Alert archive / Missouri / Tornado Warnings in 2012

Tornado Warning 68, NWS Paducah, KY

August 31, 2012Bollinger County, Cape Girardeau County, Missouri

NWS Paducah, KY issued this tornado warning at Aug 31, 2012, 4:29 PM CDT for Bollinger County, 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
Aug 31, 2012, 4:29 PM CDT (21:29 UTC)
Expired
Aug 31, 2012, 5:00 PM CDT
In force
31 min
Issued by
NWS Paducah, KY
Area
Storm-based polygon

Counties Bollinger County, MO, Cape Girardeau County, MO

The radar

The Paducah radar (KPAH), 110 km from the middle of the area, began a volume at 21:30 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
Aug 31, 1:56 PM CDTTornado WatchSPC8 hr

The nearest sounding before it

Little Rock, AR (KBYH), launched 12:00Z, 9.5 hours before the alert went out and 288 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 2012-08-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 120 joules per kilogram.LCLEL10008507005003002001001 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 2012-08-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 154 square meters per square second.193958Sfc1 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
120 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
446 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
154 m²/s²
0-3 km storm-relative helicity
135 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.

904 
WFUS53 KPAH 312129
TORPAH
MOC017-031-312200-
/O.NEW.KPAH.TO.W.0068.120831T2129Z-120831T2200Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE PADUCAH KY
429 PM CDT FRI AUG 31 2012

THE NATIONAL WEATHER SERVICE IN PADUCAH HAS ISSUED A

* TORNADO WARNING FOR...
  EAST CENTRAL BOLLINGER COUNTY IN SOUTHEAST MISSOURI...
  WEST CENTRAL CAPE GIRARDEAU COUNTY IN SOUTHEAST MISSOURI...

* UNTIL 500 PM CDT.

* AT 427 PM CDT...RADAR INDICATED A THUNDERSTORM CAPABLE OF
  PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED NEAR   
  LEOPOLD...MOVING NORTH AT 35 MPH.

* LOCATIONS IN THE WARNED AREA INCLUDE...
  MARBLE HILL...DAISY AND SEDGEWICKVILLE.

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 3755 8999 3753 8978 3724 8987 3725 9000
TIME...MOT...LOC 2129Z 187DEG 30KT 3728 8994

$$
2 follow-up statements
182 
WWUS53 KPAH 312142
SVSPAH

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PADUCAH KY
442 PM CDT FRI AUG 31 2012

MOC017-031-312200-
/O.CON.KPAH.TO.W.0068.000000T0000Z-120831T2200Z/
BOLLINGER MO-CAPE GIRARDEAU MO-
442 PM CDT FRI AUG 31 2012

...A TORNADO WARNING REMAINS IN EFFECT FOR WEST CENTRAL CAPE
GIRARDEAU AND EAST CENTRAL BOLLINGER COUNTIES IN SOUTHEAST MISSOURI
UNTIL 500 PM CDT...

AT 440 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF 
PRODUCING A TORNADO.  THIS DANGEROUS STORM WAS LOCATED 5 MILES 
NORTHEAST MARBLE HILL...MOVING NORTH NORTHEAST AT 35 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 3755 8999 3753 8978 3731 8985 3734 8999
TIME...MOT...LOC 2142Z 187DEG 30KT 3739 8991

$$
356 
WWUS53 KPAH 312158
SVSPAH

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PADUCAH KY
458 PM CDT FRI AUG 31 2012

MOC017-031-312208-
/O.EXP.KPAH.TO.W.0068.000000T0000Z-120831T2200Z/
BOLLINGER MO-CAPE GIRARDEAU MO-
458 PM CDT FRI AUG 31 2012

...THE TORNADO WARNING FOR WEST CENTRAL CAPE GIRARDEAU AND EAST
CENTRAL BOLLINGER COUNTIES IN SOUTHEAST MISSOURI WILL EXPIRE AT 500 
PM CDT...

THE CIRCULATION WITHIN THE STORM THAT PROMPTED THE WARNING HAS 
WEAKENED. 

LAT...LON 3755 8999 3753 8978 3731 8985 3734 8999
TIME...MOT...LOC 2158Z 187DEG 30KT 3752 8989

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 31, 4:20 PM CDTTornado WarningPAHBollinger, Wayne25 min
Aug 31, 4:40 PM CDTTornado WarningPAHBollinger23 min

Nearby

Tornado 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.