Severe Thunderstorm Warning 309, NWS Shreveport, LA

888 
WWUS54 KSHV 012052
SVSSHV

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
352 PM CDT MON AUG 1 2011

ARC061-133-012130-
/O.CON.KSHV.SV.W.0309.000000T0000Z-110801T2130Z/
HOWARD AR-SEVIER AR-
352 PM CDT MON AUG 1 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM CDT
FOR SEVIER AND HOWARD COUNTIES...

AT 352 PM CDT...A SEVERE THUNDERSTORM WAS REPORTED CAPABLE OF
PRODUCING DESTRUCTIVE WINDS IN EXCESS OF 70 MPH.  THIS STORM WAS
LOCATED NEAR LEBANON...OR 7 MILES WEST OF DIERKS...MOVING SOUTHWEST
AT 15 MPH. THIS STORM IS DIRECTLY OVER DIERKS LAKE AT THIS TIME. 

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
GILLHAM...GENEVA...WEST OTIS...WEST LINE...HORATIO AND DE QUEEN

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF ON OR NEAR DIERKS LAKE GET OUT OF THE WATER AND MOVE INDOORS OR 
INSIDE A VEHICLE. REMEMBER...LIGHTNING CAN STRIKE OUT TO 15 MILES 
FROM THE PARENT THUNDERSTORM. IF YOU CAN HEAR THUNDER...YOU ARE
CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. MOVE TO SAFE SHELTER NOW.
DON'T BE CAUGHT ON THE WATER IN A THUNDERSTORM!

&&

LAT...LON 3409 9401 3387 9437 3388 9436 3390 9439
      3394 9439 3393 9445 3395 9448 3413 9447
      3420 9434 3420 9425 3425 9425 3428 9413
TIME...MOT...LOC 2052Z 055DEG 12KT 3410 9416

$$

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AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SHREVEPORT LA
305 PM CDT MON AUG 1 2011

.DISCUSSION...
THE HEAT CONTINUES TO BE THE STORY OF THE WEEK. CURRENT TEMP
READINGS RANGE FROM 101 TO 107...WITH AT LEAST A COUPLE MORE HOURS
OF HEATING LEFT TO GO. THIS WILL BE THE CASE AT LEAST THROUGH
WED AND MOST LIKELY THU...AS THE UPPER RIDGE DRIFTS DIRECTLY
OVERHEAD. MAV/MEX CONTINUE TO BE OUT TO LUNCH ON THIS HEAT...WHILE
THE MET HAS BEEN CLOSER...BUT STILL TOO COOL. PERSISTENCE SEEMS TO
BE THE BEST METHOD FOR NOW. HEAT ADVISORY FOR WED HAS BEEN
UPGRADED TO AN EXCESSIVE HEAT WARNING...AS HEAT INDICES ARE
EXPECTED TO REACH OR EXCEED 110 DEGREES AGAIN.

TEMPS LOOK TO EASE JUST A BIT MOVING INTO THE WEEKEND...AS A TROF
BEGINS TO DEVELOP ACROSS THE ERN U.S. THIS WILL FORCE THE RIDGE TO
DRIFT BACK TO THE W AND POSSIBLY ALLOW TEMPS TO ONLY REACH 99-106...
INSTEAD OF THE 105-110 THAT IS EXPECTED OVER THE NEXT COUPLE OF
DAYS. NEEDLESS TO SAY...SOME TYPE OF HEAT-RELATED ADVISORY OR
WARNING WILL LIKELY REMAIN IN EFFECT FOR SEVERAL MORE DAYS.

RAIN CHANCES WILL BE SPARSE OVER THE NEXT SEVERAL DAYS. FOR THE
WEEKEND...ERN PORTIONS OF THE REGION MAY SEE A SLIGHTLY INCREASED
CHANCE FOR RAIN AS THE RIDGE MOVES W AND A WEAK BOUNDARY DIPS INTO
THE REGION. DESPITE THE FCST WEAKNESS IN THE RIDGE...MODELS STILL
SHOW NO SIGNS OF ANY SIGNIFICANT RAINFALL THIS PD.

&&

.AVIATION...
PRETTY EXTENSIVE CU FIELD ACROSS THE REGION AS OF 2 PM. CU RANGING
WITH BASES ANYWHERE FROM 6-9KFT. BEGINNING TO SEE SOME VERY ISOLATED
SHOWERS AND THUNDERSTORMS DEVELOPING ACROSS THE REGION AND WILL
CONTINUE TO HANDLE THIS WITH AMENDMENTS IF ANYTHING NEARS A TERMINAL
LOCATION. EXPECTING ACTIVITY TO BEGIN DISSIPATING AFTER 8-9 PM THIS
EVENING WITH MOSTLY CLEAR SKIES OVERNIGHT. A REPEAT OF TODAY IS
EXPECTED ACROSS THE REGION ON TUESDAY WITH AFTERNOON CU FIELD
DEVELOPING BETWEEN 12 NOON AND 1 PM. OTHERWISE...VFR CONDITIONS WILL
PREVAIL ACROSS THE REGION OVER THE NEXT 24 HOURS. /13/

