Alert archive / Illinois / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 21, NWS Paducah, KY

April 3, 2015Alexander County, Pulaski County, Union County, Illinois

NWS Paducah, KY issued this severe thunderstorm warning at Apr 3, 2015, 11:19 AM CDT for Alexander County, Pulaski County, Union County, Illinois. It was in force for 41 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
Apr 3, 2015, 11:19 AM CDT (16:19 UTC)
Expired
Apr 3, 2015, 12:00 PM CDT
In force
41 min
Issued by
NWS Paducah, KY
Area
Storm-based polygon
Hail
1.0 in
Wind
50.0 mph

Counties Alexander County, IL, Pulaski County, IL, Union County, IL

The radar

The Paducah radar (KPAH), 61 km from the middle of the area, began a volume at 16:21 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

Little Rock, AR (KBYH), launched 12:00Z, 4.3 hours before the alert went out and 278 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, Little Rock, AR at 12:00Z on 2015-04-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 12 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, Little Rock, AR at 12:00Z on 2015-04-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 516 square meters per square second.1939587897Sfc1 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
12 J/kg
Mixed-layer CIN
-578 J/kg
Mixed-layer LCL
1008 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
516 m²/s²
0-3 km storm-relative helicity
503 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.

576 
WUUS53 KPAH 031619
SVRPAH
ILC003-153-181-031700-
/O.NEW.KPAH.SV.W.0021.150403T1619Z-150403T1700Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PADUCAH KY
1119 AM CDT FRI APR 3 2015

THE NATIONAL WEATHER SERVICE IN PADUCAH HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN UNION COUNTY IN SOUTHERN ILLINOIS...
  NORTHWESTERN ALEXANDER COUNTY IN SOUTHERN ILLINOIS...
  NORTHWESTERN PULASKI COUNTY IN SOUTHERN ILLINOIS...

* UNTIL NOON CDT

* AT 1119 AM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR EAST CAPE
  GIRARDEAU...OR NEAR SCOTT CITY...MOVING EAST AT 60 MPH.

  HAZARD...QUARTER SIZE HAIL. 

  SOURCE...RADAR INDICATED. 

  IMPACT...DAMAGE TO VEHICLES IS EXPECTED. 

* LOCATIONS IMPACTED INCLUDE...
  ANNA...JONESBORO...DONGOLA...TAMMS...EAST CAPE GIRARDEAU...ULLIN...
  THEBES...PULASKI...MILL CREEK AND EAST CAPE GIRARDEA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 3720 8946 3725 8946 3725 8949 3728 8952
      3731 8951 3734 8946 3734 8944 3736 8943
      3758 8904 3724 8904 3717 8944
TIME...MOT...LOC 1619Z 247DEG 50KT 3724 8942 

HAIL...1.00IN
WIND...<50MPH
 
$$
1 follow-up statement
432 
WWUS53 KPAH 031654
SVSPAH

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PADUCAH KY
1154 AM CDT FRI APR 3 2015

ILC003-153-181-031704-
/O.EXP.KPAH.SV.W.0021.000000T0000Z-150403T1700Z/
UNION IL-ALEXANDER IL-PULASKI IL-
1154 AM CDT FRI APR 3 2015

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN UNION...
NORTHWESTERN ALEXANDER AND NORTHWESTERN PULASKI COUNTIES WILL EXPIRE
AT 1200 PM CDT...
    
THE SEVERE THUNDERSTORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF 
THE WARNED AREA. THEREFORE THE WARNING WILL BE ALLOWED TO EXPIRE.

LAT...LON 3720 8946 3725 8946 3725 8949 3728 8952
      3731 8951 3734 8946 3734 8944 3736 8943
      3758 8904 3724 8904 3717 8944
TIME...MOT...LOC 1649Z 247DEG 50KT 3724 8942 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 2, 7:31 PM CDTSpecial Weather StatementPAHWayne29 min
Apr 3, 12:25 AM CDTAreal Flood AdvisoryPAHFranklin, Gallatin, Hamilton, Jackson, Saline, White and 1 more3 hr
Apr 3, 12:43 AM CDTSpecial Weather StatementPAHFranklin32 min
Apr 3, 1:04 AM CDTSevere Thunderstorm WarningPAHJackson, Williamson26 min
Apr 3, 2:31 AM CDTSevere Thunderstorm WarningPAHGallatin, Saline29 min
Apr 3, 10:13 AM CDTRiver Flood WarningPAHGallatin, Wabash, White7 days
Apr 3, 11:08 AM CDTRiver Flood WarningPAHGallatin, Hardin26 days
Apr 3, 11:51 AM CDTSevere Thunderstorm WarningPAHGallatin, Pope, Saline24 min
Apr 3, 11:58 AM CDTSevere Thunderstorm WarningPAHJohnson, Pope, Saline28 min

Nearby

Severe Thunderstorm Warnings in Illinois, 2015Every severe thunderstorm warning in 2015

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.