Sunrise 6:49 AM   Sunset 8:04 PM Moonrise 2:50 AM   Moonset 2:33 PM

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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- 339 Am Cdt Fri May 3 2024
Today - Southeast winds 5 to 10 knots increasing to 10 to 15 knots this afternoon. Light chop on the bay becoming a moderate chop this afternoon. Patchy fog this morning. A slight chance of showers and Thunderstorms this morning. Tonight - Southeast winds 10 to 15 knots decreasing to 5 to 10 knots after midnight. A moderate chop on the bay becoming light chop after midnight. Saturday - Southeast winds 10 to 15 knots increasing to 15 to 20 knots in the afternoon. A moderate chop on the bay becoming choppy in the afternoon. Saturday night - Southeast winds 15 to 20 knots decreasing to 10 to 15 knots after midnight. Choppy on the bay becoming a moderate chop after midnight. Sunday - Southeast winds 10 to 15 knots increasing to 15 to 20 knots in the afternoon. A moderate chop on the bay becoming choppy in the afternoon. Sunday night - Southeast winds 15 to 20 knots. Choppy on the bay. Monday - Southeast winds around 15 knots. A moderate chop on the bay. Monday night - Southeast winds around 15 knots. A moderate chop on the bay. Tuesday - Southeast winds 10 to 15 knots. A moderate chop on the bay. Tuesday night - Southeast winds around 15 knots. A moderate chop on the bay.
winds and waves higher in and near Thunderstorms.

GMZ100 339 Am Cdt Fri May 3 2024
Synopsis - Moderate to fresh southeast winds and moderate to sometimes high seas will prevail along the lower texas coast through the forecast.

FXUS64 KBRO 030943 AFDBRO

Area Forecast Discussion National Weather Service Brownsville TX 443 AM CDT Fri May 3 2024

New SHORT TERM, LONG TERM, MARINE

SHORT TERM
(Today through Saturday)
Issued at 357 AM CDT Fri May 3 2024

A 500 mb disturbance will approach the western portion of CWA this afternoon. At the surface, the southern extension of the Texas dryline will likely lie just to the west of the area today, extending south into Mexico along the Sierra Madre Oriental range.
The combination of a very moist low-level airmass, daytime heating and mid to upper level energy will support the develop of convection over neighboring Mexico. Forecast soundings from along the Rio Grande River suggest SBCAPE values of 2500-4000 J/kg late this afternoon. The isolated to scattered showers and thunderstorms may drift into Zapata, Starr, and Jim Hogg counties later this afternoon and evening. SPC has placed the County Warning Area in a general thunderstorm risk area, generally along and east of US 281/I-69C, with the portions of the Rio Grand Plains and the Upper Valley in a marginal thunderstorm risk for today and tonight. Large hail and locally damaging wind gusts will be the main threats. There is a low chance that these stronger supercells will move into the western portions of the CWA this afternoon and evening. SPC has all of Deep South Texas outlined in a general thunderstorm risk for Saturday.

Otherwise, increasing low level moisture and light winds this morning may support patchy light fog, mainly across the Northern Ranchlands and near/over marine areas.

Additionally, above normal temperatures will continue through the short-term with highs generally ranging from the low to mid 90s, except for the 80s near the coast, today and Saturday. Overnight temperatures will be warm with lows in the mid to upper 70s, which is a blend of the NBM/CONSShort. Southeast winds will remain moderate to breezy.

Elevated seas will result in a Moderate Risk of rip currents at the local beaches today through Saturday.

LONG TERM
(Saturday Night through Thursday)
Issued at 357 AM CDT Fri May 3 2024

Increasing and prolonged heat will be the main concern during this portion of the total forecast. Steadily rising daytime highs will occur throughout the period, with well above normal values likely in the Tuesday through Thursday time frame. Temperatures will near established HEAT ADVISORY criteria on Tuesday, and may reach or surpass the threshold for Wednesday and Thursday as a dryline nudges into the BRO CWFA from the west.

Additionally, an enhanced pressure gradient will produce a breezy to windy onshore flow, providing some measure of relief from the heat, especially in shaded areas. However, the strength of the wind will not near or exceed established WIND ADVISORY criteria.

AVIATION
(06Z TAFS)
Issued at 102 AM CDT Fri May 3 2024

Light to moderate southeast winds and low cloud decks with a mix of IFR/MVFR ceilings prevail across Deep South Texas early this morning. Moisture increasing overnight will allow ceilings to lower to IFR overnight through early this morning at all RGV aerodromes. MVFR ceilings are expected by mid to later morning.
Winds will decrease early this morning and could allow for some patchy fog to develop near daybreak. VFR conditions are expected to return this afternoon, especially at MFE. MVFR ceilings are expected to develop again late in the period.

MARINE
(Today through Saturday)
Issued at 357 AM CDT Fri May 3 2024

Moderate to fresh southeast winds and moderate to sometimes marginally high seas will prevail along the lower Texas Coast through the period. Small Craft Exercise Caution conditions will be likely for portions or all of the lower Texas coastal waters through Saturday.

(Saturday Night through Thursday)
An enhanced pressure gradient will exist over the western Gulf of Mexico throughout the period. Breezy to strong winds and moderate to rough seas will prevail along the Lower Texas Coast, with both Small Craft Exercise Caution and Small Craft Advisory likely to be needed.

PRELIMINARY POINT TEMPS/POPS
BROWNSVILLE 90 77 88 76 / 20 10 0 0 HARLINGEN 91 75 91 74 / 20 10 0 0 MCALLEN 93 77 93 77 / 20 10 0 10 RIO GRANDE CITY 93 77 94 76 / 20 10 10 10 SOUTH PADRE ISLAND 82 77 81 76 / 20 10 0 0 BAYVIEW/PORT ISABEL 87 76 86 74 / 20 10 0 0

BRO WATCHES/WARNINGS/ADVISORIES
None.

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Port Isabel
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Fri -- 03:49 AM CDT     Moonrise
Fri -- 05:55 AM CDT     0.24 feet Low Tide
Fri -- 06:49 AM CDT     Sunrise
Fri -- 01:39 PM CDT     1.23 feet High Tide
Fri -- 03:33 PM CDT     Moonset
Fri -- 08:01 PM CDT     0.80 feet Low Tide
Fri -- 08:01 PM CDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION

Port Isabel, Texas, Tide feet

Port Isabel
Click for Map
Fri -- 12:28 AM CDT     1.11 feet High Tide
Fri -- 03:49 AM CDT     Moonrise
Fri -- 05:55 AM CDT     0.26 feet Low Tide
Fri -- 06:49 AM CDT     Sunrise
Fri -- 03:02 PM CDT     1.30 feet High Tide
Fri -- 03:33 PM CDT     Moonset
Fri -- 07:13 PM CDT     0.77 feet Low Tide
Fri -- 08:01 PM CDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION

Port Isabel, Texas (2), Tide feet

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Brownsville, TX,