Wednesday, June28, 2017 L-36.com


Marine Weather and Tides
Port Mansfield, TX

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
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.

Sunrise 6:40AMSunset 8:28PM Wednesday June 28, 2017 7:22 AM CDT (12:22 UTC) Moonrise 10:27AMMoonset 11:25PM Illumination 20% Phase: Waxing Crescent; Moon at 4 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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GMZ132 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- 400 Am Cdt Wed Jun 28 2017
Today..Northwest winds up to 5 knots becoming north late in the morning, then shifting northeast early in the afternoon shifting east late. Smooth bay waters building to a light chop on the bay in the late morning and afternoon. Chance of showers and Thunderstorms.
Tonight..South winds 5 to 10 knots increasing to around 15 knots after midnight. A light chop on the bay building to a moderate chop on the bay after midnight. Chance of showers and Thunderstorms.
Thursday..South winds 10 to 15 knots becoming southeast around 20 knots late in the afternoon. A moderate chop on the bay building to choppy bay waters late in the afternoon. Chance of showers and Thunderstorms in the morning, then slight chance of showers and Thunderstorms in the afternoon.
Thursday night..Southeast winds around 20 knots diminishing to 10 to 15 knots late in the evening, then becoming south around 20 knots after midnight diminishing to 10 to 15 knots early in the morning. Choppy bay waters. Slight chance of showers.
Friday..Southeast winds 10 to 15 knots increasing to around 20 knots late in the afternoon. A moderate chop on the bay building to choppy bay waters late in the afternoon. Slight chance of showers and Thunderstorms.
Friday night..South winds around 20 knots. Choppy bay waters.
Saturday..Southeast winds 10 to 15 knots increasing to around 20 knots in the afternoon. A moderate chop on the bay building to choppy bay waters in the afternoon.
Saturday night..Southeast winds around 15 knots. A moderate chop on the bay.
Sunday..Southeast winds around 15 knots. A moderate chop on the bay.
Sunday night..Southeast winds around 15 knots. A moderate chop on the bay.
GMZ100 Synopsis For Baffin Bay To Rio Grande Out 60 Nm- 400 Am Cdt Wed Jun 28 2017
Synopsis..Stronger winds and higher seas are expected during the forecast period with high pressure over the gulf of mexico interacting with low pressure over the central plains. Small craft exercise caution and small craft advisory is likely to be needed at times for the lower texas coastal waters.

7 Day Forecast for Marine Location Near Port Mansfield, TX
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location: 26.54, -97.4     debug


Area Discussion for - Brownsville, TX
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Fxus64 kbro 281125 aaa
afdbro
area forecast discussion... Updated
national weather service brownsville tx
625 am cdt Wed jun 28 2017

Discussion Updated for latest aviation discussion below.

Aviation Showers are affecting bro at this time and this has
been built into the latest TAF issuance. Otherwise, the previous
suite of tafs remains largely unchanged, with surface and mid-
level low pressure producing another round of convection this
afternoon.VFR will prevail today with a possible slip into MVFR
tonight depending on cloud coverage, which could be overstated.

Prev discussion issued 318 am cdt Wed jun 28 2017
short term (now through Thursday): weak surface low pressure
over the western gulf of mexico will combine with 500 mb troughing
over the northwest gulf of mexico and deep tropical moisture
within the bro cwfa to produce mainly scattered showers and
thunderstorms for deep south texas and the rio grande valley
today. Convection will wane tonight with the loss of daytime
heating, but streamer activity will affect the adjacent coastal
waters and inland areas along and east of the interstate 69c
corridor. Although the aforementioned 500 mb trough will persist
on Thursday, the convection will decrease to more isolated levels
as drier air begins to work into the region and precipitable water
values fall to below two inches. Temperatures are expected to
warm from near normal levels today to above normal levels on
Thursday as the available atmospheric moisture begins to decrease.

Long term (Thursday night through Tuesday): a weakness in the
500mb ridge across the texas coast will continue Thursday into
Friday providing at least a slight chance of showers and
thunderstorms across the coastal sections of the CWA through the
rest of the week. The 500mb ridge across the eastern gulf of
mexico is expected to build westward into south tx Saturday while
the 500mb ridge across the southwest united states and northern
mexico provides subsidence across southwest tx through the
weekend. Low to mid level moisture will be limited across most of
the state Sunday into early next week. Rain chances will be
limited through the rest of the forecast period as the 500mb
subtropical ridge across the southwest u.S. Shifts eastward
Tuesday.

