Severe Thunderstorm Warning 87, NWS Midland/Odessa, TX

012 
WWUS54 KMAF 081931
SVSMAF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIDLAND/ODESSA TX
231 PM CDT SAT OCT 8 2011

TXC443-082015-
/O.CON.KMAF.SV.W.0087.000000T0000Z-111008T2015Z/
TERRELL TX-
231 PM CDT SAT OCT 8 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 315 PM CDT
FOR CENTRAL TERRELL COUNTY...

AT 225 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
DETECT A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS
LOCATED NEAR DRYDEN...MOVING EAST AT 20 MPH.

SOME LOCATIONS AFFECTED BY THE SEVERE THUNDERSTORM INCLUDE...CENTRAL
TERRELL COUNTY AND EAST CENTRAL TERRELL COUNTY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPORT SEVERE WEATHER... HAVE THE NEAREST LAW ENFORCEMENT AGENCY
RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN
MIDLAND.

&&

LAT...LON 2999 10227 3036 10187 3029 10175 3011 10175
      2995 10220
TIME...MOT...LOC 1932Z 249DEG 16KT 3006 10201

$$

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MIDLAND/ODESSA TX
1243 PM CDT SAT OCT 8 2011

.DISCUSSION...
SEE 18Z AVIATION DISCUSSION BELOW.

&&

.AVIATION...
A LINE OF SHOWERS AND THUNDERSTORMS WILL CONTINUE JUST EAST OF MAF
THIS AFTERNOON. THERE IS SOME UNCERTAINTY IN THE WIND DIRECTION
BUT WINDS SHOULD REMAIN OUT OF THE NORTH BEFORE TRANSITIONING TO
THE SOUTHEAST...THEN SOUTH LATE THIS EVENING. HOWEVER...WINDS WILL
CHANGE BACK TO THE NORTH SUNDAY AS A COLD FRONT MOVES THROUGH THE
AREA. CHANCES OF SHOWERS AND THUNDERSTORMS WILL INCREASE
BEGINNING AT 00Z FOR MOST TAF SITES. THUNDERSTORMS WILL LIKELY
BECOME SCATTERED AROUND 06Z AND CONTINUE INTO THE MORNING HOURS.
HAVE INCLUDED VCTS DUE TO UNCERTAINTY OF A THUNDERSTORM OCCURRING
DIRECTLY OVER A GIVEN TAF LOCATION.

&&

.PREV DISCUSSION... /ISSUED 1059 AM CDT SAT OCT 8 2011/

UPDATE...
UPDATE TO LOWER POPS OVER THE WESTERN CWA.

DISCUSSION...
SHOWERS AND THUNDERSTORMS CONTINUED TO DEVELOP ALONG A SURFACE
TROUGH/FRONTAL BOUNDARY STRETCHING FROM THE WESTERN LOW ROLLING
PLAINS SOUTH/SOUTHWESTWARD TO THE STOCKTON PLATEAU.  THIS CONVECTION
WAS DEVELOPING IN THE DIFFLUENT FLOW ALOFT OVER THE REGION AHEAD OF
A LARGE CUTOFF LOW MOVING INTO SOUTHERN COLORADO.  A STRONG
SHORTWAVE TROUGH WHICH SPARKED THE CONVECTION EARLIER THIS MORNING
WAS EJECTING NORTHEASTWARD INTO THE CENTRAL PLAINS WITH A PRONOUNCED
AREA OF SUBSIDENCE INDICATED OVER EASTERN NEW MEXICO IN IT/S WAKE.
THINK THE LINE OF CURRENT CONVECTION WILL MAKE AN INEXORABLE...BUT
SLOW...MOVE TO THE EAST WITH TIME.  SINCE LITTLE SHOWER OR
THUNDERSTORM ACTIVITY IS EXPECTED TO DEVELOP IN THE SUBSIDENT REGION
OVER THE WESTERN CWA THIS MORNING...WILL LOWER POPS IN THESE AREAS.

THE HEAVIER SHOWERS AND STORMS WILL CREEP EASTWARD WITH TIME AS THE
BEST LIFT SPREADS NORTHEASTWARD...SO MUCH OF DAWSON COUNTY...ECTOR
AND CRANE COUNTIES MAY NOT SEE MUCH RAINFALL OVER THE NEXT SEVERAL
HOURS.  HOWEVER...HEIGHT/SURFACE PRESSURE FALLS WILL INCREASE THIS
AFTERNOON AS ANOTHER STRONG SHORTWAVE TROUGH BEGINS TO ROUND THE
BASE OF THE LARGE UA TROUGH TO THE WEST.  SURFACE WINDS WILL BACK
AND BEGIN TO PUSH THE LOW LEVEL BOUNDARY WEST.  WHETHER THE BOUNDARY
MOVES FAR ENOUGH WEST...AND LIFT INCREASES ENOUGH ALONG IT FOR
ADDITIONAL SHOWERS AND STORMS IN THESE AREAS BEFORE 09/00Z REMAINS
TO BE SEEN.  SINCE RAIN CHANCES WILL DEFINITELY INCREASE AFTER
09/00Z...WILL LEAVE THESE AREAS IN THE FLASH FLOOD WATCH.  ALSO...
WILL LEAVE A SLIGHT CHANCE OF SHOWERS AND STORMS GOING IN THE
DAVIS/GLASS MOUNTAINS THIS AFTERNOON WHERE SOME INSTABILITY WILL
REMAIN...AND LIFT MOVING IN FROM THE WEST WILL AFFECT FIRST.

