Saturday, November18, 2017 L-36.com


Marine Weather and Tides
El Lago, 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 6:46AMSunset 5:24PM Saturday November 18, 2017 5:50 AM CST (11:50 UTC) Moonrise 6:47AMMoonset 5:55PM Illumination 0% Phase: New Moon; Moon at 29 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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GMZ335 Matagorda Bay-galveston Bay- 327 Am Cst Sat Nov 18 2017
.small craft advisory in effect from this evening through Sunday morning...
Today..Southwest winds 10 to 15 knots becoming west 15 to 20 knots in the afternoon. Bay waters slightly choppy becoming choppy in the afternoon. A chance of showers in the afternoon.
Tonight..North winds 20 to 25 knots becoming 15 to 25 knots after midnight. Bay waters rough becoming choppy after midnight.
Sunday..North winds 15 to 20 knots decreasing to 10 to 15 knots in the afternoon. Bay waters choppy becoming slightly choppy in the afternoon.
Sunday night..Northeast winds 5 to 10 knots. Bay waters smooth.
Monday..East winds 5 to 10 knots becoming southeast in the afternoon. Bay waters smooth. A slight chance of showers.
Monday night..Southeast winds 5 to 10 knots. Bay waters smooth. A slight chance of showers.
Tuesday..South winds 5 to 10 knots becoming southeast in the afternoon. Bay waters smooth becoming smooth to slightly choppy in the afternoon. A chance of showers.
Tuesday night..Northeast winds 10 to 15 knots. Bay waters slightly choppy. A chance of showers.
Wednesday..North winds 15 to 20 knots. Bay waters choppy. A slight chance of showers.
Wednesday night..North winds 10 to 15 knots. Bay waters slightly choppy.
GMZ300 Synopsis For High Island To The Matagorda Ship Channel Out 60 Nautical Miles Including Galveston And Matagorda Bays 327 Am Cst Sat Nov 18 2017
Synopsis for high island to matagorda ship channel out 60 nm.. Moderate to strong south winds will persist today ahead of a cold front. This cold front will push off the coast by this evening with strengthening offshore winds and increasing seas in its wake. Frequent gale force gusts are expected Saturday night with elevated winds and waves persisting through Sunday morning. Weakening northeast winds and lowering seas can be expected late Sunday afternoon through Sunday night. Light to moderate east to southeast winds can then be expected until the next cold front moves through the area late Tuesday into early Wednesday.

7 Day Forecast for Marine Location Near El Lago, TX
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location: 29.56, -95.05     debug


Area Discussion for - Houston/Galveston, TX
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Fxus64 khgx 180955
afdhgx
area forecast discussion
national weather service houston galveston tx
355 am cst Sat nov 18 2017

Discussion
A warm humid night across southeast texas, and breezy as well across
northern areas with a tight surface pressure gradient in place due to
a deep surface low located well off to our NE coupled with a surface
high which is centered in the central gulf. A solid stratus deck has
formed across northwest areas with mostly clear skies closer to the coast.

Near record MAX temps are expected again today across central and southern
areas with west southwest surface winds ahead of a cold front that will
move southeast across the area this afternoon.

Model guidance is in good agreement bringing the strong cold front near
cll around 18z, and then into the houston area 20-21z, and off the coast
23-00z. A strong capping inversion is in place over the area. However, i
think there is enough low-level moisture and lift along the boundary for
isolated to scattered showers to develop around mid-afternoon as the front
moves through houston and to the coast. Winds this evening will really
increase along the coast behind the front, and have decided to issue a wind
advisory for the coastal counties for sustained winds of 20 to 30 mph and
gusts 35 to 40 mph tonight, primarily along the immediate coast and bay
shorelines.

Temps will really warm again on Tuesday ahead of another cold front that
is expected on Wednesday. Will see rain chances return ahead of this front
early next week with dry and cool weather on tap for thanksgiving behind
this front.

Wood

Marine
Moderate to strong onshore flow will persist across the offshore
coastal waters this morning, before weakening during the midday and
afternoon hours as a strong cold front approaches. Strong offshore
flow will become established behind the front as it pushes off the
coast tonight with a thin band of showers possible along the front
as it sweeps across the waters. Frequent gusts near gale force are
expected tonight given the thermal gradient behind the front and
anticipated mixing of stronger gusts above the surface (near surface
winds of 35-40 knots) in response to the warm coastal waters. Waves
will also build accordingly with 4 to 6 feet seas nearshore and 7 to
9 feet seas offshore. Elevated winds and waves are expected to
subside by late Sunday as surface ridging slides across the gulf
coast states.

Light northeasterly winds will gradually become onshore by Tuesday
ahead of the next cold front moving into the waters late Tuesday or
Wednesday, with another round of caution or advisory flags possibly
needed in its wake.

