Alert archive / Illinois / Tornado Warnings in 2012

Tornado Warning 76, NWS Paducah, KY

September 1, 2012Union County, Illinois; Cape Girardeau County, Missouri

NWS Paducah, KY issued this tornado warning at Sep 1, 2012, 5:29 PM CDT for Union County, Illinois; Cape Girardeau County, Missouri. It was in force for 31 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
Sep 1, 2012, 5:29 PM CDT (22:29 UTC)
Expired
Sep 1, 2012, 6:00 PM CDT
In force
31 min
Issued by
NWS Paducah, KY
Area
Storm-based polygon

Counties Union County, IL, Cape Girardeau County, MO

The radar

The Paducah radar (KPAH), 73 km from the middle of the area, began a volume at 22:29 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
Sep 1, 1:19 PM CDTTornado WatchSPC8 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 10.5 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, Nashville Metro, TN at 12:00Z on 2012-09-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 827 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, Nashville Metro, TN at 12:00Z on 2012-09-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 95 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
827 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
545 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
95 m²/s²
0-3 km storm-relative helicity
92 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.0

Open this sounding in Storm Lab

The text

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

202 
WFUS53 KPAH 012229
TORPAH
ILC181-MOC031-012300-
/O.NEW.KPAH.TO.W.0076.120901T2229Z-120901T2300Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE PADUCAH KY
529 PM CDT SAT SEP 1 2012

THE NATIONAL WEATHER SERVICE IN PADUCAH HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHWESTERN UNION COUNTY IN SOUTHERN ILLINOIS...
  EAST CENTRAL CAPE GIRARDEAU COUNTY IN SOUTHEAST MISSOURI...

* UNTIL 600 PM CDT.

* AT 525 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF
  PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED 7 MILES
  NORTHEAST OF JACKSON...MOVING NORTHEAST AT 30 MPH.

* LOCATIONS IN THE WARNED AREA INCLUDE...
  WARE...COBDEN AND ALTO PASS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 3760 8929 3750 8920 3738 8951 3745 8957
      3760 8937
TIME...MOT...LOC 2229Z 233DEG 28KT 3744 8950

$$

NOLES
1 follow-up statement
965 
WWUS53 KPAH 012245
SVSPAH

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PADUCAH KY
545 PM CDT SAT SEP 1 2012

MOC031-012255-
/O.CAN.KPAH.TO.W.0076.000000T0000Z-120901T2300Z/
CAPE GIRARDEAU MO-
545 PM CDT SAT SEP 1 2012

...THE TORNADO WARNING FOR EAST CENTRAL CAPE GIRARDEAU COUNTY IN
SOUTHEAST MISSOURI IS CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED 
AREA.

LAT...LON 3760 8929 3750 8920 3743 8938 3752 8947
      3760 8937
TIME...MOT...LOC 2245Z 233DEG 28KT 3751 8937

$$

ILC181-012300-
/O.CON.KPAH.TO.W.0076.000000T0000Z-120901T2300Z/
UNION IL-
545 PM CDT SAT SEP 1 2012

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHWESTERN UNION COUNTY
IN SOUTHERN ILLINOIS UNTIL 600 PM CDT...

AT 542 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF
PRODUCING A TORNADO.  THIS DANGEROUS STORM WAS LOCATED NEAR WARE...OR
8 MILES NORTHWEST OF JONESBORO...MOVING NORTHEAST AT 30 MPH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 3760 8929 3750 8920 3743 8938 3752 8947
      3760 8937
TIME...MOT...LOC 2245Z 233DEG 28KT 3751 8937

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 1, 5:32 PM CDTTornado WarningPAHJackson, Union, Williamson28 min
Sep 1, 5:35 PM CDTSevere Thunderstorm WarningPAHFranklin25 min
Sep 1, 5:50 PM CDTSevere Thunderstorm WarningPAHAlexander, Pulaski, Union25 min
Sep 1, 6:26 PM CDTFlash Flood WarningPAHFranklin, Jackson, Union, Williamson3 hr
Sep 1, 6:29 PM CDTSevere Thunderstorm WarningPAHAlexander, Pulaski31 min
Sep 1, 6:42 PM CDTTornado WarningPAHAlexander, Pulaski33 min
Sep 1, 3:14 PM CDTTornado WarningPAHButler, Carter, Ripley, Wayne31 min
Sep 1, 4:23 PM CDTTornado WarningPAHButler37 min
Sep 1, 4:36 PM CDTTornado WarningPAHButler, Stoddard24 min
Sep 1, 4:58 PM CDTTornado WarningPAHStoddard47 min
Sep 1, 5:04 PM CDTTornado WarningPAHNew Madrid, Stoddard41 min
Sep 1, 5:25 PM CDTTornado WarningPAHScott, Stoddard35 min
Sep 1, 5:33 PM CDTTornado WarningPAHNew Madrid, Stoddard27 min
Sep 1, 6:00 PM CDTFlash Flood WarningPAHButler3 hr
Sep 1, 6:06 PM CDTTornado WarningPAHMississippi, New Madrid, Scott24 min

Nearby

Tornado Warnings in Illinois, 2012Tornado Warnings in Missouri, 2012Every tornado warning in 2012Tornadoes 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.