Alert archive / Illinois / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 35, NWS Lincoln, IL

March 30, 2012Clark County, Cumberland County, Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at Mar 30, 2012, 4:15 PM CDT for Clark County, Cumberland 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
Mar 30, 2012, 4:15 PM CDT (21:15 UTC)
Expired
Mar 30, 2012, 4:51 PM CDT
In force
36 min
Issued by
NWS Lincoln, IL
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Clark County, IL, Cumberland County, IL

The radar

The Evansville,IN radar (KVWX), 110 km from the middle of the area, began a volume at 21:17 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
Mar 30, 2:51 PM CDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 9.3 hours before the alert went out and 123 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 2012-03-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 164 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 2012-03-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 206 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
164 J/kg
Mixed-layer CIN
-244 J/kg
Mixed-layer LCL
1045 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
206 m²/s²
0-3 km storm-relative helicity
230 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

495 
WUUS53 KILX 302115
SVRILX
ILC023-035-302215-
/O.NEW.KILX.SV.W.0035.120330T2115Z-120330T2215Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
415 PM CDT FRI MAR 30 2012

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN CLARK COUNTY IN EAST CENTRAL ILLINOIS...
  EASTERN CUMBERLAND COUNTY IN EAST CENTRAL ILLINOIS...

* UNTIL 515 PM CDT.

* AT 412 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 5 MILES
  WEST OF CASEY...OR 9 MILES EAST OF TOLEDO...AND MOVING EAST AT 15
  MPH.

* LOCATIONS IMPACTED INCLUDE...
  HAZEL DELL...CASEY...MARTINSVILLE...WEST UNION...ORANGE...YORK AND
  DARWIN.

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 3915 8764 3917 8766 3917 8775 3918 8775
      3917 8803 3924 8822 3938 8816 3938 8801
      3932 8760 3931 8761 3930 8759 3928 8761
      3922 8757
TIME...MOT...LOC 2115Z 287DEG 14KT 3929 8807
WIND...HAIL 60MPH 1.00IN

$$

BAK
1 follow-up statement
060 
WWUS53 KILX 302151
SVSILX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
451 PM CDT FRI MAR 30 2012

ILC023-035-302201-
/O.CAN.KILX.SV.W.0035.000000T0000Z-120330T2215Z/
CLARK IL-CUMBERLAND IL-
451 PM CDT FRI MAR 30 2012

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN CUMBERLAND AND
SOUTHERN CLARK COUNTIES IS CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
HOWEVER SMALL HAIL IS STILL POSSIBLE WITH THIS THUNDERSTORM.

LAT...LON 3915 8764 3917 8766 3917 8775 3918 8775
      3917 8803 3924 8822 3938 8816 3938 8801
      3932 8760 3931 8761 3930 8759 3928 8761
      3922 8757
TIME...MOT...LOC 2151Z 287DEG 14KT 3925 8790

$$

BAK

The office that day

Everything else NWS Lincoln, IL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 30, 2:52 PM CDTSpecial Weather StatementILXClark53 min
Mar 30, 2:58 PM CDTSpecial Weather StatementILXShelby62 min
Mar 30, 3:14 PM CDTSpecial Weather StatementILXClark61 min
Mar 30, 3:17 PM CDTSevere Thunderstorm WarningILXClark, Crawford, Jasper58 min
Mar 30, 3:24 PM CDTSevere Thunderstorm WarningILXClay, Effingham, Jasper54 min
Mar 30, 3:42 PM CDTSevere Thunderstorm WarningILXCumberland33 min
Mar 30, 5:00 PM CDTSpecial Weather StatementILXCrawford60 min
Mar 30, 5:09 PM CDTSpecial Weather StatementILXClay66 min
Mar 30, 6:48 PM CDTSpecial Weather StatementILXRichland27 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.