Alert archive / Texas / Severe Thunderstorm Warnings in 2009

Severe Thunderstorm Warning 291, NWS Midland/Odessa, TX

July 30, 2009Mitchell County, Scurry County, Texas

NWS Midland/Odessa, TX issued this severe thunderstorm warning at Jul 30, 2009, 1:12 AM CDT for Mitchell County, Scurry County, Texas. It was in force for 63 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jul 30, 2009, 1:12 AM CDT (06:12 UTC)
Expired
Jul 30, 2009, 2:15 AM CDT
In force
63 min
Issued by
NWS Midland/Odessa, TX
Area
Storm-based polygon

Counties Mitchell County, TX, Scurry County, TX

The radar

The San Angelo radar (KSJT), 135 km from the middle of the area, began a volume at 06:12 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
Jul 30, 12:52 AM CDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Midland Regional, TX (KMAF), launched 00:00Z, 6.2 hours before the alert went out and 136 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 00:00Z on 2009-07-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1022 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, Midland Regional, TX at 00:00Z on 2009-07-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 59 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
1022 J/kg
Mixed-layer CIN
-88 J/kg
Mixed-layer LCL
2144 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
59 m²/s²
0-3 km storm-relative helicity
113 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.8

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Midland/Odessa, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 30, 1:09 AM CDT, 3 minutes earlier.

Area forecast discussion, Jul 30, 1:09 AM CDT, 3 minutes before
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Hazardous weather outlook, Jul 29, 1:30 PM CDT, 11 hours 42 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MIDLAND/ODESSA TX
130 PM CDT WED JUL 29 2009

NMZ027>029-033-034-TXZ045>048-050>053-057>063-067>070-074-075-
079>082-258-301830-
GUADALUPE MOUNTAINS OF EDDY COUNTY-EDDY COUNTY PLAINS-
NORTHERN LEA COUNTY-CENTRAL LEA COUNTY-SOUTHERN LEA COUNTY-GAINES-
DAWSON-BORDEN-SCURRY-ANDREWS-MARTIN-HOWARD-MITCHELL-
VAN HORN AND HIGHWAY 54 CORRIDOR-REEVES COUNTY AND UPPER TRANS PECOS-
LOVING-WINKLER-ECTOR-MIDLAND-GLASSCOCK-WARD-CRANE-UPTON-REAGAN-
DAVIS/APACHE MOUNTAINS AREA-PECOS-PRESIDIO VALLEY-MARFA PLATEAU-
BIG BEND AREA-TERRELL-GUADALUPE MOUNTAINS-
130 PM CDT WED JUL 29 2009 /1230 PM MDT WED JUL 29 2009/

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST NEW
MEXICO...SOUTHWEST TEXAS AND WEST TEXAS.

.DAY ONE...THIS AFTERNOON AND TONIGHT

ISOLATED TO WIDELY SCATTERED THUNDERSTORMS ARE WILL BE POSSIBLE
THIS AFTERNOON ACROSS THE WEST TEXAS AND SOUTHEAST NEW MEXICO
MOUNTAINS INCLUDING THE MARFA PLATEAU. ADDITIONAL THUNDERSTORMS
ARE POSSIBLE ACROSS THE LOWER TRANS PECOS. ALTHOUGH NO WIDESPREAD
SEVERE WEATHER IS EXPECTED THROUGH THE AFTERNOON...HEAVY
DOWNPOURS...COUPLED WITH STRONG WIND GUSTS...SMALL HAIL...AND
OCCASIONAL TO FREQUENT LIGHTNING WILL BE POSSIBLE.

THROUGH THE OVERNIGHT PERIOD...AFTERNOON THUNDERSTORMS ACROSS
CENTRAL AND EASTERN NEW MEXICO ARE EXPECTED TO ORGANIZE INTO A
WELL DEVELOPED COMPLEX OF STORMS BEFORE HEADING SOUTHEAST TOWARDS
WEST TEXAS AND SOUTHEAST NEW MEXICO. THESE STORMS ARE EXPECTED TO
ARRIVE INTO THE AREA AROUND MIDNIGHT. THIS CLUSTER OF STORMS WILL
LIKELY APPROACH OR EXCEED SEVERE LIMITS...WITH STRONG DAMAGING
WINDS IN EXCESS OF 60 MPH BEING THE PRIMARY THREAT.
ADDITIONALLY...FREQUENT LIGHTNING ALONG WITH VERY HEAVY RAINFALL
AND LOCALIZED AREAS OF FLASH FLOODING WILL BE POSSIBLE.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

ADDITIONAL THUNDERSTORMS ARE EXPECTED ACROSS MUCH OF THE AREA FROM
THURSDAY THROUGH FRIDAY EVENING IN RESPONSE TO A STALLED FRONTAL
BOUNDARY. THE PRIMARY THREATS WILL BE STRONG DAMAGING WINDS ALONG
WITH HEAVY RAINFALL AND LOCALIZED AREAS OF FLASH FLOODING.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED TODAY OR TONIGHT.

