Area Forecast Discussion
Issued by NWS Shreveport, LA

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000
FXUS64 KSHV 051743
AFDSHV

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SHREVEPORT LA
1143 AM CST THU MAR 5 2015

.AVIATION...
BACK EDGE OF MVFR DECK STILL NEAR KLFK...TO KMLU WITH SKC OR FEW
STRATOCU FOR THE BALANCE OF THE DAY. SFC WINDS ARE BRISK WITH N/NE
10-20KTS SLACKING BY SUNSET...THEN VRB OR NE AROUND 5 KTS ON INTO
FRIDAY. ATTM...CLIMB WINDS ARE NE 20-40KTS TO NEAR 5KFT...THEN BACK
TO NW/W WITH INCREASING SPEED INTO THE MID LEVELS WITH SW FLOW
ABOVE FL120 AND 120KTS BY FL260 ON UP. OUTLOOK VFR SAT/SHWRS SUN.

&&

.PREV DISCUSSION... /ISSUED 1127 AM CST THU MAR 5 2015/

DISCUSSION...
THE LAST OF THE IP/-SN MIX CONTINUES TO WANE LATE THIS MORNING
ACROSS DEEP E TX/THE SRN SECTIONS OF NCNTRL LA...AS DRIER AIR
ALOFT AND AT THE SFC CONTINUES TO SPREAD E AND S ACROSS THE AREA.
THIS PRECIP SHOULD END OVER THE SRN ZONES BY 18Z...THUS HAVE
ALREADY CANCELLED THE WINTER STORM WARNING AND ADVISORIES FOR ALL
BUT PORTIONS OF DEEP E TX/SRN SECTIONS OF NCNTRL LA. VISIBLE
SATELLITE IMAGERY REVEALS A CONSIDERABLE SNOW/ICEPACK ALONG/N OF
THE I-30 CORRIDOR OF NE TX/SE OK/MUCH OF SW AR. THIS SHOULD HELP
HOLD TEMPS DOWN THIS AFTERNOON OVER THESE AREAS...BUT STILL SHOULD
SEE AN EXTENDED PERIOD OF TIME ABOVE FREEZING...THUS HELPING TO
MELT THE SNOW AND ICE. A STRONG PRESSURE GRADIENT PERSISTS ACROSS
E TX/N LA ALONG AND S OF I-20...AHEAD OF ARCTIC SFC RIDGING
BUILDING S INTO THE AREA. HAVE TRIMMED BACK SLIGHTLY ON THE
CURRENT LAKE WIND ADVISORY PER CURRENT TRENDS...WITH WINDS
EXPECTED TO GRADUALLY DIMINISH THROUGH THE AFTERNOON. THE
WINDS/CLOUD COVER WILL ALSO INHIBIT SFC HEATING OVER NCNTRL LA AS
WELL...THUS HAVE TAPERED BACK MAX TEMPS SLIGHTLY IN THE MID-
MORNING UPDATE. HAVE ALSO IMPROVED SKY CONDITIONS PER CURRENT
TRENDS AS WELL.

WILL BE SENDING ANOTHER ZONE UPDATE AFTER 18Z TO ACCOUNT FOR THE
WINTER WEATHER ADVISORY EXPIRATION FOR THE SRN ZONES.

FIRST ZONE UPDATE ALREADY OUT...GRIDS WILL BE AVAILABLE SHORTLY.

15

&&

.PRELIMINARY POINT TEMPS/POPS...
SHV  38  24  46  27  57 /  10  10  10  10  10
MLU  33  21  42  25  53 /  20  10  10  10  10
DEQ  37  19  45  22  55 /   0  10  10  10  10
TXK  36  21  43  25  54 /   0  10  10  10  10
ELD  35  19  41  25  53 /   0  10  10  10  10
TYR  38  24  47  28  55 /   0  10  10  10  10
GGG  38  24  47  28  56 /   0  10  10  10  10
LFK  41  26  51  29  57 /  20  10  10  10  10

&&

.SHV WATCHES/WARNINGS/ADVISORIES...
AR...NONE.
LA...LAKE WIND ADVISORY UNTIL 4 PM CST THIS AFTERNOON FOR THE
     FOLLOWING ZONES: LAZ001>006-010>014-017>022.

     WINTER WEATHER ADVISORY UNTIL NOON CST TODAY FOR THE FOLLOWING
     ZONES: LAZ017>022.

OK...NONE.
TX...LAKE WIND ADVISORY UNTIL 4 PM CST THIS AFTERNOON FOR THE
     FOLLOWING ZONES: TXZ136>138-149>153-165>167.

     WINTER WEATHER ADVISORY UNTIL NOON CST TODAY FOR THE FOLLOWING
     ZONES: TXZ166-167.

&&

$$

24/15






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