Marine Weather Net

Baffin Bay to Port Aransas 20 - 60 NM Marine Forecast


TONIGHT

E
WINDS
10 - 15
KNOTS

THURSDAY

SE
WINDS
10 - 15
KNOTS

THURSDAY NIGHT

SE
WINDS
10 - 15
KNOTS

FRIDAY

SE
WINDS
10
KNOTS

The Marine Weather Forecast In Detail:
GMZ270 Forecast Issued: 319 PM CDT Wed Apr 17 2024

Tonight...East Winds 10 To 15 Knots, Becoming Southeast With Gusts Up To 20 Knots After Midnight. Waves 4 To 5 Feet, Occasionally Seas Up To 6 Feet. Patchy Fog.
Thursday...Southeast Winds 10 To 15 Knots. Waves 4 To 5 Feet, Occasionally Seas Up To 6 Feet. Patchy Fog In The Morning.
Thursday Night...Southeast Winds 10 To 15 Knots With Gusts Up To 20 Knots. Waves Around 4 Feet, Occasionally Seas Around 5 Feet.
Friday...Southeast Winds Around 10 Knots. Waves 3 To 4 Feet, Occasionally Seas Around 5 Feet.
Friday Night...Southeast Winds 10 To 15 Knots With Gusts Up To 20 Knots. Waves 3 To 4 Feet, Occasionally Seas Around 5 Feet.
Saturday...Southeast Winds 10 To 15 Knots With Gusts Up To 20 Knots. Waves 3 To 4 Feet, Occasionally Seas Around 5 Feet.
Saturday Night...East Winds 10 To 15 Knots. Waves 3 To 4 Feet, Occasionally Seas Around 5 Feet. A Chance Of Showers And Thunderstorms After Midnight.
Sunday...Northeast Winds 10 To 15 Knots, Becoming North 15 To 20 Knots In The Afternoon. Waves 3 To 4 Feet, Occasionally Seas Around 5 Feet. A Chance Of Showers And Thunderstorms In The Morning.
Sunday Night...Northeast Winds Around 15 Knots. Waves 4 To 5 Feet, Occasionally Seas Up To 6 Feet.
Monday...Northeast Winds 10 To 15 Knots. Waves Around 4 Feet, Occasionally Seas Around 5 Feet.
Monday Night...East Winds Around 10 Knots. Waves 3 To 4 Feet, Occasionally Seas Around 5 Feet. Winds And Seas Higher In And Near Thunderstorms.
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Area Forecast Discussion
National Weather Service Corpus Christi TX
640pm CDT Wednesday April 17 2024

Long Term
(Friday through next Tuesday) Issued at 314pm CDT Wednesday April 17 2024

Key Messages:

- Scattered Thunderstorms Saturday and Saturday Night

- Marginal Risk of Excessive Rainfall Saturday for the northern counties of South Texas.

A cold front expected to move southward across the Plains before the beginning of the period, originally in response to an upper disturbance moving across the US/Canadian border, is predicted to stall north of the CWA/over central TX (yet the GFS (Global Forecast System) moves it farther south than the ECMWF (European Centre for Medium-Range Weather Forecasts) and NAM). This stall would not be surprising given the quasi-zonal upper pattern over much of the CONUS. In addition, another upper system is predicted to enter the southwestern CONUS Saturday. The front is not expected to move across the CWA (County Warning Area) until Saturday night (GFS/ECMWF), when this latter system moves eastward across the region. Owing to persistent onshore flow, PWAT (Precipitable Water) values are expected to be above normal in advance of the front (GFS deterministic). The combination of the forcing associated with this latter upper disturbance, the front, and copious moisture is expected to result in isolated/scattered convection Saturday, and scattered/numerous convection Saturday night. Given the copious moisture and the probable transition of the environment somewhat supportive of efficient rainfall production (moist vertical column and low/moderate CAPE), except for 0-6km vertical shear, concur with WPC regarding a Marginal Risk for excessive heavy rainfall Saturday night. The limiting factor appears to be whether 1-hr rainfall rates will reach the most recent FFG threshold of around 3 inches. Expect the front to move offshore Sunday morning. Although precipitation will dissipate after frontal passage, only slightly drier conditions are expected. The combination of increasing moisture and a weak upper disturbance may result in isolated showers Tuesday over portions of the Coastal Plains.

Marine
Issued at 314pm CDT Wednesday April 17 2024

A weak to moderate onshore flow will continue today and persist through the remainder of the week. Patchy Sea Fog is expected to develop this evening and again tomorrow night. An upper level disturbance, cold front, and copious moisture will contribute to scattered to numerous showers/thunderstorms Saturday night. Anticipate at least Small Craft Exercise Caution conditions after frontal passage.

NOAA Corpus Christi TX Office: Watches - Warnings - Advisories
TX...High Rip Current Risk through Thursday morning for TXZ345-442- 443-447.

GM...None.