&&

.PRELIMINARY POINT TEMPS/POPS...
SHV 106  80 108  81 107 /  20  20  10  10  10
MLU 103  78 106  80 105 /  20  20  10  10  10
DEQ 104  78 108  79 109 /  20  20  10  10  10
TXK 104  79 108  80 109 /  20  20  10  10  10
ELD 102  78 106  79 107 /  20  20  10  10  10
TYR 106  82 109  83 109 /  20  20  10  10  10
GGG 105  82 108  82 108 /  20  20  10  10  10
LFK 103  78 106  80 106 /  20  20  10  10  10

&&

.SHV WATCHES/WARNINGS/ADVISORIES...
AR...EXCESSIVE HEAT WARNING UNTIL 7 PM CDT TUESDAY FOR THE FOLLOWING
     ZONES: ARZ050-051-059>061-070>073.

LA...EXCESSIVE HEAT WARNING UNTIL 7 PM CDT TUESDAY FOR THE FOLLOWING
     ZONES: LAZ001>006-010>014-017>022.

OK...EXCESSIVE HEAT WARNING UNTIL 7 PM CDT TUESDAY FOR THE FOLLOWING
     ZONES: OKZ077.

TX...EXCESSIVE HEAT WARNING UNTIL 7 PM CDT TUESDAY FOR THE FOLLOWING
     ZONES: TXZ096-097-108>112-124>126-136>138-149>153-165>167.

&&

12/13

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SHREVEPORT LA
1154 AM CDT MON AUG 1 2011

ARZ050-051-059>061-070>073-LAZ001>006-010>014-017>022-OKZ077-
TXZ096-097-108>112-124>126-136>138-149>153-165>167-021200-
SEVIER-HOWARD-LITTLE RIVER-HEMPSTEAD-NEVADA-MILLER-LAFAYETTE-
COLUMBIA-UNION AR-CADDO-BOSSIER-WEBSTER-CLAIBORNE-LINCOLN-
UNION LA-DE SOTO-RED RIVER-BIENVILLE-JACKSON-OUACHITA-SABINE LA-
NATCHITOCHES-WINN-GRANT-CALDWELL-LA SALLE-MCCURTAIN-BOWIE-
FRANKLIN-TITUS-CAMP-MORRIS-CASS-WOOD-UPSHUR-MARION-SMITH-GREGG-
HARRISON-CHEROKEE-RUSK-PANOLA-NACOGDOCHES-SHELBY-ANGELINA-
SAN AUGUSTINE-SABINE TX-
1154 AM CDT MON AUG 1 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTH CENTRAL
ARKANSAS...SOUTHWEST ARKANSAS...NORTH CENTRAL LOUISIANA...
NORTHWEST LOUISIANA...SOUTHEAST OKLAHOMA...EAST TEXAS AND
NORTHEAST TEXAS.

.DAY ONE...THIS AFTERNOON AND TONIGHT...

AN EXCESSIVE HEAT WARNING IS IN EFFECT FOR TODAY. TEMPERATURES
WILL RANGE FROM 102 TO 108 DEGREES...WITH HEAT INDEX VALUES
REACHING INTO THE 110 TO 115 DEGREE RANGE. PRECAUTIONS TO PROTECT
AGAINST THE HEAT WILL BE NEEDED TODAY FOR EXTENDED TIME SPENT
OUTDOORS...OR IN AN INSUFFICIENTLY COOLED BUILDING.

IN ADDITION...ISOLATED TO SCATTERED THUNDERSTORMS ARE POSSIBLE
THIS AFTERNOON AND EVENING...AS A WEAK UPPER DISTURBANCE PUSHES
SOUTH ACROSS THE REGION. BRIEF HEAVY RAIN...GUSTY WINDS...AND
FREQUENT LIGHTNING WILL ACCOMPANY ANY STRONG STORMS.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY...

OTHER THAN LATE DAY ISOLATED THUNDERSTORMS FOR MONDAY...LITTLE IF
ANY RAIN WILL OCCUR THIS WEEK AS THE UPPER RIDGE MOVES BACK OVER
THE FOUR STATE REGION. AS A RESULT...HIGH TEMPERATURES WILL CONTINUE
TO SOAR...POSSIBLY EVEN REACHING INTO THE 106 TO 110 DEGREE RANGE
FOR MOST OF THE REGION. PRECAUTIONS TO PROTECT AGAINST THE HEAT
WILL BE NEEDED THIS WEEK.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED THIS AFTERNOON OR TONIGHT.

12