Marine Weather Net

Bay and Waterways from Port Aransas to Port O'Connor Marine Forecast


REST OF TODAY

E
WINDS
5 KNOTS

TONIGHT

SE
WINDS
5 - 10
KNOTS

WEDNESDAY

E
WINDS
5 - 10
KNOTS

WEDNESDAY NIGHT

SE
WINDS
5 KNOTS

The Marine Weather Forecast In Detail:
GMZ235 Forecast Issued: 914 AM CST Tue Nov 30 2021

Rest Of Today...East Wind Around 5 Knots Shifting Southeast In The Afternoon. Bays Smooth.
Tonight...Southeast Wind 5 To 10 Knots. Bays Smooth.
Wednesday...East Wind 5 To 10 Knots. Bays Smooth.
Wednesday Night...Southeast Wind Around 5 Knots. Bays Smooth.
Thursday...East Wind 5 To 10 Knots. Bays Smooth.
Thursday Night...Southeast Wind 5 To 10 Knots. Bays Smooth.
Friday...South Wind 5 To 10 Knots. Bays Smooth. A Slight Chance Of Showers.
Friday Night...South Wind 5 To 10 Knots. Bays Smooth.
Saturday...South Wind Around 5 Knots Shifting Southeast In The Afternoon. Bays Smooth. A Chance Of Showers.
Saturday Night...East Wind 5 To 10 Knots. Bays Smooth. A Slight Chance Of Showers.
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Synopsis for Middle Texas coastal waters from Baffin Bay to Matagorda ship channel - GMZ200
914 AM CST Tue Nov 30 2021

Weak onshore flow is expected today and tonight. Generally weak onshore flow and increasing moisture is expected Wednesday through Saturday. An upper level disturbance will contribute to isolated showers and thunderstorms Friday and Saturday.
Area Forecast Discussion
...UPDATED National Weather Service Corpus Christi TX
1149am CST Tuesday Nov 30 2021

/Issued 902am CST Tuesday Nov 30 2021/

Satellite imagery shows region of fog over the coastal plains continuing to diminish. Some pockets of dense fog will linger for the next 30 minutes to an hour in places, but overall the visibilities have improved and will continue.nue to improve. So allowed the Dense Fog Advisory to expire.

Marine
Latest satellite imagery shows the fog has cleared over the bays and near shore waters. Will cancel the advisory early for this area.

/Issued 519am CST Tuesday Nov 30 2021/

Short Term - Today Through Wednesday
A weak upper level disturbance is expected to develop/move across the Southern Plains today, while another stronger upper system moves across the Northern Plains late this afternoon/evening, then over the Mississippi Valley/Midwest tonight, before merging with the weaker system to generate a trough that moves across the SERN CONUS Wednesday, while an upper cutoff low meanders over the Baja CA region. Lift associated with the SRN Plains system is expected to remain north of the CWA. PWAT (Precipitable Water) values are expected to slowly increase to near normal by tonight. No significant precipitation is expected over the CWA during the period. Areas of dense fog over the Coastal Plains early this morning will dissipate during the mid morning. Patchy fog may occur again 09-12z Wednesday inland.

Long Term - Wednesday Night through Monday
A mid-level cutoff low that develops near the Baja Peninsula will oscillate between SOCAL and the Baja Peninsula over the course of the work week. A series of shortwave disturbances will move around the southern periphery of the low and eastward into South Texas from late in the week through the weekend. Moisture will increase as the week progresses, with PWAT (Precipitable Water) values reaching to around 1.5" by Thursday. PWAT (Precipitable Water) values will remain around 1.5" through the weekend. The combination of mid-level shortwave disturbances, PWATs (Precipitable Waters) above the 75th percentile, and isentropic lift will lead to a chance of showers and thunderstorms along the Coastal Bend and Coastal Waters through the weekend.

Latest model guidance has pulled back with regards to the cold front on Saturday, with the Canadian being the only guidance suggesting a front pushing through South Texas; however, models do point to a front approaching the area Monday. PWAT (Precipitable Water) values for Monday continue to remain around 1.5" for the Coastal Bend ahead of the front. Have kept slight Probability of Precipitation in for the Coastal Bend into the Coastal Waters as the combination of moisture and H5 energy could lead to the development of showers and thunderstorms; however, with it being late in the period, guidance could change with regard to timing and location of any precipitation.

Max temperatures through the long-term period will remain in the 70s and 80s with nighttime lows generally in the 50s to 60s.

Marine

Areas of dense fog early this morning over the bays and portions of the nearshore coastal waters. Otherwise, weak onshore flow expected today. Generally weak onshore flow and increasing moisture expected Wednesday through Saturday. An upper level disturbance will continue.ibute to isolated showers and thunderstorms Friday and Saturday.

NOAA Corpus Christi TX Office: Watches - Warnings - Advisories
TX...None. GM...None.