Area Forecast Discussion
Issued by NWS Shreveport, LA

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FXUS64 KSHV 230601
AFDSHV

Area Forecast Discussion
National Weather Service Shreveport LA
1201 AM CST Thu Nov 23 2017

.UPDATE...
Lower temps once more falling through the dew points.

&&

.DISCUSSION...
Guidance is a little off as we have a long way to go before
turning around. Lowered across the board for a light to moderate
freeze and so dry maybe no frost. /24/

&&

.PREV DISCUSSION... /issued 1149 PM CST Wed Nov 22 2017/

AVIATION...
For the 23/06Z terminal forecast will be prevailing VFR flight
categories for all sites across the ARKLATEX that will be under
the influence of high pressure on the surface and aloft. Cloud
cover will consist of mainly high thin cirrus between 18-25 KFT
overnight and into the early half of Thursday with those
decreasing by mid day with clear/SKC conditions through the
afternoon and into the end of the forecast period. With the
surface ridge of high pressure moving overhead, surface winds
will be calm to light and variable for the remainder of the
overnight hours, then light and variable through Thursday. Some
of the more western sites may see light Southerly winds return
near 25/00Z. /06/

PREV DISCUSSION... /issued 1000 PM CST Wed Nov 22 2017/

UPDATE...
Tweak a few low temps based on dew points at this time and
expectations overnight.

DISCUSSION...
Starry night with only high thin cirrus coming which is not
likely to affect sfc temperatures much if any. Many sites will
settle down to the dew point at current and yet some valley areas
may still fall through by daybreak such as De Queen and El
Dorado. Our sounding had .28 pwat and Little Rock was nearly half
that which may even allow our dew points to fall a bit more as
high pressure settles in on NE wind and then goes calm toward
daybreak. So we have made a few changes to lows for the overnight
and not much else with trends running close to hourly thus far.
/24/

&&

.PRELIMINARY POINT TEMPS/POPS...
SHV  38  69  46  71 /   0   0   0   0
MLU  35  66  43  70 /   0   0   0   0
DEQ  36  69  44  70 /   0   0   0   0
TXK  37  68  45  69 /   0   0   0   0
ELD  34  67  44  68 /   0   0   0   0
TYR  41  72  48  72 /   0   0   0   0
GGG  39  70  47  71 /   0   0   0   0
LFK  39  71  46  74 /   0   0   0   0

&&

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

$$

24/06



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