Forecast Discussions mentioning any of "ACARS" "MDCRS" "AIRCRAFT" "TAMDAR" "AMDAR" "WVSS" received at GSD on 07/20/21

Area Forecast Discussion

National Weather Service Houston/Galveston TX

 1009 PM CDT Mon Jul 19 2021

.DISCUSSION...
Showers/tstms moving off the coast this evening. Mid/upper trof
axis extending from the northeast states across the TN Valley into
north Tx. Disturbances rotating around this feature may lead to
iso/sct precip across parts of the area overnight. PW`s will fall
below 1.7" tomorrow, and with RRQ of the upper jet situated right
along the coastline...thinking is that most favorable location for
the better rain chances would be offshore and less so inland. Still
looking for some sct daytime activity, but nudged POPs down a
touch for now and will let the midnight crew further analyze
things. 47

&&

.PREV DISCUSSION... /ISSUED 636 PM CDT Mon Jul 19 2021/
AVIATION...
Frontal boundary/wind shift stretching from Liberty-
IAH- Bellville is making steady southward progress. Ahead of the
front is a mess of outflow boundaries, etc from earlier cells &
the seabreeze. Convergence & collisions between any can still
initiate some tstms fairly quickly, but questionable as to the
details. IAH probably has another 1-2 hours of a tstm threat and
HOU a bit more. Most unstable area is situated just west of I-45 &
south of I-10 where pcldy skies and warmer temps are situated.
Aircraft soundings, while showing some skinny CAPE/instability in
the metro area, aren`t as unstable and loaded as some guidance has
recently suggested and has led to considerable fcst uncertainty
going forward. Some depict storms re-firing late tonight & early
Tue morning closer to the coast and a spattering of cells further
n/ne. Kept some VCSH`s going for some sites and will watch trends
for future amendments.

VFR conditions will prevail outside of any strong convection this
evening. Possibly some 800-2000ft cigs developing north of the
metro late tonight into mid morning. Probably some iso/sct precip
development with heating Tue afternoon, but confidence as to
when/where is quite low...as described above...but VFR conditions in
general should prevail thru the majority of the day. 47

&&

.PRELIMINARY POINT TEMPS/POPS...
College Station (CLL)      73  89  71  90  72 /  20  30  20  30  20
Houston (IAH)              75  91  74  91  76 /  20  30  30  40  30
Galveston (GLS)            78  91  79  89  81 / 100  40  50  50  30

&&

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

&&

$$