Alert archive / Texas / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 507, NWS Midland/Odessa, TX

August 25, 2007Presidio County, Texas

NWS Midland/Odessa, TX issued this severe thunderstorm warning at Aug 25, 2007, 2:40 PM CDT for Presidio 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: Aug 25, 2007, 2:40 PM CDT (19:40 UTC)
Expired: Aug 25, 2007, 3:45 PM CDT
In force: 65 min
Issued by: NWS Midland/Odessa, TX
Area: Counties, with a storm outline in the text

County Presidio County, TX

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Santa Teresa, NM (KEPZ), launched 12:00Z, 7.7 hours before the alert went out and 255 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: 340 J/kg
Mixed-layer CIN: -239 J/kg
Mixed-layer LCL: 1689 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: 58 m²/s²
0-3 km storm-relative helicity: 141 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.0

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KMAF 251945
SVRMAF
TXC377-252045-
/O.NEW.KMAF.SV.W.0507.070825T1940Z-070825T2045Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MIDLAND/ODESSA TX
240 PM CDT SAT AUG 25 2007

THE NATIONAL WEATHER SERVICE IN MIDLAND HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN PRESIDIO COUNTY IN SOUTHWEST TEXAS...

* UNTIL 345 PM CDT

* AT 238 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE 
  MONITORING A SEVERE THUNDERSTORM CAPABLE OF PRODUCING NICKEL 
  SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS 
  STORM WAS LOCATED OVER NORTHWESTERN PRESIDIO COUNTY...OR 
  36 MILES WEST OF MARFA...DRIFTING SOUTHWEST AT 5 MPH. THIS 
  STORM IS EXPECTED TO REMAIN OVER RURAL PRESIDIO COUNTY AND
  WILL AFFECT LOCAL COUNTY ROADS.

  ANOTHER SEVERE THUNDERSTORM WAS LOCATED 12 MILES SOUTHEAST OF
  MARFA ALSO CAPABLE OF PRODUCING NICKEL SIZED HAIL...AND DAMAGING
  WINDS IN EXCESS OF 60 MPH.  THIS STORM IS MOVING TO THE SOUTHWEST
  AT 5 MPH AND WILL AFFECT FM 169 WITHIN THE NEXT HOUR.

* THE SEVERE THUNDERSTORM WILL AFFECT THE FOLLOWING LOCATIONS...
  NORTHWESTERN PRESIDIO COUNTY...
  FM 169...

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.

A SEVERE THUNDERSTORM WARNING MEANS THAT SEVERE WEATHER IS OCCURRING
OR IS IMMINENT. WIND GUSTS IN EXCESS OF 60 MPH... HAIL THREE-QUARTERS
OF AN INCH IN DIAMETER OR LARGER... VERY HEAVY RAIN... AND DEADLY
LIGHTNING ARE ALL LIKELY. IF YOU ARE IN THE PATH OF THIS SEVERE STORM
MOVE TO SAFE SHELTER NOW.

LAT...LON 3017 10466 3041 10484 3062 10489 3055 10457
      3033 10440
TIME...MOT...LOC 1940Z 035DEG 5KT 3041 10463

$$


13

2 follow-up statements

000 
WWUS54 KMAF 252011
SVSMAF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIDLAND/ODESSA TX
306 PM CDT SAT AUG 25 2007

TXC377-252045-
/O.CON.KMAF.SV.W.0507.000000T0000Z-070825T2045Z/
PRESIDIO TX-
306 PM CDT SAT AUG 25 2007

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 345 PM CDT
FOR NORTHWESTERN PRESIDIO COUNTY...

AT 304 PM CDT...THE PUBLIC REPORTED PENNY SIZE HAIL IN THE TOWN
OF MARFA. 

AT 305 PM CDT DOPPLER RADAR INDICATED TWO SEVERE THUNDERSTORMS
CAPABLE OF PRODUCING PRODUCING PENNY SIZE HAIL AND DAMAGING WINDS
IN EXCESS OF 60 MPH. ONE SEVERE STORM WAS NEAR MARFA. ANOTHER SEVERE
THUNDERSTORM WAS IN OPEN COUNTRY OF EXTREME NORTHWEST PRESIDIO 
COUNTY...35 MILES WEST OF MARFA. BOTH STORMS WERE MOVING TO THE 
SOUTHWEST AT 5 MPH.

