Thursday, March4, 2021
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Marine Weather and Tides
South Padre Island, TX

Version 3.4
NOTICE
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 6:48AMSunset 6:34PM Thursday March 4, 2021 7:16 PM CST (01:16 UTC) Moonrise 12:00AMMoonset 10:39AM Illumination 62% Phase: Waning Gibbous; Moon at 21 days in cycle
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.
Marine Forecasts
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GMZ130 Laguna Madre From The Port Of Brownsville To The Arroyo Colorado- Laguna Madre From The Arroyo Colorado To 5 Nm North Of Port Mansfield Tx- Laguna Madre From 5 Nm North Of Port Mansfield To Baffin Bay Tx- 341 Pm Cst Thu Mar 4 2021
Tonight..Southeast winds 10 to 15 knots. A moderate chop on the bay. Areas of fog after midnight.
Friday..East winds 5 to 10 knots becoming north in the afternoon. A light chop on the bay subsiding to smooth in the afternoon. Areas of fog in the morning. Patchy fog in the afternoon. Chance of showers through the day.
Friday night..Southeast winds 5 to 10 knots becoming north 15 to 20 knots after midnight. A light chop on the bay building to choppy after midnight. Patchy fog in the evening.
Saturday..North winds 15 to 20 knots. Choppy on the bay.
Saturday night..Northeast winds 10 to 15 knots becoming east 5 to 10 knots after midnight. A moderate chop on the bay subsiding to a light chop after midnight.
Sunday..East winds 5 to 10 knots increasing to 10 to 15 knots in the afternoon. A light chop on the bay building to a moderate chop in the afternoon.
Sunday night..East winds 5 to 10 knots. A light chop on the bay.
Monday..East winds 5 to 10 knots increasing to 10 to 15 knots in the afternoon. A light chop on the bay building to a moderate chop in the afternoon.
Monday night..Southeast winds 10 to 15 knots diminishing to 5 to 10 knots after midnight. A moderate chop on the bay subsiding to a light chop after midnight.
Tuesday..Southeast winds 10 to 15 knots increasing to 15 to 20 knots in the afternoon. A moderate chop on the bay building to choppy in the afternoon.
Tuesday night..Southeast winds 10 to 15 knots. A moderate chop on the bay.
GMZ100 Synopsis For Baffin Bay To Rio Grande Out 60 Nm- 341 Pm Cst Thu Mar 4 2021
Synopsis..Light to moderate onshore flow and low to moderate seas will prevail through Friday. Moderate to strong north to northeast winds and building seas will develop Friday night through Saturday night in the wake of a cold front. Moderate to fresh veering winds will continue Sunday through Tuesday as winds shift to east and then southeast, with seas remaining slightly elevated.


7 Day Forecast for Marine Location Near South Padre Island, TX
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location: 26.11, -97.16     debug


Area Discussion for - Brownsville, TX
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FXUS64 KBRO 042328 AAA AFDBRO

Area Forecast Discussion . UPDATED National Weather Service Brownsville TX 528 PM CST Thu Mar 4 2021

DISCUSSION. Updated for latest aviation discussion below.

AVIATION. MVFR currently at BRO and VFR at HRL and MFE. The trend will be toward increasing low clouds and MVFR conditions tonight through Friday afternoon. Patchy fog will also be in the mix, but low clouds will likely be the limiting factor. Light southeast winds will carry on tonight through Friday morning. As a cold front nears tonight through Friday morning, showers may develop in the vanguard. MVFR conditions in low clouds and light isolated to scattered showers will prevail will prevail during the day, but once the front moves through in the afternoon, much drier air will help clear up conditions to VFR with light north winds by late Friday afternoon/early evening.

PREV DISCUSSION. /issued 248 PM CST Thu Mar 4 2021/

SHORT TERM (Tonight through Friday night): A 500mb low/trough across the Texas/Oklahoma panhandles tonight will move eastward across the southern plains Friday At the surface. low pressure over the Texas panhandle this afternoon will move slowly eastward into north Texas Fri morning and this will bring a cold front across west Texas tonight and into southwest Texas Friday. Patchy fog will develop across deep south Texas tonight with areas of fog developing across the coastal sections late tonight and continuing through Fri morning before a pre-frontal trough moves through the Rio Grande Valley Fri afternoon bringing drier air across the CWA from west to east In addition. isolated to scattered showers will develop across the lower Texas coast Friday before the surface trough moves offshore. The cold front across southwest Texas Fri afternoon will move offshore the lower Texas coast Fri night bringing an end to rain chances. Cooler air will filter into deep south Texas in the wake of the front Fri night. Lows tonight will be above normal and slightly below normal tomorrow night. Highs Friday will slightly above normal to above normal . especially across the western portions of the CWA where some compressional heating is expected with drier air moving into the northwest ranchlands and upper RGV during the afternoon.

LONG TERM (Saturday through Thursday): Modest CAA behind a cold front passing through Deep South Texas and the RGV on Friday evening will cool down the weekend to slightly below normal temperatures with highs in the lower to mid 70s and lows in the 50s. Saturday will be dry, but the combination of the return of a moist onshore flow and another shortwave that passes through the state on Sunday could bring a slight chance of some isolated showers to the area, however, have mostly gone with silent PoPs for the Sunday into Monday period until confidence is higher.

