois. .DAY ONE...Tonight. Scattered showers and thunderstorms are expected this evening. There is a marginal risk that some of the storms may be severe with isolated gusts up to 60 mph and isolated large hail up to 1 inch. Lightning and locally heavy rainfall will also be a concern. .DAYS TWO THROUGH SEVEN...Saturday through Thursday. Scattered thunderstorms will continue to be possible Sunday through Thursday as an unsettled pattern remains over the area. Strong storms are possible Sunday, but the primary threat each day will be lightning and locally heavy rainfall. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated tonight. ILZ027>031-036-037-040>042-047>052-152115- Knox-Stark-Peoria-Marshall-Woodford-Fulton-Tazewell-Schuyler-Mason- Logan-Cass-Menard-Scott-Morgan-Sangamon-Christian- 401 PM CDT Fri Jul 14 2023 This Hazardous Weather Outlook is for central Illinois and west central Illinois. .DAY ONE...Tonight. A severe thunderstorm watch is now in effect until 10pm. A few storms will pose a damaging wind and large hail risk. .DAYS TWO THROUGH SEVEN...Saturday through Thursday. Scattered thunderstorms will continue to be possible Sunday through Thursday as an unsettled pattern remains over the area. Strong storms are possible Sunday, but the primary threat each day will be lightning and locally heavy rainfall. .SPOTTER INFORMATION STATEMENT... Spotter activation will likely be needed this evening between 5pm and sunset. Expected storm motion is toward the east around 25 mph. MJA
In the hours before
Local storm report, Jul 14, 5:27 PM CDT, 1 hour 9 minutes before
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</html>Special weather statement, Jul 14, 6:21 PM CDT, 15 minutes before
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</html>The office that day
Everything else NWS Lincoln, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 14, 4:43 PM CDT | Severe Thunderstorm Warning | ILX | Cass, Schuyler | 47 min |
| Jul 14, 5:15 PM CDT | Severe Thunderstorm Warning | ILX | Cass, Fulton, Mason, Schuyler | 26 min |
| Jul 14, 6:21 PM CDT | Special Weather Statement | ILX | Knox | 24 min |
| Jul 14, 6:47 PM CDT | Special Weather Statement | ILX | Knox | 28 min |
Nearby
Severe Thunderstorm Warnings in Illinois, 2023Every severe thunderstorm warning in 2023
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.