Marine (now through Thursday): buoy 42020 reported southeast winds
around 6 knots gusting to around 8 knots with seas slightly over 2.5
feet with a period of 6 seconds at 02 cdt 07 utc. Weak low pressure
over the western gulf of mexico will produce light to moderate winds
and low to moderate seas along the lower texas coast today and
tonight. As the low pressure system dissipates and high pressure
over the entire gulf of mexico begins to interact with low pressure
over the central plains tomorrow, winds will increase, and a small
craft exercise caution may be needed for portions or all of the
lower texas coastal waters at that time, especially the laguna
madre.

Thursday night through Sunday... Moderate to strong southeast winds
will prevail across the coastal waters thurs night into Friday
with surface low pressure across west texas and high pressure
across the gulf of mexico. The pressure gradient will remain
strong across the lower tx coast Saturday before weakening on
Sunday. Small craft advisories may be needed for portions of the
coastal waters thurs night through Saturday.

Bro watches warnings advisories None.

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


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PMNT2 2 mi53 min 75°F 85°F1010.5 hPa
RSJT2 - 8777812 - Rincon del San Jose; Potrero Lopeno SW, TX 18 mi53 min NNW 5.1 G 6 77°F 84°F1010.3 hPa
RLIT2 20 mi53 min W 1.9 G 2.9 80°F 83°F1010.5 hPa
42044 - PS-1126 TABS J 30 mi143 min WSW 7.8 G 7.8 80°F 84°F1010.4 hPa73°F
PTIT2 - 8779770 - Port Isabel, TX 35 mi53 min 78°F 86°F1010.6 hPa
PCGT2 - 8779748 - South Padre Island CGS, TX 35 mi53 min WNW 4.1 G 4.1 80°F 1010.9 hPa
BZST2 35 mi53 min W 4.1 G 5.1 80°F 84°F1009.6 hPa
42020 - Corpus Christi, TX 50NM Southeast of Corpus Christi, TX 48 mi93 min SE 9.7 G 12 80°F 3 ft1009.5 hPa (-0.5)74°F

Wind History for Rincon Del San Jose, TX
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Harlingen, Rio Grande Valley International Airport, TX26 mi31 minN 010.00 miFair74°F73°F100%1010.3 hPa

Wind History from HRL (wind in knots)
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Last 24hrN4N54S8W6NE8NE11
G24
E12E13E12E9E12E10NE9E6E3CalmCalmCalmN5NW4N3N3Calm
1 day agoN5N5E7E8NE7E8E11NE10E11E15E14E12E10E6E4E4CalmSE3CalmN3NE4N3N3Calm
2 days agoE5SE15E5E10SE13SE8--SW7CalmCalmN5NE4E9E8CalmE4SE6CalmSE3CalmCalmN3N4N4

Tide / Current Tables for Queen Isabella Causeway (east end), Texas
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Queen Isabella Causeway (east end)
Click for Map
Wed -- 12:44 AM CDT     -0.38 feet Low Tide
Wed -- 06:39 AM CDT     Sunrise
Wed -- 09:26 AM CDT     1.08 feet High Tide
Wed -- 11:26 AM CDT     Moonrise
Wed -- 08:24 PM CDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.4-0.4-0.3-0.10.10.40.60.911.11.110.90.90.80.80.80.70.70.70.60.40.30.1

Tide / Current Tables for Queen Isabella Causeway (west end), Texas
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Queen Isabella Causeway (west end)
Click for Map
Wed -- 12:53 AM CDT     -0.32 feet Low Tide
Wed -- 06:39 AM CDT     Sunrise
Wed -- 09:54 AM CDT     1.01 feet High Tide
Wed -- 11:27 AM CDT     Moonrise
Wed -- 08:24 PM CDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.3-0.3-0.3-0.10.10.30.50.70.91110.90.80.80.70.70.70.70.70.60.50.30.1

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 (8,2,3,4)
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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.