Alert archive / Missouri / Tornado Warnings in 2012

Tornado Warning 67, NWS Paducah, KY

August 31, 2012Bollinger County, Wayne County, Missouri

NWS Paducah, KY issued this tornado warning at Aug 31, 2012, 4:20 PM CDT for Bollinger County, Wayne County, Missouri. 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
Aug 31, 2012, 4:20 PM CDT (21:20 UTC)
Expired
Aug 31, 2012, 4:45 PM CDT
In force
25 min
Issued by
NWS Paducah, KY
Area
Storm-based polygon

Counties Bollinger County, MO, Wayne County, MO

The radar

The Paducah radar (KPAH), 130 km from the middle of the area, began a volume at 21:23 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, 9.3 hours before the alert went out and 265 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.

600 
WFUS53 KPAH 312120
TORPAH
MOC017-223-312145-
/O.NEW.KPAH.TO.W.0067.120831T2120Z-120831T2145Z/

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

THE NATIONAL WEATHER SERVICE IN PADUCAH HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHWESTERN BOLLINGER COUNTY IN SOUTHEAST MISSOURI...
  NORTHEASTERN WAYNE COUNTY IN SOUTHEAST MISSOURI...

* UNTIL 445 PM CDT.

* AT 416 PM CDT...RADAR INDICATED A THUNDERSTORM CAPABLE OF 
  PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED NEAR
  SHOOK...OR 7 MILES NORTHEAST OF WAPPAPELLO LAKE AREA...MOVING
  NORTH AT 30 MPH.

* LOCATIONS IN THE WARNED AREA INCLUDE...
  GRASSY AND CASCADE.

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 3732 9029 3730 9008 3702 9018 3704 9030
TIME...MOT...LOC 2120Z 187DEG 28KT 3708 9023

$$
1 follow-up statement
682 
WWUS53 KPAH 312130
SVSPAH

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

MOC017-223-312145-
/O.CON.KPAH.TO.W.0067.000000T0000Z-120831T2145Z/
BOLLINGER MO-WAYNE MO-
430 PM CDT FRI AUG 31 2012

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHEASTERN WAYNE AND
WEST CENTRAL BOLLINGER COUNTIES IN SOUTHEAST MISSOURI UNTIL 445 PM
CDT...

AT 427 PM CDT...RADAR INDICATED A THUNDERSTORM CAPABLE OF PRODUCING 
A TORNADO.  THIS DANGEROUS STORM WAS LOCATED 8 MILES NORTHEAST OF 
SHOOK...OR 12 MILES NORTHEAST OF WAPPAPELLO LAKE AREA...MOVING NORTH 
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 3710 9016 3713 9029 3732 9029 3730 9008
TIME...MOT...LOC 2130Z 187DEG 28KT 3716 9022

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 31, 4:29 PM CDTTornado WarningPAHBollinger, Cape Girardeau31 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.