Marine Weather and Tides
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 6:49AM||Sunset 5:40PM||Saturday November 18, 2017 4:26 AM CST (10:26 UTC)||Moonrise 6:52AM||Moonset 6:11PM||Illumination 0%|
EDIT (on/off)  Help
|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- 358 Am Cst Sat Nov 18 2017 |
.small craft advisory for winds in effect from this evening through Sunday morning...
Today..South winds 10 to 15 knots. A moderate chop on the bay.
Tonight..North winds 20 to 25 knots. Rough on the bay. Scattered rain showers in the evening, then isolated rain showers after midnight.
Sunday..North winds 15 to 25 knots becoming 15 to 20 knots in the afternoon. Rough on the bay subsiding to choppy in the afternoon.
Sunday night..Northeast 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.
Monday..East winds 5 to 10 knots. A light chop on the bay. Chance of rain showers.
Monday night..South winds 5 to 10 knots. A light chop on the bay.
Tuesday..South winds around 5 knots becoming southeast in the afternoon. Smooth on the bay increasing to a light chop in the afternoon.
Tuesday night..East winds 5 to 10 knots shifting north after midnight. A light chop on the bay.
Wednesday..North winds 15 to 20 knots. Choppy on the bay.
Wednesday night..North winds 10 to 15 knots. A moderate chop on the bay.
|GMZ100 Synopsis For Baffin Bay To Rio Grande Out 60 Nm- 358 Am Cst Sat Nov 18 2017 |
Synopsis..A slight increase in seas and southerly winds will continue this morning due to a tighter pressure gradient from low pressure across the central plains and elongated high pressure across the eastern united states coast. Hazardous marine conditions will develop tonight through Sunday night in the wake of a strong cold front. A gale warning is in effect for the gulf waters and a small craft advisory is in effect for the laguna madre tonight into Sunday morning. Additional small craft advisories will likely be needed on Sunday. Marine conditions will gradually improve early next week as high pressure builds across the northern gulf of mexico.
7 Day Forecast for Marine Location Near Villa Pancho, TXHourly EDIT Help
Area Discussion for - Brownsville, TX  (on/off)  Help NOTE: mouseover dotted underlined text for definition
|Fxus64 kbro 180946|
area forecast discussion
national weather service brownsville tx
346 am cst Sat nov 18 2017
.Short term (today through Sunday): the latest surface analysis shows
a cold front across oklahoma with a dry line extending into west
texas. Water vapor imagery and satellite total precipitable water
continues to indicate a dry air mass remains in place across much of
texas courtesy of mid level ridging anchored over northern mexico.
The cold front is forecast to move south across texas today and
approach the northern ranchlands this evening. Ahead of the cold
front, a very warm day with above normal temperatures are expected
across deep south texas today. High temperatures will be in the
upper 80s to around 90 degrees with a mix of Sun and clouds. Near
record to record high temperatures are possible today.
The strong cold front is expected to move through deep south texas
this evening. Despite the dry airmass, isolated to scattered showers
are possible along the front, especially across the coastal waters.
In the wake of the front, temperatures expected to quickly fall into
the 60s before midnight. Breezy north winds will persist overnight
with clearing skies. Low temperatures tonight will range from the
low 50s across the northern ranchlands to the lower 60s along the
beaches. Surface high pressure settles across the region on Sunday
resulting in diminishing northeast winds and below normal
temperatures. High temperatures on Sunday will be in the upper 60s
to lower 70s.
.Long term (Sunday night through Friday): for the Sunday night
through Tuesday period, a broad upper trough will dig and spread
across the eastern half of the us. The forecast area will
generally remain on the backside of the trough. Onshore flow with
somewhat above normal moisture for this time of the year will
bring slight chances of showers to much of the eastern half of the
forecast area during the day on Monday. High temperatures on
Monday look to hover in the lower mid 70s. For Tuesday, the
models push a cold front south into deep south tx somewhere in the
late afternoon evening timeframe and this will have the net
effect of pushing low level moisture offshore and am expecting
little precipitation with the passage of the front. The ECMWF is
a little stronger with the front compared to the gfs, so have
split the difference in terms of wind speeds in the forecast. High
temperatures Tuesday afternoon ahead of the front will generally
rise into the upper 70s to mid 80s.
