December 2020

General Weather Discussions and Analysis
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jasons2k
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tireman4 wrote: Wed Dec 02, 2020 8:52 pm We do need this rain.
Yep, you're right about that. I measured 1.00" exactly. A nice start to December. With the cooler weather, this rain will help us out a lot and sustain us for awhile.
Cpv17
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The GFS looks interesting in about 10 days. Could be another big rainmaker.
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MontgomeryCoWx
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Yep... and the cold air is building big time in our source region.
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jasons2k
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Looks like some rain showers over towards Winnie and Beaumont.
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snowman65
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Why wont it stop raining hete?? Geez....enough already.
tropiKal
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snowman65 wrote: Thu Dec 03, 2020 12:51 pm Why wont it stop raining hete?? Geez....enough already.
Beaumont and heavy rainbombs - name a more appropriate duo.
tropiKal
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Cpv17 wrote: Wed Dec 02, 2020 10:19 pm The GFS looks interesting in about 10 days. Could be another big rainmaker.
The associated low pressure looks focused on the Great Lakes. The impact may not be too heavy, at least for now.
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DoctorMu
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Awesome and sunny 7 days ahead. Like January in north Florida.

A few interesting scenarios in the 8-15 day range, one with a massive ULL out of Mexico and another with a surface low dipping out of Colorado. We'll see.
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don
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The clouds come back tomorrow with light rain showers.At least is only for one day. ;) More widespread rain may be possible late next week though.
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jasons2k
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Yeah, that chance of rain tomorrow night came out of nowhere. We’ll take all we can get with La Nina.

It’s a tad chilly for me but I can’t complain. I know the cold weather lovers are liking this weather and it’s not freezing, so it’s all good. Besides, it’s still only December. It should be chilly for the holidays, right? :) I’ll be ready for spring on January 2nd though. Enjoy the cooler weather while it lasts folks.
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Katdaddy
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Clouds increasing this morning thanks to an upper level low near the Big Bend which will move across TX this weekend. An area of light rain and scattered showers will be moving across SE TX later this morning and this afternoon. Rain chances remain overnight. Cloudy skies should become partly cloudy Sunday afternoon.
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Cpv17
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Overall there doesn’t really appear to be anything worth talking about for the next week or so.
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DoctorMu
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jasons2k wrote: Fri Dec 04, 2020 8:52 pm Yeah, that chance of rain tomorrow night came out of nowhere. We’ll take all we can get with La Nina.

It’s a tad chilly for me but I can’t complain. I know the cold weather lovers are liking this weather and it’s not freezing, so it’s all good. Besides, it’s still only December. It should be chilly for the holidays, right? :) I’ll be ready for spring on January 2nd though. Enjoy the cooler weather while it lasts folks.
A remarkable glitch for a forecast within 48 hours. Everything is wet enough for December.
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jasons2k
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Looks mild for quite awhile...
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DoctorMu
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Chamber of Commerce weather today. Sunshine, low dewpoint, temps in the low 70s. North Florida winter weather again.

Chance of rain late Friday as a front and upper level trough pass through.

Area Forecast Discussion
National Weather Service Houston/Galveston TX
1056 AM CST Tue Dec 8 2020

.AVIATION [18Z TAF Issuance]...

VFR conditions are expected through the period with light west to
southwest winds. 05

&&

.PREV DISCUSSION /Issued 426 AM CST Tue Dec 8 2020/...


.SHORT TERM [Today through Wednesday Night]...

No major issues are expected for the short-term as SE TX remains
under the influence of the weak surface ridge slowly building in
to the northern Gulf. The light NW winds today should be veering
to the W/SW tonight and tomorrow as this high settles across the
Gulf waters. As such, the mild temperatures today (upper 60s/low
70s) will be warming tomorrow (mid/upper 70s). Lows should range
from the low/mid 40s tonight and in mid/upper 40s tomorrow night
for inland areas....mid/upper 50s at the immediate coast. Other-
wise, rain chances will remain nil for this time frame. 41


.LONG TERM [Thursday through Tuesday]...

