Friday, January19, 2018 L-36.com


Marine Weather and Tides
Rio Hondo, 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 7:17AMSunset 6:05PM Friday January 19, 2018 5:27 PM CST (23:27 UTC) Moonrise 9:01AMMoonset 8:30PM Illumination 10% Phase: Waxing Crescent; Moon at 3 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- 347 Pm Cst Fri Jan 19 2018
Tonight..East winds around 5 knots shifting southwest after midnight. Smooth on the bay. Chance of drizzle in the evening, then slight chance of drizzle after midnight. Areas of fog after midnight.
Saturday..South winds 5 to 10 knots shifting southeast in the afternoon. A light chop on the bay. Areas of fog in the morning.
Saturday night..Southeast winds 5 to 10 knots becoming south 10 to 15 knots after midnight. A light chop on the bay increasing to a moderate chop after midnight.
Sunday..South winds 15 to 20 knots. Choppy on the bay.
Sunday night..South winds 10 to 15 knots becoming west 5 to 10 knots after midnight. A moderate chop on the bay subsiding to a light chop after midnight. Slight chance of rain.
Monday..North winds 10 to 15 knots. A moderate chop on the bay.
Monday 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.
Tuesday..Northeast winds 5 to 10 knots becoming east 10 to 15 knots in the afternoon. A light chop on the bay increasing to a moderate chop in the afternoon.
Tuesday night..East winds 10 to 15 knots becoming northeast 5 to 10 knots after midnight. A moderate chop on the bay subsiding to a light chop after midnight. Chance of rain.
Wednesday..Northeast winds 10 to 15 knots. A moderate chop on the bay. Rain likely.
Wednesday 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. Chance of rain.
GMZ100 Synopsis For Baffin Bay To Rio Grande Out 60 Nm- 347 Pm Cst Fri Jan 19 2018
Synopsis..Slightly adverse marine conditions are expected along the lower texas coast through the next several days due to the formation of surface low pressure over the western gulf of mexico and the passage of a cold front.

7 Day Forecast for Marine Location Near Rio Hondo, TX
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location: 26.26, -97.53     debug


Area Discussion for - Brownsville, TX
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Fxus64 kbro 192052
afdbro
area forecast discussion
national weather service brownsville tx
252 pm cst Fri jan 19 2018
.Short term (now through Saturday night): an early-season warming
trend is upon us, as southerly flow returns to south texas.

Currently a coastal trough is slowly starting to wrap up and eject
northeastward along the gulf coast. This continues to provide
light northerly wind flow at the surface. Winds quickly change by
the time you reach 1000 feet off the surface, as modest southerly
flow continues to overrun the very shallow cold pool. With the
northerly flow beginning to weaken, -dz continues to decrease
across the region, leaving continued cloudy and grey skies. Some
thinning of the overcast is noted in the far western valley, and
this should slowly shift across the rest of the valley through
the night. The main threat tonight is fog formation. Winds will
settle after midnight, becoming nearly calm. Temperatures are
forecast to remain steady in the low 50s through the night, so
ample moisture from recent precipitation will help bring hazy
conditions. Some fog may become dense in low-lying areas.

Southerly flow returns promptly tomorrow morning, helping to erode
fog and low clouds in the region. With lows already starting
right around 50, should have no trouble reaching into the 70s (!)
tomorrow afternoon. Ample moisture just off the sfc should keep
skies partly to mostly cloudy through the afternoon. Tomorrow
night may see another round of sea fog developing as winds remain
light onshore and water temperatures remain in the low 50s.

.Long term (Sunday through Friday): a return to warmer weather
will occur Saturday and Sunday as mid level ridging moves overhead
and southeast return flow strengthens. Temperatures on Sunday
will be slightly above normal, 76 to 81. Mid level ridging will
shift east late in the weekend as a southern plains storm system
develops. Winds will weaken over the CWA late Sunday, even
shifting to northwest over the brush country and ranchlands late
in the day. The new air mass arriving from the northwest Sunday
night will be from a milder source, basically maritime polar air
from the west coast, and will therefore have lesser impact than
our recent arctic blasts. Winds will shift to moderate north by
Monday morning with temps right around normal, about 70 during the
day, as the front pushes offshore. Temps will in fact hover close
to normal much of the remainder of the week. A brief chance of
rain will be possible Monday morning with the arrival of the cold
front near dawn, but conditions will then improve through the day.

Due to a stronger offshore push than previously noted, and the
arrival of reinforcing pressure over the northwest gulf on
Wednesday, the front looks less likely to push back north over the
cwa, although it could end up supporting coastal low pressure,
possibly enhanced by an approaching short wave trough digging
across texas Wednesday and Thursday. Rain chances, mainly marine
and coastal, will therefore increase from Tuesday evening through
Thursday morning. Onshore flow will eventually become more stable,
east on Friday and southeast on Saturday, as a sharp short wave
trough digs into the southwest united states, supporting a plains
low pressure system. An associated cold front will push into the
area Saturday night.

