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Marine Weather and Tide Forecast for Laguna Vista, TX


March 16, 2026 5:19 PM CDT (22:19 UTC)
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Sunrise 7:38 AM   Sunset 7:39 PM
Moonrise 5:09 AM   Moonset 4:33 PM 
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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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NOTE: Zones were updated 3/20/2025. If your report is out of date, please click Edit
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- 455 Pm Cdt Mon Mar 16 2026

.small craft advisory in effect through Tuesday morning - .

Today - North winds 25 to 35 knots, diminishing to 20 to 25 knots with gusts up to 35 knots. Very rough on the bay, diminishing to rough.

Tonight - North winds 15 to 20 knots, becoming northeast 10 to 15 knots in the late evening and overnight. Choppy on the bay, diminishing to a moderate chop in the late evening and overnight.

Tuesday - Northeast winds 10 to 15 knots, becoming east in the afternoon. Light chop on the bay.

Tuesday night - Southeast winds 10 to 15 knots, diminishing to 5 to 10 knots after midnight. Light chop on the bay.

Wednesday - Southeast winds 5 to 10 knots, increasing to 10 to 15 knots in the afternoon. A moderate chop on the bay.

Wednesday night - Southeast winds 10 to 15 knots, diminishing to 5 to 10 knots after midnight. A moderate chop on the bay, diminishing to light chop after midnight.

Thursday - Southeast winds around 5 knots, becoming 5 to 10 knots in the afternoon. Light chop on the bay.

Thursday night - Southeast winds 10 to 15 knots, diminishing to 5 to 10 knots in the late evening and early morning, then becoming south early in the morning. A moderate chop on the bay, diminishing to light chop in the late evening and early morning, then diminishing to smooth early in the morning.

Friday - South winds around 5 knots, becoming southeast early in the afternoon, then increasing to 10 to 15 knots late in the afternoon. Smooth on the bay, increasing to light chop early in the afternoon, then increasing to a moderate chop late in the afternoon.

Friday night - Southeast winds 10 to 15 knots, becoming south 5 to 10 knots after midnight. A moderate chop on the bay, diminishing to light chop early in the morning.
GMZ100 455 Pm Cdt Mon Mar 16 2026

Synopsis - Strong winds and rough seas decrease to moderate overnight as the pressure gradient relaxes. Tonight, adverse conditions continue, and a small craft advisory is in effect until 7 am. Wednesday onward, slight seas and south-southeasterly flow will persist.

7 Day Forecast for Marine Location Near Laguna Vista, TX
   
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Tide / Current for Port Isabel, Laguna Madre, Texas
  
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Port Isabel
Click for Map
Mon -- 06:08 AM CDT     Moonrise
Mon -- 07:36 AM CDT     Sunrise
Mon -- 08:36 AM CDT     -0.02 feet Low Tide
Mon -- 04:50 PM CDT     1.11 feet High Tide
Mon -- 05:33 PM CDT     Moonset
Mon -- 07:38 PM CDT     Sunset
Mon -- 09:31 PM CDT     0.93 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
        
  Sorry, Port Isabel, Laguna Madre, Texas does not exist in database. Press Edit above and select a valid nearby location.

Port Isabel, Laguna Madre, Texas, Tide feet
12
am
1
1
am
1
2
am
0.9
3
am
0.8
4
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0.6
5
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0.4
6
am
0.3
7
am
0.1
8
am
-0
9
am
-0
10
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0.1
11
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0.2
12
pm
0.4
1
pm
0.7
2
pm
0.9
3
pm
1
4
pm
1.1
5
pm
1.1
6
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1.1
7
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1
8
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1
9
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0.9
10
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0.9
11
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1

Tide / Current for ICW Laguna Madre, Light 69 (depth 4 ft), Texas Current
  
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ICW Laguna Madre
Click for Map Flood direction 333 true
Ebb direction 147 true

Mon -- 01:48 AM CDT     -0.00 knots Slack
Mon -- 06:08 AM CDT     Moonrise
Mon -- 07:36 AM CDT     Sunrise
Mon -- 08:17 AM CDT     -0.79 knots Max Ebb
Mon -- 11:59 AM CDT     0.00 knots Slack
Mon -- 03:25 PM CDT     0.92 knots Max Flood
Mon -- 05:33 PM CDT     Moonset
Mon -- 07:38 PM CDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
        
  Sorry, ICW Laguna Madre, Light 69 (depth 4 ft), Texas Current does not exist in database. Press Edit above and select a valid nearby location.

