Marine Weather and Tide Forecast for Port Mansfield, TX
 | Sunrise 7:29 AM Sunset 7:03 PM Moonrise 11:10 AM Moonset 9:28 PM |
Marine Forecasts
NOTE: Zones updated 4/16/2026. Some zones changed. Use Edit if needed.
GMZ132 Expires:202610160815;;156064 Fzus54 Kbro 151957 Cwfbro
coastal waters forecast for the lower texas coast national weather service brownsville tx 257 pm cdt Thu oct 15 2026
lower texas coastal waters from baffin bay to the mouth of the rio grande out 60 nm.
seas are provided as a range of the average height of the highest 1/3 of the waves, along with the occasional height of the average highest 10 percent of the waves.
gmz130-132-135-160815- 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- 257 pm cdt Thu oct 15 2026
.gale warning in effect from Friday morning through Saturday afternoon - .
Rest of today - Southeast winds around 10 knots. Light chop on the bay.
Tonight - East winds 5 to 10 knots, becoming southeast after midnight, then becoming northeast early in the morning. Light chop on the bay, diminishing to smooth after midnight.
Friday - North winds 5 to 10 knots, increasing to 25 to 30 knots with gusts up to 40 knots. Light chop on the bay, increasing to very rough. A chance of showers late in the morning. A chance of showers with a slight chance of Thunderstorms in the afternoon.
Friday night - North winds 25 to 30 knots with gusts up to 40 knots. Very rough on the bay.
Saturday - North winds 20 to 25 knots with gusts up to 35 knots. Rough on the bay.
Saturday night - North winds 15 to 20 knots, diminishing to 10 to 15 knots in the late evening and early morning, then increasing to 15 to 20 knots early in the morning. Choppy on the bay, diminishing to a moderate chop in the late evening and early morning, then increasing to choppy early in the morning.
Sunday - North winds 15 to 20 knots, diminishing to 10 to 15 knots in the afternoon, then becoming northeast late in the afternoon. Choppy on the bay, diminishing to a moderate chop in the afternoon.
Sunday night - Northeast winds 10 to 15 knots, diminishing to 5 to 10 knots in the late evening and overnight. A moderate chop on the bay, diminishing to light chop in the late evening and overnight.
Monday - Northeast winds 5 to 10 knots. Light chop on the bay.
Monday night - Northeast winds 5 to 10 knots. Light chop on the bay. A slight chance of showers.
winds and waves higher in and near Thunderstorms.
coastal waters forecast for the lower texas coast national weather service brownsville tx 257 pm cdt Thu oct 15 2026
lower texas coastal waters from baffin bay to the mouth of the rio grande out 60 nm.
seas are provided as a range of the average height of the highest 1/3 of the waves, along with the occasional height of the average highest 10 percent of the waves.
gmz130-132-135-160815- 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- 257 pm cdt Thu oct 15 2026
winds and waves higher in and near Thunderstorms.
GMZ100 257 Pm Cdt Thu Oct 15 2026
Synopsis - A strong cold front arriving on Friday quickly deteriorates seas to very rough as gentle to moderate southeasterly winds become northerly and at gale-force by early Friday evening. Brief rounds of showers and Thunderstorms are likely along the front as well. Conditions gradually improve throughout Saturday.
