Area Forecast Discussion
Issued by NWS Shreveport, LA

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000
FXUS64 KSHV 171123
AFDSHV

Area Forecast Discussion
National Weather Service Shreveport LA
523 AM CST Wed Jan 17 2018

.AVIATION...
VFR conditions are expected througout the TAF cycle. Northerly
winds of 3-8 kts are expected today, but will become light and
variable /and for a few terminals calm conditions/ shortly after
sunset. Winds will commence to veer to a more southerly component
near sunrise tomorrow with speeds of less than 4 kts.

&&

.PREV DISCUSSION... /issued 503 AM CST Wed Jan 17 2018/

DISCUSSION...
Hard Freeze conditions set up overnight with lows mainly in into
the lower teens, and some single digit readings across AR/OK
portions of area. Northerly winds 5 to near 10 mph overnight
bringing wind chills well into the single digits. Thus, both wind
chill advisory and hard freeze advisories continue until 10 am
this morning. Sfc high pressure setting up ovhd this aftn with
aftn highs only slowly rising to near the frzg mark, despite
sunny skies. Near perfect radiation cooling conditions with
clear skies and calm winds will send temps back into the lower to
middle teens areawide, as dewpoints in single digits could even
mix down a few more degrees this aftn. Hard freeze warning has
been reissued areawide for tonight as lgt snow cover will radiate
heat below gfs guidance and to closer to nam guidance values. As
the high pressure begins to migrate east later this week,
temperatures will begin to rebound in warm air advection. Low lvl
clouds will increase Friday into Saturday, with much drier air
aloft. Although some showers are possible, this shallow moisture
only to result in possible very lgt rain. As upper trough
continues to deepen, with upper low centered over central plains,
both mid lvl moisture and low lvl shear to ramp up Sunday. Decent
lapse rates will complete the picture for an increased convective
potential Sunday aftn into Sunday night. Too soon to highlight any
svr potential but this will monitored later this week./07/

&&

.PRELIMINARY POINT TEMPS/POPS...
SHV  32  15  43  26 /   0   0   0  10
MLU  30  15  41  24 /   0   0   0  10
DEQ  33  11  43  23 /   0   0   0  10
TXK  30  14  40  25 /   0   0   0  10
ELD  30  12  42  24 /   0   0   0  10
TYR  32  16  42  28 /   0   0   0  10
GGG  32  15  43  27 /   0   0   0  10
LFK  35  14  44  29 /   0   0   0  10

&&

.SHV WATCHES/WARNINGS/ADVISORIES...
AR...Hard Freeze Warning until 10 AM CST this morning for ARZ050-051-
     059>061-070>073.

     Hard Freeze Warning from 9 PM this evening to 9 AM CST Thursday
     for ARZ050-051-059>061-070>073.

     Wind Chill Advisory until 10 AM CST this morning for ARZ050-051-
     059>061-070>073.

LA...Hard Freeze Warning until 10 AM CST this morning for LAZ001>006-
     010>014-017>022.

     Hard Freeze Warning from 9 PM this evening to 9 AM CST Thursday
     for LAZ001>006-010>014-017>022.

     Wind Chill Advisory until 10 AM CST this morning for LAZ001>006-
     010>014-017>022.

OK...Hard Freeze Warning until 10 AM CST this morning for OKZ077.

     Hard Freeze Warning from 9 PM this evening to 9 AM CST Thursday
     for OKZ077.

     Wind Chill Advisory until 10 AM CST this morning for OKZ077.

TX...Hard Freeze Warning until 10 AM CST this morning for TXZ096-097-
     108>112-124>126-136>138-149>153-165>167.

     Hard Freeze Warning from 9 PM this evening to 9 AM CST Thursday
     for TXZ096-097-108>112-124>126-136>138-149>153-165>167.

     Wind Chill Advisory until 10 AM CST this morning for TXZ096-097-
     108>112-124>126-136>138-149>153-165>167.

&&

$$

29/07



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