Special Weather Statement, NWS Amarillo, TX

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE AMARILLO TX
637 PM CST SAT NOV 10 2012

.UPDATE...

UPDATED THE FORECAST TO REMOVE ALL HIGH WIND WARNING AND WIND
ADVISORY MENTION AS GRADIENT WINDS ARE QUICKLY DYING DOWN. A FEW
STRONG STORMS WILL CONTINUE OVER THE FAR ERN PANHANDLES THE NEXT FEW
HOURS. REST OF FCST IS ON TRACK. UPDATED GRIDS/ZONES/HWO AND
EXPIRATION OF NPW ARE ALL OUT.

SIMPSON
&&

.PREV DISCUSSION... /ISSUED 521 PM CST SAT NOV 10 2012/

AVIATION...
FOR THE 00Z TAFS...WINDS SHOULD DIMINISH QUICKLY OVER THE NEXT 2
HOURS. AFTER SUNSET...EXPECT A SHIFT TO WESTERLY WINDS BEFORE
06Z...THEN ANOTHER SHIFT TO NORTHWESTERLY WINDS BETWEEN 09 AND 15Z.
WITH THE DIMINISHING WINDS...EXPECT VISIBILITY RESTRICTIONS DUE TO
DUST TO ALSO DIMINISH...LEAVING VFR CONDITIONS THROUGH THE TAF
PERIOD. THERE ARE SOME ISOLATED SHRA AND TSRA IN THE EASTERN
PANHANDLES...BUT THESE WILL STAY WELL EAST OF THE TAF SITES.

JOHNSON

PREV DISCUSSION... /ISSUED 213 PM CST SAT NOV 10 2012/

DISCUSSION...
WINDY TO VERY WINDY CONDITIONS WILL BEGIN TO SUBSIDE BY SUNSET THIS
EVENING AS THE PRESSURE GRADIENT BEGINS TO RELAX. COLD FRONT TO PUSH
THROUGH THE PANHANDLES LATE TONIGHT AND EARLY SUNDAY MORNING WITH
CHANCES FOR CONVECTION ACROSS THE EASTERN SECTIONS OF THE FORECAST
AREA TONIGHT. A FEW OF THE STORMS COULD BECOME STRONG TO SEVERE THIS
EVENING WITH MAINLY HAIL AND HIGH WINDS THE PRIMARY THREATS.
OTHERWISE...DRIER AIR WILL ADVECT INTO THE PANHANDLES SUNDAY AS AN
UPPER TROUGH PUSHES ACROSS SUNDAY INTO SUNDAY NIGHT. DRY NORTHWESTERLY
UPPER FLOW EARLY NEXT WEEK AND 1035 TO 1045 MB SURFACE HIGH BUILDING
DOWN FROM THE NORTHWEST INTO THE PANHANDLES EARLY NEXT WEEK WILL
BRING MUCH BELOW NORMAL CONDITIONS TO THE FORECAST AREA WITH
GENERALLY CLEAR SKIES. TEMPERATURES EXPECTED TO REBOUND BY THE MIDDLE
OF NEXT WEEK AS LEE SIDE SURFACE TROUGH DEVELOPS TUESDAY AFTERNOON
WITH ZONAL FLOW ALOFT WEDNESDAY THROUGH THE END OF THE WEEK. NO
PRECIPITATION EXPECTED SUNDAY THROUGH THE END OF NEXT WEEK.

SCHNEIDER

FIRE WEATHER...
HUMIDITY VALUES THIS AFTERNOON REMAINING ABOVE 20 PERCENT DESPITE 20
FOOT WIND SPEEDS OF 30 TO 40 MPH OR HIGHER WITH HIGHER GUSTS. ELEVATED
FIRE WEATHER CONDITIONS SHOULD CONTINUE UNTIL SUNSET. COOLER CONDITIONS
BEHIND A COLD FRONT LATER TONIGHT AND SUNDAY MORNING WITH POSSIBLE
ELEVATED FIRE WEATHER CONDITIONS ACROSS THE SOUTHWEST TEXAS AND
PORTIONS OF THE SOUTH CENTRAL TEXAS PANHANDLE SUNDAY AS 20 FOOT WIND
SPEEDS APPROACH 15 TO 20 MPH AND MINIMUM RELATIVE HUMIDITIES FALL TO
AROUND 15 TO 20 PERCENT. THIS APPEARS TO BE MARGINAL AT THIS TIME AND
CONFIDENCE LOW. MUCH LIGHTER WIND SPEEDS ON MONDAY WILL PRECLUDE ANY
ELEVATED OR CRITICAL FIRE WEATHER CONDITIONS...HOWEVER TUESDAY COULD
SEE A RETURN TO ELEVATED FIRE WEATHER AS 20 FOOT WIND SPEEDS INCREASE
TO AROUND 15 TO 20 MPH WITH HIGHER GUSTS FROM THE SOUTHWEST AND
MINIMUM AFTERNOON RELATIVE HUMIDITIES TUESDAY FALL TO BETWEEN 10 AND
20 PERCENT ACROSS MOST OF THE PANHANDLES. STILL...CONFIDENCE LOW AT
THIS TIME. NO ELEVATED OR CRITICAL FIRE WEATHER CONDITIONS ARE
EXPECTED NEXT WEDNESDAY THROUGH SATURDAY.

SCHNEIDER

&&

.AMA WATCHES/WARNINGS/ADVISORIES...
TX...NONE.
OK...NONE.

