Baffin Bay to Port Mansfield, TX 20 - 60 NM Marine Forecast
| Tonight...Southeast Winds 10 To 15 Knots. Seas 3 To 4 Feet. Wave Detail: Southeast 3 Feet At 6 Seconds. |
| Friday...Southeast Winds 5 To 10 Knots. Seas 2 To 3 Feet. Wave Detail: Southeast 3 Feet At 6 Seconds. A Slight Chance Of Showers And Thunderstorms Early In The Afternoon. |
| Friday Night...Southeast Winds 5 To 10 Knots. Seas 2 To 4 Feet. Wave Detail: Southeast 3 Feet At 6 Seconds. A Slight Chance Of Showers And Thunderstorms Early In The Morning. |
| Saturday...East Winds 5 To 10 Knots. Seas 2 To 3 Feet. Wave Detail: East 3 Feet At 6 Seconds. A Chance Of Showers With A Slight Chance Of Thunderstorms. |
| Saturday Night...East Winds Around 10 Knots, Becoming Southeast After Midnight. Seas 2 To 3 Feet. Wave Detail: East 3 Feet At 6 Seconds. A Chance Of Showers Early In The Evening. A Chance Of Showers After Midnight. A Slight Chance Of Thunderstorms Early In The Morning. |
| Sunday...Southeast Winds 5 To 10 Knots. Seas 2 To 3 Feet. Wave Detail: East 2 Feet At 6 Seconds. A Chance Of Showers And Thunderstorms Until Late Afternoon. |
| Sunday Night...Southeast Winds 10 To 15 Knots, Becoming South After Midnight. Seas 2 To 4 Feet. A Slight Chance Of Showers And Thunderstorms After Midnight. |
| Monday...South Winds Around 10 Knots. Seas 2 To 3 Feet. A Slight Chance Of Showers And Thunderstorms In The Morning. |
| Monday Night...Southeast Winds 10 To 15 Knots. Seas 2 To 4 Feet. |
| Tuesday...Southeast Winds 10 To 15 Knots. Seas 3 To 4 Feet. |
| Tuesday Night...Southeast Winds 10 To 15 Knots. Seas 2 To 4 Feet. Winds And Seas Higher In And Near Thunderstorms. |
| Area Forecast Discussion National Weather Service Brownsville TX 135pm CDT Thu August 6 2026 ...NewARINE... .KEY MESSAGES... Updated at 129pm CDT Thu August 6 2026 - A Special Weather Statement (SPS) is in effect across inland deep south Texas today for heat indices of 105-110 F. - Daily low rain chances each afternoon along the seabreeze through Sunday. - Moderate to major heat risks (levels 2 and 3 of 4) today become minor (1 of 4) to moderate Friday through Sunday. Heat Risk returns to major early next week. - A medium risk of life-threatening rip currents continues through Thursday afternoon. Issued at 129pm CDT Thu August 6 2026 Clearing clouds near the southeast coast after showers this morning are allowing temps to climb under daytime heating. A Special Weather Statement (SPS) is in effect for all of deep South Texas until 6pm for heat indices of 105-110, where a few locations may briefly reach or surpass 111. Sandwiched between a Bermuda high over the eastern Gulf and high pressure over the desert SW will keep the forecast mostly copacetic. Shortwaves riding along the periphery of these highs will allow for increased shower and thunderstorm chances along the sea breeze each day over the weekend. Rain chances remain generally low at 20% or less each afternoon, limited primarily east of US281. Deep moisture will continue to increase through the weekend with easterly flow aloft, with the highest rain chances (still low, around 30%) expected Sunday. These showers may bring briefly heavy rain, lightning, and gusty winds. Widespread rainfall amounts are not expected to exceed a half an inch, but locally higher amounts are possible under heavy showers, or areas under training storms. Increased moisture, cloud cover and any rain will help to limit apparent temperatures this weekend with a reduced risk (minor to moderate) of heat related illness. This sounds pleasant, but guidance still suggests up to a sticky 110 heat index this weekend. Ridging expands over TX early next week, returning southerly flow aloft and drier mid-levels. This will limit rain chances into the workweek, but will allow for heat to increase yet again. By early next workweek, Moderate to Major risk of heat- related illness returns. Marine Issued at 129pm CDT Thu August 6 2026 Showers and thunderstorms over the Gulf are possible each day through the weekend, with chances increasing from low today (20%), peaking at low to moderate (30-50%) Sunday morning. Generally southeasterly to onshore moderate to gentle flow with slight seas will persist, with breezy conditions along the nearshore and Laguna Madre each afternoon. Flow strengthens next week to a more consistent moderate, and may return Small Craft Exercise Caution conditions. NOAA Brownsville TX Office: Watches - Warnings - Advisories TX...None. GM...None. |
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