Alert archive / Texas / Tornado Warnings in 2012

Tornado Warning 11, NWS Midland/Odessa, TX

May 27, 2012Pecos County, Texas

NWS Midland/Odessa, TX issued this tornado warning at May 27, 2012, 6:42 PM CDT for Pecos County, Texas. It was in force for 33 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
May 27, 2012, 6:42 PM CDT (23:42 UTC)
Expired
May 27, 2012, 7:15 PM CDT
In force
33 min
Issued by
NWS Midland/Odessa, TX
Area
Storm-based polygon

County Pecos County, TX

The radar

The Midland/Odessa radar (KMAF), 161 km from the middle of the area, began a volume at 23:45 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 nearest sounding before it

Midland Regional, TX (KMAF), launched 12:00Z, 11.7 hours before the alert went out and 162 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 2012-05-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 636 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 2012-05-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 103 square meters per square second.19395878Sfc1 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
636 J/kg
Mixed-layer CIN
-192 J/kg
Mixed-layer LCL
956 m above ground
0-6 km bulk shear
13 kt
0-1 km storm-relative helicity
103 m²/s²
0-3 km storm-relative helicity
152 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

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

652 
WFUS54 KMAF 272342
TORMAF
TXC371-280015-
/O.NEW.KMAF.TO.W.0011.120527T2342Z-120528T0015Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MIDLAND/ODESSA TX
642 PM CDT SUN MAY 27 2012

THE NATIONAL WEATHER SERVICE IN MIDLAND HAS ISSUED A

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

* UNTIL 715 PM CDT

* AT 641 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO OVER CENTRAL
  PECOS COUNTY...OR 26 MILES SOUTHEAST OF FORT STOCKTON...MOVING EAST
  AT 15 MPH.

* THE TORNADO WILL AFFECT THE FOLLOWING LOCATIONS...
  SOUTHERN PECOS COUNTY...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO MAY FORM AT ANY TIME... TAKE COVER NOW. ABANDON MOBILE
HOMES AND VEHICLES FOR MORE SUBSTANTIAL SHELTER. AVOID WINDOWS.

EVACUATE MOBILE HOMES AND SEEK SAFETY IN A STURDY REINFORCED BUILDING
OR AN UNDERGROUND SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN
THE NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR
HANDS.

&&

LAT...LON 3060 10237 3032 10255 3049 10284 3066 10276
TIME...MOT...LOC 2342Z 289DEG 15KT 3054 10269

$$
1 follow-up statement
300 
WWUS54 KMAF 272357
SVSMAF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIDLAND/ODESSA TX
657 PM CDT SUN MAY 27 2012

TXC371-280015-
/O.CON.KMAF.TO.W.0011.000000T0000Z-120528T0015Z/
PECOS TX-
657 PM CDT SUN MAY 27 2012

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 715 PM CDT FOR SOUTH
CENTRAL PECOS COUNTY...

AT 653 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
DETECT A STORM CAPABLE OF PRODUCING A TORNADO.  THIS STORM WAS LOCATED 
OVER SOUTH CENTRAL PECOS COUNTY NEAR U.S.285...OR ABOUT 30 MILES 
SOUTHEAST OF FORT STOCKTON...MOVING SOUTHEAST AT 15 MPH.

SOME LOCATIONS AFFECTED BY THE TORNADO INCLUDE...SOUTH CENTRAL PECOS
COUNTY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO MAY FORM AT ANY TIME... TAKE COVER NOW. ABANDON MOBILE
HOMES AND VEHICLES FOR MORE SUBSTANTIAL SHELTER. AVOID WINDOWS.

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.

&&

LAT...LON 3060 10237 3032 10255 3049 10284 3066 10276
TIME...MOT...LOC 2356Z 289DEG 15KT 3051 10264

$$

The office that day

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

IssuedProductOfficeCountiesLasted
May 26, 7:08 PM CDTSevere Thunderstorm WarningMAFBrewster22 min
May 27, 3:41 AM CDTRed Flag WarningMAF18 hr
May 27, 3:42 PM CDTSevere Thunderstorm WarningMAFPecos, Reeves63 min
May 27, 4:30 PM CDTSevere Thunderstorm WarningMAFPecos60 min
May 27, 4:39 PM CDTSevere Thunderstorm WarningMAFPecos51 min
May 27, 5:25 PM CDTAreal Flood AdvisoryMAFPecos110 min
May 27, 5:28 PM CDTSevere Thunderstorm WarningMAFPecos62 min
May 27, 6:26 PM CDTSevere Thunderstorm WarningMAFPecos64 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.