ICW Laguna Madre, Light 69 (depth 4 ft), Texas Current, knots
12
am
0.3
1
am
0.2
2
am
-0
3
am
-0.3
4
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-0.5
5
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-0.6
6
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-0.6
7
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-0.7
8
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-0.8
9
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-0.8
10
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-0.6
11
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-0.4
12
pm
0
1
pm
0.5
2
pm
0.8
3
pm
0.9
4
pm
0.9
5
pm
0.9
6
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0.8
7
pm
0.8
8
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0.7
9
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0.6
10
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0.6
11
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0.4

Area Discussion for Brownsville, TX
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NOTE: mouseover dotted underlined text for definition
FXUS64 KBRO 161759 AFDBRO

Area Forecast Discussion National Weather Service Brownsville TX 1259 PM CDT Mon Mar 16 2026

New DISCUSSION, AVIATION, MARINE

KEY MESSAGES
Updated at 1217 PM CDT Mon Mar 16 2026

Key Messages:

* Critical fire weather conditions are in place across inland Deep South Texas today.

* Hazardous marine/coastal conditions today improve by Tuesday morning.

* Under mostly rain-free skies, temperatures climb through the week, returning to above average for the weekend.

DISCUSSION
Issued at 1217 PM CDT Mon Mar 16 2026

Dry air will continue funneling in behind the trough that brought last nights cold front as it ejects over East CONUS. Gusty winds will continue to lessen through this afternoon, becoming around 5-10 mph overnight. Dry air and gusty winds support critical fire weather conditions through this evening, with a Red Flag Warning in place until 7 PM. Tomorrow, gentler winds preclude issuance of a Red Flag Warning, but a Fire Danger Statement may be necessary with minimum relative humidity less than 20% in Jim Hogg and Zapata County (less than 30% inland).

At local South Texas beaches, you will find hazardous swimming conditions for the remainder of Monday and Monday night. There is a High Surf Advisory and High Risk of Rip Currents through 7 AM Tuesday morning.

Below average temperatures Tuesday, with morning lows in the 40s across much of the area, and around 50 in the low-mid RGV and along the coast. Tuesday highs forecast to be a touch warmer than Monday's in the low to mid 70s across deep South Texas. Winds begin to shift easterly, returning to southerly by midweek, breezy each afternoon. Ridging in the desert southwest will build through the week, returning above-normal high temperatures late week through the weekend.

AVIATION
(18Z TAFS)
Issued at 1217 PM CDT Mon Mar 16 2026

VFR conditions prevail at all sites for the 18Z TAF cycle. Gusty northerly winds will decrease through the afternoon, becoming 5-10 kts overnight.

MARINE
Issued at 1217 PM CDT Mon Mar 16 2026

Unfavorable conditions will gradually lessen tonight as the pressure gradient relaxes. A Gale Warning is in place through 7 PM this evening for all Lower Texas Coastal Waters. Tonight, adverse conditions continue, and a Small Craft Advisory will likely be issued following the Gale Warning. Winds 20-25 kts and rough seas decrease to moderate overnight. Wednesday through the weekend, slight seas and southerly to onshore flow will persist.

PRELIMINARY POINT TEMPS/POPS
BROWNSVILLE 66 53 71 56 / 10 10 10 0 HARLINGEN 68 48 73 51 / 0 10 0 0 MCALLEN 71 50 76 55 / 0 10 0 0 RIO GRANDE CITY 70 48 75 51 / 0 0 0 0 SOUTH PADRE ISLAND 64 58 66 61 / 0 10 0 0 BAYVIEW/PORT ISABEL 66 53 70 56 / 0 10 0 0

BRO WATCHES/WARNINGS/ADVISORIES
TX...Red Flag Warning until 7 PM CDT this evening for TXZ248>255-351- 353>355.

Wind Advisory until 1 PM CDT this afternoon for TXZ250-251- 253>255-351-353>355-451-454-455.

High Rip Current Risk through Tuesday morning for TXZ451-454-455.

High Surf Advisory until 7 AM CDT Tuesday for TXZ451-454-455.

GM...Gale Warning until 7 PM CDT this evening 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 6 mi50 minN 19G23 58°F 73°F30.19
BZST2 8 mi50 minN 25G27 57°F 71°F30.15
PCGT2 - 8779748 - South Padre Island CGS, TX 8 mi50 minN 12G21 58°F 70°F30.17
RLIT2 8 mi50 minN 20G23 58°F 30.19
PMNT2 30 mi50 min 60°F 30.19
RSJT2 - 8777812 - Rincon del San Jose; Potrero Lopeno SW, TX 47 mi50 minNNE 15G22 60°F 67°F30.19


Wind History for Port Isabel, TX
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GEOS Local Image of gulf of mexico  
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Brownsville, TX,





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