Area Forecast Discussion
Issued by NWS Shreveport, LA

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FXUS64 KSHV 211800 AAA
AFDSHV

Area Forecast Discussion...UPDATED
National Weather Service Shreveport LA
1200 PM CST Tue Nov 21 2017

.AVIATION...
Varying MVFR cigs have developed this morning across much of E TX
and have begun to move into Wrn LA attm, and may briefly affect
portions of extreme SW AR (including TXK) through mid afternoon
before low level winds quickly veer Nrly ahead of a cold front
that will enter the region. Sct areas of -RA have also developed
over portions of Toledo Bend Country into Wcntrl LA, with this
-RA expected to gradually shift more E across Ncntrl LA S of I-20
through the afternoon. Given this, have removed VCSH mention for
the E TX/SHV terminals although a few sprinkles can not be ruled
out here, but vsby restrictions are not expected. The MVFR cigs
should gradually lift later this afternoon and especially this
evening as drier air begins to spill S with the cold fropa.
However, low VFR cigs should persist through mid to late evening
before these cigs begin to gradually scatter out from N to S, with
the I-20 terminals clearing between 06-09Z. The elevated cigs
will also clear with the attendant upper trough passage late, with
SKC expected areawide through the end of the 18Z TAF period
before some thin cirrus begins to spill S into NE TX/SE OK/SW AR
later in the day. SSE winds 4-8kts this afternoon will become N
and increase to 6-10kts with the fropa tonight. /15/

&&

.PREV DISCUSSION... /issued 1040 AM CST Tue Nov 21 2017/

DISCUSSION...
Patchy very lgt rain continuing to move nwd along TX/LA state line
which will warrant the 20 pops to I-20 this aftn. Increasing
clouds with multiple cloud layers will hold heating down to 5 to
10 degrees from 10 am readings, with aftn highs mainly ranging
through the 60s. No update needed but will rerun zone fcst to
clean up wording as rain chances were not included durg the mrng
period. /07/

&&

.PRELIMINARY POINT TEMPS/POPS...
SHV  64  45  59  33 /  20  20   0   0
MLU  66  43  56  32 /  20  10   0   0
DEQ  65  37  56  28 /   0   0   0   0
TXK  65  40  55  33 /  10  10   0   0
ELD  64  40  55  30 /  10  10   0   0
TYR  69  44  58  35 /  20  20   0   0
GGG  66  44  59  33 /  20  20   0   0
LFK  68  49  63  35 /  30  20   0   0

&&

.SHV WATCHES/WARNINGS/ADVISORIES...
AR...None.
LA...None.
OK...None.
TX...None.
&&

$$

15/07


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