&&

.MAF WATCHES/WARNINGS/ADVISORIES...
NM...NONE.
TX...FLASH FLOOD WATCH THROUGH SUNDAY EVENING FOR THE FOLLOWING
     ZONES... BORDEN...CRANE...DAWSON...ECTOR...GLASSCOCK...
     HOWARD...MARTIN...MIDLAND...MITCHELL...REAGAN...SCURRY...
     UPTON.

&&

99

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MIDLAND/ODESSA TX
158 PM CDT SAT OCT 8 2011

NMZ027>029-033-034-TXZ045>048-050>053-057>063-067>070-074-075-
079>082-258-091900-
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-
158 PM CDT SAT OCT 8 2011 /1258 PM MDT SAT OCT 8 2011/

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

.DAY ONE...THIS AFTERNOON AND TONIGHT

THUNDERSTORMS ARE LIKELY THIS AFTERNOON AND TONIGHT OVER THE WESTERN
LOW ROLLING PLAINS AND THE EASTERN PERMIAN BASIN.  THE MAIN CONCERN
WITH THESE STORMS WILL BE LOCALLY HEAVY RAIN WHICH COULD LEAD TO
FLASH FLOODING.  A FLASH FLOOD WATCH IS IN EFFECT THIS AFTERNOON
AND TONIGHT FOR THE WESTERN LOW ROLLING PLAINS AND MUCH OF THE
PERMIAN BASIN.

WIDELY SCATTERED THUNDERSTORMS ARE POSSIBLE OVER THE DAVIS AND GLASS
MOUNTAINS...IN ADDITION TO THE STOCKTON PLATEAU AND LOWER TRANS
PECOS THIS AFTERNOON AND EVENING.  A FEW OF THESE STORMS COULD
BECOME STRONG ENOUGH TO PRODUCE STRONG WIND GUSTS OVER 55 MPH...
HAIL...FREQUENT CLOUD TO GROUND LIGHTNING STRIKES AND LOCALLY HEAVY
RAINFALL.  SHOWERS AND STORMS ARE EXPECTED TO BECOME MORE WIDESPREAD
OVERNIGHT OVER MUCH OF THE AREA.  ALTHOUGH SEVERE THUNDERSTORMS ARE
NOT EXPECTED...A FEW OF THE STRONGER STORMS COULD PRODUCE GUSTY
WINDS OVER 55 MPH...HAIL...OCCASIONAL LIGHTNING STRIKES AND HEAVY
RAINFALL.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

THUNDERSTORMS ARE AGAIN LIKELY SUNDAY...WITH DECREASING CHANCES
SUNDAY AFTERNOON OR NIGHT.  HEAVY RAIN WILL BE THE MAIN CONCERN
WITH THESE STORMS.  A FLASH FLOOD WATCH IS IN EFFECT SUNDAY FOR
THE WESTERN LOW ROLLING PLAINS AND MUCH OF THE PERMIAN BASIN.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED.

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

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIDLAND/ODESSA TX
114 PM CDT SAT OCT 8 2011

TXZ075-081-081915-
PECOS-BIG BEND AREA-
114 PM CDT SAT OCT 8 2011

...SIGNIFICANT WEATHER ADVISORY FOR STRONG THUNDERSTORMS AFFECTING
NORTH CENTRAL BREWSTER AND SOUTH CENTRAL PECOS COUNTIES UNTIL 215 PM
CDT...

A STRONG THUNDERSTORM WAS LOCATED OVER NORTH CENTRAL BREWSTER COUNTY
AT 113 PM CDT...MOVING NORTH AT 10 MPH. ALTHOUGH THIS STORMS WAS OVER
RURAL AREAS...IT COULD AFFECT PORTIONS OF US HIGHWAY 90...ABOUT 20
MILES EAST OF MARATHON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO HAIL AND STRONG WINDS OVER 50 MPH...DEADLY CLOUD TO
GROUND LIGHTNING CAN BE EXPECTED.  REMEMBER...IF YOU CAN HEAR
THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING.  SEEK SAFE
SHELTER NOW.

&&