Alert archive / Illinois / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 252, NWS Paducah, KY

June 15, 2011Hamilton County, Wayne County, Illinois

NWS Paducah, KY issued this severe thunderstorm warning at Jun 15, 2011, 3:43 PM CDT for Hamilton County, Wayne County, Illinois. It was in force for 32 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 15, 2011, 3:43 PM CDT (20:43 UTC)
Expired
Jun 15, 2011, 4:15 PM CDT
In force
32 min
Issued by
NWS Paducah, KY
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Hamilton County, IL, Wayne County, IL

The radar

The Evansville,IN radar (KVWX), 70 km from the middle of the area, began a volume at 20:43 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

Davenport, (KDVN), launched 12:00Z, 8.7 hours before the alert went out and 400 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, Davenport, at 12:00Z on 2011-06-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Davenport, at 12:00Z on 2011-06-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 72 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
559 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
72 m²/s²
0-3 km storm-relative helicity
75 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.

188 
WUUS53 KPAH 152043
SVRPAH
ILC065-191-152115-
/O.NEW.KPAH.SV.W.0252.110615T2043Z-110615T2115Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PADUCAH KY
343 PM CDT WED JUN 15 2011

THE NATIONAL WEATHER SERVICE IN PADUCAH HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN HAMILTON COUNTY IN SOUTH CENTRAL ILLINOIS...
  SOUTHWESTERN WAYNE COUNTY IN SOUTH CENTRAL ILLINOIS...

* UNTIL 415 PM CDT.

* AT 341 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 7 MILES
  NORTHWEST OF WAYNE CITY..AND MOVING SOUTHEAST AT 50 MPH.

* LOCATIONS IN THE WARNING INCLUDE...
  WAYNE CITY...
  FAIRFIELD...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS STORM. SEEK SHELTER INDOORS. STAY TUNED TO
WEATHER RADIO OR LOCAL MEDIA FOR THE LATEST SEVERE WEATHER
INFORMATION.

&&

LAT...LON 3839 8830 3818 8844 3830 8871 3841 8870
      3849 8865
TIME...MOT...LOC 2044Z 297DEG 41KT 3839 8865
WIND...HAIL 60MPH 1.00IN

$$
1 follow-up statement
123 
WWUS53 KPAH 152100
SVSPAH

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PADUCAH KY
400 PM CDT WED JUN 15 2011

ILC065-191-152115-
/O.CON.KPAH.SV.W.0252.000000T0000Z-110615T2115Z/
HAMILTON IL-WAYNE IL-
400 PM CDT WED JUN 15 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 PM CDT
FOR SOUTH CENTRAL WAYNE AND NORTHEASTERN HAMILTON COUNTIES IN SOUTH
CENTRAL ILLINOIS...

AT 355 PM CDT...A SEVERE THUNDERSTORM WAS REPORTED CAPABLE OF
PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.
 THIS STORM WAS LOCATED NEAR SIMS...MOVING SOUTHEAST AT 45 MPH.

LOCATIONS IN THE WARNING INCLUDE FAIRFIELD.

LAT...LON 3832 8861 3836 8857 3843 8851 3839 8830
      3818 8844
TIME...MOT...LOC 2100Z 296DEG 38KT 3834 8849
WIND...HAIL 60MPH 1.00IN

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 15, 2:15 PM CDTSevere Thunderstorm WarningPAHUnion30 min
Jun 15, 2:36 PM CDTSevere Thunderstorm WarningPAHAlexander, Pulaski, Union24 min
Jun 15, 2:44 PM CDTSevere Thunderstorm WarningPAHJohnson31 min
Jun 15, 3:12 PM CDTSevere Thunderstorm WarningPAHJohnson, Pope33 min
Jun 15, 4:13 PM CDTSevere Thunderstorm WarningPAHHamilton, Wayne, White23 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.