Marine Weather Net

Port Mansfield, TX to the Rio Grande River Marine Forecast


TODAY

NE
WINDS
10 - 15
KNOTS

TONIGHT

E
WINDS
10 - 15
KNOTS

WEDNESDAY

SE
WINDS
10 - 15
KNOTS

WEDNESDAY NIGHT

SE
WINDS
10 - 15
KNOTS

The Marine Weather Forecast In Detail:
GMZ150 Forecast Issued: 1229 AM CDT Tue Mar 19 2024

SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 AM CDT THIS MORNING
Today...Northeast Winds 10 To 15 Knots. Seas 5 To 7 Feet, With Occasional Seas Up To 8 Feet Subsiding To 4 To 5 Feet This Afternoon.
Tonight...East Winds 10 To 15 Knots Becoming Southeast 5 To 10 Knots After Midnight. Seas 3 To 5 Feet.
Wednesday...Southeast Winds 10 To 15 Knots. Seas 3 To 4 Feet. A Slight Chance Of Showers In The Afternoon.
Wednesday Night...Southeast Winds 10 To 15 Knots. Seas 3 To 4 Feet. A Slight Chance Of Showers And Thunderstorms In The Evening, Then A Chance Of Showers And Thunderstorms After Midnight.
Thursday...South Winds 5 To 10 Knots Becoming North In The Afternoon. Seas 3 To 4 Feet. Showers Likely In The Morning. A Chance Of Thunderstorms. A Chance Of Showers In The Afternoon.
Thursday Night...Northeast Winds Around 10 Knots Becoming Southeast After Midnight. Seas 3 To 4 Feet.
Friday...Northwest Winds 5 To 10 Knots Becoming Northeast In The Afternoon. Seas 3 To 4 Feet.
Friday Night...East Winds 5 To 10 Knots. Seas 3 To 4 Feet.
Saturday...East Winds 5 To 10 Knots. Seas 3 To 4 Feet.
Saturday Night...Southeast Winds 10 To 15 Knots. Seas 2 To 4 Feet. Winds And Seas Higher In And Near Thunderstorms.
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Area Forecast Discussion
National Weather Service Brownsville TX
1215am CDT Tuesday Mar 19 2024

Long Term
(Wednesday through next Monday) Issued at 206pm CDT Monday Mar 18 2024

Latest Model suite remain in good agreement and consistency with the mid-level trough tracking across the Desert SW/Southern Plains Wed- Thursday. At the surface, cyclogenesis takes place near the lower Texas coast Wednesday with the low tracking steadily northeast Thursday. Flat ridge settles over Texas through the weekend with fair and seasonal weather in the works. A large synoptic scale trough moves into the western third of the country Sunday and early next week which may result in increasing southerly winds

Increasing forcing and lift is expected later Wednesday and more so wednesday night as low level convergence from the developing surface low and frontogenesis combines with the approaching mid- level trough. Boundary layer warm advection and cooling aloft from the trough will quickly destabilize the atmosphere. Best rain chances are on tap for Wednesday night with a few stronger thunderstorms not out of equation. At this time, NBM probability of precipitation have been bumped up to 30-50 percent while the GFS (Global Forecast System) is 50-70 and ECMWF (European Centre for Medium-Range Weather Forecasts) is 50-80 . Quantitative Precipitation Forecast values are coming in at 0.10-0.50 inches which would only add to the beneficial rain as of late. The remainder of the forecast looks dry and fair with the exception to later Sunday and Monday when southerly winds return possibly becoming windy across the lower RGV.

Temperatures to remain seasonal with near to slighlty above mid-late March averages of 80-84 degree. Another surge of high pressure settles to our east over the weekend slowing down the warming trend with the latest model guidance holding temperatures in the 80s with no 90s showing up until next Monday. Lows look to remain comfortable also near to slightly above the seasonal normal of 58-64 degree.

Marine
Issued at 206pm CDT Monday Mar 18 2024

Tonight through Tuesday night...Hazardous marine conditions are anticipated through tonight due to elevated winds and seas behind a cold front that moved through on Sunday. Winds will decrease tonight, but seas will remain elevated for the offshore waters until early Tuesday afternoon. Small Craft advisories are currently in effect. By Tuesday night favorable conditions will return.

Wednesday through Monday...Low pressure to develop near the lower Texas coast later Wednesday tracking northeast across the western Gulf Thursday. Unsettled weather along with variable SE-E light winds are expected Wednesday turning northwest at light to moderate speeds as the low tracks northeast Thursday. Weak ridge settles to the east of coastal waters Friday and Weekend with moderate southeast winds and a moderate sea.

NOAA Brownsville TX Office: Watches - Warnings - Advisories
TX...High Rip Current Risk until 7am CDT this morning for TXZ451-454- 455.

until 1am CDT early this morning for TXZ451-454-455.

High Surf Advisory until 7am CDT this morning for TXZ451-454- 455.

GM...Small Craft Advisory until 1am CDT early this morning for GMZ130-132-135.

Small Craft Advisory until 7am CDT this morning for GMZ150-155.

Small Craft Advisory until 1pm CDT this afternoon for GMZ170- 175.