Huffman

Fire
Elevated fire weather conditions will be possible on Sunday behind a
strong cold front as drier air results in minimum relative
humidities falling below 30 percent. Morning 20 ft winds around 5-10
mph inland and 10-15 mph along the coast should decrease through the
the day Sunday, but are expected to overlap with drier conditions
long enough to produce at least a brief window for increased
concerns (especially along the coast where higher winds are
expected). Keetch-byram drought index values along the coast have
increased into the 500-600 range, indicative of dry conditions that
may aid in fire starts in finer fuels like grasses.

Huffman

Preliminary point temps pops
College station (cll) 80 43 64 41 66 10 0 0 0 0
houston (iah) 86 46 66 43 66 20 0 0 0 0
galveston (gls) 82 54 64 54 67 30 10 0 0 10

Hgx watches warnings advisories
Tx... Wind advisory from 6 pm this evening to 6 am cst Sunday for the
following zones: brazoria... Chambers... Galveston...

jackson... Matagorda.

Gm... Small craft advisory from 6 pm this evening to 9 am cst Sunday
for the following zones: galveston bay... Matagorda bay.

Small craft advisory from 6 pm to 9 pm cst this evening for the
following zones: coastal waters from freeport to the
matagorda ship channel out 20 nm... Coastal waters from high
island to freeport out 20 nm... Waters from freeport to the
matagorda ship channel from 20 to 60 nm... Waters from high
island to freeport from 20 to 60 nm.

Gale warning from 9 pm this evening to 9 am cst Sunday for the
following zones: coastal waters from freeport to the
matagorda ship channel out 20 nm... Coastal waters from high
island to freeport out 20 nm... Waters from freeport to the
matagorda ship channel from 20 to 60 nm... Waters from high
island to freeport from 20 to 60 nm.

Small craft advisory until 9 am cst this morning for the
following zones: waters from freeport to the matagorda ship
channel from 20 to 60 nm... Waters from high island to
freeport from 20 to 60 nm.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
KXIH 38 mi35 min WSW 19 75°F 70°F
42035 - GALVESTON 22NM East of Galveston, TX 41 mi60 min SSW 16 G 18 75°F 72°F4 ft1010.3 hPa (-1.3)71°F

Wind History for Morgans Point, TX
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Houston / Ellington, TX8 mi4 hrsS 810.00 miFair72°F69°F94%1011.8 hPa
Houston, Pearland Regional Airport, TX11 mi57 minSSW 610.00 miFair73°F70°F90%1010.4 hPa
Houston, Houston Hobby Airport, TX14 mi57 minSSW 910.00 miFair70°F70°F100%1010.3 hPa
John Dunn Helistop, TX21 mi55 minSSW 910.00 miFair70°F68°F94%1009.8 hPa
Galveston, Scholes Field, TX22 mi58 minSSW 1310.00 miFair72°F71°F97%1010.7 hPa
Houston Southwest Airport, TX23 mi55 minSSW 310.00 miFair68°F66°F96%1010.5 hPa

Wind History from EFD (wind in knots)
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Last 24hrSE3CalmCalmCalmCalmCalmS7S10S13S12S12S13S11SE12S12S8S7S7S4S4--S4S5S8
1 day agoNE2E3NW1CalmE4E3E3E5--E8E9E9E8E8E6E5SE4SE3CalmSE4SE4E3CalmCalm
2 days agoE3CalmCalmCalmE3E6E6SE7--SE4E5E9E8E10E10E5E4CalmCalm--CalmCalmNE1Calm

Tide / Current Tables for Clear Lake, Harris Co. Park, Texas
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Clear Lake
Click for Map
Sat -- 04:45 AM CST     0.57 feet Low Tide
Sat -- 05:42 AM CST     New Moon
Sat -- 06:46 AM CST     Moonrise
Sat -- 06:47 AM CST     Sunrise
Sat -- 08:33 AM CST     0.70 feet High Tide
Sat -- 04:16 PM CST     -0.15 feet Low Tide
Sat -- 05:23 PM CST     Sunset
Sat -- 05:55 PM CST     Moonset
Sat -- 11:56 PM CST     0.79 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.80.70.70.60.60.60.60.70.70.70.60.50.30.20-0.1-0.1-0.1-00.10.30.50.70.8

Tide / Current Tables for Bolivar Roads, Texas Current
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Bolivar Roads
Click for Map
Sat -- 12:14 AM CST     -0.47 knots Max Ebb
Sat -- 03:07 AM CST     -0.10 knots Min Ebb
Sat -- 05:42 AM CST     New Moon
Sat -- 06:45 AM CST     Moonrise
Sat -- 06:45 AM CST     Sunrise
Sat -- 09:05 AM CST     -2.01 knots Max Ebb
Sat -- 01:19 PM CST     0.00 knots Slack
Sat -- 04:45 PM CST     2.10 knots Max Flood
Sat -- 05:22 PM CST     Sunset
Sat -- 05:54 PM CST     Moonset
Sat -- 10:26 PM CST     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.5-0.4-0.2-0.1-0.2-0.5-1-1.5-1.9-2-1.9-1.6-1.1-0.30.61.522.11.81.40.90.50.1-0.2

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 Houston/Galveston, TX (6,6,7,8)
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Ground Weather Radar Station Houston/Galveston, 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.