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Marine Weather and Tides Port Isabel, TX Version 3.4

NOTICE 12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed. 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.

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Sunrise 7:15AM

Sunset 6:08PM

Friday January 24, 2020 11:55 AM CST (17:55 UTC)

Moonrise 7:12AM

Moonset 6:03PM

Illumination 0%

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.

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7 Day Forecast for Marine Location Near Port Isabel, TX

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Area Discussion for - Brownsville, TX

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FXUS64 KBRO 241732 AAB AFDBRO

Area Forecast Discussion . UPDATED National Weather Service Brownsville TX 1132 AM CST Fri Jan 24 2020

DISCUSSION. Updated for latest aviation discussion below.

AVIATION. VFR through tonight with negligible aviation concerns. More robust low level moisture return on Saturday, along with instability in the mid level flow in advance of a short wave trough upstream, will contribute to low clouds increasing on Saturday, and by late morning ceilings will likely dip to MVFR along with the appearance of isolated to scattered showers. A rumble of thunder cannot be ruled out Saturday afternoon to evening.

PREV DISCUSSION. /issued 541 AM CST Fri Jan 24 2020/

DISCUSSION . Updated for latest aviation discussion below.

AVIATION . High pressure over Eastern Texas will provide VFR conditions and light northeast to east winds for all three regional airports today.

PREV DISCUSSION . /issued 334 AM CST Fri Jan 24 2020/

SHORT TERM (Now through Saturday): A slightly cooler and drier airmass is now in place, in the wake of yesterday's weak cold front that pushed through the CWFA. Current temperatures are hovering in the mid-upper 50s in most locations, with a few spots in the lower 60s along the coast. Although latest surface observations show visibilities greater than 6SM, there is still a chance of some patchy light fog developing, mainly across the Rio Grande Valley, by sunrise and lifting by mid-late morning. For the rest of day today, 1023mb surface high pressure will settle in across central Texas by this afternoon. This will result in tranquil and beautiful conditions in Deep South Texas, with high temperatures in the lower- mid 70s. Tonight's low temperatures will drop into the low-mid 50s in the Northern Ranchlands and mid-upper 50s across the Rio Grande Valley.

A quick pattern shift will occur beginning late tonight into early Saturday morning as ridging exits eastward and a Baja mid/upper level trough approaches from the west, increasing PWATs between 1.5 to 1.8 inches by Saturday afternoon. Ample lift, warm air advection, and low/mid level moisture will cause showers and possibly an isolated thunderstorm or two to form as early as Saturday morning and continue through the afternoon. A surface trough will likely form along the coast as a weak area of low pressure develops late Saturday afternoon. Rainfall amounts look to be very light through Saturday afternoon, with coastal counties expected to see the highest amounts around a quarter of an inch; areas west of highway 281 will only see a few hundreths of an inch or less. Overcast skies and rain will keep temperatures relatively cool on Saturday, but still abnormally warm for January, with highs in the low-mid 70s.

LONG TERM (Saturday Night through Thursday): The passage of the above-mentioned mid-level trough will create rainy conditions for Saturday night. Monday night through Tuesday, and Thursday, will experience additional potentials for precipitation due to the approach and passage of 500 mb troughs for each time period. Dry weather is anticipated for the remainder of the forecast courtesy of weak mid-level ridging. Meanwhile, at the surface, while near normal overnight low temperatures are expected, high temperatures during the daytime will be at well above normal levels.

MARINE (Now through Saturday): Buoy 42020 reported northeast winds around 16 knots gusting to around 19 knots with seas slightly over 5 feet with a period of 7 seconds at 210 CST/810 UTC. Light to moderate northeast winds and moderate seas will continue this morning. Winds will turn more easterly this afternoon as high pressure shifts eastward across the northern Gulf of Mexico. An upper level disturbance will cause showers and possibly isolated thunderstorms to develop on Saturday morning and continue through the afternoon. Southeast winds return Saturday morning as the surface pressure gradient increases slightly. As a result, winds and seas will increase to Small Craft Exercise Caution levels and perhaps near Small Craft Advisory levels for the offshore coastal waters by Saturday afternoon.

Saturday Night through Thursday: Favorable marine conditions are expected through a majority of the period, with alternating high and low pressure systems producing light to moderate winds and low to moderate seas. The most adverse marine conditions, featuring Small Craft Exercise Caution or even Small Craft Advisory, are anticipated for Saturday night and Sunday due to the passage of a weak cold front.

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

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 Temp	Water Temp	Waves	Pressure	DewPt
PTIT2 - 8779770 - Port Isabel, TX	0 mi	62 min	NE 9.9 G 13	65°F	66°F		1022.3 hPa
BZST2	3 mi	62 min	NE 8.9 G 12	64°F	65°F		1020.6 hPa
PCGT2 - 8779748 - South Padre Island CGS, TX	3 mi	62 min	NE 7 G 11	66°F			1021.5 hPa
PMNT2	36 mi	62 min		64°F	66°F		1022.6 hPa

Wind History for Port Isabel, TX

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Last 24hr

N10 G14

N9

N8 G11

NE9

NE8 G11

NE10 G13

NE8

NE10

NE10 G14

NE10 G16

NE8 G11

NE7 G10

NE7 G10

NE8 G12

N10 G13

NE9

NE9 G12

NE9 G14

NE8

NE6 G10

NE9

NE8 G12

NE12 G15

NE10 G13

1 day ago

S10 G15

SE12 G15

SE8

SE13 G17

SE12 G15

SE14 G17

SE17 G22

SW2 G6

S6

SE9

S7

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SW1

SW1

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S3

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NW5

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N9

2 days ago

E10 G15

E12 G18

E14 G18

E12 G19

E13 G16

E12 G16

E11 G15

SE14 G18

SE15 G19

SE15 G20

SE11 G17

SE10 G13

SE13 G17

SE15 G20

SE15

SE14 G17

SE13 G17

SE15

SE12 G17

SE11 G15

S12 G15

S9 G12

S9

S9

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Airport Reports

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Airport	Dist	Age	Wind kt	Visibility	Sky/Weather	Temp	DewPt	Humidity	Pressure
Port Isabel, Port Isabel-Cameron County Airport, TX	9 mi	63 min	NE 11	10.00 mi	Mostly Cloudy	68°F	53°F	59%	1021.9 hPa
Brownsville, Brownsville / South Padre Island International Airport, TX	16 mi	63 min	NE 12	10.00 mi	Overcast	69°F	55°F	61%	1021.9 hPa

Link to 5 minute data for KSPL

Wind History from SPL (wind in knots)

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Last 24hr

SE7

S7

S10

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W5

SW11

S14

SW13

SW8

SW6

N4

E3

NE7

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Calm

1 day ago

S8

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SW5

NW3

N3

N3

N6

E4

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E13

SE16

NW8

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Calm

Calm

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2 days ago

SE7

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SE3

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SW8

SW11

S20

SW16 G21

SW14 G18

S15

S18

S15

S14

S10

SW9

SW8

S9

S7

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Tide / Current Tables for Port Isabel, Texas

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Tide / Current Tables for Matamoros, Tamaulipas, Mexico

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Weather Map

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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

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Wind Forecast for Brownsville, TX (12,3,4,5)

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Ground Weather Radar Station Brownsville, TX

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Gulf Stream Current

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