Alert archive / Texas / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 33, NWS Midland/Odessa, TX

April 7, 2012Brewster County, Pecos County, Texas

NWS Midland/Odessa, TX issued this severe thunderstorm warning at Apr 7, 2012, 4:43 PM CDT for Brewster County, Pecos County, Texas. It was in force for 62 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 7, 2012, 4:43 PM CDT (21:43 UTC)
Expired: Apr 7, 2012, 5:45 PM CDT
In force: 62 min
Issued by: NWS Midland/Odessa, TX
Area: Storm-based polygon

Counties Brewster County, TX, Pecos County, TX

The radar

The Midland/Odessa radar (KMAF), 207 km from the middle of the area, began a volume at 21:43 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.

Issued	Product	Office	Lasted
Apr 7, 3:01 PM CDT	Severe Thunderstorm Watch	SPC	9 hr

The nearest sounding before it

Midland Regional, TX (KMAF), launched 12:00Z, 9.7 hours before the alert went out and 208 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: 993 J/kg
Mixed-layer CIN: -242 J/kg
Mixed-layer LCL: 1189 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 145 m²/s²
0-3 km storm-relative helicity: 148 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

Open this sounding in Storm Lab

The text

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

583 
WUUS54 KMAF 072143
SVRMAF
TXC043-371-072245-
/O.NEW.KMAF.SV.W.0033.120407T2143Z-120407T2245Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MIDLAND/ODESSA TX
443 PM CDT SAT APR 7 2012

THE NATIONAL WEATHER SERVICE IN MIDLAND HAS ISSUED A

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

* UNTIL 545 PM CDT

* AT 438 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING GOLF BALL SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 13
  MILES EAST OF MARATHON...MOVING SOUTH AT 15 MPH.

* THE SEVERE THUNDERSTORM WILL AFFECT THE FOLLOWING LOCATIONS...
  NORTHERN BREWSTER COUNTY...
  CENTRAL BREWSTER COUNTY...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT
SATURDAY EVENING FOR SOUTHWESTERN TEXAS.

&&

LAT...LON 3011 10276 2998 10302 3012 10335 3046 10309
      3046 10289
TIME...MOT...LOC 2143Z 000DEG 14KT 3021 10303

$$

2 follow-up statements

826 
WWUS54 KMAF 072205
SVSMAF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIDLAND/ODESSA TX
505 PM CDT SAT APR 7 2012

TXC371-072214-
/O.CAN.KMAF.SV.W.0033.000000T0000Z-120407T2245Z/
PECOS TX-
505 PM CDT SAT APR 7 2012

...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL PECOS COUNTY IS
CANCELLED...

AT 504 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT
THE STORM THAT PROMPTED THE SEVERE THUNDERSTORM WARNING HAD WEAKENED.
THEREFORE THE SEVERE THUNDERSTORM WARNING IS CANCELLED.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT
SATURDAY EVENING FOR SOUTHWESTERN TEXAS.

LAT...LON 3036 10316 3035 10300 3011 10276 2998 10302
      3012 10335
TIME...MOT...LOC 2204Z 000DEG 10KT 3016 10303

$$

TXC043-072245-
/O.CON.KMAF.SV.W.0033.000000T0000Z-120407T2245Z/
BREWSTER TX-
505 PM CDT SAT APR 7 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM CDT
FOR NORTH CENTRAL BREWSTER COUNTY...

AT 501 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
DETECT A SEVERE THUNDERSTORM CAPABLE OF PRODUCING GOLF BALL SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS
LOCATED 13 MILES EAST OF MARATHON...MOVING SOUTH AT 10 MPH.

SOME LOCATIONS AFFECTED BY THE SEVERE THUNDERSTORM INCLUDE...NORTH
CENTRAL BREWSTER COUNTY AND CENTRAL BREWSTER COUNTY.

LAT...LON 3036 10316 3035 10300 3011 10276 2998 10302
      3012 10335
TIME...MOT...LOC 2204Z 000DEG 10KT 3016 10303

$$

455 
WWUS54 KMAF 072226
SVSMAF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIDLAND/ODESSA TX
526 PM CDT SAT APR 7 2012

TXC043-072245-
/O.CON.KMAF.SV.W.0033.000000T0000Z-120407T2245Z/
BREWSTER TX-
526 PM CDT SAT APR 7 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM CDT
FOR NORTH CENTRAL BREWSTER COUNTY...

AT 524 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
DETECT A SEVERE THUNDERSTORM CAPABLE OF PRODUCING GOLF BALL SIZE 
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS 
LOCATED OVER CENTRAL BREWSTER COUNTY...OR ABOUT 14 MILES SOUTHEAST OF
MARATHON...MOVING SOUTH AT 10 MPH.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT
SATURDAY EVENING FOR SOUTHWESTERN TEXAS.

&&

LAT...LON 3011 10331 3032 10315 3031 10299 3013 10278
      3011 10276 2998 10302
TIME...MOT...LOC 2226Z 000DEG 10KT 3010 10303

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 6, 8:52 PM CDT	Severe Thunderstorm Warning	MAF	Crane	23 min
Apr 6, 9:15 PM CDT	Severe Thunderstorm Warning	MAF	Crane	60 min
Apr 6, 10:13 PM CDT	Severe Thunderstorm Warning	MAF	Crane, Upton	62 min
Apr 7, 3:07 PM CDT	Severe Thunderstorm Warning	MAF	Mitchell	53 min
Apr 7, 3:58 PM CDT	Severe Thunderstorm Warning	MAF	Mitchell	62 min
Apr 7, 4:16 PM CDT	Tornado Warning	MAF	Mitchell	29 min
Apr 7, 4:41 PM CDT	Tornado Warning	MAF	Mitchell	34 min
Apr 7, 4:58 PM CDT	Severe Thunderstorm Warning	MAF	Mitchell	62 min
Apr 7, 5:29 PM CDT	Areal Flood Advisory	MAF	Mitchell	3 hr
Apr 7, 5:34 PM CDT	Severe Thunderstorm Warning	MAF	Brewster	56 min
Apr 7, 5:59 PM CDT	Areal Flood Advisory	MAF	Pecos	3 hr
Apr 7, 6:01 PM CDT	Severe Thunderstorm Warning	MAF	Crane	31 min
Apr 7, 6:17 PM CDT	Severe Thunderstorm Warning	MAF	Glasscock	28 min
Apr 7, 6:43 PM CDT	Severe Thunderstorm Warning	MAF	Ector	62 min
Apr 7, 6:45 PM CDT	Areal Flood Advisory	MAF	Brewster	3 hr

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.