Alert archive / Illinois / Tornado Warnings in 2011

Tornado Warning 14, NWS Paducah, KY

February 28, 2011Jackson County, Union County, Illinois; Cape Girardeau County, Perry County, Missouri

NWS Paducah, KY issued this tornado warning at Feb 28, 2011, 1:32 AM CST for Jackson County, Union County, Illinois; Cape Girardeau County, Perry County, Missouri. It was in force for 43 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
Feb 28, 2011, 1:32 AM CST (07:32 UTC)
Expired
Feb 28, 2011, 2:15 AM CST
In force
43 min
Issued by
NWS Paducah, KY
Area
Storm-based polygon

Counties Jackson County, IL, Union County, IL, Cape Girardeau County, MO, Perry County, MO

The radar

The Paducah radar (KPAH), 85 km from the middle of the area, began a volume at 07:35 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
Feb 27, 9:40 PM CSTTornado WatchSPC6 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 7.5 hours before the alert went out and 291 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 2011-02-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 124 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 2011-02-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 89 square meters per square second.1939587897117Sfc1 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
124 J/kg
Mixed-layer CIN
-220 J/kg
Mixed-layer LCL
494 m above ground
0-6 km bulk shear
76 kt
0-1 km storm-relative helicity
89 m²/s²
0-3 km storm-relative helicity
210 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.5

Open this sounding in Storm Lab

The text

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

217 
WFUS53 KPAH 280732
TORPAH
ILC077-181-MOC031-157-280815-
/O.NEW.KPAH.TO.W.0014.110228T0732Z-110228T0815Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE PADUCAH KY
132 AM CST MON FEB 28 2011

THE NATIONAL WEATHER SERVICE IN PADUCAH HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHERN CAPE GIRARDEAU COUNTY IN SOUTHEAST MISSOURI...
  EASTERN PERRY COUNTY IN SOUTHEAST MISSOURI...
  JACKSON COUNTY IN SOUTHERN ILLINOIS...
  UNION COUNTY IN SOUTHERN ILLINOIS...

* UNTIL 215 AM CST.

* AT 130 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 10 MILES
  NORTHWEST OF ALTENBURG...MOVING EAST AT 70 MPH.

  LARGE HAIL HAS BEEN REPORTED IN PERRYVILLE WITH THIS STORM. 

* LOCATIONS IN THE WARNING INCLUDE...
  ALTENBURG...
  GRAND TOWER...
  AVA...
  MURPHYSBORO...
  CEDAR LAKE AREA...
  CARBONDALE...
  DE SOTO...
  ELKVILLE...

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.

&&

LAT...LON 3734 8915 3732 8984 3784 8968 3791 8964
      3795 8915
TIME...MOT...LOC 0731Z 265DEG 60KT 3770 8973

$$
1 follow-up statement
124 
WWUS53 KPAH 280753
SVSPAH

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PADUCAH KY
153 AM CST MON FEB 28 2011

MOC157-280802-
/O.CAN.KPAH.TO.W.0014.000000T0000Z-110228T0815Z/
PERRY MO-
153 AM CST MON FEB 28 2011

...THE TORNADO WARNING FOR SOUTHEASTERN PERRY COUNTY IN SOUTHEAST
MISSOURI IS CANCELLED...

LAT...LON 3795 8916 3734 8915 3733 8966 3770 8945
      3791 8956
TIME...MOT...LOC 0752Z 265DEG 60KT 3789 8935 3768 8929
          3742 8958

$$

ILC077-181-MOC031-280815-
/O.CON.KPAH.TO.W.0014.000000T0000Z-110228T0815Z/
UNION IL-JACKSON IL-CAPE GIRARDEAU MO-
153 AM CST MON FEB 28 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 215 AM CST FOR JACKSON
AND UNION COUNTIES IN SOUTHERN ILLINOIS...AND EAST CENTRAL CAPE
GIRARDEAU COUNTY IN SOUTHEAST MISSOURI...

AT 149 AM CST...WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A
LINE OF SEVERE THUNDERSTORMS WITH ROTATION.  THESE STORMS WERE 
LOCATED ALONG A LINE EXTENDING FROM 4 MILES WEST OF VERGENNES TO 
CEDAR LAKE AREA TO 14 MILES WEST OF WARE...MOVING EAST AT 70 MPH.

LOCATIONS IN THE WARNING INCLUDE CARBONDALE...ALTO PASS...DE SOTO...
ELKVILLE...DOWELL...MAKANDA...COBDEN...JONESBORO...MILL CREEK...ANNA
AND DONGOLA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3795 8916 3734 8915 3733 8966 3770 8945
      3791 8956
TIME...MOT...LOC 0752Z 265DEG 60KT 3789 8935 3768 8929
          3742 8958

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 27, 8:53 PM CSTSevere Thunderstorm WarningPAHJohnson, Pope, Saline, Williamson25 min
Feb 27, 9:23 PM CSTSevere Thunderstorm WarningPAHFranklin, Hamilton, Jefferson, Wayne, Williamson37 min
Feb 27, 9:47 PM CSTSevere Thunderstorm WarningPAHEdwards, Hamilton, Wayne28 min
Feb 28, 12:14 AM CSTTornado WarningPAHJefferson46 min
Feb 28, 12:38 AM CSTTornado WarningPAHFranklin, Jefferson, Perry37 min
Feb 28, 12:46 AM CSTTornado WarningPAHHamilton, Wayne, White44 min
Feb 28, 12:53 AM CSTTornado WarningPAHWayne37 min
Feb 28, 1:12 AM CSTTornado WarningPAHEdwards, Wabash33 min
Feb 28, 1:35 AM CSTTornado WarningPAHWabash40 min
Feb 28, 2:02 AM CSTSevere Thunderstorm WarningPAHFranklin, Jackson, Johnson, Union, Williamson28 min
Feb 28, 12:06 PM CSTRiver Flood WarningPAHMassac, Pope29 days
Feb 28, 12:06 PM CSTRiver Flood WarningPAHAlexander19 days
Feb 28, 1:02 AM CSTTornado WarningPAHBollinger, Cape Girardeau, Perry43 min
Feb 28, 1:56 AM CSTSevere Thunderstorm WarningPAHCarter, Ripley, Wayne34 min
Feb 28, 12:06 PM CSTRiver Flood WarningPAHMississippi, New Madrid31 days

Nearby

Tornado Warnings in Illinois, 2011Tornado Warnings in Missouri, 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.