Early next week, mid level ridging will build and broad high pressure over the eastern CONUS will maintain moderate southeasterly winds across the area. A trough will form over the western CONUS mid week and the interaction between this trough and high pressure over the eastern CONUS will accelerate winds across Deep South Texas as the pressure gradient tightens. Winds may be high enough (particularly along and east of the I-69E corridor) to necessitate a Wind Advisory on Wednesday and possibly again on Thursday, but have kept winds below criteria with this package. These onshore winds will also allow for a warming trend through the end of the period.

With a large fetch of east to southeasterly winds across the northern Gulf of Mexico through the workweek, the lower Texas coast will be impacted by slightly elevated swells, likely increasing the risk of rip currents. Even though the weather should be pleasant at the beach mid to late week next week, beach-goers should pay attention to the flags and signs at the beach and be very cautious if entering the surf.

MARINE: Tonight through Friday night . Light to moderate southeast winds will prevail across the coastal waters tonight with low pressure across the Texas panhandle. The pressure gradient will weaken across the lower Texas coast Friday before a cold front moves offshore Fri night. Light south to southeast winds will prevail across the western Gulf of Mexico Friday and shift to the north Fri night and increase late Fri night providing SCEC to SCA conditions across the offshore waters late Fri night with moderate to strong north winds developing offshore the lower Texas coast. Fog will develop across the lower Texas coast late tonight as winds diminish and the fog will likely continue through Friday before drier air filters into the western Gulf of Mexico Fri night.

Saturday through Tuesday . A cold front on Friday will bring moderate northerly winds, likely agitating seas and meeting SCEC criteria on Saturday. As high pressure moves to the east, a large fetch of moderate easterly winds will develop across the northern Gulf of Mexico, increasing wave heights into early to mid week.

PRELIMINARY POINT TEMPS/POPS. BAYVIEW/PORT ISABEL 64 77 54 68 / 10 30 10 0 BROWNSVILLE 64 79 54 71 / 10 30 10 0 HARLINGEN 63 80 52 71 / 10 30 10 0 MCALLEN 64 81 53 74 / 10 20 0 0 RIO GRANDE CITY 64 85 53 76 / 10 10 0 0 SOUTH PADRE ISLAND 64 72 57 63 / 10 30 10 0

BRO WATCHES/WARNINGS/ADVISORIES. TX . None. GM . None.

This product is also available on the web at: HTTP://WEATHER.GOV/RGV

54-BHM/56-Hallman


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
BZST2 3 mi47 min ESE 11 G 12 63°F 60°F1014.5 hPa
PCGT2 - 8779748 - South Padre Island CGS, TX 3 mi47 min ESE 8.9 G 11 63°F 63°F1015.1 hPa
PTIT2 - 8779770 - Port Isabel, TX 4 mi47 min ESE 12 G 13 65°F 64°F1017.5 hPa
RLIT2 12 mi47 min ESE 15 G 17 67°F 73°F1014.4 hPa
PMNT2 34 mi47 min 67°F 69°F1015.5 hPa

Wind History for South Padre Island C.G Station, TX
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Port Isabel, Port Isabel-Cameron County Airport, TX10 mi24 minSE 1110.00 miMostly Cloudy66°F59°F78%1015 hPa
Brownsville, Brownsville / South Padre Island International Airport, TX20 mi24 minESE 1110.00 miMostly Cloudy69°F61°F76%1015.2 hPa

Link to 5 minute data for KSPL

Wind History from SPL (wind in knots)
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Last 24hrSE7S7S10S8S8S9S8W5SW11S14SW13SW8SW6N4E3NE7NE6E4E5E6E4E3E4Calm
1 day agoS8S7S4SW5NW3N3N3N6E4NE4E5E13SE16NW8S4S7S5CalmCalmSE6SE6SE5SE6SE5
2 days agoSE7SE7SE8SE3S5S6S6SW5NW3NW4SW8SW11S20SW16
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Tide / Current Tables for Padre Island (South), Texas (2)
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Padre Island (South)
Click for Map
Thu -- 06:48 AM CST     Sunrise
Thu -- 09:20 AM CST     1.05 feet High Tide
Thu -- 10:39 AM CST     Moonset
Thu -- 12:08 PM CST     0.87 feet Low Tide
Thu -- 05:45 PM CST     0.98 feet High Tide
Thu -- 06:31 PM CST     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.3-0.2-0.10.10.30.50.70.91110.90.90.90.90.91110.90.80.50.2-0.1

Tide / Current Tables for Matamoros, Tamaulipas, Mexico
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Matamoros
Click for Map
Thu -- 12:37 AM CST     -0.21 feet Low Tide
Thu -- 06:50 AM CST     Sunrise
Thu -- 09:50 AM CST     1.17 feet High Tide
Thu -- 10:40 AM CST     Moonset
Thu -- 06:33 PM CST     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.2-0.2-0.100.30.50.80.91.11.21.21.11.11.1111110.80.70.40.2-0

Weather Map
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NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
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