Friday, October20, 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 7:32AMSunset 6:58PM Friday October 20, 2017 1:01 PM CDT (18:01 UTC) Moonrise 7:13AMMoonset 6:53PM Illumination 0% Phase: New Moon; Moon at 0 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- 1027 Am Cdt Fri Oct 20 2017
Rest of today..Southeast winds around 5 knots increasing to 10 to 15 knots in the afternoon. Smooth on the bay increasing to a moderate chop in the afternoon.
Tonight..Southeast 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. Slight chance of showers.
Saturday..Southeast winds 5 to 10 knots increasing to 10 to 15 knots in the afternoon. A light chop on the bay increasing to a moderate chop in the afternoon. Slight chance of showers.
Saturday night..Southeast winds 10 to 15 knots becoming south 5 to 10 knots after midnight. A moderate chop on the bay subsiding to a light chop after midnight. Slight chance of showers.
Sunday..Northwest winds 5 to 10 knots shifting northeast in the afternoon. A light chop on the bay. Chance of showers and Thunderstorms.
Sunday night..North winds 15 to 20 knots diminishing to 10 to 15 knots after midnight. Choppy on the bay subsiding to a moderate chop after midnight.
Monday..North winds 10 to 15 knots. A moderate chop on the bay.
Monday night..Northeast winds 5 to 10 knots becoming north after midnight. A light chop on the bay subsiding to smooth after midnight.
Tuesday..North winds 5 to 10 knots becoming northeast 10 to 15 knots in the afternoon. A light chop on the bay increasing to a moderate chop in the afternoon.
Tuesday night..North winds 15 to 20 knots. Choppy on the bay.
GMZ100 Synopsis For Baffin Bay To Rio Grande Out 60 Nm- 1027 Am Cdt Fri Oct 20 2017
Synopsis..The passage of a cold front late in the weekend, and a reinforcing surge of air in the wake of that front early next week, will likely produce small craft advisory conditions through most of Sunday night through Tuesday. In advance of the cold front, light to moderate winds and generally moderate seas are anticipated.

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 201747 aab
afdbro
area forecast discussion... Updated
national weather service brownsville tx
1247 pm cdt Fri oct 20 2017

Discussion Updated for latest aviation discussion below.

Aviation Onshore flow at the surface continues to pull gulf
moisture inland. Dry air remains stable just off the surface,
holding daytime CU to a low level. Overnight this setup will allow
for more fog to form, and will likely be a little more widespread
near dawn. Have added tempo fog for bro and mfe, and persistent
fg for hrl, similar to last night.

Prev discussion issued 632 am cdt Fri oct 20 2017
discussion... Updated for latest aviation discussion below.

Aviation... Shallow ground fog appears to be affecting hrl and
this has been accounted for by adding mifg to the TAF for this
aerodrome. Meanwhile, bro and mfe are fullVFR. Light winds with
a few clouds will prevail for all aerodromes after sunrise this
morning. Another round of light fog is possible tonight but has
not been included in the current tafs or the official forecast.

Prev discussion... Issued 402 am cdt Fri oct 20 2017
short term (now through Saturday): 500 mb high pressure centered
just east of the mississippi river delta at the start of the short
term forecast period will gradually shift east-northeast as a deep
500 mb trough moves into the central plains. Dry weather over the
entire bro cwfa today will yield to isolated showers over only the
lower texas coastal waters tonight and Friday courtesy of this
pattern. Mostly clear to partly cloudy skies will result in well
above normal temperatures.

Long term (Saturday night through Thursday): a cold front will move
across central texas Saturday night. Ahead of the front, isolated to
scattered showers are possible over the immediate coastal counties
and the coastal waters Saturday night. Low temperatures Saturday
night will fall into the 70s under partly cloudy skies. The cold
front is still expected to move through deep south texas Sunday
afternoon. Isolated to scattered showers and thunderstorms will
develop along the front with the best rain chances remaining well
north of the area. High temperatures on Sunday should climb into the
90s before the cold front arrives. Slightly cooler and drier air
filters into the region in the wake of the front. Reinforcing high
pressure will surge into the deep south texas on Tuesday prolonging
the dry and more comfortable airmass. Near to above normal
temperatures will prevail through the rest of the forecast period.

