Alert archive / Illinois / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 16, NWS Lincoln, IL
NWS Lincoln, IL issued this severe thunderstorm warning at Mar 15, 2012, 8:11 PM CDT for Logan County, Menard County, Sangamon County, Illinois. It was in force for 32 min. 7 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Mar 15, 2012, 8:11 PM CDT (01:11 UTC)
- Expired
- Mar 15, 2012, 8:43 PM CDT
- In force
- 32 min
- Issued by
- NWS Lincoln, IL
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 50.0 mph
Counties Logan County, IL, Menard County, IL, Sangamon County, IL
The radar
The Lincoln radar (KILX), 26 km from the middle of the area, began a volume at 01:11 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 was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Mar 15, 8:14 PM CDT | HAIL 1 | Cantrall, IL | |
| Mar 15, 8:15 PM CDT | HAIL 1 | 2 W Sherman, IL | |
| Mar 15, 8:20 PM CDT | HAIL 1 | Sherman, IL | |
| Mar 15, 8:22 PM CDT | HAIL 0.75 | Sherman, IL | |
| Mar 15, 8:23 PM CDT | HAIL 0.5 | Sherman, IL | |
| Mar 15, 8:24 PM CDT | HAIL 0.75 | Sherman, IL | |
| Mar 15, 8:27 PM CDT | HAIL 0.88 | Sherman, IL |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Lincoln, IL (KILX), launched 00:00Z, 1.2 hours before the alert went out and 79 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
- 1967 J/kg
- Mixed-layer CIN
- -36 J/kg
- Mixed-layer LCL
- 1303 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 88 m²/s²
- 0-3 km storm-relative helicity
- 123 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.1
The text
As transmitted, in the capitals the NWS used until 2016.
584 WUUS53 KILX 160111 SVRILX ILC107-129-167-160200- /O.NEW.KILX.SV.W.0016.120316T0111Z-120316T0200Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE LINCOLN IL 811 PM CDT THU MAR 15 2012 THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHWESTERN LOGAN COUNTY IN CENTRAL ILLINOIS... EAST CENTRAL MENARD COUNTY IN CENTRAL ILLINOIS... NORTH CENTRAL SANGAMON COUNTY IN CENTRAL ILLINOIS... * UNTIL 900 PM CDT. * AT 807 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL. THIS STORM WAS LOCATED NEAR ATHENS...OR 11 MILES NORTH OF SPRINGFIELD... AND MOVING EAST AT 25 MPH. AT 806 PM CDT...QUARTER-SIZE HAIL WAS REPORTED 2 MILES SOUTHWEST OF ATHENS WITH THIS STORM. * LOCATIONS IMPACTED INCLUDE... SHERMAN...WILLIAMSVILLE...RIVERTON...ELKHART...CORNLAND...FANCY PRAIRIE...SPAULDING...DAWSON AND BUFFALO. THIS INCLUDES INTERSTATE 55 BETWEEN MILE MARKERS 101 AND 115. 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 4003 8936 3985 8935 3984 8969 4002 8970 TIME...MOT...LOC 0110Z 264DEG 23KT 3994 8967 WIND...HAIL <50MPH 1.00IN $$ CHURCHILL
2 follow-up statements
909 WWUS53 KILX 160135 SVSILX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE LINCOLN IL 835 PM CDT THU MAR 15 2012 ILC107-129-160145- /O.CAN.KILX.SV.W.0016.000000T0000Z-120316T0200Z/ LOGAN IL-MENARD IL- 835 PM CDT THU MAR 15 2012 ...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL MENARD AND SOUTHWESTERN LOGAN COUNTIES IS CANCELLED... THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED AREA. LAT...LON 3994 8948 3985 8943 3984 8969 3993 8970 TIME...MOT...LOC 0135Z 298DEG 18KT 3985 8955 $$ ILC167-160200- /O.CON.KILX.SV.W.0016.000000T0000Z-120316T0200Z/ SANGAMON IL- 835 PM CDT THU MAR 15 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTH CENTRAL SANGAMON COUNTY UNTIL 900 PM CDT... AT 830 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL. THIS STORM WAS LOCATED NEAR RIVERTON...OR 7 MILES NORTHEAST OF SPRINGFIELD...MOVING SOUTHEAST AT 20 MPH. LOCATIONS IMPACTED INCLUDE... DAWSON. 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 3994 8948 3985 8943 3984 8969 3993 8970 TIME...MOT...LOC 0135Z 298DEG 18KT 3985 8955 WIND...HAIL <50MPH 1.00IN $$
767 WWUS53 KILX 160143 SVSILX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE LINCOLN IL 843 PM CDT THU MAR 15 2012 ILC167-160153- /O.CAN.KILX.SV.W.0016.000000T0000Z-120316T0200Z/ SANGAMON IL- 843 PM CDT THU MAR 15 2012 ...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL SANGAMON COUNTY IS CANCELLED... THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY. LAT...LON 3994 8948 3985 8943 3984 8969 3993 8970 TIME...MOT...LOC 0143Z 298DEG 18KT 3983 8950 $$ CHURCHILL
The office that day
Everything else NWS Lincoln, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 15, 7:54 PM CDT | Severe Thunderstorm Warning | ILX | Menard, Sangamon | 36 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.