Wednesday through Friday looks dry across the region as modest|
northwest-north flow prevails aloft with weak high pressure
at the surface. The GFS and ECMWF both maintain near to somewhat
above normal temperatures across the rio grande valley during the
three-day time period, though the ECMWF is carrying somehwat
higher temperatures than the gfs. Will keep highs area-wide in the
lower mid 70s for Wed Thu with mid upper 70s for Friday.
.Marine (today through Sunday): buoy 42045 (tglo tabs buoy k)
recently reported southwest winds around 17 knots gusting to
around 20 knots. Low pressure across north texas will support a
tight pressure gradient along the lower texas coast this morning.
Small craft should exercise caution on the gulf waters this
morning due to elevated winds and seas. There will be some slight
improvement on gulf waters this afternoon as the pressure gradient
relaxes. However, this will be short lived as the strong cold
front moves through the lower texas coastal waters late this
evening and overnight bringing hazardous marine conditions. A gale
warning is in effect from 8 pm tonight through 9 am Sunday for
the gulf waters 0- 60 nm east of padre island due to sustained
winds near gale force and frequent gale force gusts. A small craft
advisory is in effect from 8 pm tonight to 9 am Sunday for the
laguna madre due to strong north winds.
Sunday night through Wednesday: the period will begin with
elevated wave heights with small craft advisory conditions in
place, though seas will slowly subside Sunday night through
Monday. Surface high pressure will be in place across the waters
Monday night Tuesday for modest winds seas. Wave heights will be
on the increase again with freshening winds Tuesday night as a
cold front moves across the waters. Small craft advisory
conditions will redevelop Tuesday night and continue through
Bro watches warnings advisories
Gm... Small craft advisory for winds from 8 pm this evening to 9 am
cst Sunday for gmz130-132-135.
Gale warning from 8 pm this evening to 9 am cst Sunday for
This product is also available on the web at:
http: weather.Gov rgv
Weather Reporting StationsEDIT (on/off)  Help NOTE: Click on distance to see the station location on a map
|Stations||Dist||Age||Wind||Air Temp||Water Temp||Waves||Pressure||DewPt|
|42045 - PI-745 TABS K||59 mi||117 min||SW 18 G 21||78°F||1010.6 hPa|
Wind History for Port Isabel, TX(wind in knots) EDIT (on/off)  Help
Airport ReportsEDIT (on/off)  Help Click EDIT to display multiple airports
|Brownsville, Brownsville / South Padre Island International Airport, TX||5 mi||34 min||S 9||10.00 mi||Fair||75°F||70°F||84%||1010.4 hPa|
|Port Isabel, Port Isabel-Cameron County Airport, TX||22 mi||34 min||S 10||10.00 mi||Fair||73°F||70°F||90%||1010.1 hPa|
Wind History from BRO (wind in knots)
|1 day ago||E||Calm||E||SE||SE||SE||SE||SE||SE||SE||S||S||S||SE||SE||SE||SE||SE||SE||SE||SE||S||S||S|
|2 days ago||S||Calm||Calm||Calm||SE||SE||SE||SE||SE||SE||SE||SE||SE||E||SE||E||E||E||Calm||E||E||Calm||E||Calm|
EDIT RT Ports Option Weekend mode (on/off) (on/off)  Help One Week of Data
Click for Map
Sat -- 12:04 AM CST 1.27 feet High Tide
Sat -- 05:42 AM CST New Moon
Sat -- 06:50 AM CST Sunrise
Sat -- 06:51 AM CST Moonrise
Sat -- 08:40 AM CST 0.06 feet Low Tide
Sat -- 05:31 PM CST 1.62 feet High Tide
Sat -- 05:39 PM CST Sunset
Sat -- 06:11 PM CST Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
EDIT (on/off)  Help One Week of Data
|Port Isabel |
Click for Map
Sat -- 05:42 AM CST New Moon
Sat -- 06:49 AM CST Sunrise
Sat -- 06:50 AM CST Moonrise
Sat -- 08:50 AM CST 0.19 feet Low Tide
Sat -- 05:38 PM CST Sunset
Sat -- 05:53 PM CST 1.66 feet High Tide
Sat -- 06:09 PM CST Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Weather Map and Satellite Images(on/off)  Help
|Weather Map ||IR Satellite Image from GEOS|
GOES Local Image of SouthCentralPlains EDIT
Wind Forecast for Brownsville, TX (5,6,7,8)(on/off)  Help
Ad by Google
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.