7 Day Forecast for Marine Location Near Port Mansfield, TX
NEW! Add second zone forecast
| Padre Island Click for Map Thu -- 07:28 AM CDT Sunrise Thu -- 11:51 AM CDT 0.40 feet Low Tide Thu -- 12:09 PM CDT Moonrise Thu -- 07:00 PM CDT Sunset Thu -- 10:19 PM CDT 2.05 feet High Tide Thu -- 10:27 PM CDT Moonset Tide / Current data from XTide NOT FOR NAVIGATION |
Padre Island, Port Mansfield Channel ent., Texas, Tide feet
| 12 am |
| 2 |
| 1 am |
| 1.9 |
| 2 am |
| 1.9 |
| 3 am |
| 1.8 |
| 4 am |
| 1.7 |
| 5 am |
| 1.6 |
| 6 am |
| 1.4 |
| 7 am |
| 1.2 |
| 8 am |
| 1 |
| 9 am |
| 0.7 |
| 10 am |
| 0.5 |
| 11 am |
| 0.4 |
| 12 pm |
| 0.4 |
| 1 pm |
| 0.5 |
| 2 pm |
| 0.6 |
| 3 pm |
| 0.8 |
| 4 pm |
| 1.1 |
| 5 pm |
| 1.4 |
| 6 pm |
| 1.7 |
| 7 pm |
| 1.9 |
| 8 pm |
| 2 |
| 9 pm |
| 2 |
| 10 pm |
| 2.1 |
| 11 pm |
| 2.1 |
| ICW Laguna Madre Click for Map Flood direction 347 true Ebb direction 164 true Thu -- 02:05 AM CDT 0.32 knots Max Flood Thu -- 07:28 AM CDT Sunrise Thu -- 12:08 PM CDT Moonrise Thu -- 12:29 PM CDT -0.00 knots Slack Thu -- 06:51 PM CDT -0.28 knots Max Ebb Thu -- 07:01 PM CDT Sunset Thu -- 10:28 PM CDT Moonset Thu -- 10:57 PM CDT 0.00 knots Slack Tide / Current data from XTide NOT FOR NAVIGATION |
ICW Laguna Madre, 2.25 nmi S of Arroyo Colorado Cut (depth 3 ft), Texas Current, knots
| 12 am |
| 0.2 |
| 1 am |
| 0.3 |
| 2 am |
| 0.3 |
| 3 am |
| 0.3 |
| 4 am |
| 0.3 |
| 5 am |
| 0.3 |
| 6 am |
| 0.3 |
| 7 am |
| 0.2 |
| 8 am |
| 0.2 |
| 9 am |
| 0.2 |
| 10 am |
| 0.2 |
| 11 am |
| 0.1 |
| 12 pm |
| 0 |
| 1 pm |
| -0 |
| 2 pm |
| -0.1 |
| 3 pm |
| -0.2 |
| 4 pm |
| -0.2 |
| 5 pm |
| -0.2 |
| 6 pm |
| -0.3 |
| 7 pm |
| -0.3 |
| 8 pm |
| -0.3 |
| 9 pm |
| -0.2 |
| 10 pm |
| -0.1 |
| 11 pm |
| 0 |
FXUS64 KBRO 151723 AFDBRO
Area Forecast Discussion National Weather Service Brownsville TX 1223 PM CDT Thu Oct 15 2026
New DISCUSSION, AVIATION, MARINE
KEY MESSAGES
Updated at 1209 PM CDT Thu Oct 15 2026
- A cold front Friday will bring strong winds, cooler temperatures, and multiple marine, beach, and wind hazards Friday into Saturday.
- Peak wind gusts Friday night approach 50 mph or higher. Any wildfire that can develop would quickly become dangerous in these conditions, with erratic growth and spread.
- Brief low to medium rain chances are expected Friday along the front, with greatest chances (30-50%) along the immediate coast and dry weather returning into early next week.
DISCUSSION
Issued at 1209 PM CDT Thu Oct 15 2026
A cold front arrives Friday with strong northerly winds, especially by late Friday evening. Expect a brief chance of rain with the frontal passage, then mostly dry conditions into early next week. RH levels behind the front drop to 25-45 percent across the ranchlands and along and west of US-281/I-69C in the RGV, with little to no recovery Friday night. The combination of these RH values with 20 foot winds of 15-20 mph and surface gusts to 45-55 mph will present an elevated threat of wildfire growth and erratic spread. A Fire Weather Watch has been issued and ultimately a Fire Danger Statement or Red Flag Warning will be needed.