SOME LOCATIONS AFFECTED BY THE SEVERE THUNDERSTORM INCLUDE...
MARFA...
HIGHWAY 90 NEAR MARFA
OPEN COUNTRY OF EXTREME NORTHWEST PRESIDIO COUNTY

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

LAT...LON 3017 10466 3041 10484 3062 10489 3055 10457
      3033 10440
TIME...MOT...LOC 2006Z 035DEG 5KT 3038 10465

$$

000 
WWUS54 KMAF 252039
SVSMAF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIDLAND/ODESSA TX
337 PM CDT SAT AUG 25 2007

TXC377-252047-
/O.EXP.KMAF.SV.W.0507.000000T0000Z-070825T2045Z/
PRESIDIO TX-
337 PM CDT SAT AUG 25 2007

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN PRESIDIO COUNTY
EXPIRES AT 345 PM CDT...

AT 337 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT
THE STORM THAT PROMPTED THE SEVERE THUNDERSTORM WARNING HAS WEAKENED
BELOW SEVERE LEVELS. THEREFORE THE SEVERE THUNDERSTORM WARNING WILL
BE ALLOWED TO EXPIRE.  ADDITIONAL DEVELOPMENTS ARE POSSIBLE THROUGHOUT
THE REMAINDER OF THE AFTERNOON...SO ADDITIONAL WARNINGS MAY BE NECESSARY.

ALTHOUGH THE THREAT OF SEVERE WEATHER HAS PASSED... PONDING OF WATER
WILL LIKELY CONTINUE ON SOME ROADWAYS. MOTORISTS SHOULD REMAIN
CAUTIOUS AND BE PREPARED TO SLOW DOWN IF WATER IS ENCOUNTERED TO
PREVENT HYDROPLANING AND LOSS OF VEHICLE CONTROL.

LAT...LON 3017 10466 3041 10484 3062 10489 3055 10457
      3033 10440
TIME...MOT...LOC 2037Z 035DEG 5KT 3034 10468

$$


13

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 Aug 25, 1:22 PM CDT, 1 hour 18 minutes earlier.

Area forecast discussion, Aug 25, 1:22 PM CDT, 1 hour 18 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MIDLAND/ODESSA TX
122 PM CDT SAT AUG 25 2007

.DISCUSSION...
MODELS CONTINUE TO RETROGRADE THE BROAD UPPER RIDGE ACROSS WEST
TEXAS AND THE SOUTHERN STATES WESTWARD INTO THE DESERT SOUTHWEST
BY THE LATTER HALF OF NEXT WEEK. THIS WILL HAVE A NET AFFECT OF
LOWERING HEIGHTS ALOFT ACROSS WEST TEXAS AND SOUTHEAST NEW MEXICO
WITH A CORRESPONDING UPTICK IN POPS AND A SLIGHT LOWERING IN
AFTERNOON HIGH TEMPERATURES TO NEAR SEASONAL NORMS FOR LATE AUGUST
/AROUND 90F AT KMAF/ BY MID-WEEK.

WILL CARRY LOW CHANCES FOR THUNDERSTORMS LATE THIS AFTERNOON AND
ACROSS THE WESTERN TWO THIRDS OF THE CWFA...ROUGHLY ALONG/WEST OF A
LAMESA TO ODESSA TO FORT STOCKTON LINE. MODEST INSTABILITY...CAPES
TO 2000 J/KG...AND STEEPENING LAPSE RATES ALOFT WILL COMBINE WITH
WEAK LOW LEVEL ASCENT AND MOISTURE CONVERGENCE ALONG A LEE SIDE
SURFACE TROUGH EXTENDING FROM SOUTHEASTERN NEW MEXICO SOUTHWARD
INTO THE DAVIS MOUNTAINS FOR A FEW STRONG TO MARGINALLY SEVERE
STORMS THIS AFTERNOON AND EVENING ACROSS OUR WESTERN AREAS. LARGE
HAIL AND STRONG WINDS WILL BE THE PRIMARY CONCERNS. DUE TO THE
SUPPRESSING RIDGE ALOFT...THUNDERSTORMS SHOULD REMAIN ISOLATED
WITH COVERAGE AND INTENSITY DECREASING SHORTLY AFTER SUNSET.

