Alert archive / Texas / Tornado Warnings in 2009

Tornado Warning 4, NWS Midland/Odessa, TX

April 11, 2009Glasscock County, Howard County, Texas

NWS Midland/Odessa, TX issued this tornado warning at Apr 11, 2009, 8:03 PM CDT for Glasscock County, Howard County, Texas. It was in force for 27 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Apr 11, 2009, 8:03 PM CDT (01:03 UTC)
Expired
Apr 11, 2009, 8:30 PM CDT
In force
27 min
Issued by
NWS Midland/Odessa, TX
Area
Storm-based polygon

Counties Glasscock County, TX, Howard County, TX

The radar

The Midland/Odessa radar (KMAF), 81 km from the middle of the area, began a volume at 01:02 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.

What was reported inside it

TimeReportWhereRemark
Apr 11, 8:34 PM CDTHAIL 111 S Big Spring, TXDIME TO QUARTER SIZE HAIL REPORTED 11 MILES SOUTH OF BIG SPRING.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Apr 11, 3:18 PM CDTSevere Thunderstorm WatchSPC8 hr

The nearest sounding before it

Del Rio, TX (KDRT), launched 00:00Z, 1.1 hours before the alert went out and 300 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, Del Rio, TX at 00:00Z on 2009-04-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Del Rio, TX at 00:00Z on 2009-04-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 231 square meters per square second.1939587897Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1592 m above ground
0-6 km bulk shear
76 kt
0-1 km storm-relative helicity
231 m²/s²
0-3 km storm-relative helicity
571 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.

000 
WFUS54 KMAF 120103
TORMAF
TXC173-227-120130-
/O.NEW.KMAF.TO.W.0004.090412T0103Z-090412T0130Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MIDLAND/ODESSA TX
803 PM CDT SAT APR 11 2009

THE NATIONAL WEATHER SERVICE IN MIDLAND HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHERN HOWARD COUNTY IN WEST TEXAS...
  NORTHEASTERN GLASSCOCK COUNTY IN WEST TEXAS...

* UNTIL 830 PM CDT

* AT 803 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 6 MILES
  SOUTHWEST OF LEES...OR 10 MILES NORTHWEST OF GARDEN CITY...MOVING
  NORTHEAST AT 45 MPH.

* THE TORNADO WILL AFFECT THE FOLLOWING LOCATIONS...
  LEES...
  FARM TO MARKET 33 FROM 5 MILES NORTH OF GARDEN CITY TO LEES...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

HEAVY RAINFALL MAY OBSCURE THIS TORNADO. IF YOU WAIT TO SEE OR HEAR
IT COMING... IT MAY BE TOO LATE TO GET TO A SAFE PLACE. TAKE COVER
NOW.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT
SATURDAY EVENING FOR SOUTHEAST NEW MEXICO AND SOUTHWESTERN TEXAS.

&&

LAT...LON 3208 10122 3208 10126 3191 10126 3184 10127
      3189 10163 3207 10166 3231 10118
TIME...MOT...LOC 0103Z 241DEG 39KT 3201 10155

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 11, 7:05 PM CDTFlash Flood WarningMAFEctor, Midland3 hr
Apr 11, 7:13 PM CDTSevere Thunderstorm WarningMAFBorden, Dawson62 min
Apr 11, 7:15 PM CDTSevere Thunderstorm WarningMAFCrane, Ector, Ward, Winkler60 min
Apr 11, 7:40 PM CDTAreal Flood AdvisoryMAFDawson, Martin3 hr
Apr 11, 7:43 PM CDTTornado WarningMAFGlasscock, Midland32 min
Apr 11, 7:44 PM CDTSevere Thunderstorm WarningMAFBorden, Dawson, Glasscock, Howard, Martin, Midland and 2 more61 min
Apr 11, 7:54 PM CDTSevere Thunderstorm WarningMAFCrane, Ector, Pecos, Upton, Ward36 min
Apr 11, 8:12 PM CDTSevere Thunderstorm WarningMAFEctor, Midland, Upton33 min
Apr 11, 8:29 PM CDTTornado WarningMAFHoward, Mitchell46 min
Apr 11, 8:44 PM CDTSevere Thunderstorm WarningMAFGlasscock, Howard, Martin, Midland, Mitchell, Scurry and 1 more61 min
Apr 11, 8:46 PM CDTFlash Flood WarningMAFGlasscock4 hr
Apr 11, 9:20 PM CDTTornado WarningMAFGlasscock25 min
Apr 11, 9:55 PM CDTSevere Thunderstorm WarningMAFReagan, Upton50 min
Apr 11, 11:40 PM CDTSevere Thunderstorm WarningMAFTerrell35 min
Apr 12, 5:39 AM CDTHigh Wind WarningMAF14 hr
Apr 12, 5:39 AM CDTWind AdvisoryMAFLoving, Pecos, Ward, Winkler14 hr
Apr 12, 5:43 AM CDTRed Flag WarningMAF14 hr

Nearby

Tornado Warnings in Texas, 2009Every tornado warning in 2009Tornadoes in 2009

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.