Alert archive / Texas / Tornado Warnings in 2012

Tornado Warning 9, NWS Midland/Odessa, TX

April 11, 2012Pecos County, Texas

NWS Midland/Odessa, TX issued this tornado warning at Apr 11, 2012, 6:25 PM CDT for Pecos County, Texas. It was in force for 35 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 11, 2012, 6:25 PM CDT (23:25 UTC)
Expired
Apr 11, 2012, 7:00 PM CDT
In force
35 min
Issued by
NWS Midland/Odessa, TX
Area
Storm-based polygon

County Pecos County, TX

The radar

The Midland/Odessa radar (KMAF), 144 km from the middle of the area, began a volume at 23:29 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
Apr 11, 3:43 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Midland Regional, TX (KMAF), launched 12:00Z, 11.4 hours before the alert went out and 144 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, Midland Regional, TX at 12:00Z on 2012-04-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 60 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, Midland Regional, TX at 12:00Z on 2012-04-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 48 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
60 J/kg
Mixed-layer CIN
-326 J/kg
Mixed-layer LCL
1194 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
48 m²/s²
0-3 km storm-relative helicity
-11 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.1

Open this sounding in Storm Lab

The text

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

123 
WFUS54 KMAF 112325
TORMAF
TXC371-120000-
/O.NEW.KMAF.TO.W.0009.120411T2325Z-120412T0000Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MIDLAND/ODESSA TX
625 PM CDT WED APR 11 2012

THE NATIONAL WEATHER SERVICE IN MIDLAND HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL PECOS COUNTY IN SOUTHWEST TEXAS...

* UNTIL 700 PM CDT

* AT 620 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 9 MILES
  NORTHWEST OF BELDING...OR 16 MILES WEST OF FORT STOCKTON...MOVING
  EAST AT 20 MPH. 

* THE TORNADO WILL AFFECT THE FOLLOWING LOCATIONS...
  BELDING...
  FORT STOCKTON...
  ALONG AND SOUTH OF INTERSTATE 10 FROM INTERSECTION US 67 TO 
  INTERSECTION 385...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO THE TORNADO... THIS STORM IS CAPABLE OF PRODUCING
LARGE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS. SEEK SAFE SHELTER
NOW.

BRIDGES AND OVERPASSES DO NOT PROVIDE PROTECTION FROM TORNADIC WINDS.
VEHICLES STOPPED UNDER BRIDGES AND OVERPASSES BLOCK TRAFFIC AND
PREVENT OTHERS FROM REACHING SAFETY. IF YOU ARE CAUGHT IN THE PATH OF
A TORNADO... SEEK SAFETY IN A CULVERT...DITCH... OR A LOW LYING AREA
AWAY FROM YOUR VEHICLE. LIE FLAT AND COVER YOUR HEAD WITH YOUR HANDS.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT
WEDNESDAY EVENING FOR SOUTHEAST NEW MEXICO AND SOUTHWESTERN TEXAS.

&&

LAT...LON 3093 10277 3070 10288 3075 10311 3083 10322
      3095 10321
TIME...MOT...LOC 2324Z 279DEG 15KT 3085 10314

$$
2 follow-up statements
824 
WWUS54 KMAF 112346
SVSMAF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIDLAND/ODESSA TX
646 PM CDT WED APR 11 2012

TXC371-120000-
/O.CON.KMAF.TO.W.0009.000000T0000Z-120412T0000Z/
PECOS TX-
646 PM CDT WED APR 11 2012

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 700 PM CDT FOR CENTRAL
PECOS COUNTY...

AT 642 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
DETECT A TORNADO.  THIS TORNADO WAS LOCATED 6 MILES NORTHWEST OF
BELDING...OR ABOUT 12 MILES WEST OF FORT STOCKTON...MOVING EAST AT 20
MPH.

SOME LOCATIONS AFFECTED BY THE TORNADO INCLUDE...BELDING AND FORT
STOCKTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO THE TORNADO... THIS STORM IS CAPABLE OF PRODUCING
LARGE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS. SEEK SAFE SHELTER
NOW.

BRIDGES AND OVERPASSES DO NOT PROVIDE PROTECTION FROM TORNADIC WINDS.
VEHICLES STOPPED UNDER BRIDGES AND OVERPASSES BLOCK TRAFFIC AND
PREVENT OTHERS FROM REACHING SAFETY. IF YOU ARE CAUGHT IN THE PATH OF
A TORNADO... SEEK SAFETY IN A CULVERT... DITCH... OR A LOW LYING AREA
AWAY FROM YOUR VEHICLE. LIE FLAT AND COVER YOUR HEAD WITH YOUR HANDS.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT
WEDNESDAY EVENING FOR SOUTHEAST NEW MEXICO AND SOUTHWESTERN TEXAS.

&&

LAT...LON 3078 10310 3085 10316 3095 10312 3093 10277
      3070 10288
TIME...MOT...LOC 2347Z 267DEG 17KT 3087 10306

$$
367 
WWUS54 KMAF 120000
SVSMAF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIDLAND/ODESSA TX
700 PM CDT WED APR 11 2012

TXC371-120008-
/O.EXP.KMAF.TO.W.0009.000000T0000Z-120412T0000Z/
PECOS TX-
700 PM CDT WED APR 11 2012

...THE TORNADO WARNING FOR CENTRAL PECOS COUNTY WILL EXPIRE AT 700 PM
CDT...

AT 658 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR SHOWED WEAKENING
IN THE STORM THAT PROMPTED THE TORNADO WARNING. THEREFORE THE TORNADO 
WARNING WILL BE ALLOWED TO EXPIRE. SMALL HAIL AND GUSTY WINDS CAN
BE EXPECTED WITHIN THE FORT STOCKTON AREA THROUGH 730 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT
WEDNESDAY EVENING FOR SOUTHEAST NEW MEXICO AND SOUTHWESTERN TEXAS.

&&

LAT...LON 3078 10310 3085 10316 3095 10312 3093 10277
      3070 10288
TIME...MOT...LOC 2358Z 267DEG 17KT 3087 10300

$$

The office that day

Everything else NWS Midland/Odessa, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 11, 2:38 PM CDTSevere Thunderstorm WarningMAFJeff Davis, Reeves52 min
Apr 11, 2:41 PM CDTFire Weather WatchMAF13 hr
Apr 11, 3:07 PM CDTSevere Thunderstorm WarningMAFReeves53 min
Apr 11, 3:58 PM CDTSevere Thunderstorm WarningMAFPecos, Reeves62 min
Apr 11, 4:50 PM CDTSevere Thunderstorm WarningMAFCulberson, Reeves55 min
Apr 11, 4:56 PM CDTSevere Thunderstorm WarningMAFPecos, Reeves, Ward64 min
Apr 11, 5:09 PM CDTSevere Thunderstorm WarningMAFCulberson66 min
Apr 11, 5:56 PM CDTTornado WarningMAFPecos34 min
Apr 11, 6:01 PM CDTSevere Thunderstorm WarningMAFCrane, Pecos, Reeves, Ward59 min

Nearby

Tornado Warnings in Texas, 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.