Area Forecast Discussion
Issued by NWS Houston/Galveston, TX

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275
FXUS64 KHGX 210033
AFDHGX

Area Forecast Discussion
National Weather Service Houston/Galveston TX
733 PM CDT Wed Sep 20 2017

.AVIATION...
Activity across SE TX winding down at this time with the loss of
daytime heating. High clouds coming in from the west should help
to keep fog issues to a minimum overnight. Otherwise, short-term
models are indicating a slightly more active day tomorrow as low
level moisture deepens. 41

&&

.PREV DISCUSSION... /ISSUED 326 PM CDT Wed Sep 20 2017/

Scattered showers and thunderstorms have developed today on the
tail end of an eastward moving disturbance. Those receiving the
heaviest rains have gotten a radar estimated 1 to almost 3 inches.
Expect to see decreasing coverage late this afternoon and on into
early this evening. Models are showing slightly higher
precipitable water values moving into the area tomorrow, and with
a general weakness in mid/upper level ridging, have gone with
slightly better rain chances. POPs lower at the end of the week
and over the weekend under weak ridging and slightly lower
precipitable water values. Will carry increasing rain chances next
week as ridging aloft begins to break down and a western U.S.
trough eventually works its way toward the east. 12Z models are
not in particularly good agreement with the
strength/location/movement of this trough, so confidence is on the
low side with next week`s forecast. Maybe we`ll see a cold front
move through the area toward the end of next week? 42

&&

.PRELIMINARY POINT TEMPS/POPS...
College Station (CLL)      75  92  73  91  71 /  20  40  30  10  10
Houston (IAH)              77  91  75  91  73 /  40  40  30  20  10
Galveston (GLS)            80  88  80  87  79 /  20  40  30  20  20

&&

.HGX WATCHES/WARNINGS/ADVISORIES...
TX...NONE.
GM...NONE.
&&

$$



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