Marine (now through Saturday): light to moderate winds and
generally moderate seas are expected along the lower texas coast
during the period with high pressure over the northern half of the
gulf of mexico interacting with lower pressure over the southern
half and the bay of campeche. Forecast sea heights may be high
enough such that small craft exercise caution may be needed for the
far offshore gulf of mexico waters tonight and Saturday.

Saturday night through Tuesday night... Light to moderate southeast
winds and elevated seas will persist Saturday night into Sunday as a
cold front approaches deep south texas. Moderate north winds will
develop Sunday afternoon and become strong Sunday night as high
pressure behind the front spreads over the area. Winds will
gradually shift to northeast through Tuesday night. Seas will build
over the gulf waters Sunday night through Monday in the wake of the
front and again Tuesday night and Wednesday due to a reinforcing
surge of high pressure. Small craft advisory likely for the gulf
waters Sunday night and Monday and again Tuesday night and
Wednesday. Scattered showers and thunderstorms will develop ahead
and along the front Saturday night and Sunday.

Bro watches warnings advisories
Tx... None.

Gm... None.

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


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PMNT2 2 mi43 min 79°F 78°F1015.6 hPa
RSJT2 - 8777812 - Rincon del San Jose; Potrero Lopeno SW, TX 18 mi43 min SSE 1.9 G 2.9 80°F 76°F1015.3 hPa
RLIT2 20 mi43 min E 5.1 G 5.1 81°F 78°F1015.7 hPa
PTIT2 - 8779770 - Port Isabel, TX 35 mi43 min SE 7 G 9.9 82°F 78°F1015.5 hPa
BZST2 35 mi49 min SE 5.1 G 6 80°F 1015 hPa
PCGT2 - 8779748 - South Padre Island CGS, TX 35 mi43 min ESE 6 G 8 81°F 1016.1 hPa

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 mi69 minS 510.00 miPartly Cloudy84°F71°F65%1015.4 hPa

Wind History from HRL (wind in knots)
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Last 24hrNE5NE10NE13NE10E10NE7E5E5SE4CalmCalmE3E4E3CalmCalmCalmE5E4E3E5SE8S53
1 day ago3CalmE7E11E10E10E7E6E3CalmCalmCalmCalmCalmNW4N3NW4NW4NW4N3N4CalmE55
2 days agoN10
G15
N7NE8E11E11NE11NE7NE7E5CalmCalmW4NW5NW4NW4NW4NW4N3W4NW5NW4NW3Calm3

Tide / Current Tables for Queen Isabella Causeway (east end), Texas
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Queen Isabella Causeway (east end)
Click for Map
Fri -- 02:44 AM CDT     1.38 feet High Tide
Fri -- 07:30 AM CDT     Sunrise
Fri -- 08:11 AM CDT     Moonrise
Fri -- 10:01 AM CDT     0.47 feet Low Tide
Fri -- 06:05 PM CDT     1.76 feet High Tide
Fri -- 06:55 PM CDT     Sunset
Fri -- 07:53 PM CDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.11.21.31.41.31.210.80.70.50.50.50.70.91.11.41.61.71.81.71.61.51.31.2

Tide / Current Tables for Queen Isabella Causeway (west end), Texas
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Queen Isabella Causeway (west end)
Click for Map
Fri -- 03:12 AM CDT     1.28 feet High Tide
Fri -- 07:30 AM CDT     Sunrise
Fri -- 08:11 AM CDT     Moonrise
Fri -- 10:10 AM CDT     0.39 feet Low Tide
Fri -- 06:33 PM CDT     1.64 feet High Tide
Fri -- 06:55 PM CDT     Sunset
Fri -- 07:53 PM CDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
11.11.21.31.31.210.80.60.50.40.40.50.711.21.41.51.61.61.51.41.21.1

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 (14,3,4,5)
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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.