Monday, December9, 2019
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Marine Weather and Tides
South Padre Island, TX

Version 3.4
NOTICE
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 7:04AMSunset 5:40PM Monday December 9, 2019 4:50 AM CST (10:50 UTC) Moonrise 4:02PMMoonset 4:31AM Illumination 94% Phase: Waxing Gibbous; Moon at 12 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- 355 Am Cst Mon Dec 9 2019
.small craft exercise caution today...
.gale watch in effect from Tuesday afternoon through Tuesday evening...
Today..South 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.
Tonight..South winds 10 to 15 knots. A moderate chop on the bay. Slight chance of showers after midnight.
Tuesday..West winds 20 to 25 knots shifting north 25 to 30 knots in the afternoon. Rough on the bay. Rain showers likely in the morning, then chance of rain showers in the afternoon.
Tuesday night..North winds 20 to 25 knots. Gusts up to 40 knots in the evening. Rough on the bay. Slight chance of rain showers.
Wednesday..North winds around 20 knots. Choppy to rough on the bay. Slight chance of rain showers.
Wednesday night..Northeast 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.
Thursday..Northeast winds around 5 knots increasing to 5 to 10 knots in the afternoon. Smooth on the bay building to a light chop in the afternoon.
Thursday night..North winds 5 to 10 knots. A light chop on the bay. Slight chance of showers.
Friday..North winds 5 to 10 knots. A light chop on the bay.
Friday night..Southeast winds around 5 knots becoming south after midnight. Smooth on the bay building to a light chop after midnight.
GMZ100 Synopsis For Baffin Bay To Rio Grande Out 60 Nm- 355 Am Cst Mon Dec 9 2019
Synopsis..Low level pressure gradient will increase today leading to moderate winds and seas across the adjacent gulf waters and laguna madre. Cautionary headlines are expected. There may be a brief improvement late tonight as winds decrease out ahead of the approaching frontal boundary due into the region midday on Tuesday. This brief improvement will quickly be replaced with strong winds and rapidly building seas. Frequent gusts to gale force are anticipated and a gale watch has been issued for all lower texas coastal waters including the laguna madre. Beyond late Tuesday night, small craft advisory conditions will persist through much of Wednesday before more favorable marine conditions arrive overnight Wednesday and especially during the day Thursday.


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 091017 AFDBRO

Area Forecast Discussion National Weather Service Brownsville TX 417 AM CST Mon Dec 9 2019

.SHORT TERM (Today through Tuesday): Mostly clear to partly cloudy across the RGV this morning with a few more clouds up north where some low stratus/fog has developed. Aloft, zonal flow will gradually begin to shift to a subtle southwesterly flow later today as a strong H5 wave begins to dig southward into northwestern portions of Mexico. At the surface, pressure gradient begins to increase, which will lead to some breezy southerly winds today, especially in the lower RGV. The main forecast challenge for today was high temperatures, especially out west where limited cloud cover and slightly increasing heights will reside. Went ahead and bumped temps a bit today.

Tonight winds will gradually decrease as the sun sets. Depending on exactly where the front is located, moisture pooling may be a concern later tonight ahead of the front leading to more fog, however, SREF probs aren't nearly as bullish as this morning. That in mind we'll leave out mention of fog for now. After midnight, POPs will begin to increase, especially along I69E and across the extreme northern tier counties as the front begins to enter the FA from the northwest just before sunrise.

All eyes will shift to the cold front on Tuesday. The front should clear the land zones by 18z. In addition to rain chances, northerly winds will also increase. A wind advisory is likely for the coastal counties as a few gusts will approach or exceed 40 mph. As dry air advects into the region from the north, rainfall will begin to shift offshore. Outside of the gusty winds, air temperatures will be the next story as they will likely drop from the upper 60s or lower 70s in the early morning hours to 50s by the evening commute. Temperatures on Tuesday will of course be driven by the exact timing of the front. Models have slowed the passage slightly leading to a bit later passage with slightly higher temps across the RGV. Tried to blend with a heavier lean toward the mesoscale models for this package.

.LONG TERM (Tuesday Night through Sunday): Breezy to windy northerly winds behind the front on Tuesday are expected to continue into the early evening hours. Temperatures are expected to drop into the lower to mid 40s across the region with areas along the northern CWA border possibly dipping below 40. Rain chances will be confined to the coastal areas and offshore on Tuesday night into Wednesday before clearing out Wednesday evening. On Wednesday, winds are expected to shift east as a surface high slides in behind the front and moves off to the east. With surface ridging and dry air moving into the CWA behind the front, the skies are expected to be mostly clear on Wednesday and highs will reach the lower to mid 60s. Overnight lows and highs will be slightly warmer on Wednesday night and during the day on Thursday with cloudier conditions expected.