THUNDERSTORMS ARE EXPECTED TO REMAIN ISOLATED AND CONFINED TO ACROSS
THE MOUNTAIN AREAS AND ACROSS THE LOWER TRANS PECOS FROM SUNDAY
THROUGH TUESDAY AS RIDGE ALOFT DOMINATES.  AS THE UPPER RIDGE
CONTINUES TO RETROGRADE WESTWARD AND HEIGHTS ALOFT LOWER...FORECAST
PACKAGE WILL GRADUALLY EXPAND SLIGHT CHANCE POPS EASTWARD TO INCLUDE
MOST OF THE PLAINS AND PERMIAN BASIN BY MID-WEEK.  THE MORE FAVORED
AREAS FOR THUNDERSTORMS FROM WEDNESDAY INTO THE WEEKEND WILL BE
ACROSS THE EASTERN PERMIAN BASIN AND TRANS PECOS AREAS DURING THE
LATE AFTERNOON HOURS...WITH SOME TRANSITION INTO THE NORTHERN AND
NORTHEASTERN PERMIAN BASIN AROUND SUNSET AS A FEW THUNDERSTORM CELLS
PROGRESS SOUTHWARD FROM THE SOUTH PLAINS INTO THE PERMIAN BASIN.

&&

.PRELIMINARY POINT TEMPS/POPS...
BIG SPRING TX              72  95  72  92  /  10   0  10   0
CARLSBAD NM                71  95  70  96  /  20   0  10   0
DRYDEN TX                  73  95  73  95  /  20   0  10  10
FORT STOCKTON TX           73  93  71  94  /  20   0  10   0
GUADALUPE PASS TX          68  91  66  90  /  20  10  10  10
HOBBS NM                   71  95  70  94  /  20   0  10   0
MARFA TX                   59  86  58  87  /  20  10  10  10
MIDLAND INTL AIRPORT TX    72  94  72  93  /  10   0  10   0
ODESSA TX                  73  94  72  94  /  10   0  10   0
WINK TX                    74  99  73  98  /  10   0  10   0

&&

.MAF WATCHES/WARNINGS/ADVISORIES...
NM...NONE.
TX...NONE.
&&

12/13/01

Hazardous weather outlook, Aug 25, 1:12 PM CDT, 1 hour 28 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MIDLAND/ODESSA TX
112 PM CDT SAT AUG 25 2007

NMZ027>029-033-034-TXZ045>048-050>053-057>063-067>070-074-075-
079>082-258-261815-
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-
112 PM CDT SAT AUG 25 2007 /1212 PM MDT SAT AUG 25 2007/

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

.DAY ONE...THIS AFTERNOON AND TONIGHT

ISOLATED SHOWERS AND THUNDERSTORMS ARE EXPECTED TODAY ACROSS
PORTIONS OF WEST TEXAS AND SOUTHEAST NEW MEXICO...ALONG AND WEST
OF A LAMESA...TO ODESSA...TO SANDERSON LINE. DO NOT EXPECT
CONVECTIVE DEVELOPMENTS TO BE WIDESPREAD HOWEVER...WITH MODEST
INSTABILITY IN PLACE...SOME STORMS COULD BE BECOME STRONG TO
SEVERE WITH HAIL AND STRONG WINDS AS PRIMARY THREATS.

EXPECT DEVELOPMENTS TO BEGIN ALONG THE HIGHER MOUNTAIN ELEVATIONS
WHERE DAYTIME HEATING WILL BE MAXIMIZED...AND THEN BEGIN TO AFFECT
THE ADJACENT PLAINS AREAS LATER IN THE AFTERNOON. ALSO EXPECT SOME
DEVELOPMENTS TO DRIFT SOUTHWARD FROM THE SOUTHERN PLAINS INTO THE
NORTHERN AND NORTHEASTERN PERMIAN BASIN AROUND SUNSET THIS EVENING.

