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

June 20, 2024 12:45 PM CDT (17:45 UTC) Change Location
Sunrise 6:37 AM   Sunset 8:25 PM
Moonrise 6:32 PM   Moonset 4:05 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.

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- 920 Am Cdt Thu Jun 20 2024

.small craft advisory in effect through Friday morning - .

Rest of today - East winds 25 to 30 knots, diminishing to 20 to 25 knots late this afternoon. Very rough on the bay, diminishing to rough late this afternoon. A chance of showers and Thunderstorms late this morning, then showers and Thunderstorms likely this afternoon.

Tonight - East winds 20 to 25 knots with gusts up to 30 knots, diminishing to 15 to 20 knots with gusts up to 30 knots after midnight. Rough on the bay, diminishing to choppy after midnight. A chance of Thunderstorms. Showers likely, mainly in the evening.

Friday - East winds 15 to 20 knots. Choppy on the bay. Showers with a chance of Thunderstorms.

Friday night - East winds 10 to 15 knots. A moderate chop on the bay. A chance of Thunderstorms. Showers.

Saturday - East winds 10 to 15 knots. A moderate chop on the bay. A chance of Thunderstorms. Showers.

Saturday night - East winds 10 to 15 knots. A moderate chop on the bay. A chance of Thunderstorms. Showers likely.

Sunday - East winds 10 to 15 knots. A moderate chop on the bay. Showers with a chance of Thunderstorms.

Sunday night - East winds 10 to 15 knots, diminishing to 5 to 10 knots early in the morning. A moderate chop on the bay, diminishing to light chop early in the morning. A chance of Thunderstorms.

Monday - East winds 5 to 10 knots, increasing to 10 to 15 knots in the afternoon. A moderate chop on the bay. A chance of Thunderstorms. Showers.

Monday night - Southeast winds 10 to 15 knots. A moderate chop on the bay. Showers likely with a chance of Thunderstorms in the evening, then a chance of showers with a slight chance of Thunderstorms after midnight.
winds and waves higher in and near Thunderstorms.

GMZ100 920 Am Cdt Thu Jun 20 2024

Synopsis - Strong to fresh east to southeast flow continues through Friday morning in wake of tropical storm alberto. A moderate onshore flow persist through the weekend with seas slow to subside. Small craft advisories are likely to persist over the gulf waters until the seas lower which may not be until late Saturday. Mariners will need to Monitor the weather forecast for the possibility of another tropical low pressure system that is expected to develop and move into the southern gulf of mexico as early as Saturday night. National hurricane center has a 20 percent chance of tropical cyclone formation in the next 2 days and 50 percent in 7 days.


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 201735 AAB AFDBRO

Area Forecast Discussion...UPDATED National Weather Service Brownsville TX 1235 PM CDT Thu Jun 20 2024

New UPDATE, AVIATION

UPDATE
Issued at 1225 PM CDT Thu Jun 20 2024

The wind advisory was allowed to expire earlier this morning and the Flood Watch will also be allowed to expire at 1 PM. The scattered showers noted over Deep South Texas are moving west at 20-30 mph and with rainfall rates 1-2 inches/hr widespread flooding is not expected. However, brief nuisance street flooding is not out of the question if training cells occur over any particular area.



SHORT TERM
(Today through Friday)
Issued at 359 AM CDT Thu Jun 20 2024

Tropical Storm Alberto will continue to be a factor for the short term period. As the system makes landfall it will begin to weaken, allowing winds to subside slightly. Showers and thunderstorms are expected to continue into the day, as the last of the rain bands move onshore. Seas are expected to remain elevated through the period, and will likely continue to produce coastal hazards in the form of coastal flooding, high risk of rip currents, and high surf.

Some lingering tropical moisture looks to keep rain chances elevated through the remainder of the period. The additional rainfall could continue to support a threat for flash flooding through the period. The WPC has a slight risk of excessive rainfall across Deep South Texas today, and a marginal risk Friday.

LONG TERM
(Friday night through Wednesday)
Issued at 359 AM CDT Thu Jun 20 2024

Upper-level high pressure over the southern US will continue to funnel additional tropical moisture towards Deep South Texas.
Model guidance is continuing to suggest another tropical system developing over the Southern Gulf this weekend, and the NHC has a 50% chance for tropical cyclone development within the next 7 days. If this system does end up developing, we could see additional rainfall by early next week. Conditions look to finally dry out by the end of the period, with heat taking back over, potentially warranting heat advisories.

AVIATION
(18Z TAFS)
Issued at 1225 PM CDT Thu Jun 20 2024

Scattered showers through the afternoon with a few thunderstorms are possible. Scattered to Broken cloud cover to maintain general VFR to occasional MVFR ceilings. Showers activity is expected to taper off in overall coverage but conditions to remain active for on and off shower activity through Saturday. East winds remain gusty with gusts 25-30kts through 21/00Z. Winds steadily drop off through the evening and overnight.