Another 500 mb shortwave trough is expected to swing across Texas Thursday night. The ECM continues to have the shortwave trough dig in deeper over Deep South Texas and brings in more 1000-500 mb moisture than the GFS. For now, have decided to split the difference with a slight bias towards the GFS and put in slight chance PoPs on Thursday night and Friday. Heading into the weekend, a broad 500 mb high flattens and moves in behind the shortwave, suppressing any PoPs, causing winds to shift out of the south, and allowing temperatures to increase each day.

.MARINE (Today through Tuesday): Moderate southerly flow today is expected across the coastal waters. This will lead to cautionary headlines today. Although small craft advisory conditions can't be entirely ruled out today given forecast values and the min SCA thresholds are very close. Winds will gradually lessen tonight and early Tuesday as a cold frontal boundary nears from the northwest. Moderate winds and seas can be expected early Tuesday before an abrupt decline takes shape Tuesday afternoon behind the strong cold front. Gale conditions are likely Tuesday afternoon through the end of the period (and beyond).

Tuesday Night through Saturday . Gale conditions will be possible Tuesday night behind the cold front. Hazardous marine conditions will continue into Wednesday before improving to moderate levels Thursday as winds and seas gradually subside. There is a slight chance of rain on Thursday and Friday associated with an upper level disturbance. Favorable marine conditions are expected on Friday and Saturday as conditions continue to improve.

PRELIMINARY POINT TEMPS/POPS. BAYVIEW/PORT ISABEL 80 66 67 45 / 0 20 50 20 BROWNSVILLE 82 67 68 45 / 0 20 40 20 HARLINGEN 82 66 67 43 / 0 20 50 10 MCALLEN 86 65 65 45 / 0 10 40 10 RIO GRANDE CITY 87 63 64 43 / 0 10 30 10 SOUTH PADRE ISLAND 73 67 68 50 / 0 20 50 30

BRO WATCHES/WARNINGS/ADVISORIES. TX . None. GM . Gale Watch from Tuesday afternoon through Tuesday evening for GMZ130-132-135-150-155-170-175.



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

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
BZST2 3 mi56 min S 9.9 G 12 71°F 69°F1009.4 hPa
PCGT2 - 8779748 - South Padre Island CGS, TX 3 mi56 min S 11 G 14 71°F 1010.3 hPa
PTIT2 - 8779770 - Port Isabel, TX 4 mi56 min S 7 G 11 71°F 70°F1011.1 hPa
PMNT2 34 mi56 min 69°F 71°F1010.7 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 mi57 minS 87.00 miFair71°F68°F90%1010.6 hPa
Brownsville, Brownsville / South Padre Island International Airport, TX20 mi57 minS 1210.00 miFair72°F68°F87%1010.5 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
Mon -- 12:16 AM CST     1.14 feet High Tide
Mon -- 04:31 AM CST     Moonset
Mon -- 06:16 AM CST     -0.01 feet Low Tide
Mon -- 07:04 AM CST     Sunrise
Mon -- 03:20 PM CST     1.25 feet High Tide
Mon -- 04:02 PM CST     Moonrise
Mon -- 05:37 PM CST     Sunset
Mon -- 06:38 PM CST     1.02 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.11.10.90.70.40.1-000.10.20.40.70.91.11.21.21.21.11111.11.11.1

Tide / Current Tables for Matamoros, Tamaulipas, Mexico
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Matamoros
Click for Map
Mon -- 04:33 AM CST     Moonset
Mon -- 07:05 AM CST     Sunrise
Mon -- 07:05 AM CST     -0.08 feet Low Tide
Mon -- 03:51 PM CST     1.24 feet High Tide
Mon -- 04:04 PM CST     Moonrise
Mon -- 05:39 PM CST     Sunset
Mon -- 09:15 PM CST     1.02 feet Low Tide
Mon -- 10:33 PM CST     1.03 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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10.90.70.50.30.1-0-0.1-00.10.30.50.811.11.21.21.21.11.11111

Weather Map
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wmap_A
GEOS Local Image of    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Brownsville, TX (5,6,7,8)
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Ground Weather Radar Station Brownsville, TX
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Gulf Stream Current


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