Alert archive / Illinois / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 129, NWS Lincoln, IL
NWS Lincoln, IL issued this severe thunderstorm warning at Sep 21, 2012, 7:09 PM CDT for Coles County, Illinois. It was in force for 36 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Sep 21, 2012, 7:09 PM CDT (00:09 UTC)
- Expired
- Sep 21, 2012, 7:45 PM CDT
- In force
- 36 min
- Issued by
- NWS Lincoln, IL
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County Coles County, IL
The radar
The Lincoln radar (KILX), 123 km from the middle of the area, began a volume at 00:10 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 nearest sounding before it
Lincoln, IL (KILX), launched 00:00Z, 0.2 hours before the alert went out and 85 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
- 11 J/kg
- Mixed-layer CIN
- -153 J/kg
- Mixed-layer LCL
- 1083 m above ground
- 0-6 km bulk shear
- 70 kt
- 0-1 km storm-relative helicity
- 62 m²/s²
- 0-3 km storm-relative helicity
- 110 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
701 WUUS53 KILX 220009 SVRILX ILC029-220045- /O.NEW.KILX.SV.W.0129.120922T0009Z-120922T0045Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE LINCOLN IL 709 PM CDT FRI SEP 21 2012 THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHERN COLES COUNTY IN EAST CENTRAL ILLINOIS... * UNTIL 745 PM CDT. * AT 706 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR MATTOON...AND MOVING EAST AT 35 MPH. * LOCATIONS IMPACTED INCLUDE... CHARLESTON...LERNA...COLES COUNTY AIRPORT...FOX RIDGE STATE PARK AND HUTTON. PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS STORM HAS EXHIBITED SOME WEAK ROTATION. TORNADOES CAN DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH ONE IS NOT IMMEDIATELY LIKELY...IF A TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM. && LAT...LON 3939 8840 3951 8838 3951 8802 3938 8802 TIME...MOT...LOC 0009Z 273DEG 32KT 3944 8831 WIND...HAIL 60MPH 1.00IN $$ SMITH
2 follow-up statements
845 WWUS53 KILX 220020 SVSILX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE LINCOLN IL 720 PM CDT FRI SEP 21 2012 ILC029-220045- /O.CON.KILX.SV.W.0129.000000T0000Z-120922T0045Z/ COLES IL- 720 PM CDT FRI SEP 21 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTH CENTRAL COLES COUNTY UNTIL 745 PM CDT... AT 719 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR CHARLESTON...MOVING EAST AT 35 MPH. LOCATIONS IMPACTED INCLUDE... FOX RIDGE STATE PARK AND HUTTON. PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS STORM HAS EXHIBITED SOME WEAK ROTATION. TORNADOES CAN DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH ONE IS NOT IMMEDIATELY LIKELY...IF A TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY INSIDE A STURDY STRUCTURE... SUCH AS A BASEMENT OR SMALL INTERIOR ROOM. && LAT...LON 3939 8825 3949 8826 3951 8802 3938 8802 TIME...MOT...LOC 0020Z 273DEG 32KT 3943 8818 WIND...HAIL 60MPH 1.00IN $$ SMITH
621 WWUS53 KILX 220043 SVSILX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE LINCOLN IL 743 PM CDT FRI SEP 21 2012 ILC029-220053- /O.EXP.KILX.SV.W.0129.000000T0000Z-120922T0045Z/ COLES IL- 743 PM CDT FRI SEP 21 2012 ...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL COLES COUNTY WILL EXPIRE AT 745 PM CDT... THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED AREA. HOWEVER SMALL HAIL AND GUSTY WINDS ARE STILL POSSIBLE WITH ADDITIONAL THUNDERSTORMS MOVING ACROSS SOUTHERN COLES COUNTY. LAT...LON 3939 8825 3949 8826 3951 8802 3938 8802 TIME...MOT...LOC 0043Z 273DEG 32KT 3942 8792 $$ SMITH
The office that day
Everything else NWS Lincoln, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 21, 7:04 PM CDT | Special Weather Statement | ILX | Coles | 41 min |
| Sep 21, 7:47 PM CDT | Special Weather Statement | ILX | Clark | 28 min |
| Sep 21, 7:49 PM CDT | Severe Thunderstorm Warning | ILX | Clark | 26 min |
| Sep 21, 9:20 PM CDT | Special Weather Statement | ILX | Lawrence | 55 min |
| Sep 22, 3:03 AM CDT | Freeze Watch | ILX | Fulton, Knox, Stark | 12 hr |
| Sep 22, 3:22 PM CDT | Frost Advisory | ILX | Cass, Champaign, DeWitt, Fulton, Knox, Logan and 15 more | 17 hr |
Nearby
Severe Thunderstorm Warnings in Illinois, 2012Every severe thunderstorm warning in 2012
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.