.Marine:
now through Saturday night: the coastal trough has begun to exit
to the northeast, leaving out coastal waters with light offshore
flow through this evening. Seas are a bit elevated this afternoon,
due to effects from the trough and windier conditions to the
northeast. Conditions should improve tomorrow as the low departs
and modest southerly flow returns. Will need to watch for some sea
fog development as warmer air moves over waters still in the mid
50s. Current forecast has winds from due south, which are not as
conducive for sea fog. Southeast flow continues to bump up
Saturday night, reaching 15 to 20 knots after midnight.

Sunday through Wednesday night: winds will strengthen from the
southeast to south Saturday and Sunday as a plains storm system
deepens and tightens the gradient with high pressure which will be
slowly retreating east over the southeast united states. South
winds of 15 to 20 knots will be possible on the gulf, with
elevated seas poking up to around 7 feet. Winds will weaken late
Sunday ahead of a cold front due Sunday night. The front will
result in north winds of 15 to 20 knots on the gulf Monday and
Monday night with moderate to high seas. Conditions will improve
somewhat Tuesday and Tuesday night as high pressure spreads over
the area, with light to moderate northeast to east winds. The best
chance for small craft should exercise caution conditions on the
laguna madre will be Sunday ahead of the front, with 15 to 20 knot
south winds. Periods of exercise caution conditions will be
possible across the near shore waters through the entire period,
due to a combination of winds and wave heights. The far shore
waters will see 4 to 6 or 5 to 7 feet waves much of the period,
resulting in small craft should exercise conditons to low end
small craft advisory conditions. Strengthening northeast winds
will be possible on Wednesday as the pressure gradient tightens
across the northwest gulf, with higher seas possible.

Preliminary point temps pops
Bayview port isabel 48 69 65 76 20 10 10 10
brownsville 50 73 65 77 20 10 10 10
harlingen 49 73 65 79 10 0 10 10
mcallen 50 74 64 80 0 0 10 10
rio grande city 47 76 62 81 0 0 10 10
south padre island 50 67 64 73 30 10 10 10

Bro watches warnings advisories
Tx... None.

Gm... None.

This product is also available on the web at:
http: weather.Gov rgv
64 54


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
RLIT2 13 mi40 min 55°F1019.7 hPa
PMNT2 21 mi40 min 51°F1019.6 hPa
PTIT2 - 8779770 - Port Isabel, TX 22 mi40 min 49°F1019.6 hPa
PCGT2 - 8779748 - South Padre Island CGS, TX 23 mi40 min 1020 hPa
BZST2 24 mi46 min 52°F1018.5 hPa
42044 - PS-1126 TABS J 26 mi88 min NNE 3.9 G 7.8 38°F 55°F1019.6 hPa (-1.7)35°F

Wind History for Port Isabel, TX
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Harlingen, Rio Grande Valley International Airport, TX8 mi36 minNNW 41.50 miFog/Mist52°F52°F100%1019.4 hPa
Port Isabel, Port Isabel-Cameron County Airport, TX12 mi35 minN 41.75 miLight Rain Fog/Mist53°F52°F96%1019.6 hPa
Weslaco, Mid Valley Airport, TX24 mi33 minN 010.00 miOvercast54°F47°F80%1019.3 hPa

Wind History from HRL (wind in knots)
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Last 24hrN9NW10NW10NW9NW9NW9NW10NW9NW9NW10NW10NW11NW12NW11NW12NW12NW11NW9NW9NW7NW8W9NW6N4
1 day agoN12N11N14N13N10N9------------NW12NW14NW15NW13NW14NW13NW14NW15N15NW16N14N10
2 days agoN19----------------------N12N13N11N13N14N13N15N12N12N12NE11N11

Tide / Current Tables for Port Isabel, Texas
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Port Isabel
Click for Map
Fri -- 07:16 AM CST     Sunrise
Fri -- 08:59 AM CST     Moonrise
Fri -- 10:45 AM CST     -0.35 feet Low Tide
Fri -- 06:02 PM CST     Sunset
Fri -- 07:34 PM CST     1.02 feet High Tide
Fri -- 08:29 PM CST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
10.90.90.90.80.60.40.2-0-0.2-0.3-0.3-0.3-0.10.10.40.60.811110.90.9

Tide / Current Tables for Queen Isabella Causeway (west end), Texas
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Queen Isabella Causeway (west end)
Click for Map
Fri -- 07:16 AM CST     Sunrise
Fri -- 08:59 AM CST     Moonrise
Fri -- 10:21 AM CST     -0.19 feet Low Tide
Fri -- 06:02 PM CST     Sunset
Fri -- 07:53 PM CST     1.03 feet High Tide
Fri -- 08:29 PM CST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.90.90.90.80.70.60.40.20-0.1-0.2-0.2-0.10.10.30.50.70.8111110.9

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 (18,4,5,8)
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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.