Port Isabel, TX Marine Weather and Tide Forecast
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Marine Weather and Tide Forecast for Port Isabel, TX

April 14, 2024 10:31 PM CDT (03:31 UTC) Change Location
Sunrise 7:05 AM   Sunset 7:54 PM
Moonrise 10:52 AM   Moonset 12:29 AM 
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NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.

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Marine Forecasts
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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- 917 Pm Cdt Sun Apr 14 2024

.small craft caution - .

Rest of tonight - Southeast winds 15 to 20 knots. Choppy on the bay.

Monday - Southeast winds 15 to 20 knots increasing to 20 to 25 knots with gusts up to 30 knots in the afternoon. Choppy on the bay becoming rough in the afternoon.

Monday night - Southeast winds 20 to 25 knots becoming south 15 to 20 knots after midnight. Rough on the bay becoming choppy after midnight.

Tuesday - Southeast winds 15 to 20 knots. Choppy on the bay.

Tuesday 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.

Wednesday - Southeast winds 10 to 15 knots. A moderate chop on the bay.

Wednesday night - Southeast winds 10 to 15 knots. A moderate chop on the bay.

Thursday - Southeast winds 10 to 15 knots. A moderate chop on the bay.

Thursday night - Southeast winds around 10 knots. Light chop on the bay.

Friday - Southeast winds 10 to 15 knots. A moderate chop on the bay.

Friday night - Southeast winds 10 to 15 knots. A moderate chop on the bay.

GMZ100 917 Pm Cdt Sun Apr 14 2024

Synopsis - An enhanced pressure gradient will produce adverse to hazardous winds and seas along the lower texas coast through mid- week. Small craft should exercise caution and small craft advisory will be needed in response to the stronger winds and higher seas. More favorable marine conditions will occur later in the week as the gradient relaxes.


7 Day Forecast for Marine Location Near Port Isabel, TX
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Area Discussion for - Brownsville, TX
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FXUS64 KBRO 142317 AAA AFDBRO

Area Forecast Discussion...UPDATED National Weather Service Brownsville TX 617 PM CDT Sun Apr 14 2024

New AVIATION

SHORT TERM
(Tonight through Monday night)
Issued at 159 PM CDT Sun Apr 14 2024

The center of a 500 mb ridge will remain to the south of Deep South Texas and the Rio Grande Valley through Monday night. This will keep the rain away for the area as a consequence and above average temperatures as well. Meanwhile, on the surface, low pressure over the Sierra Madre and high pressure over the Gulf of Mexico will continue to create a tight pressure gradient over the region. This will stir up breezy to windy conditions with stronger winds expected to occur in the Lower Rio Grande Valley tomorrow. However, the winds are not expected to be strong enough to require a Wind Advisory. The southeasterly winds will bring in low level moisture that will help foster the growth of clouds to the region.

As what is expected for the temperatures in the short term forecast period. Low temperatures tonight will be mostly in the 70s, but parts of the Northern Ranchlands will be in the upper 60s. Then for tomorrow night, the low temperatures will be in the lower 70s for the entire area. The high temperatures for tomorrow are expected to be in the 90s for most of the area, but locations along the coast and on island will be in the upper 80s.

LONG TERM
(Tuesday through next Sunday)
Issued at 159 PM CDT Sun Apr 14 2024

Key Messages:

* Dry, tranquil, very warm, and humid conditions will persist through much of the long-term period

* Next best chance for showers and thunderstorms will be Saturday Night into Sunday

A zonal to semi-zonal flow pattern aloft will continue through the long-term forecast period. At the surface, the lack of any advancing frontal boundaries on top of continued influences from a large surface high pressure system to our east will help to keep things dry and tranquil Tuesday into through Saturday.

Light to moderate winds out of the southeast will help to maintain very warm and humid airmass in place Tuesday through Saturday with daytime highs in the upper 80s to mid 90s and dewpoints in the lower 70s. Nights through this period will be warm and muggy with overnight lows in the lower 70s (similar to the dewpoint temps).

Saturday night into Sunday, global deterministic weather models and ensembles, particularly the ECMWF/ECE and Canadian/CMC are signaling at the potential showers and thunderstorms developing and sweeping across our area from north to south along and ahead of a cold front.
More salient details will be provided in the days ahead as we continue to monitor trends. That said, should the atmospheric dynamics/ingredients remain in place, there is the potential for some of these thunderstorms to become strong to severe Saturday night into Sunday.

AVIATION
(00Z TAFS)
Issued at 613 PM CDT Sun Apr 14 2024

MVFR conditions at BRO will prevail through the overnight hours.
HRL and MFE, while currently at VFR will fall to MVFR as well later this evening as low-level clouds move continue to move into the region. VFR is expected to return by mid to late Monday morning. Breezy southeasterly winds will continue overnight, and increase further by midday Monday with gusts to around 30 kts.

