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GMZ130 Laguna Madre From The Port Of Brownsville To The Arroyo Colorado- Laguna Madre From The Arroyo Colorado To 5 Nm North Of Port Mansfield Tx- Laguna Madre From 5 Nm North Of Port Mansfield To Baffin Bay Tx- 342 Pm Cst Sun Dec 3 2023
Tonight..South winds around 5 knots becoming southwest after midnight. Smooth on the bay.
Monday..West winds around 5 knots becoming northeast in the afternoon. Smooth on the bay becoming light chop in the afternoon.
Monday night..Northeast winds 5 to 10 knots becoming east after midnight. Light chop on the bay becoming smooth after midnight.
Tuesday..Northeast winds around 5 knots becoming east in the afternoon. Smooth on the bay becoming light chop in the afternoon.
Tuesday night..Northeast winds 5 to 10 knots. Light chop on the bay.
Wednesday..Northeast winds 5 to 10 knots. Light chop on the bay.
Wednesday night..Southeast winds 5 to 10 knots. Light chop on the bay.
Thursday..Southeast winds around 10 knots increasing to around 15 knots in the afternoon. Light chop on the bay becoming a moderate chop in the afternoon.
Thursday night..Southeast winds 10 to 15 knots. A moderate chop on the bay.
Friday..South winds 10 to 15 knots. A moderate chop on the bay.
Friday night..South winds 10 to 15 knots. A moderate chop on the bay.

GMZ100 342 Pm Cst Sun Dec 3 2023
Synopsis..High pressure will prevail across the gulf of mexico through late week, maintaining light to moderate winds and low to moderate seas into mid week.

FXUS64 KBRO 032323 AAA AFDBRO

Area Forecast Discussion...UPDATED National Weather Service Brownsville TX 523 PM CST Sun Dec 3 2023

New AVIATION

SHORT TERM
(Tonight through Monday night)
Issued at 159 PM CST Sun Dec 3 2023

The short term period will feature near normal temperatures and rain- free conditions as surface high pressure builds across the region.
The drier airmass will result in lower humidity values, and in combination with high temperatures in the 70s, will make for pleasant and comfortable Monday afternoon. Persistent southwesterly flow aloft will allow for continued high clouds streaming overhead, but there may be a few breaks for brief sunshine.

Overnight temperatures for tonight and Monday night will range from the 50s to low 60s, as increased cloud cover limits effective radiational cooling processes. We'll have to keep an eye on the potential for the development of patchy fog as winds become light, but as of right now the chance looks to be low for each night. The return of southerly winds may allow for some low level moisture to increase, with the best potential along the immediate coast.

LONG TERM
(Tuesday through next Sunday)
Issued at 159 PM CST Sun Dec 3 2023

Key Messages:

-Dry conditions expected across Deep South Texas through the period.

-Above normal temperatures expected by late week.

As a mid/upper level ridge traverses across the CONUS this week, a series of shortwaves will move across Texas and northern Mexico.
While we will see increasing moisture on Tuesday into Wednesday with the approach of a shortwave, chances for precipitation will remain limited. The latest GFS guidance has backed off on POPs, coming more in line with other models with rain chances remaining below 10% for this event. The atmosphere begins to dry out again Thursday night, which will keep conditions dry through the week.

As we head to the end of the forecast period, models indicate another trough swinging through the Plains bringing a cold front through the region on Saturday or early Sunday. At this time moisture is limited with this front and precip chances are under 10%.

Light northeast to easterly winds turn southeast by Thursday allowing for humidity and temperatures to increase. Temps will remain in the mid to upper 70s through Thursday, with low 80s possible by Friday and Saturday. The aforementioned cold front looks to drop temperatures below seasonal norms by the end of the weekend. Overnight lows will climb back into the 60s by late week with 40s and 50s possible after the frontal passage.

AVIATION
(00Z TAFS)
Issued at 517 PM CST Sun Dec 3 2023

Light and variable winds with abundant high clouds prevail across Deep South Texas early this evening. VFR conditions are expected to prevail through the forecast period with BKN to OVC high clouds streaming overhead. However, there is the potential of some patchy fog late tonight. Will hold off on mentioning any fog at this time, as confidence remains low. Light northerly winds will gradually shift to the south over the next 24 hours, with wind speeds around or below 8 knots.



MARINE
Issued at 159 PM CST Sun Dec 3 2023

Now through Monday...High pressure will continue to build, which will result in favorable marine conditions. Light winds and seas around 2 to 4 feet are expected today, with seas around 2 feet expected by Monday. Winds will shift from the north to southeast this evening into tomorrow. Patchy fog may develop each morning, limiting visibility to less than 5 miles at times.

Tuesday through Friday...Favorable marine conditions are expected through much of the period as high pressure builds over the northern Gulf. As we head toward the later part of the week caution conditions will be possible on the Laguna Madre and Gulf waters later Thursday into Friday as the pressure gradient increases. Wave heights of 1 to 2 feet will build to 3 to 4 feet by the end of the period.

PRELIMINARY POINT TEMPS/POPS
BROWNSVILLE 60 75 63 76 / 0 0 0 10 HARLINGEN 55 74 58 77 / 0 0 0 0 MCALLEN 57 74 59 77 / 0 0 0 0 RIO GRANDE CITY 55 73 57 76 / 0 0 0 0 SOUTH PADRE ISLAND 64 71 66 72 / 0 0 0 0 BAYVIEW/PORT ISABEL 58 73 61 75 / 0 0 0 0

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

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Port Isabel
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Sun -- 07:00 AM CST     Sunrise
Sun -- 12:10 PM CST     Moonset
Sun -- 01:18 PM CST     0.13 feet Low Tide
Sun -- 05:36 PM CST     Sunset
Sun -- 11:24 PM CST     1.42 feet High Tide
Sun -- 11:25 PM CST     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION

Port Isabel, Texas, Tide feet

Port Isabel
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Sun -- 07:00 AM CST     Sunrise
Sun -- 12:10 PM CST     Moonset
Sun -- 01:31 PM CST     0.06 feet Low Tide
Sun -- 05:36 PM CST     Sunset
Sun -- 11:25 PM CST     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION

Port Isabel, Texas (2), Tide feet

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