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GMZ330 Matagorda Bay- 404 Pm Cst Thu Dec 7 2023
Tonight..South winds around 10 knots. Bay waters smooth to slightly choppy.
Friday..South winds 10 to 15 knots. Bay waters slightly choppy. A slight chance of showers.
Friday night..South winds 10 to 15 knots. Bay waters slightly choppy.
Saturday..South winds 10 to 15 knots, becoming west late. Bay waters slightly choppy. A chance of Thunderstorms in the afternoon.
Saturday night..Northwest winds around 20 knots, becoming north around 30 knots with gusts up to 45 knots. Bay waters choppy, becoming very rough. A chance of showers and Thunderstorms in the evening.
Sunday..North winds 20 to 25 knots with gusts up to 35 knots, diminishing to around 15 knots in the afternoon. Bay waters rough, becoming slightly choppy in the afternoon.
Sunday night..North winds 5 to 10 knots, becoming east after midnight. Bay waters smooth.
Monday..East winds 5 to 10 knots. Bay waters smooth.
Monday night..Southeast winds around 10 knots. Bay waters smooth to slightly choppy.
Tuesday..East winds 10 to 15 knots. Bay waters slightly choppy.
Tuesday night..East winds around 15 knots. Bay waters slightly choppy to choppy.
winds and waves higher in and near Thunderstorms.

GMZ300 Synopsis For High Island To The Matagorda Ship Channel Out 60 Nautical Miles Including Galveston And Matagorda Bays 404 Pm Cst Thu Dec 7 2023
Synopsis for high island to the matagorda ship channel out 60 nm including galveston and matagorda bays
strengthening southeasterly to southerly winds will persist through Friday resulting in gradually increasing seas. Isolated rain showers are possible Friday, but will increase in coverage and strength on Saturday as a cold front pushes through the waters. Moderate to strong northwesterly winds will develop behind the front with gusts up to gale force possible Saturday night into Sunday morning along with building seas. Abnormally low tides are possible Sunday morning in the bays due to the strong northwesterly winds. Winds and seas subside on Sunday.

FXUS64 KCRP 072337 AFDCRP

Area Forecast Discussion National Weather Service Corpus Christi TX 537 PM CST Thu Dec 7 2023

New AVIATION

SHORT TERM
(Tonight through Friday night)
Issued at 337 PM CST Thu Dec 7 2023

Key Messages:

- Above-normal temperatures through the end of the workweek

- Patchy to areas of fog tonight and tomorrow night

As the mid to upper-level shortwave continues to move across the area, cloudy conditions are expected to continue across the region.
Clouds should begin to dissipate and move out of the area late tomorrow morning resulting in partly cloudy skies tomorrow afternoon. With less cloud cover tomorrow and onshore flow strengthening ahead of our next cold front, above-normal temperatures are expected with most of South Texas reaching the lower to mid 80s.
There is a low to medium chance of patchy to areas of fog late tonight across the western Brush Country and tomorrow night across most of South Texas due to sufficient low-level moisture and light winds.

LONG TERM
(Saturday through next Wednesday)
Issued at 337 PM CST Thu Dec 7 2023

Key Messages:

- Strong cold front Saturday evening brings a medium chance for sustained winds around 30 mph over the Coastal Bend overnight

- Low chance (20-30$) of showers and thunderstorms Saturday evening along the front, then again the middle of next week

- Medium chance (30-60%) for freezing temperatures early Monday morning for low-lying drainage areas from McMullen to Refugio County

Saturday's highs will be about 10 degrees above normal, ranging from the upper 70s to mid 80s. These temperatures will get absolutely obliterated as a strong cold front pushes through Saturday evening (trended later), bringing colder and much drier air in its wake.
Northerly winds will be strong in wake with gale force conditions over the waters and near Wind Advisory criteria (sustained 30 mph)
over the Coastal Bend overnight into early Sunday morning. Included a low 20-30% chance of showers and even lower chances of thunderstorms during a 6-hr window with FROPA from 6PM Saturday to midnight. It'll be very quick with greatest chances and coverage over the waters. Highs on Sunday drop to the low to mid 60s on Sunday.

