Alert archive / Texas / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 23, NWS Midland/Odessa, TX

March 27, 2012Pecos County, Texas

NWS Midland/Odessa, TX issued this severe thunderstorm warning at Mar 27, 2012, 3:55 PM CDT for Pecos County, Texas. It was in force for 65 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: Mar 27, 2012, 3:55 PM CDT (20:55 UTC)
Expired: Mar 27, 2012, 5:00 PM CDT
In force: 65 min
Issued by: NWS Midland/Odessa, TX
Area: Storm-based polygon

County Pecos County, TX

The radar

The Midland/Odessa radar (KMAF), 153 km from the middle of the area, began a volume at 20:54 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, 8.9 hours before the alert went out and 153 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 946 J/kg
Mixed-layer CIN: -265 J/kg
Mixed-layer LCL: 1399 m above ground
0-6 km bulk shear: 10 kt
0-1 km storm-relative helicity: 36 m²/s²
0-3 km storm-relative helicity: 65 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.

617 
WUUS54 KMAF 272055
SVRMAF
TXC371-272200-
/O.NEW.KMAF.SV.W.0023.120327T2055Z-120327T2200Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MIDLAND/ODESSA TX
355 PM CDT TUE MAR 27 2012

THE NATIONAL WEATHER SERVICE IN MIDLAND HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL PECOS COUNTY IN SOUTHWEST TEXAS...

* UNTIL 500 PM CDT

* AT 350 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED OVER
  CENTRAL PECOS COUNTY...OR 24 MILES SOUTH OF FORT STOCKTON...MOVING   
  NORTHEAST AT 15 MPH. THIS STORM WILL MOVE ACROSS U.S. 285 SOUTH OF 
  FORT STOCKTON.

* THE SEVERE THUNDERSTORM WILL AFFECT THE FOLLOWING LOCATIONS...
  CENTRAL PECOS COUNTY...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS... DEADLY CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. REMEMBER...IF YOU CAN
HEAR THUNDER... YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. SEEK
SAFE SHELTER NOW.

&&

LAT...LON 3067 10279 3073 10273 3084 10256 3051 10239
      3046 10275 3062 10290
TIME...MOT...LOC 2054Z 240DEG 13KT 3058 10272

$$

1 follow-up statement

726 
WWUS54 KMAF 272135
SVSMAF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIDLAND/ODESSA TX
435 PM CDT TUE MAR 27 2012

TXC371-272200-
/O.CON.KMAF.SV.W.0023.000000T0000Z-120327T2200Z/
PECOS TX-
435 PM CDT TUE MAR 27 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 500 PM CDT
FOR CENTRAL PECOS COUNTY...

AT 431 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
DETECT A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS
LOCATED OVER SOUTH CENTRAL PECOS COUNTY...OR ABOUT 27 MILES SOUTH OF
FORT STOCKTON...MOVING NORTHEAST AT 15 MPH.

SOME LOCATIONS AFFECTED BY THE SEVERE THUNDERSTORM INCLUDE...CENTRAL
PECOS COUNTY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH... PREPARE
IMMEDIATELY FOR DAMAGING WINDS... DESTRUCTIVE HAIL... AND DEADLY
CLOUD TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO SHELTER...
PREFERABLY INSIDE A STRONG BUILDING AWAY FROM WINDOWS.

&&

LAT...LON 3067 10279 3073 10273 3084 10256 3051 10239
      3046 10275 3062 10290
TIME...MOT...LOC 2135Z 240DEG 13KT 3053 10271

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 26, 7:21 PM CDT	Severe Thunderstorm Warning	MAF	Pecos	54 min
Mar 26, 7:37 PM CDT	Severe Thunderstorm Warning	MAF	Crane, Pecos, Upton	53 min
Mar 26, 8:02 PM CDT	Severe Thunderstorm Warning	MAF	Pecos	58 min
Mar 26, 9:16 PM CDT	Severe Thunderstorm Warning	MAF	Pecos	59 min
Mar 27, 3:29 PM CDT	Severe Thunderstorm Warning	MAF	Brewster, Jeff Davis, Pecos	61 min
Mar 27, 4:03 PM CDT	Tornado Warning	MAF	Pecos	27 min
Mar 27, 4:27 PM CDT	Severe Thunderstorm Warning	MAF	Brewster, Jeff Davis, Pecos	63 min
Mar 27, 4:36 PM CDT	Areal Flood Advisory	MAF	Brewster, Jeff Davis, Pecos, Presidio, Reeves	3 hr
Mar 27, 5:34 PM CDT	Severe Thunderstorm Warning	MAF	Pecos, Terrell	56 min
Mar 27, 6:28 PM CDT	Areal Flood Advisory	MAF	Brewster, Pecos, Presidio, Terrell	3 hr
Mar 27, 6:33 PM CDT	Severe Thunderstorm Warning	MAF	Glasscock, Reagan	57 min

Nearby

Severe Thunderstorm Warnings in Texas, 2012 Every severe thunderstorm warning 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.