&&

16/09

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE AMARILLO TX
628 PM CST SAT NOV 10 2012

OKZ001>003-TXZ001>020-111200-
CIMARRON-TEXAS-BEAVER-DALLAM-SHERMAN-HANSFORD-OCHILTREE-LIPSCOMB-
HARTLEY-MOORE-HUTCHINSON-ROBERTS-HEMPHILL-OLDHAM-POTTER-CARSON-
GRAY-WHEELER-DEAF SMITH-RANDALL-ARMSTRONG-DONLEY-COLLINGSWORTH-
628 PM CST SAT NOV 10 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE TEXAS AND OKLAHOMA
PANHANDLES.

.DAY ONE...TONIGHT.

SCATTERED THUNDERSTORMS WILL CONTINUE THROUGH THIS EVENING ACROSS
THE FAR EASTERN TEXAS PANHANDLE. SOME STORMS WILL BE STRONG...WITH AN
OUTSIDE CHANCE FOR A SEVERE STORM UNTIL 10 PM. GUSTY WINDS AND HAIL
WILL BE THE MAIN HAZARDS.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED AT THIS TIME.

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AMARILLO TX
605 PM CST SAT NOV 10 2012

TXZ019-020-110030-
COLLINGSWORTH TX-DONLEY TX-
605 PM CST SAT NOV 10 2012

...SIGNIFICANT WEATHER ADVISORY FOR WESTERN COLLINGSWORTH AND DONLEY
COUNTIES UNTIL 630 PM CST...

AT 602 PM CST...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
STRONG THUNDERSTORM 6 MILES WEST OF BRICE...OR 15 MILES SOUTHWEST OF
CLARENDON...MOVING NORTHEAST AT 55 MPH.

HAIL UP TO ONE HALF INCH IN DIAMETER AND WIND GUSTS UP TO 50 MPH ARE
EXPECTED WITH THIS STORM.

* LOCATIONS IMPACTED INCLUDE...
  CLARENDON...          LELIA LAKE...         HOWARDWICK...
  HEDLEY...             GREENBELT LAKE...

IF THREATENING WEATHER APPROACHES YOUR AREA...TAKE SHELTER IN A
STURDY BUILDING.

LAT...LON 3475 10109 3516 10084 3514 10027 3475 10077
TIME...MOT...LOC 0005Z 224DEG 49KT 3476 10096

JOHNSON

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AMARILLO TX
629 PM CST SAT NOV 10 2012

TXZ014-015-019-020-110115-
COLLINGSWORTH TX-DONLEY TX-GRAY TX-WHEELER TX-
629 PM CST SAT NOV 10 2012

...SIGNIFICANT WEATHER ADVISORY FOR WESTERN COLLINGSWORTH...
WHEELER...SOUTHEASTERN GRAY AND EASTERN DONLEY COUNTIES UNTIL 715 PM
CST...

AT 626 PM CST...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 9 MILES NORTH OF
HEDLEY TO 4 MILES SOUTHEAST OF BRICE...MOVING NORTHEAST AT 50 MPH.

HAIL UP TO ONE HALF INCH IN DIAMETER AND WIND GUSTS UP TO 50 MPH ARE
EXPECTED WITH THESE STORMS.

* LOCATIONS IMPACTED INCLUDE...
  SHAMROCK...           WHEELER...            TWITTY...
  SAMNORWOOD...         QUAIL...              MCLEAN...
  LUTIE...              LELIA LAKE...         LELA...
  KELLERVILLE...        HEDLEY...             DOZIER...
  ALANREED...

THIS INCLUDES INTERSTATE 40 BETWEEN MILE MARKERS 135 AND 169.

IF THREATENING WEATHER APPROACHES YOUR AREA...TAKE SHELTER IN A
STURDY BUILDING.

LAT...LON 3536 10065 3557 10036 3558 10001 3476 10028
      3476 10092 3511 10081
TIME...MOT...LOC 0029Z 216DEG 42KT 3502 10064 3472 10081

JOHNSON

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SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AMARILLO TX
801 PM CST SAT NOV 10 2012

TXZ014-015-019-020-110230-
COLLINGSWORTH TX-DONLEY TX-GRAY TX-WHEELER TX-
801 PM CST SAT NOV 10 2012

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN COLLINGSWORTH...
WESTERN WHEELER...SOUTHEASTERN GRAY AND DONLEY COUNTIES UNTIL 830 PM
CST...

AT 800 PM CST...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 3 MILES SOUTH OF
KELLERVILLE TO 8 MILES SOUTHWEST OF CLARENDON...MOVING NORTHEAST AT
70 MPH.

HAIL UP TO THE SIZE OF PENNIES AND WIND GUSTS UP TO 50 MPH ARE
EXPECTED WITH THESE STORMS.

* LOCATIONS IMPACTED INCLUDE...
  CLARENDON...          WHEELER...            NEW MOBEETIE...
  MCLEAN...             LELIA LAKE...         LELA...
  KELLERVILLE...        HOWARDWICK...         HEDLEY...
  GREENBELT LAKE...     BRISCOE...            ALLISON...
  ALANREED...           MOBEETIE...

THIS INCLUDES INTERSTATE 40 BETWEEN MILE MARKERS 130 AND 157.

IF THREATENING WEATHER APPROACHES YOUR AREA...TAKE SHELTER IN A
STURDY BUILDING.

LAT...LON 3478 10063 3476 10110 3530 10077 3562 10038
      3561 10008
TIME...MOT...LOC 0201Z 217DEG 63KT 3534 10050 3486 10097

JOHNSON