Alert archive / Illinois / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 264, NWS St. Louis, MO

June 10, 2011Fayette County, Marion County, Illinois

NWS St. Louis, MO issued this severe thunderstorm warning at Jun 10, 2011, 5:10 PM CDT for Fayette County, Marion County, Illinois. It was in force for 65 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
Jun 10, 2011, 5:10 PM CDT (22:10 UTC)
Expired
Jun 10, 2011, 6:15 PM CDT
In force
65 min
Issued by
NWS St. Louis, MO
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Fayette County, IL, Marion County, IL

The radar

The Evansville,IN radar (KVWX), 112 km from the middle of the area, began a volume at 22:10 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jun 10, 1:02 PM CDTSevere Thunderstorm WatchSPC7 hr
Jun 10, 4:57 PM CDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 10.2 hours before the alert went out and 156 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.

Skew-T log-pSkew-T log-p diagram, Lincoln, IL at 12:00Z on 2011-06-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 581 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lincoln, IL at 12:00Z on 2011-06-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 101 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
581 J/kg
Mixed-layer CIN
-228 J/kg
Mixed-layer LCL
670 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
101 m²/s²
0-3 km storm-relative helicity
130 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.8

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

366 
WUUS53 KLSX 102210
SVRLSX
ILC051-121-102315-
/O.NEW.KLSX.SV.W.0264.110610T2210Z-110610T2315Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
510 PM CDT FRI JUN 10 2011

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN FAYETTE COUNTY IN SOUTH CENTRAL ILLINOIS...
  MARION COUNTY IN SOUTH CENTRAL ILLINOIS...

* UNTIL 615 PM CDT

* AT 508 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
  SALEM...AND MOVING NORTHEAST AT 20 MPH.  A SECOND SEVERE STORM WAS
  PATOKA...ALSO MOVING NORTHEAST AT 20 MPH.

* LOCATIONS IMPACTED INCLUDE...
  KINMUNDY...OMEGA...STEPHEN FORBES STATE PARK...FARINA...ALMA...
  BRUBAKER...IUKA...ST. PAUL...ST. PETER...LOOGOOTEE AND LA CLEDE.

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 3851 8894 3877 8917 3895 8881 3891 8880
      3892 8870 3891 8869 3859 8869
TIME...MOT...LOC 2210Z 240DEG 18KT 3863 8890
WIND...HAIL 60MPH 1.00IN

$$

TRUETT
2 follow-up statements
761 
WWUS53 KLSX 102243
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
543 PM CDT FRI JUN 10 2011

ILC051-121-102315-
/O.CON.KLSX.SV.W.0264.000000T0000Z-110610T2315Z/
MARION IL-FAYETTE IL-
543 PM CDT FRI JUN 10 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHEASTERN
FAYETTE AND NORTHERN MARION COUNTIES UNTIL 615 PM CDT...

AT 540 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
PATOKA...OR 7 MILES NORTHWEST OF SALEM...MOVING EAST AT 20 MPH.

LOCATIONS IMPACTED INCLUDE...
  KINMUNDY...OMEGA...FARINA...STEPHEN FORBES STATE PARK...ALMA...
  BRUBAKER...ST. PAUL...ST. PETER...LA CLEDE AND LOOGOOTEE.

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 3871 8869 3859 8901 3877 8917 3895 8881
      3891 8880 3892 8870 3891 8869
TIME...MOT...LOC 2243Z 249DEG 18KT 3873 8900
WIND...HAIL 60MPH 1.00IN

$$

TRUETT
483 
WWUS53 KLSX 102317
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
617 PM CDT FRI JUN 10 2011

ILC051-121-102327-
/O.EXP.KLSX.SV.W.0264.000000T0000Z-110610T2315Z/
MARION IL-FAYETTE IL-
617 PM CDT FRI JUN 10 2011

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN FAYETTE AND
NORTHERN MARION 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.

ADDITIONAL STRONG THUNDERSTORMS ARE STILL POSSIBLE...AND A SEVERE 
THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 8 PM.

LAT...LON 3871 8869 3859 8901 3877 8917 3895 8881
      3891 8880 3892 8870 3891 8869
TIME...MOT...LOC 2243Z 249DEG 18KT 3873 8900

$$

TRUETT

The office that day

Everything else NWS St. Louis, MO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 10, 12:05 AM CDTFlash Flood WarningLSXAdams6 hr
Jun 10, 11:38 AM CDTRiver Flood WarningLSXAdams13 days
Jun 10, 11:38 AM CDTRiver Flood WarningLSXAdams14 days
Jun 10, 11:38 AM CDTRiver Flood WarningLSXPike14 days
Jun 10, 3:38 PM CDTAreal Flood AdvisoryLSXMarion4 hr
Jun 10, 5:30 PM CDTSevere Thunderstorm WarningLSXCalhoun, Greene, Pike45 min
Jun 10, 5:42 PM CDTSevere Thunderstorm WarningLSXAdams, Brown, Pike48 min
Jun 10, 5:49 PM CDTTornado WarningLSXAdams41 min
Jun 10, 6:16 PM CDTFlash Flood WarningLSXMarion10 hr
Jun 10, 6:27 PM CDTSevere Thunderstorm WarningLSXAdams, Brown, Pike48 min
Jun 10, 6:30 PM CDTTornado WarningLSXAdams30 min
Jun 10, 6:43 PM CDTSevere Thunderstorm WarningLSXBond, Clinton, Fayette, Marion62 min

Nearby

Severe Thunderstorm Warnings in Illinois, 2011Every severe thunderstorm warning in 2011

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.