EXPECT COVERAGE AND INTENSITY TO DECREASE SHORTLY AFTER SUNSET.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

ISOLATED SHOWERS AND THUNDERSTORMS WILL CONTINUE TO BE POSSIBLE
ACROSS THE WEST TEXAS AND SOUTHEAST NEW MEXICO MOUNTAINS AND THE
LOWER TRANS PECOS REGION THROUGHOUT THE WEEKEND AND EARLY INTO
THE WORK WEEK. LATER IN THE WEEK...THE EASTERN PERMIAN BASIN AND
TRANS PECOS REGIONS WILL BE MORE FAVORED.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED...HOWEVER WEATHER CONDITIONS
SHOULD BE MONITORED CLOSELY FOR RAPID CHANGES.

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

13

In the hours before

Special weather statement, Aug 25, 12:52 PM CDT, 1 hour 48 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIDLAND/ODESSA TX
1252 PM CDT SAT AUG 25 2007

TXZ074-080-251845-
DAVIS/APACHE MOUNTAINS AREA-MARFA PLATEAU-
1252 PM CDT SAT AUG 25 2007

...SIGNIFICANT WEATHER ALERT...

THIS SIGNIFICANT WEATHER ALERT IS FOR CENTRAL JEFF DAVIS COUNTY.

A STRONG THUNDERSTORM WAS LOCATED ALONG STATE HIGHWAY 166...15 MILES
WEST OF MCDONALD OBSERVATORY...MOVING SOUTHWEST AT 5 MPH.

STORM INTENSITY IS INCREASING AND SEVERE WEATHER MAY DEVELOP RAPIDLY.

IN ADDITION VERY HEAVY RAINFALL WILL OCCUR WITH THIS STORM.

PEOPLE IN CENTRAL JEFF DAVIS COUNTY SHOULD MONITOR THE WEATHER
SITUATION CLOSELY. LISTEN FOR WARNINGS AND REMAIN ALERT FOR
THREATENING WEATHER CONDITIONS.

Special weather statement, Aug 25, 1:36 PM CDT, 1 hour 4 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIDLAND/ODESSA TX
136 PM CDT SAT AUG 25 2007

TXZ080-251930-
MARFA PLATEAU-
136 PM CDT SAT AUG 25 2007

...SIGNIFICANT WEATHER ALERT...

THIS SIGNIFICANT WEATHER ALERT IS FOR NORTH CENTRAL PRESIDIO COUNTY.

A STRONG THUNDERSTORM WAS LOCATED 3 MILES NORTH OF RYAN AT 136 PM
CDT...MOVING SOUTHWEST AT 5 MPH.

THIS STORM WILL IMPACT HIGHWAY 90 NEAR RYAN.

STORM INTENSITY IS INCREASING AND SEVERE WEATHER MAY DEVELOP RAPIDLY.

PEOPLE IN NORTH CENTRAL PRESIDIO COUNTY SHOULD MONITOR THE WEATHER
SITUATION CLOSELY. LISTEN FOR WARNINGS AND REMAIN ALERT FOR
THREATENING WEATHER CONDITIONS.

SEEK SHELTER IF THUNDERSTORMS APPROACH YOUR LOCATION.

Local storm report, Aug 25, 2:27 PM CDT, 13 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MIDLAND/ODESSA TX
227 PM CDT SAT AUG 25 2007

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0209 PM     HAIL             11 W FORT DAVIS         30.60N 104.09W
08/25/2007  E0.75 INCH       JEFF DAVIS         TX   PUBLIC

            PENNY SIZED HAIL REPORTED BY PUBLIC.

&&

MUELLER

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 24, 7:32 PM CDT	Severe Thunderstorm Warning	MAF	Andrews	58 min
Aug 24, 8:59 PM CDT	Flash Flood Warning	MAF	Reeves	4 hr
Aug 25, 1:04 PM CDT	Severe Thunderstorm Warning	MAF	Jeff Davis	41 min
Aug 25, 1:42 PM CDT	Severe Thunderstorm Warning	MAF	Presidio	63 min
Aug 25, 2:08 PM CDT	Severe Thunderstorm Warning	MAF	Jeff Davis	67 min
Aug 25, 3:15 PM CDT	Severe Thunderstorm Warning	MAF	Jeff Davis	45 min

Nearby

Severe Thunderstorm Warnings in Texas, 2007 Every severe thunderstorm warning in 2007

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.