Alert archive / Illinois / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 252, NWS Paducah, KY

July 2, 2012Wayne County, Illinois

NWS Paducah, KY issued this severe thunderstorm warning at Jul 2, 2012, 4:34 PM CDT for Wayne County, Illinois. It was in force for 26 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
Jul 2, 2012, 4:34 PM CDT (21:34 UTC)
Expired
Jul 2, 2012, 5:00 PM CDT
In force
26 min
Issued by
NWS Paducah, KY
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Wayne County, IL

The radar

The Evansville,IN radar (KVWX), 65 km from the middle of the area, began a volume at 21:37 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, 9.6 hours before the alert went out and 179 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 2012-07-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2475 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lincoln, IL at 12:00Z on 2012-07-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 34 square meters per square second.1939Sfc1 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
2475 J/kg
Mixed-layer CIN
-82 J/kg
Mixed-layer LCL
1566 m above ground
0-6 km bulk shear
5 kt
0-1 km storm-relative helicity
34 m²/s²
0-3 km storm-relative helicity
47 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.

160 
WUUS53 KPAH 022134
SVRPAH
ILC191-022200-
/O.NEW.KPAH.SV.W.0252.120702T2134Z-120702T2200Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PADUCAH KY
434 PM CDT MON JUL 2 2012

THE NATIONAL WEATHER SERVICE IN PADUCAH HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTH CENTRAL WAYNE COUNTY IN SOUTH CENTRAL ILLINOIS...

* UNTIL 500 PM CDT.

* AT 433 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF
  PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60
  MPH.  THIS STORM WAS LOCATED NEAR CISNE...OR 10 MILES NORTH OF
  FAIRFIELD...MOVING EAST AT 10 MPH.

* LOCATIONS IN THE WARNED AREA INCLUDE...
  MAINLY RURAL AREAS OF NORTHERN WAYNE COUNTY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEEK SHELTER INDOORS. STAY TUNED TO WEATHER RADIO OR LOCAL MEDIA FOR
THE LATEST SEVERE WEATHER INFORMATION.

&&

LAT...LON 3861 8828 3846 8829 3845 8849 3860 8852
TIME...MOT...LOC 2134Z 254DEG 8KT 3852 8842
WIND...HAIL 60MPH 1.00IN

$$
1 follow-up statement
927 
WWUS53 KPAH 022153
SVSPAH

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PADUCAH KY
453 PM CDT MON JUL 2 2012

ILC191-022203-
/O.EXP.KPAH.SV.W.0252.000000T0000Z-120702T2200Z/
WAYNE IL-
453 PM CDT MON JUL 2 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL WAYNE COUNTY IN
SOUTH CENTRAL ILLINOIS WILL EXPIRE AT 500 PM CDT/600 PM EDT/...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.

LAT...LON 3861 8828 3846 8829 3845 8849 3860 8852
TIME...MOT...LOC 2153Z 254DEG 8KT 3853 8837

$$

The office that day

Everything else NWS Paducah, KY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 2, 2:04 PM CDTSevere Thunderstorm WarningPAHWilliamson26 min
Jul 2, 2:07 PM CDTSevere Thunderstorm WarningPAHGallatin23 min
Jul 2, 2:46 PM CDTAreal Flood AdvisoryPAHGallatin, Saline3 hr
Jul 2, 2:55 PM CDTSevere Thunderstorm WarningPAHSaline35 min
Jul 2, 3:34 PM CDTSevere Thunderstorm WarningPAHHamilton, White26 min
Jul 2, 4:32 PM CDTSevere Thunderstorm WarningPAHEdwards, Wayne28 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.