Wednesday, March29, 2017 L-36.com


Marine Weather and Tides
South Padre Island, TX

Version 3.4
What's New / NOTES
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.

Sunrise 7:21AMSunset 7:46PM Wednesday March 29, 2017 6:12 AM CDT (11:12 UTC) Moonrise 7:40AMMoonset 8:39PM Illumination 4% Phase: Waxing Crescent; Moon at 2 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- 426 Am Cdt Wed Mar 29 2017
.small craft advisory for winds in effect until 8 am cdt this morning...
Today..South winds 14 to 19 knots becoming southwest 8 to 13 knots late in the morning, then becoming northeast around 7 knots early in the afternoon shifting east 7 to 8 knots late. Choppy on the bay subsiding to a moderate chop late in the morning, then subsiding to a light chop in the afternoon. Isolated showers and Thunderstorms in the morning.
Tonight..Southeast winds 7 to 9 knots shifting south after midnight, then becoming west 9 to 14 knots early in the morning. A light chop on the bay increasing to a moderate chop early in the morning. Isolated showers and Thunderstorms after midnight.
Thursday..North winds 18 to 23 knots diminishing to 13 to 18 knots early in the afternoon, then becoming northeast 8 to 12 knots late in the afternoon. Rough on the bay subsiding to choppy early in the afternoon, then subsiding to a light chop late in the afternoon.
Thursday night..Southeast winds 7 to 11 knots. A light chop on the bay.
Friday..South winds 7 to 11 knots becoming southeast 14 to 18 knots. A light chop on the bay increasing to choppy.
Friday night..Southeast winds 14 to 18 knots. Choppy on the bay.
Saturday..Southeast winds 15 to 18 knots. Choppy on the bay.
Saturday night..Southeast winds 13 to 18 knots. Choppy on the bay.
Sunday..South winds 8 to 13 knots. A moderate chop on the bay. Chance of showers and Thunderstorms.
Sunday night..North winds 7 to 12 knots. A light chop on the bay. Slight chance of showers and Thunderstorms.
GMZ100 Synopsis For Baffin Bay To Rio Grande Out 60 Nm- 426 Am Cdt Wed Mar 29 2017
Synopsis..Strong south winds across the coastal waters this morning will diminish this afternoon as a surface trough moves across the lower texas coast. Light to moderate south winds offshore the lower texas coast this afternoon will back to the southeast tonight before a weak cold front moves through the coastal waters late tonight. Winds will shift to the southwest late tonight and northwest Thursday morning and increase. Small craft advisories will be needed for the laguna madre and offshore Thursday morning for strong northwest winds in the wake of the front. Winds will diminish and veer to the northeast Thursday afternoon as high pressure moves over the northwest gulf of mexico.

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 290901
afdbro
area forecast discussion
national weather service brownsville tx
401 am cdt Wed mar 29 2017
.Short term (today through Thursday): satellite and radar images
continue to indicate the quasi-linear convective system across north-
central and central texas early this morning continues to move
eastward. Some convection is trying to develop on the southwest
flank of the line of showers and thunderstorms but the warm and dry
air aloft across the rio grande plains appears to be inhibiting
development further south. With that said... Cannot rule out isolated
showers and thunderstorms developing across the CWA this
morning... Mainly across the northern ranchlands... Before the
prefrontal trough moves through later this morning. Dry air will
filter into the area this afternoon and west to northwest flow will
provide compressional heating which will result in temperatures into
the 90s to near 100 in some locations this afternoon. The record
high for mcallen in 99 degrees set in 2000 and temperatures will be
near record highs for the mcallen area today. A weak cold front will
move into deep south tx late tonight and this will provide a slight
chance of showers and thunderstorms... Mainly across the eastern
portions of the cwa... Late tonight through early thurs morning
before the front moves offshore the lower tx coast. Some slightly
cooler air will filter into the area Thursday providing near normal
temperatures for the area for a change.

.Long term (Thursday night through Tuesday): by Thursday night,
the larger h5 trough has swept through the region, and drier air
is fully returning to the region at all levels. Ridging aloft
continues for the area into the beginning of the weekend, keeping
temperatures well into the 90s. Starting Sunday, the next large h5
trough sweeps out of the four corners region into texas. And as
with the previous few midlevel disturbances, the main dynamics
remain well to the north, and dry air punches into the region
early during passage. This will limit local chances again for
showers, with better chances the further north you go. The
progressive pattern continues to advance early next week, with h5
ridge moving in on the heels of the weekend trough, keeping
temperatures in the 90s through the middle of next week.

.Marine:
today through Thursday: seas were near 8 feet with south winds
near 18 knots at buoy020 early this morning. Strong south winds
across the coastal waters this morning will diminish this
afternoon as a surface trough moves across the lower texas coast.

