Thursday, November 26, 2020

Nov. 26 20

 Summary: Mid to high stratus clouds looked to cover most of the sky, during the morning, afternoon, evening, and maybe night. The wind speeds were calm with some moderate to possibly moderately strong gusts. I believe there was a 40 percent chance for rain for the Houston, TX area, during the night. It felt cold, during the early morning. It felt very cool, during the mid-morning. It felt cool, during the late morning. It started to feel warm, during the early afternoon. It felt warm, during the mid and late afternoon and evening. It felt a little cool, during the late night. I did not see, or hear about any rain falling anywhere in, or near the Houston, TX area, during anytime of the day. I did not see, or feel any rain drops.

Area Forecast Discussion
Issued by NWS Houston/Galveston, TX

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary Off
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
005
FXUS64 KHGX 270226
AFDHGX

Area Forecast Discussion
National Weather Service Houston/Galveston TX
826 PM CST Thu Nov 26 2020

.SHORT TERM [Tonight through Friday Afternoon]...
Jet max is quickly approaching across Mexico and aiding the
development of showers/virga over the Rio Grande/Hill Country
corridor aimed at SETX. Warm front poised over the Gulf waters
just south of Galveston and has edged into Palacios/Wharton. Some
fog is expected to develop overnight along and north of the warm
front as it crawls inland. Not confident that it will get below 1
mile especially as rainfall gets going toward morning. Some fog on
Galveston Bay looks possible mainly after midnight through around
8 am. Soundings showing that threat for thunderstorms increases
mid morning and have nudged up rain chances toward sunrise across
the south and then most of the area through noon. The warm front
stalls and will still have some heavy rainfall threat as it
eventually starts to wobble southward again in the afternoon. SPC
has maintained the marginal risk for severe storms over the area
Friday mainly a small hail and gusty wind threat. Rainfall rates
of 2"/hour are within the realm of possibility in the stronger
storms. If these storms band up then possibly some street flooding
issues will be possible in the more urban areas.

So bottom line...if you are going to be out Friday and Friday
night bring an umbrella and/or raincoat. And if you spot a flooded
road turn around.
45

&&

.AVIATION [00Z TAF Issuance]...
MVFR ceilings spreading from the coast and as the speed max aloft
approaches expect to see both the isentropic lift over the warm
front increase leading to a lowering/thickening of the clouds over
the area as well as some fog. The trend should be MVFR through
05-07z then more widespread IFR/MVFR conditions gradually
improving after 18z. Another night of low ceilings on tap again
Friday night. Scattered showers will be developing this evening
then transition over to SHRA/TSRA toward morning and persisting
through the afternoon/evening. The band of precip may be
widespread over the area during the morning then could focus up
closer to the warm front and sag southward during the afternoon
having a greater impact on the CXO/IAH/HOU/SGR terminals.
45

&&

.PREV DISCUSSION /Issued 308 PM CST Thu Nov 26 2020/...





.LONG TERM [Sunday Through Thursday]...
Storm system should be departing the area to the e/se early Sunday
morning with precip coming to an end. Should see breezy and much
colder conditions along with some wrap around cloud cover in its
wake for the remainder of the day. A reinforcing surge of surface
high pressure builds into the area Monday and overhead Monday
night & Tue morning. It`s during this time period with mclear
skies and winds becoming light that some locations generally
north of a Wharton-The Woodlands-Liberty line may see the potential
for their first freeze of the season. That said, wet grounds
could end up being a limiting factor for the more southern
locations.

Southerly winds return to the area Tue and transport some moisture
back into the region in advance of the next cold front currently
penciled in for Wednesday. Overall quality/depth of moisture is
questionable before it arrives, but medium range solutions seem to
be in decent agreement for at least some iso/sct precip is
possible east of the Highway 59/I-69 corridor.

Remainder of the work week will be dry/cool.  47


.MARINE...
A cold front will approach the coast Friday then slow/stall. May
see some patchy fog at times near the bays, but am not
anticipating the prolonged dense variety.

A coastal trof/low will develop off the mid/south Tx coast on
Saturday and move northeast along the upper Tx coast Saturday
night. Periods of unsettled wx with showers/tstms can be expected
in advance...and will likely see a rise in water levels (below
coastal flood concern) with a bump in the e/ne winds and seas
ahead of the coastal low. As this system pushes off to the east
Saturday night, it`ll drag the cold front down into the waters. A
much colder airmass moving over the warmer coastal waters should
allow for nw winds to gust to around gale force in its wake into
Sunday. Small craft advsy conditions are a given. Those same winds
will create a favorable set-up to transport water out of the bays
(esp northern parts) and will need to keep an eye out for low
water conditions.

Onshore winds briefly resume Tue ahead of the next cold front
expected to move into the waters Wednesday. 47


.HYDROLOGY...
Rivers are currently in good shape, but will keep an eye on
southern watersheds for any localized rises caused by any training
heavy rains than could occur Fri-Sat. 47

&&

.PRELIMINARY POINT TEMPS/POPS...

College Station (CLL)  64  70  56  60  43 /  30  70  70  80  70
Houston (IAH)          68  75  61  65  50 /  60  90  80  80  80
Galveston (GLS)        71  76  66  70  54 /  50  90  80  80  80

&&

.HGX WATCHES/WARNINGS/ADVISORIES...

TX...None.
GM...None.

&&

$$


SHORT TERM/AVIATION...45
LONG TERM...Luchs
CLIMATE...K

No comments:

Post a Comment