Although weak onshore flow returns Sunday night, there's going to be a delay in dewpoints and moisture recovering. Sunday night will be the coldest night across South Texas with clear skies, light winds, and dewpoints in the 20s inland causing efficient radiational cooling. Currently have mid 30s over the inland Coastal Plains and Brush Country, to the mid 40s along the coast. However, low-lying drainage areas could see freezing temperatures. In fact, NBM shows a medium chance (30-60%) of freezing minimum temperatures from McMullen to Refugio County.

Rain-free conditions continue through Tuesday with PWAT values below normal and temperatures warmer with highs on Tuesday in the low 70s and lows Tuesday night generally in the 50s. Low to medium (20-40%)
rain chances return at the end of the long term, during the middle of next week as PWAT values climb to near 1.50" in association with Pacific moisture of a mid-level low or trough traversing from the Pacific across Mexico into South Texas.

AVIATION
(00Z TAFS)
Issued at 531 PM CST Thu Dec 7 2023

Current VFR conditions are expected to deteriorate to MVFR/IFR levels across area terminals late tonight into early Friday morning. Poor aviation conditions will persist through the mid to late afternoon hours, before gradually clearing from west to east in the afternoon. VFR conditions are expected thereafter. Breezy southerly winds will continue to decouple over the next few hours becoming weak overnight. Winds will strengthen again Friday afternoon becoming gusty at around 20-25 knots, mainly across the eastern three sites.

MARINE
Issued at 337 PM CST Thu Dec 7 2023

Light to moderate southeasterly flow will increase to more moderate and turn to the south tonight and Friday. Moderate to strong southerly flow could develop on Friday. The moderate to strong southerly flow will weaken to weak to moderate Saturday just ahead of an approaching cold front. The strong cold front will push through the waters Saturday evening into Saturday night.
Very strong northerly flow of 30-35 knots will follow in the wake of the front causing Gale conditions through at least early Sunday morning, then decrease to 20-25 knots Sunday afternoon.
Isolated to scattered showers and thunderstorms will be possible Saturday afternoon through Saturday night. Winds then quickly diminish, become weak and shifting southeasterly late Sunday night into Monday morning. Southeasterly flow slightly strengthens to weak to moderate Monday night through Tuesday then generally moderate Tuesday night into Wednesday.

PRELIMINARY POINT TEMPS/POPS
Corpus Christi 66 82 66 81 / 0 0 0 0 Victoria 63 78 66 78 / 0 10 0 10 Laredo 63 83 63 82 / 0 0 0 0 Alice 63 84 63 83 / 0 0 0 0 Rockport 64 76 66 77 / 0 0 0 0 Cotulla 61 84 60 80 / 0 0 0 0 Kingsville 64 84 66 84 / 0 0 0 0 Navy Corpus 68 77 68 78 / 0 0 0 0

CRP WATCHES/WARNINGS/ADVISORIES
TX...None.
GM...None.

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Port Lavaca
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Thu -- 01:57 AM CST     Moonrise
Thu -- 04:05 AM CST     0.69 feet High Tide
Thu -- 07:06 AM CST     Sunrise
Thu -- 11:21 AM CST     0.45 feet Low Tide
Thu -- 02:02 PM CST     Moonset
Thu -- 05:29 PM CST     Sunset
Thu -- 07:37 PM CST     0.76 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION

Port Lavaca, Matagorda Bay, Texas, Tide feet

Port O'Connor
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Thu -- 01:56 AM CST     Moonrise
Thu -- 02:06 AM CST     0.59 feet High Tide
Thu -- 07:04 AM CST     Sunrise
Thu -- 09:34 AM CST     0.41 feet Low Tide
Thu -- 02:01 PM CST     Moonset
Thu -- 05:28 PM CST     Sunset
Thu -- 06:20 PM CST     0.61 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION

Port O'Connor, Matagorda Bay, Texas, Tide feet

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