Alert archive / Illinois / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 89, NWS Lincoln, IL
NWS Lincoln, IL issued this severe thunderstorm warning at Aug 8, 2012, 5:22 PM CDT for Clay County, Richland County, Illinois. It was in force for 38 min. 2 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
- Aug 8, 2012, 5:22 PM CDT (22:22 UTC)
- Expired
- Aug 8, 2012, 6:00 PM CDT
- In force
- 38 min
- Issued by
- NWS Lincoln, IL
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Clay County, IL, Richland County, IL
The radar
The Evansville,IN radar (KVWX), 74 km from the middle of the area, began a volume at 22:23 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 |
|---|---|---|---|
| Aug 8, 5:33 PM CDT | TSTM WND DMG | Clay City, IL | SEVERAL TREE LIMBS AND POWER LINES DOWN. |
| Aug 8, 5:39 PM CDT | TSTM WND GST 50 | Clay City, 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 12:00Z, 10.4 hours before the alert went out and 160 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
- 810 J/kg
- Mixed-layer CIN
- -169 J/kg
- Mixed-layer LCL
- 1967 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 42 m²/s²
- 0-3 km storm-relative helicity
- 113 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
103 WUUS53 KILX 082222 SVRILX ILC025-159-082300- /O.NEW.KILX.SV.W.0089.120808T2222Z-120808T2300Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE LINCOLN IL 522 PM CDT WED AUG 8 2012 THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... EAST CENTRAL CLAY COUNTY IN SOUTH CENTRAL ILLINOIS... WEST CENTRAL RICHLAND COUNTY IN SOUTHEAST ILLINOIS... * UNTIL 600 PM CDT. * AT 516 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED TWO SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. ONE STORM WAS LOCATED NEAR FLORA...AND THE OTHER WAS 4 MILES NORTHEAST OF CLAY CITY. BOTH STORMS WERE MOVING NORTHEAST AT 10 MPH. PENNY SIZE HAIL MAY ALSO ACCOMPANY THESE DAMAGING WINDS. AT 520 PM...WIND GUSTS OF 55 TO 60 MPH WERE REPORTED IN FLORA BY LOCAL MEDIA. * LOCATIONS IMPACTED INCLUDE... CLAY CITY...SAILOR SPRINGS AND NOBLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS. && LAT...LON 3880 8825 3867 8818 3864 8846 3871 8851 TIME...MOT...LOC 2221Z 246DEG 8KT 3869 8844 WIND...HAIL 60MPH 0.75IN $$ GEELHART
2 follow-up statements
744 WWUS53 KILX 082241 SVSILX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE LINCOLN IL 541 PM CDT WED AUG 8 2012 ILC025-159-082300- /O.CON.KILX.SV.W.0089.000000T0000Z-120808T2300Z/ RICHLAND IL-CLAY IL- 541 PM CDT WED AUG 8 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR EAST CENTRAL CLAY AND WEST CENTRAL RICHLAND COUNTIES UNTIL 600 PM CDT... AT 540 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A SEVERE THUNDERSTORM PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR CLAY CITY...MOVING NORTHEAST AT 10 MPH. PENNY SIZE HAIL MAY ALSO ACCOMPANY THESE DAMAGING WINDS. CLAY COUNTY EMERGENCY SERVICES REPORTED DAMAGE IN CLAY CITY FROM THIS STORM. ALSO...A TREE WAS KNOCKED DOWN IN FLORA FROM THE EARLIER STORM. LOCATIONS IMPACTED INCLUDE... CLAY CITY AND NOBLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS. && LAT...LON 3872 8847 3880 8825 3867 8818 3864 8844 TIME...MOT...LOC 2240Z 246DEG 8KT 3871 8839 WIND...HAIL 60MPH 0.75IN $$ GEELHART
181 WWUS53 KILX 082301 SVSILX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE LINCOLN IL 601 PM CDT WED AUG 8 2012 ILC025-159-082311- /O.EXP.KILX.SV.W.0089.000000T0000Z-120808T2300Z/ RICHLAND IL-CLAY IL- 601 PM CDT WED AUG 8 2012 ...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL CLAY AND WEST CENTRAL RICHLAND COUNTIES HAS EXPIRED... THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY. HOWEVER HEAVY RAIN WILL CONTINUE WITH THIS STORM...ESPECIALLY BETWEEN CLAY CITY AND OLNEY NOBLE AIRPORT. RADAR HAS ESTIMATED 2 TO 3 INCHES OF RAIN HAD FALLEN SINCE 430 PM...AND AREAS OF MINOR FLOODING ARE LIKELY. LAT...LON 3872 8847 3880 8825 3867 8818 3864 8844 TIME...MOT...LOC 2241Z 246DEG 8KT 3871 8839 $$ GEELHART
The office that day
Everything else NWS Lincoln, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 8, 4:35 PM CDT | Special Weather Statement | ILX | Douglas | 40 min |
| Aug 8, 5:32 PM CDT | Areal Flood Advisory | ILX | Clay, Richland | 3 hr |
| Aug 8, 6:14 PM CDT | Flash Flood Warning | ILX | Clay, Richland | 3 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.