Alert archive / Illinois / Tornado Warnings in 2011

Tornado Warning 49, NWS Paducah, KY

April 19, 2011Edwards County, Wabash County, Wayne County, Illinois

NWS Paducah, KY issued this tornado warning at Apr 19, 2011, 9:35 PM CDT for Edwards County, Wabash County, Wayne County, Illinois. It was in force for 25 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 19, 2011, 9:35 PM CDT (02:35 UTC)
Expired
Apr 19, 2011, 10:00 PM CDT
In force
25 min
Issued by
NWS Paducah, KY
Area
Storm-based polygon

Counties Edwards County, IL, Wabash County, IL, Wayne County, IL

The radar

The Evansville,IN radar (KVWX), 30 km from the middle of the area, began a volume at 02:36 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
Apr 19, 6:46 PM CDTTornado WatchSPC9 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 2.6 hours before the alert went out and 193 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 00:00Z on 2011-04-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2409 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 00:00Z on 2011-04-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 370 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
2409 J/kg
Mixed-layer CIN
-46 J/kg
Mixed-layer LCL
523 m above ground
0-6 km bulk shear
62 kt
0-1 km storm-relative helicity
370 m²/s²
0-3 km storm-relative helicity
547 m²/s²
Significant tornado parameter
0.0
Supercell composite
24.4

Open this sounding in Storm Lab

The text

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

637 
WFUS53 KPAH 200235
TORPAH
ILC047-185-191-200300-
/O.NEW.KPAH.TO.W.0049.110420T0235Z-110420T0300Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE PADUCAH KY
935 PM CDT TUE APR 19 2011

THE NATIONAL WEATHER SERVICE IN PADUCAH HAS ISSUED A

* TORNADO WARNING FOR...
  EAST CENTRAL WAYNE COUNTY IN SOUTH CENTRAL ILLINOIS...
  NORTHERN EDWARDS COUNTY IN SOUTHEAST ILLINOIS...
  NORTHERN WABASH COUNTY IN SOUTHEAST ILLINOIS...

* UNTIL 1000 PM CDT.

* AT 931 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 13 MILES WEST OF
  WEST SALEM...MOVING NORTHEAST AT 70 MPH.

* LOCATIONS IN THE WARNING INCLUDE...
  WEST SALEM...
  WEST SALEM...
  LANCASTER...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

NOW IS THE TIME TO IMPLEMENT YOUR TORNADO PLAN OF ACTION. SEEK
SHELTER INDOORS IN A BASEMENT...OR IN AN INTERIOR ROOM ON THE LOWEST
FLOOR OF A HOME OR BUILDING.

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING 
QUARTER SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS IN EXCESS OF 
80 MPH.

&&

LAT...LON 3857 8765 3854 8767 3852 8764 3850 8764
      3850 8768 3848 8769 3838 8824 3851 8830
      3858 8811 3858 8766
TIME...MOT...LOC 0234Z 245DEG 60KT 3847 8818

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 19, 7:43 PM CDTSevere Thunderstorm WarningPAHAlexander, Jackson, Union62 min
Apr 19, 8:14 PM CDTTornado WarningPAHJackson, Union31 min
Apr 19, 8:15 PM CDTSevere Thunderstorm WarningPAHFranklin, Jackson, Jefferson, Johnson, Perry, Union and 1 more60 min
Apr 19, 8:26 PM CDTTornado WarningPAHJackson, Perry18 min
Apr 19, 8:27 PM CDTAreal Flood AdvisoryPAHAlexander, Jackson, Perry, Union3 hr
Apr 19, 8:37 PM CDTSevere Thunderstorm WarningPAHAlexander, Johnson, Massac, Pulaski38 min
Apr 19, 8:47 PM CDTAreal Flood AdvisoryPAHFranklin, Jefferson, Johnson, Pulaski, Williamson3 hr
Apr 19, 8:50 PM CDTSevere Thunderstorm WarningPAHEdwards, Franklin, Gallatin, Hamilton, Hardin, Jefferson and 4 more55 min
Apr 19, 8:53 PM CDTTornado WarningPAHJefferson, Perry, Wayne37 min
Apr 19, 9:01 PM CDTSevere Thunderstorm WarningPAHAlexander, Hardin, Johnson, Massac, Pope, Pulaski44 min
Apr 19, 9:13 PM CDTTornado WarningPAHHamilton, White32 min
Apr 19, 9:17 PM CDTSevere Thunderstorm WarningPAHEdwards, Gallatin, Wabash, White58 min
Apr 19, 9:19 PM CDTAreal Flood AdvisoryPAHEdwards, Gallatin, Hamilton, Hardin, Pope, Saline and 3 more3 hr
Apr 19, 9:20 PM CDTSevere Thunderstorm WarningPAHGallatin, Hardin55 min
Apr 19, 9:26 PM CDTTornado WarningPAHWayne23 min
Apr 19, 9:29 PM CDTTornado WarningPAHWhite31 min
Apr 19, 9:30 PM CDTTornado WarningPAHAlexander, Jackson30 min
Apr 19, 9:39 PM CDTTornado WarningPAHAlexander36 min
Apr 19, 9:46 PM CDTSevere Thunderstorm WarningPAHAlexander, Hardin, Johnson, Massac, Pope, Pulaski and 1 more59 min
Apr 19, 9:54 PM CDTTornado WarningPAHAlexander, Pulaski, Union20 min
Apr 19, 9:58 PM CDTAreal Flood AdvisoryPAHMassac3 hr
Apr 19, 10:07 PM CDTSevere Thunderstorm WarningPAHEdwards, Gallatin, Wabash, White53 min
Apr 19, 10:09 PM CDTSevere Thunderstorm WarningPAHGallatin, Hardin66 min
Apr 19, 10:46 PM CDTSevere Thunderstorm WarningPAHMassac, Pope59 min
Apr 20, 10:05 AM CDTRiver Flood WarningPAHGallatin, Wayne, White50 hr

Nearby

Tornado Warnings in Illinois, 2011Every tornado warning in 2011Tornadoes 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.