MARINE
Issued at 359 AM CDT Thu Jun 20 2024

Hazardous marine conditions will continue today. As Tropical Storm Alberto moves onshore, winds are expected to continue to decrease through the day, allowing seas to begin subsiding. Light to moderate winds and moderate seas are expected to return by the end of the weekend and remain through the period. However, there is some potential for another tropical system to develop in the Southern Gulf this weekend, which could drastically change the forecast. The NHC has a 50% chance for tropical cyclone formation in the next 7-days.

PRELIMINARY POINT TEMPS/POPS
BROWNSVILLE 91 80 92 78 / 90 60 80 50 HARLINGEN 89 76 92 75 / 90 50 70 50 MCALLEN 89 78 92 76 / 90 60 60 40 RIO GRANDE CITY 88 77 90 75 / 90 70 70 30 SOUTH PADRE ISLAND 88 83 87 81 / 80 60 70 50 BAYVIEW/PORT ISABEL 90 80 89 78 / 80 60 70 50

BRO WATCHES/WARNINGS/ADVISORIES
TX...Flood Watch until 1 PM CDT this afternoon for TXZ248>255-351- 353>355-451-454-455.

Coastal Flood Warning until 7 PM CDT this evening for TXZ351-354- 355-451-454-455.

High Rip Current Risk through Friday evening for TXZ451-454-455.

High Surf Warning until 7 PM CDT this evening for TXZ451-454-455.

GM...Small Craft Advisory until 7 AM CDT Friday for GMZ130-132-135- 150-155-170-175.




Weather Reporting Stations
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Stations Dist Age Wind AirWater WavesinHgDewPt
PTIT2 - 8779770 - Port Isabel, TX 0 mi57 minE 17G23 85°F 86°F29.87
BZST2 3 mi57 minE 25G30 85°F 86°F29.82
PCGT2 - 8779748 - South Padre Island CGS, TX 3 mi57 minE 20G29 86°F 86°F29.85
RLIT2 14 mi57 minE 25G31 85°F 83°F29.87
PMNT2 36 mi57 min 83°F 85°F29.88


Wind History for Port Isabel, TX
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Airport Reports
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AirportDistAgeWind ktVisSkyWeatherAirDewPtRHinHg
KPIL PORT ISABELCAMERON COUNTY,TX 10 sm36 minE 20G3310 smMostly Cloudy Lt Rain 90°F79°F71%29.89
KBRO BROWNSVILLE/SOUTH PADRE ISLAND INTL,TX 15 sm52 minE 22G3210 smMostly Cloudy91°F81°F71%29.87
Link to 1 hour of 5 minute data for KSPL
   
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Wind History graph: SPL
(wind in knots)
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Tide / Current for Port Isabel, Texas
   
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Port Isabel
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Thu -- 05:04 AM CDT     Moonset
Thu -- 06:37 AM CDT     Sunrise
Thu -- 06:47 AM CDT     1.50 feet High Tide
Thu -- 07:32 PM CDT     Moonrise
Thu -- 08:23 PM CDT     Sunset
Thu -- 09:07 PM CDT     -0.63 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Port Isabel, Texas, Tide feet
12
am
0.2
1
am
0.5
2
am
0.8
3
am
1.1
4
am
1.3
5
am
1.4
6
am
1.5
7
am
1.5
8
am
1.5
9
am
1.4
10
am
1.3
11
am
1.2
12
pm
1.1
1
pm
1
2
pm
0.9
3
pm
0.7
4
pm
0.4
5
pm
0.2
6
pm
-0.1
7
pm
-0.4
8
pm
-0.6
9
pm
-0.6
10
pm
-0.6
11
pm
-0.4


Tide / Current for Matamoros, Tamaulipas, Mexico
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Matamoros
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Thu -- 04:06 AM CST     Moonset
Thu -- 05:06 AM CST     1.45 feet High Tide
Thu -- 05:39 AM CST     Sunrise
Thu -- 06:33 PM CST     Moonrise
Thu -- 07:24 PM CST     Sunset
Thu -- 07:54 PM CST     -0.62 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Matamoros, Tamaulipas, Mexico, Tide feet
12
am
0.5
1
am
0.8
2
am
1.1
3
am
1.3
4
am
1.4
5
am
1.5
6
am
1.4
7
am
1.4
8
am
1.3
9
am
1.2
10
am
1.2
11
am
1.1
12
pm
1
1
pm
0.9
2
pm
0.7
3
pm
0.4
4
pm
0.1
5
pm
-0.1
6
pm
-0.4
7
pm
-0.6
8
pm
-0.6
9
pm
-0.5
10
pm
-0.4
11
pm
-0.1


Weather Map
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GEOS Local Image of SouthCentralPlains   
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Brownsville, TX,




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