Summary: The sky looked to be possibly clear, during the early morning. Low white and grey stratus clouds covered most of the sky, during the afternoon, evening, and maybe night. The wind speeds were calm with moderate gusts. There was a 30 percent chance for rain for the Houston, TX area, during the night. I did not see, or hear about any rain falling in the Houston, TX area, during anytime of the day. It had looked like it had wanted to rain during the afternoon and evening but no rain drops fell, where I was, during anytime of the day. It felt very cold, almost unbearably cold, during the early morning. It felt very cold, during the mid-morning. It felt cold, during the late morning and night. It felt very cool, during the afternoon. It felt very cool, almost cold, during the evening.
Thoughts: Great first day of December. Had to de-frost my windows before work in the morning. My whole car was frosted over.
Area Forecast Discussion
Issued by NWS Houston/Galveston, TX
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000 FXUS64 KHGX 012349 AFDHGX Area Forecast Discussion National Weather Service Houston/Galveston TX 549 PM CST Tue Dec 1 2020 .AVIATION... Moderate onshore winds will remain in place tonight and Wednesday with high pressure to the east and low pressure over West Texas. The onshore flow will bring deeper moisture into the area tonight and weak WAA showers will be possible around 09z over western TAF sites, generally along the deeper moisture axis. On Wednesday, widespread shra/tsra activity expected as moisture deepens and a strong 300 mb speed max dives into the state. This feature will enhance lift and coupled with the ascent on the east side of an upper trough and the increase in moisture, feel showers and thunderstorms will become widespread by 15z. A cold front will cross the region between 21-00z with winds shifting to the NW and precip ending from W to E. 43 && .PREV DISCUSSION... /ISSUED 347 PM CST Tue Dec 1 2020/ DISCUSSION... SHORT TERM [Through Wednesday Night]... For the rest of today, southeasterly flow with progressively increasing cloud coverage from the south. Temperatures topping out around 60 for most of the CWA and mid 60s along the coastal counties. Tonight, southerly wind flow along with increasing cloud coverage will keep radiational cooling restricted and lows warmer than last night at around 50 in the northern counties and around 60 in the coastal counties. Tomorrow brings in another cold front pushing through the area entering the western counties in the morning, and moving mainly east with a north to south orientation by early tomorrow night. With the system moving through the area tomorrow, precip chances will certainly increase. Potential for thunderstorm development will be there but mainly along the coastal counties; a stray thunderstorm elsewhere is not ruled out. Moisture advecting into the area ahead of the front increases the PWATs to around 1.25" with some peaks along the coast close to 1.5". Rain accumulation tomorrow could be high in some areas. In the northern counties, around 0.75" is expected and coastal counties could see around 1.5" with some areas favorable for higher amounts. The front does appear to stay organized as it pushes through the CWA. A somewhat diffluent upper level wind flow due to orientation of the Subtropical Jet to the SE and a finger of the PFJ to the northwest does support some convection but unless a strong trigger moves through the area, rain showers will be the main active weather event in most of the CWA. Along the coastal counties, the relatively warmer waters will provide enough instability to form a thunderstorm but low capping inland should keep that to a minimal and will mainly stay in the coastal waters. Highs will be in the low 60s for the northern counties and could get right around 70 for the coastal counties. LONG TERM [Friday Through Tuesday]... Thurs should start off rather breezy/cold over SE TX in the wake of the strong cold front, with some clearing expected. However, as it has been hinted at, the associated upper low stretching across the Southern Plains could bring additional wraparound clouds to the FA Thurs night/early Fri morning as the main low breaks off and begins to track east with time. This pattern should help keep a northerly flow in place across the CWA into the upcoming weekend. The offshore winds should weaken Sat/Sun as the surface high settles across the region. Of some concern for this time frame looks to be the broken off bit of upper level energy (from Thur/Fri way out west) as these latest runs are suggesting that this feature eventually deepens to another closed upper low. As this system begins to slowly track to the east, the weak/flat upper level ridging over SE TX could become a bit more southwesterly by early next week and begin tapping into impulses via the southern stream jet. As such...did lower (already low) POPs for the weekend, and kept the hints at more low POPs for the start of next week. For temperatures, did keep at to very near MOS for highs for days 3 through 7, but did trend low temperatures ever so slightly below guidance numbers. MARINE... Onshore flow has already returned this afternoon, and the alley of cloud development from the Gulf onto the coast indicates the influx of moisture ahead of an approaching cold front. Winds are expected to strengthen through the night, and reach the small craft advisory threshold later this evening, with building seas shortly thereafter. Rain and storms can also be expected later tonight and through the day tomorrow - some of the storms over the Gulf waters in particular may be strong, generating locally dangerous winds and waves. A front will cross the waters later on Wednesday into Wednesday evening. Though it will end the threat of storms, strong north winds should be expected after the front, likely necessitating another small craft advisory. Moderate to strong winds out of the north should continue deep into the week, gradually diminishing into the weekend. && .PRELIMINARY POINT TEMPS/POPS... College Station (CLL) 48 61 34 54 37 / 50 70 10 0 0 Houston (IAH) 54 66 40 56 42 / 50 100 20 10 10 Galveston (GLS) 62 68 45 58 47 / 50 100 30 10 10 && .HGX WATCHES/WARNINGS/ADVISORIES... TX...NONE. GM...Small Craft Advisory from 9 PM this evening to 3 PM CST Wednesday for the following zones: Coastal waters from Freeport to Matagorda Ship Channel TX out 20 NM...Coastal waters from High Island to Freeport TX out 20 NM...Waters from Freeport to Matagorda Ship Channel TX from 20 to 60 NM...Waters from High Island to Freeport TX from 20 to 60 NM. && $$ Discussion...99 Aviation/Marine...99
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