As for the winds, there remains a low (10 percent) chance of wind gusts of 55 mph or more late Friday evening into Saturday morning. Most likely winds of 20-30 mph with gusts 35-45 mph are expected Friday afternoon into Saturday afternoon. A Wind Advisory has been issued and a High Wind Warning may be needed for those peak gusts Friday night, if confidence increases. Along the coast, strong winds and the reinforcing push behind the front Friday evening will drive tidal runup and potential beach erosion at high tides through the weekend, dangerous surf, and life- threatening rip currents. A High Surf Advisory, Coastal Flood Advisory, and Rip Current Statement are all in effect. A Coastal Flood Warning may be needed.
As for temperatures, expect a comfortable drop into the 50s each morning with highs in the 70s over the weekend gradually warming into next week.
AVIATION
(18Z TAFS)
Issued at 1209 PM CDT Thu Oct 15 2026
VFR conditions are expected to prevail through the TAF period with a strong front arriving Friday, with gusty winds following Friday afternoon and especially beyond this TAF period into Friday night.
There may be a shower or thunderstorm with the frontal passage, with confidence too low in any direct impacts to aerodromes at this time.
MARINE
Issued at 1209 PM CDT Thu Oct 15 2026
Southeasterly winds continue into early Friday before a strong cold front arrives with strong northerly winds through Saturday morning. The Gale Watch was replaced with a Gale Warning and Small Craft Advisories may be needed after the gale force winds diminish Saturday into Sunday, with conditions improving into early next week. There remains a chance of showers and thunderstorms with the frontal passage and a return of rain chances on Tuesday.
PRELIMINARY POINT TEMPS/POPS
BROWNSVILLE 74 86 62 72 / 0 30 10 0 HARLINGEN 71 84 59 73 / 0 30 0 0 MCALLEN 74 85 60 74 / 0 20 0 0 RIO GRANDE CITY 72 80 57 75 / 0 30 0 0 SOUTH PADRE ISLAND 78 82 68 71 / 0 50 20 10 BAYVIEW/PORT ISABEL 73 83 62 72 / 0 40 10 0
BRO WATCHES/WARNINGS/ADVISORIES
TX...Fire Weather Watch from Friday afternoon through Saturday morning for TXZ248>255-353.
Wind Advisory from 1 PM Friday to 7 AM CDT Saturday for TXZ250- 251-253>255-353.
Wind Advisory from 10 AM Friday to 1 PM CDT Saturday for TXZ351- 354-355-451-454-455.
High Rip Current Risk from Friday morning through Sunday morning for TXZ451-454-455.
Coastal Flood Advisory from 1 PM Friday to 7 AM CDT Sunday for TXZ451-454-455.
High Surf Advisory from 1 PM Friday to 7 AM CDT Sunday for TXZ451-454-455.
GM...Gale Warning from 10 AM Friday to 1 PM CDT Saturday for GMZ130- 132-135-150-155-170-175.
Area Forecast Discussion National Weather Service Brownsville TX 1223 PM CDT Thu Oct 15 2026
New DISCUSSION, AVIATION, MARINE
KEY MESSAGES
Updated at 1209 PM CDT Thu Oct 15 2026
- A cold front Friday will bring strong winds, cooler temperatures, and multiple marine, beach, and wind hazards Friday into Saturday.
- Peak wind gusts Friday night approach 50 mph or higher. Any wildfire that can develop would quickly become dangerous in these conditions, with erratic growth and spread.
- Brief low to medium rain chances are expected Friday along the front, with greatest chances (30-50%) along the immediate coast and dry weather returning into early next week.
DISCUSSION
Issued at 1209 PM CDT Thu Oct 15 2026
A cold front arrives Friday with strong northerly winds, especially by late Friday evening. Expect a brief chance of rain with the frontal passage, then mostly dry conditions into early next week. RH levels behind the front drop to 25-45 percent across the ranchlands and along and west of US-281/I-69C in the RGV, with little to no recovery Friday night. The combination of these RH values with 20 foot winds of 15-20 mph and surface gusts to 45-55 mph will present an elevated threat of wildfire growth and erratic spread. A Fire Weather Watch has been issued and ultimately a Fire Danger Statement or Red Flag Warning will be needed.
