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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 6:47AM

Sunset 8:24PM

Thursday July 16, 2020 9:23 AM CDT (14:23 UTC)

Moonrise 2:14AM

Moonset 3:57PM

Illumination 15%

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 161137 AAA AFDBRO

Area Forecast Discussion . UPDATED National Weather Service Brownsville TX 637 AM CDT Thu Jul 16 2020

DISCUSSION. Updated for latest aviation discussion below.

AVIATION. Light southeast winds with a few passing low clouds prevail across portions of deep south Texas early this morning. Mainly VFR conditions are expected for the next 24 hours. Light southeast winds early this morning will increase and become gusty by late morning into the afternoon. Winds will gradually diminish to around 10 knots later this evening.

PREV DISCUSSION. /issued 422 AM CDT Thu Jul 16 2020/

SHORT TERM (Today through Friday): A strong 500mb ridge anchored over northern TX/southern OK will continue to provide very warm to hot conditions across the CWA through the short-term period. An inverted mid-level trough, currently over the northeast Gulf of Mexico, will retrograde west-southwestward today into Friday. This mid-level feature is expected to approach the lower Texas Friday afternoon. Will continue to mention a very low chance (10% chance) of a shower or two developing this afternoon along a weak seabreeze boundary as low level moisture increases. Better rain chances are expected on Friday as deeper moisture arrives and the approach of the inverted mid-level trough. High temperatures today and Friday will generally range from the low to mid 90s near the coast to the 102 to 106 degrees across the west, near Falcon Lake and Zapata County. Heat Index values of 105 to 110 degrees are possible across portions of deep south Texas this afternoon and Friday afternoon. Low temperatures tonight are expected to be in the mid to upper 70s.

LONG TERM (Friday Night through Wednesday): A pretty decent inverted 500 mb trough will undercut the broad ridging in place over the southern states pushing into the RGV Fri Night and Sat. This could give the region a brief window of opportunity for some isold conv through Sat. Meanwhile, a short wave riding over the top of the ridge axis will combine with the inverted troffing undercutting the ridge to maintain a general but persistent weakness in the overall ridge axis. This general weakness will likely persist into the first half of next week which could increase the potential for afternoon and early evening sea breeze activity throughout the longer range period. The main limiting factor will be the lack of serious deep layer tropical moisture over Deep South TX. So will maintain only isold pops for Sat and again for next Wed.

Overall temps may trend gradually downward a few degrees as the ridge axis over the area breaks down somewhat. But expect temps to remain near to above climo for the area for late July.

The 500 mb heights from both the GFS and the ECMWF models are in pretty good agreement through Days 7 and 8. So overall forecast confidence in the longer range period is above average.

MARINE (Now through Friday): Buoy 42020 reported southeast winds around 14 knots gusting to around 18 knots with seas around 3.3 feet with a period of 6 seconds at 0300 CDT/0800 UTC. Moderate winds and low to moderate seas are expected today through Friday as the pressure gradient continues to relax. However, mariners should exercise caution on the Laguna Madre and near shore Gulf waters late this morning into the afternoon due to a slight uptick in the winds.

Friday Night through Monday Night: The PGF will remain pretty weak into the weekend and early next week. This will maintain pretty low seas as a light to moderate S-SE surface winds prevail.No SCA conditions expected through Mon Night.

PRELIMINARY POINT TEMPS/POPS. BAYVIEW/PORT ISABEL 94 79 93 77 / 10 10 20 10 BROWNSVILLE 95 80 95 78 / 10 10 30 10 HARLINGEN 98 78 96 77 / 10 10 30 10 MCALLEN 100 80 98 78 / 10 0 30 10 RIO GRANDE CITY 104 79 103 77 / 0 0 20 10 SOUTH PADRE ISLAND 87 81 86 80 / 10 10 20 10

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

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

63-KC

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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	113 min	SSE 4.1 G 5.1		82°F
BZST2	3 mi	113 min	SSE 2.9 G 4.1		76°F
PCGT2 - 8779748 - South Padre Island CGS, TX	3 mi	113 min	SSE 4.1 G 5.1
RLIT2	14 mi	113 min	SSE 8 G 11		84°F
PMNT2	36 mi	113 min			86°F
42045 - PI-745 TABS K	40 mi	143 min	S 9.7 G 12	82°F	85°F		1015.5 hPa (+1.0)

Wind History for Port Isabel, TX

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Last 24hr

SE10 G14

SE13 G18

SE19 G23

SE17 G22

SE17 G23

SE17 G24

SE21

SE18 G24

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SE14

SE11

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SE12 G16

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SE10 G13

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1 day ago

S10 G14

S13 G17

S13 G18

SE16

SE17 G22

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SE18 G24

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SE16 G20

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SE12 G17

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SE12 G17

SE12 G15

SE11 G15

SE11 G14

SE11

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S10 G15

S6 G9

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SE12

2 days ago

S15 G19

S16 G22

S15 G22

SE17 G22

SE17 G21

SE17 G21

SE18 G24

SE18 G23

SE16 G22

S18 G24

SE19 G25

SE17 G21

SE13 G17

S12 G17

S12

SE9

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S11 G14

S10 G14

S11 G15

S9 G12

S6 G10

S5 G9

S6 G9

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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	30 min	SSE 11	10.00 mi	Fair	86°F	77°F	75%	1015.3 hPa
Brownsville, Brownsville / South Padre Island International Airport, TX	16 mi	30 min	SSE 12	10.00 mi	Fair	86°F	77°F	75%	1015.3 hPa

Link to 5 minute data for KSPL

Wind History from SPL (wind in knots)

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Last 24hr

SE7

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W5

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N4

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NE7

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Calm

1 day ago

S8

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NW3

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E13

SE16

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Calm

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2 days ago

SE7

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S20

SW16 G21

SW14 G18

S15

S18

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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 (10,2,3,4)

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Ground Weather Radar Station Brownsville, TX

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Gulf Stream Current

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