Will continue SCA for the offshore waters through this afternoon
and let SCA for the laguna madre expire this morning. Light to
moderate south winds offshore the lower tx coast this afternoon
will back to the southeast tonight before a weak cold front moves
through the coastal waters late tonight. Winds will shift to the
southwest late tonight and northwest thurs morning and increase.

Small craft advisories will be needed for the laguna madre and
offshore thurs morning for strong northwest winds in the wake of
the front. Winds will diminish and veer to the northeast thurs
afternoon as high pressure moves over the northwest gulf of
mexico.

Friday through Sunday: moderate southeast flow continues to sweep
northward across the northwest gulf, keeping seas agitated over
the weekend. Winds will generally remain 15 to 20 knots, with
higher gusts during the overnight hours. Seas will build again to
5 to 6 feet over the weekend, as a long fetch develops across the
gulf. A weak cold front will move across the gulf waters Sunday
afternoon, briefly shifting winds to the north, but remaining
around 10 knots.

Preliminary point temps/pops
Bayview/port isabel 93 65 82 65 / 20 20 10 0
brownsville 92 66 84 63 / 20 20 10 0
harlingen 94 65 86 62 / 20 20 10 0
mcallen 98 63 85 62 / 10 20 0 0
rio grande city 98 62 88 61 / 10 20 0 0
south padre island 87 66 81 68 / 20 20 10 0

Bro watches/warnings/advisories
Tx... None.

Gm... Small craft advisory for winds until 8 am cdt this morning for
gmz130-132-135.

Small craft advisory until 7 pm cdt this evening for gmz150-155-
170-175.

This product is also available on the web at:
http://weather.Gov/rgv
61/64


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PCGT2 - 8779748 - South Padre Island CGS, TX 3 mi42 min S 20 G 24 76°F 1003.7 hPa
PTIT2 - 8779770 - Port Isabel, TX 4 mi42 min SSE 19 G 24 76°F 76°F1003.2 hPa
42044 - PS-1126 TABS J 8 mi162 min SSE 18 G 21 75°F 75°F1003.9 hPa71°F
RLIT2 12 mi42 min SSE 19 G 26 75°F1003.1 hPa
PMNT2 34 mi42 min 76°F 78°F1002.7 hPa

Wind History for South Padre Island C.G Station, TX
(wind in knots)    EDIT      (on/off)   Help
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SE9
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G15
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S11
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G23
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G25
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S13
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G17
S10
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G14
S12
G15
S9

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Port Isabel, Port Isabel-Cameron County Airport, TX10 mi19 minSSE 18 G 267.00 miOvercast and Breezy77°F72°F85%1002.9 hPa
Brownsville, Brownsville / South Padre Island International Airport, TX20 mi19 minSSE 21 G 2910.00 miOvercast and Breezy77°F73°F88%1003.2 hPa

Wind History from SPL (wind in knots)
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Last 24hrSE7S7S10S8S8S9S8W5SW11S14SW13SW8SW6N4E3NE7NE6E4E5E6E4E3E4Calm
1 day agoS8S7S4SW5NW3N3N3N6E4NE4E5E13SE16NW8S4S7S5CalmCalmSE6SE6SE5SE6SE5
2 days agoSE7SE7SE8SE3S5S6S6SW5NW3NW4SW8SW11S20SW16
G21
SW14
G18
S15S18S15S14S10SW9SW8S9S7

Tide / Current Tables for Queen Isabella Causeway (east end), Texas
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Queen Isabella Causeway (east end)
Click for Map
Wed -- 05:33 AM CDT     1.19 feet High Tide
Wed -- 07:22 AM CDT     Sunrise
Wed -- 08:39 AM CDT     Moonrise
Wed -- 11:48 AM CDT     0.50 feet Low Tide
Wed -- 04:16 PM CDT     0.81 feet High Tide
Wed -- 07:44 PM CDT     Sunset
Wed -- 09:39 PM CDT     Moonset
Wed -- 11:03 PM CDT     -0.01 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.30.50.70.91.11.21.21.10.90.80.60.50.50.50.60.70.80.80.70.50.40.20-0

Tide / Current Tables for Matamoros, Tamaulipas, Mexico
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Matamoros
Click for Map
Wed -- 04:47 AM CST     1.25 feet High Tide
Wed -- 06:23 AM CST     Sunrise
Wed -- 07:41 AM CST     Moonrise
Wed -- 10:39 AM CST     0.58 feet Low Tide
Wed -- 03:40 PM CST     0.92 feet High Tide
Wed -- 06:45 PM CST     Sunset
Wed -- 08:40 PM CST     Moonset
Wed -- 10:12 PM CST     -0.02 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.40.70.91.11.21.21.210.90.70.60.60.60.70.80.90.90.80.70.50.20.1-00

Weather Map and Satellite Images
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Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of SouthCentralPlains    EDIT
Geos

Wind Forecast for Brownsville, TX (7,2,3,4)
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Ground Weather Radar Station Brownsville, TX
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weather_mapweather_map weather_map

Gulf Stream Current


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Disclaimer:
The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerious of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.