Marine Weather Net

Baffin Bay to Port Aransas Marine Forecast


TODAY

N
WINDS
20 - 25
KNOTS

TONIGHT

NE
WINDS
10 - 15
KNOTS

WEDNESDAY

NE
WINDS
10
KNOTS

WEDNESDAY NIGHT

E
WINDS
5 - 10
KNOTS

The Marine Weather Forecast In Detail:
GMZ250 Forecast Issued: 326 AM CST Tue Mar 02 2021

SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON CST TODAY
Today...North Wind 20 To 25 Knots Decreasing To 10 To 15 Knots. Seas 4 To 6 Feet With Occasional Seas Up To 8 Feet.
Tonight...Northeast Wind 10 To 15 Knots. Seas 2 To 4 Feet With Occasional Seas Up To 5 Feet.
Wednesday...Northeast Wind Around 10 Knots. Seas 2 To 3 Feet.
Wednesday Night...East Wind 5 To 10 Knots. Seas 2 To 3 Feet.
Thursday...East Wind 5 To 10 Knots Increasing To 10 To 15 Knots In The Afternoon. Seas 2 To 3 Feet.
Thursday Night...Southeast Wind 10 To 15 Knots. Seas 2 To 3 Feet.
Friday...South Wind Around 5 Knots Shifting Southwest In The Afternoon. Seas 2 To 3 Feet. A Slight Chance Of Showers.
Friday Night...Northwest Wind 10 To 15 Knots Becoming North 15 To 20 Knots After Midnight. Seas 2 To 3 Feet Building To 3 To 5 Feet With Occasional Seas Up To 6 Feet After Midnight.
Saturday...North Wind 15 To 20 Knots Becoming Northeast 10 To 15 Knots In The Afternoon. Seas 3 To 5 Feet With Occasional Seas Up To 6 Feet.
Saturday Night...East Wind 10 To 15 Knots. Seas 3 To 5 Feet With Occasional Seas Up To 6 Feet.
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Synopsis for Middle Texas coastal waters from Baffin Bay to Matagorda ship channel - GMZ200
326 AM CST Tue Mar 2 2021

Strong northerly flow this morning with Small Craft Advisory conditions will taper to moderate levels from west to east this morning and afternoon. North winds become weak to moderate tonight as high pressure draws closer, before turning northeasterly and easterly on Wednesday and remaining mostly weak. Weak to moderate onshore flow continues Wednesday night through Friday morning. Increasing moisture will contribute to a few showers by Friday ahead of a cold front. Some sea fog could develop later this week until dry offshore flow arrives Friday night behind the front. Winds will become moderate to strong Saturday morning, becoming more moderate as flow shifts to onshore by Sunday evening.
Area Forecast Discussion
National Weather Service Corpus Christi TX
1052pm CST Monday Mar 1 2021

Short Term - Tonight Through Tuesday Night
An upper level disturbance will provide synoptic scale lift tonight through early Tuesday morning. Elevated convection associated with the upper disturbance, and light rain associated with isentropic lift, will persist this evening/early tonight before moving offshore. Cooler during the period, with minimum/maximum temperatures similar to the SREF ensemble mean values.

Long Term - Wednesday through Monday
Long term period remains quiet as high pressure continues to settle in. A warming trend will continue Wednesday through the end of the week as westerly winds bring in warm, dry air into the region. Highs through the end of the week will generally be in the 70s to low 80s. A mid-upper level low will traverse the TX Panhandle Friday and clip the easternmost portion of the state. As the low tracks east, it will send a cold front into South Texas. Kept slight chance of Probability of Precipitation as the front approaches. Isentropic lifting at the 295K-300K levels could aid in the development of isolated showers early Friday ahead of the front, particularly along the Coastal Plains and east where PWAT (Precipitable Water) values are the greatest. At this time the environment does not look conducive to convective activity. Northwesterly winds behind the front will draw cooler air into South Texas. Highs on Saturday will be in the mid 60s to low 70s. Onshore flow returns Sunday, and temperatures will begin a warming trend once more as warm moist air is advected into the region.

Marine Discussion

The cold front has moved across the coastal waters. An SCA (Small Craft Advisory) remains in effect areawide, ending at 15z over the bays, and 21z over the coastal waters. SREF probabilities of sustained wind >25 knots high over the coastal waters, mainly 06-12z Tuesday, which suggests that frequent gusts to gale force could occur. However, coordinated with BRO will defer the decision on a Gale Warning to the next shift. Weak northeasterly flow is expected for Wednesday, becoming weak onshore flow Wednesday night as high pressure departs to the northeast. As onshore flow becomes weak to moderate Thursday evening into Friday morning, increasing moisture will contribute to a few showers by Friday ahead of a cold front. Some sea fog could develop later this week until dry offshore flow arrives Friday night behind the front.

NOAA Corpus Christi TX Office: Watches - Warnings - Advisories
TX...None. GM...Small Craft Advisory until 6pm CST Tuesday For the following zones: Coastal waters from Baffin Bay to Port Aransas out 20 NM...Coastal waters from Port Aransas to Matagorda Ship Channel out 20 NM...Waters from Baffin Bay to Port Aransas from 20 to 60 NM...Waters from Port Aransas to Matagorda Ship Channel from 20 to 60 NM.

Small Craft Advisory until 9am CST Tuesday For the following zones: Bays and Waterways from Baffin Bay to Port Aransas... Bays and Waterways from Port Aransas to Port O'Connor.