THIS PRODUCT...ALONG WITH OTHER WATCHES...WARNINGS...ADVISORIES...
AND STATEMENTS ISSUED BY THE NATIONAL WEATHER SERVICE OFFICE IN
MIDLAND CAN BE FOUND ON THE INTERNET AT /LOWER CASE/
HTTP://WEATHER.GOV/MIDLAND

In the hours before

Special weather statement, Jul 29, 8:40 PM CDT, 4 hours 32 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIDLAND/ODESSA TX
840 PM CDT WED JUL 29 2009

TXZ058-059-300215-
LOVING-REEVES COUNTY AND UPPER TRANS PECOS-
840 PM CDT WED JUL 29 2009

...SIGNIFICANT WEATHER ALERT...

THIS SIGNIFICANT WEATHER ALERT IS FOR NORTHEASTERN CULBERSON...
NORTHWESTERN REEVES AND WEST CENTRAL LOVING COUNTIES.

AN INTENSIFYING THUNDERSTORM WAS LOCATED 7 MILES WEST OF RED BLUFF AT
839 PM CDT...MOVING SOUTHEAST AT 15 MPH. THIS STORM WILL BE
APPROACHING F.M. 652 AND THE TOWN OF ORLA. HEAVY RAIN...SMALL
HAIL...GUSTY WINDS AND CLOUD TO GROUND LIGHTNING ARE POSSIBLE WITH
THIS STORM.

AS THIS THUNDERSTORM INCREASES...SEVERE WEATHER MAY DEVELOP RAPIDLY.

DANIELS

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 29, 7:16 PM CDTSevere Thunderstorm WarningMAFCulberson, Loving, Reeves59 min
Jul 29, 8:50 PM CDTSevere Thunderstorm WarningMAFLoving, Reeves25 min
Jul 30, 12:15 AM CDTSevere Thunderstorm WarningMAFBorden, Scurry60 min
Jul 30, 1:34 AM CDTSevere Thunderstorm WarningMAFAndrews, Dawson, Gaines, Martin56 min
Jul 30, 2:01 AM CDTAreal Flood AdvisoryMAFAndrews, Martin3 hr
Jul 30, 3:20 AM CDTAreal Flood AdvisoryMAFGlasscock, Howard3 hr
Jul 30, 4:27 AM CDTFlash Flood WatchMAFAndrews, Borden, Crane, Dawson, Ector, Gaines and 13 more58 hr
Jul 30, 6:11 AM CDTAreal Flood AdvisoryMAFEctor, Midland3 hr
Jul 30, 6:45 AM CDTFlash Flood WarningMAFEctor64 min
Jul 30, 3:39 PM CDTAreal Flood AdvisoryMAFBrewster, Presidio3 hr
Jul 30, 3:50 PM CDTSevere Thunderstorm WarningMAFPecos55 min
Jul 30, 3:56 PM CDTSevere Thunderstorm WarningMAFPecos64 min
Jul 30, 4:38 PM CDTAreal Flood AdvisoryMAFPecos, Terrell3 hr
Jul 30, 4:42 PM CDTSevere Thunderstorm WarningMAFBrewster, Pecos35 min
Jul 30, 4:44 PM CDTSevere Thunderstorm WarningMAFBrewster61 min
Jul 30, 5:15 PM CDTSevere Thunderstorm WarningMAFPecos60 min
Jul 30, 5:22 PM CDTAreal Flood AdvisoryMAFBrewster3 hr
Jul 30, 5:23 PM CDTSevere Thunderstorm WarningMAFBrewster37 min
Jul 30, 6:35 PM CDTFlash Flood WarningMAFBrewster3 hr

Nearby

Severe Thunderstorm Warnings in Texas, 2009Every severe thunderstorm warning 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.