Alert archive / Illinois / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 13, NWS Lincoln, IL
NWS Lincoln, IL issued this severe thunderstorm warning at Mar 15, 2012, 5:55 PM CDT for Sangamon County, Illinois. It was in force for 35 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
- Mar 15, 2012, 5:55 PM CDT (22:55 UTC)
- Expired
- Mar 15, 2012, 6:30 PM CDT
- In force
- 35 min
- Issued by
- NWS Lincoln, IL
- Area
- Storm-based polygon
- Hail
- 2.5 in
- Wind
- 60.0 mph
County Sangamon County, IL
The radar
The Lincoln radar (KILX), 72 km from the middle of the area, began a volume at 22:55 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.
The nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 10.9 hours before the alert went out and 119 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
- 1579 J/kg
- Mixed-layer CIN
- -52 J/kg
- Mixed-layer LCL
- 821 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 142 m²/s²
- 0-3 km storm-relative helicity
- 117 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
045 WUUS53 KILX 152255 SVRILX ILC167-152345- /O.NEW.KILX.SV.W.0013.120315T2255Z-120315T2345Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE LINCOLN IL 555 PM CDT THU MAR 15 2012 THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHWESTERN SANGAMON COUNTY IN CENTRAL ILLINOIS... * UNTIL 645 PM CDT. * AT 550 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING LARGE DESTRUCTIVE HAIL UP TO TENNIS BALL SIZE...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR WAVERLY...OR 10 MILES NORTHWEST OF VIRDEN... AND MOVING EAST AT 15 MPH. * LOCATIONS IMPACTED INCLUDE... LOAMI...AUBURN...LOWDER AND THAYER. PRECAUTIONARY/PREPAREDNESS ACTIONS... SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE WATER COVERS THE ROAD. && LAT...LON 3969 8974 3953 8972 3952 8992 3966 8996 TIME...MOT...LOC 2255Z 252DEG 13KT 3959 8991 WIND...HAIL 60MPH 2.50IN $$ CHURCHILL
1 follow-up statement
924 WWUS53 KILX 152330 SVSILX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE LINCOLN IL 630 PM CDT THU MAR 15 2012 ILC167-152341- /O.CAN.KILX.SV.W.0013.000000T0000Z-120315T2345Z/ SANGAMON IL- 630 PM CDT THU MAR 15 2012 ...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN SANGAMON COUNTY IS CANCELLED... THE STORM WHICH PROMPTED THE WARNING HAS RAPIDLY WEAKENED AND MOVED OUT OF THE WARNED AREA. LAT...LON 3969 8974 3953 8972 3952 8992 3966 8996 TIME...MOT...LOC 2331Z 252DEG 13KT 3963 8975 $$ CHURCHILL
The office that day
Everything else NWS Lincoln, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 15, 5:38 PM CDT | Severe Thunderstorm Warning | ILX | Morgan | 52 min |
| Mar 15, 6:55 PM CDT | Severe Thunderstorm Warning | ILX | Scott | 39 min |
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.