Area Forecast Discussion
Issued by NWS Shreveport, LA

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000
FXUS64 KSHV 210542
AFDSHV

Area Forecast Discussion
National Weather Service Shreveport LA
1142 PM CST Mon Feb 20 2017

.AVIATION...
Large area of rain will continue to move across SW AR/N LA
tonight. Mix of flight categories currently being observed, but
will in general continue deteriorating during the overnight hours.
E TX terminals likely to experience VLIFR cigs/vsbys through
sunrise, before drier air begins to filter into the region.
Conditions to begin improving around 20Z from w to e, as most of
the rain moves e of our region. Otherwise, expect swly winds to
veer around to the nw by sunrise with speeds generally between 5
and 10 kts. /12/


&&

.PREV DISCUSSION... /issued 1035 PM CST Mon Feb 20 2017/

DISCUSSION...
As the rain has ended the cooler air and wet grounds will allow
the formation of fog overnight with some areas having
visibility restrictions lower than one mile. As the
fog develops East overnight the visibility will drop to
below one half mile or one quarter of a mile, and therefore
have issued a dense fog advisory for many of the East and
Northeast Texas, Southeast Oklahoma, and adjacent sections of
Southwest Arkansas and Northwest Louisiana zones. Have reduced the
rain chances from West to East overnight and lower the minimum
temperatures by one to two degrees and made associated adjustments
to the dew points, relative humidities and apparent temperatures.
Surface winds have also been adjusted. /06/

&&

.PRELIMINARY POINT TEMPS/POPS...
SHV  54  70  55  79 /  70  10  10   0
MLU  57  68  56  75 / 100  40  20  10
DEQ  53  70  47  77 /  50  10  10   0
TXK  53  70  51  77 /  70  10  10   0
ELD  55  68  54  76 / 100  40  20  10
TYR  53  73  51  79 /  40  10  10   0
GGG  53  72  52  79 /  40  10  10   0
LFK  54  74  54  80 /  40  10  10   0

&&

.SHV WATCHES/WARNINGS/ADVISORIES...
AR...Dense Fog Advisory until 9 AM CST Tuesday for ARZ050-051-059-060-
     070-071.

LA...Dense Fog Advisory until 9 AM CST Tuesday for LAZ001>003-010-011-
     017.

OK...Dense Fog Advisory until 9 AM CST Tuesday for OKZ077.

TX...Dense Fog Advisory until 9 AM CST Tuesday for TXZ096-097-108>112-
     124>126-136>138-149>153-165>167.

&&

$$

12


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