As for the winds, there remains a low (10 percent) chance of wind gusts of 55 mph or more late Friday evening into Saturday morning. Most likely winds of 20-30 mph with gusts 35-45 mph are expected Friday afternoon into Saturday afternoon. A Wind Advisory has been issued and a High Wind Warning may be needed for those peak gusts Friday night, if confidence increases. Along the coast, strong winds and the reinforcing push behind the front Friday evening will drive tidal runup and potential beach erosion at high tides through the weekend, dangerous surf, and life- threatening rip currents. A High Surf Advisory, Coastal Flood Advisory, and Rip Current Statement are all in effect. A Coastal Flood Warning may be needed.
As for temperatures, expect a comfortable drop into the 50s each morning with highs in the 70s over the weekend gradually warming into next week.
AVIATION
(18Z TAFS)
Issued at 1209 PM CDT Thu Oct 15 2026
VFR conditions are expected to prevail through the TAF period with a strong front arriving Friday, with gusty winds following Friday afternoon and especially beyond this TAF period into Friday night.
There may be a shower or thunderstorm with the frontal passage, with confidence too low in any direct impacts to aerodromes at this time.
MARINE
Issued at 1209 PM CDT Thu Oct 15 2026
Southeasterly winds continue into early Friday before a strong cold front arrives with strong northerly winds through Saturday morning. The Gale Watch was replaced with a Gale Warning and Small Craft Advisories may be needed after the gale force winds diminish Saturday into Sunday, with conditions improving into early next week. There remains a chance of showers and thunderstorms with the frontal passage and a return of rain chances on Tuesday.
PRELIMINARY POINT TEMPS/POPS
BROWNSVILLE 74 86 62 72 / 0 30 10 0 HARLINGEN 71 84 59 73 / 0 30 0 0 MCALLEN 74 85 60 74 / 0 20 0 0 RIO GRANDE CITY 72 80 57 75 / 0 30 0 0 SOUTH PADRE ISLAND 78 82 68 71 / 0 50 20 10 BAYVIEW/PORT ISABEL 73 83 62 72 / 0 40 10 0
BRO WATCHES/WARNINGS/ADVISORIES
TX...Fire Weather Watch from Friday afternoon through Saturday morning for TXZ248>255-353.
Wind Advisory from 1 PM Friday to 7 AM CDT Saturday for TXZ250- 251-253>255-353.
Wind Advisory from 10 AM Friday to 1 PM CDT Saturday for TXZ351- 354-355-451-454-455.
High Rip Current Risk from Friday morning through Sunday morning for TXZ451-454-455.
Coastal Flood Advisory from 1 PM Friday to 7 AM CDT Sunday for TXZ451-454-455.
High Surf Advisory from 1 PM Friday to 7 AM CDT Sunday for TXZ451-454-455.
GM...Gale Warning from 10 AM Friday to 1 PM CDT Saturday for GMZ130- 132-135-150-155-170-175.
| Stations | Dist | Age | Wind | Air | Water | Waves | inHg | DewPt |
| PMNT2 | 2 mi | 44 min | 29.89 | |||||
| RSJT2 - 8777812 - Rincon del San Jose; Potrero Lopeno SW, TX | 18 mi | 44 min | SE 12G | 86°F | 29.90 | |||
| RLIT2 | 20 mi | 44 min | SE 9.9G | 29.89 | ||||
| BZST2 | 35 mi | 44 min | ESE 8.9G | 84°F | 29.86 | |||
| PCGT2 - 8779748 - South Padre Island CGS, TX | 35 mi | 44 min | E 8G | 87°F | 29.88 | |||
| PTIT2 - 8779770 - Port Isabel, TX | 35 mi | 44 min | ESE 8.9G | 86°F | 29.90 |
Wind History for Rincon Del San Jose, TX
toggle option: (graph/table)
Link to 5 hour of 5 minute data for KHRL
Terminal Aerodrome Forecast (TAF) for KHRL
Wind History Graph: HRL
(wind in knots)
GEOS Local Image of gulf of mexico
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Brownsville, TX,
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