As the surface high weakens/moves off to the E/NE, onshore winds
are set to return to SE TX by Thurs. This will help continue the
warming trend with Thurs high temperatures remaining in the mid/
upper 70s range. The S/SE low-level flow should begin ramping up
Thurs night/early Fri morning when the upper trof moves into the
Southern Plains and begins to deepen. This strengthening onshore
flow will help to advect higher PWs in from the Gulf (1.4"-1.6")
and fuel development along a prefrontal trof through the day Fri.
The main cold front (with its colder/drier air) should arrive in
to SE TX Fri night/early Sat morning. Some clearing will be pos-
sible, but there are still some discrepancies with global models
with the long-term. GFS indicating more clearing/drying it drags
the main longwave trof axis fairly quickly to the east. However,
will be trending our extended grids more toward the ECMWF/Canad-
ian/ICON runs which are advocating a slower passage of the upper
trof axis this weekend. And so, did leave some chicken dimes in/
over the Gulf waters on Sat. A secondary front/surge of cold dry
air is progged to move across the CWA Sun and should finally dry
things up here. Our next best chances of rain may be as early as
next Tues/Tues night with the passage of another cold front. 41


.MARINE...

Northwesterly winds today should relax and become southwesterly
tonight as pressures rise over the southwestern Gulf. A weak cold
front pushes down into OK Wednesday and dissipates. Ridging shifts
into the eastern Gulf and opens up longer southerly fetch Thursday
feeding into the next system. This will bring back moisture and if
the winds aren`t too strong (could get into SCEC) and too much dry
air doesn`t mix down then we get some sea fog to form over the cool
shelf waters Thursday night/early Friday. Moderate southerly flow
Friday ahead of the cold front Friday night. Expect SCEC/SCA
conditions before the front arrives and SCA post frontal. Not sure
about shower/thunderstorm coverage over the Gulf waters with
the front given the potential for capping.

45

&&

.PRELIMINARY POINT TEMPS/POPS...

College Station (CLL) 71 43 75 46 75 / 0 0 0 0 0
Houston (IAH) 70 46 74 49 75 / 0 0 0 0 0
Galveston (GLS) 67 56 71 61 73 / 0 0 0 0 0
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snowman65
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What fun we were having 3 years ago today.....
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DoctorMu
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snowman65 wrote: Tue Dec 08, 2020 1:54 pm What fun we were having 3 years ago today.....
Yes we were!
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MontgomeryCoWx
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Great night! Played in the snow until 130 am.
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redneckweather
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Mid January of 2018: Temp dropped to 28 overnight and the moisture set in. By 11am the next day temp dropped to 25 under strong north winds, heavy overcast with intermittent sleet and snow showers the entire day! We had some good accumulating sleet and the snow was just starting to stick on top of the sleet when the system started to pull out. What did accumulate was sleet more than snow...couldn't even build a sleet man out of it.lol

That is the only accumulating winter precip event I have had at my house since I have lived here (20 years). Crazy.
Cpv17
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redneckweather wrote: Wed Dec 09, 2020 9:12 am Mid January of 2018: Temp dropped to 28 overnight and the moisture set in. By 11am the next day temp dropped to 25 under strong north winds, heavy overcast with intermittent sleet and snow showers the entire day! We had some good accumulating sleet and the snow was just starting to stick on top of the sleet when the system started to pull out. What did accumulate was sleet more than snow...couldn't even build a sleet man out of it.lol

That is the only accumulating winter precip event I have had at my house since I have lived here (20 years). Crazy.
We didn’t really get anything out of that down here in Wharton/El Campo but we’ve had 3 decent snow events since 04. I want to say 04, 09(not sure about that one but it was in early December) and then the one in 17.
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