MARINE
Issued at 159 PM CDT Sun Apr 14 2024

Tonight through Monday Night...Low pressure over Mexico and high pressure over the Gulf will generate a tightened pressure gradient that will result in breezy winds and moderates seas along the Lower Texas Coast. A combination of Small Craft Exercise Caution and Small Craft Advisory will be need due to the adverse and hazardous conditions on the waters.

Tuesday through Sunday....Favorable marine conditions are expected through much of the long-term period with light to moderate winds and moderate seas. Tuesday through Tuesday night will be the only timeframe where there could be Small Craft Advisory to Small Craft Exercise Caution conditions due to wave heights over the Gulf Waters that will range between 4-7 feet. Showers and thunderstorms are possible over the Lower Texas Coastal Waters Saturday night into Sunday.

PRELIMINARY POINT TEMPS/POPS
BROWNSVILLE 72 84 73 88 / 0 0 0 0 HARLINGEN 70 88 72 91 / 0 0 0 0 MCALLEN 72 90 75 94 / 0 0 0 0 RIO GRANDE CITY 70 95 73 96 / 0 0 0 0 SOUTH PADRE ISLAND 73 78 73 79 / 0 0 0 0 BAYVIEW/PORT ISABEL 70 84 72 87 / 0 0 0 0

BRO WATCHES/WARNINGS/ADVISORIES
TX...None.
GM...Small Craft Advisory until 8 PM CDT this evening for GMZ130-132- 135.




Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesinHgDewPt
PTIT2 - 8779770 - Port Isabel, TX 0 mi43 min SE 14G18 74°F 74°F29.93
BZST2 3 mi43 min SE 13G15 73°F 71°F29.89
PCGT2 - 8779748 - South Padre Island CGS, TX 3 mi43 min ESE 12G13 73°F 73°F29.91
RLIT2 14 mi43 min SE 18G21 75°F 80°F29.92
PMNT2 36 mi43 min 74°F 80°F29.92


Wind History for Port Isabel, TX
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Airport Reports
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AirportDistAgeWind ktVisSkyWeatherTempDewPtRHinHg
KPIL PORT ISABELCAMERON COUNTY,TX 10 sm38 minSE 1310 smOvercast75°F72°F89%29.94
KBRO BROWNSVILLE/SOUTH PADRE ISLAND INTL,TX 15 sm18 minSE 1110 smMostly Cloudy75°F72°F89%29.94
Link to 5 minute data for KSPL


Wind History from SPL
(wind in knots)
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Tide / Current for Port Isabel, Texas
   
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Port Isabel
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Sun -- 01:29 AM CDT     Moonset
Sun -- 02:07 AM CDT     -0.27 feet Low Tide
Sun -- 07:06 AM CDT     Sunrise
Sun -- 11:51 AM CDT     Moonrise
Sun -- 01:31 PM CDT     1.63 feet High Tide
Sun -- 07:52 PM CDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Port Isabel, Texas, Tide feet
12
am
-0.1
1
am
-0.2
2
am
-0.3
3
am
-0.2
4
am
-0.1
5
am
0.1
6
am
0.4
7
am
0.7
8
am
0.9
9
am
1.2
10
am
1.4
11
am
1.5
12
pm
1.6
1
pm
1.6
2
pm
1.6
3
pm
1.6
4
pm
1.5
5
pm
1.4
6
pm
1.3
7
pm
1.2
8
pm
1.1
9
pm
0.9
10
pm
0.7
11
pm
0.5



Tide / Current for Matamoros, Tamaulipas, Mexico
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Matamoros
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Sun -- 12:30 AM CST     Moonset
Sun -- 01:00 AM CST     -0.41 feet Low Tide
Sun -- 06:07 AM CST     Sunrise
Sun -- 10:53 AM CST     Moonrise
Sun -- 12:20 PM CST     1.47 feet High Tide
Sun -- 06:53 PM CST     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Matamoros, Tamaulipas, Mexico, Tide feet
12
am
-0.4
1
am
-0.4
2
am
-0.4
3
am
-0.2
4
am
-0
5
am
0.3
6
am
0.5
7
am
0.8
8
am
1
9
am
1.2
10
am
1.4
11
am
1.4
12
pm
1.5
1
pm
1.5
2
pm
1.4
3
pm
1.4
4
pm
1.3
5
pm
1.2
6
pm
1.1
7
pm
1
8
pm
0.8
9
pm
0.6
10
pm
0.3
11
pm
0.1




Weather Map
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GEOS Local Image of gulf of mexico   
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Brownsville, TX,



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