Tuesday, November13, 2018 L-36.com


Marine Weather and Tides
San Leon, TX

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 6:41AMSunset 5:26PM Tuesday November 13, 2018 10:35 PM CST (04:35 UTC) Moonrise 11:50AMMoonset 10:35PM Illumination 36% Phase: Waxing Crescent; Moon at 6 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 Galveston Bay- 934 Pm Cst Tue Nov 13 2018
.low water advisory in effect until 1 pm cst Wednesday...
.small craft should exercise caution...
Rest of tonight..North winds 15 to 20 knots decreasing to 10 to 15 knots after midnight. Bay waters choppy becoming slightly choppy after midnight.
Wednesday..Northwest winds 10 to 15 knots. Bay waters slightly choppy.
Wednesday night..Northwest winds 10 to 15 knots becoming north 5 to 10 knots after midnight. Bay waters slightly choppy becoming smooth after midnight.
Thursday..Northwest winds 5 to 10 knots. Bay waters smooth.
Thursday night..West winds around 5 knots. Bay waters smooth.
Friday..West winds around 5 knots becoming south in the afternoon. Bay waters smooth.
Friday night..Southeast winds around 5 knots. Bay waters smooth.
Saturday..Southeast winds around 5 knots. Bay waters smooth.
Saturday night..Southeast winds 5 to 10 knots. Bay waters smooth.
Sunday..East winds 5 to 10 knots. Bay waters smooth. A slight chance of showers.
Sunday night..East winds around 5 knots becoming northeast after midnight. Bay waters smooth. A slight chance of showers.
GMZ300 Synopsis For High Island To The Matagorda Ship Channel Out 60 Nautical Miles Including Galveston And Matagorda Bays 934 Pm Cst Tue Nov 13 2018
Synopsis for high island to matagorda ship channel out 60 nm.. Moderate to strong northerly winds and elevated seas will be slowly decreasing overnight and Wednesday. The northerly winds are also pushing water out of the bays so there is a low water advisory for tide levels 1 to 1.5 feet below normal. Low seas and light winds are expected by Thursday into Friday.


7 Day Forecast for Marine Location Near San Leon, TX
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location: 29.48, -94.92     debug


Area Discussion for - Houston/Galveston, TX
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Fxus64 khgx 140334
afdhgx
area forecast discussion
national weather service houston galveston tx
934 pm cst Tue nov 13 2018

Discussion
Clouds are clearing to the east and should mostly be out of the
cwa in the next 3 hours or so. Temperatures are dropping quickly
in their wake... Areas north of i-10 and west of i-45 are already
at or below the freezing mark. This is generally in line, or
lower, than what the coldest guidance indicates they'd be at this
time. With clear skies and decreasing winds, think it's prudent
to lower min temps a touch and expand the freeze warning to
include all of southeast texas except the beaches. Otherwise, just
minor tweaks to grids to match ongoing satellite & temp trends.

Also extended the low water advisory until at least noon wed.

Levels are currently running ~2 feet below mllw across portions of
the northern bays which would enhance the risk of vessel
groundings. 47

Prev discussion issued 540 pm cst Tue nov 13 2018
aviation... Clearing line is continuing to progress eastward this
evening and have tweaked skc times with an updated extrapolated
timing accord- ingly with the 00z tafs. Otherwise no restriction
issues expected the next day or so. 41
climate...

smashed records in houston today, as both iah (city of houston)
and hobby have recorded its earliest frozen precip on record, with
a trace of snow graupel. This easily clears the old record at
both sites of november 23.

Galveston's official observation only recorded rain, so its record
of earliest observed snowfall of december 4 appears safe.

As for tonight's freeze, this does come roughly two weeks ahead of
the "average" first freeze. But a closer look at the freeze dates
shows more of a bimodal clustering, with one peak in mid-november
and a larger one in early december. So, it may be fair to say that
our freeze event will likely fall in line with an "early normal".

Perhaps unusual, but not that unusual.

Discussion... 99

Preliminary point temps pops
College station (cll) 26 48 29 57 37 0 0 0 0 0
houston (iah) 30 49 30 56 38 0 0 0 0 0
galveston (gls) 36 50 41 55 49 0 0 0 0 0

Hgx watches warnings advisories
Tx... Freeze warning until 9 am cst Wednesday for the following zones:
chambers... Coastal brazoria... Coastal galveston... Coastal
harris... Coastal jackson... Coastal matagorda... Fort bend...

inland brazoria... Inland galveston... Inland harris... Inland
jackson... Inland matagorda... Northern liberty... Southern
liberty... Wharton.

Freeze warning until 9 am cst Wednesday for the following zones:
austin... Brazos... Burleson... Colorado... Grimes... Houston...

madison... Montgomery... Polk... San jacinto... Trinity...

walker... Waller... Washington.

Gm... Low water advisory until 1 pm cst Wednesday for the following
zones: galveston bay... Matagorda bay.

Small craft should exercise caution until midnight cst tonight
for the following zones: galveston bay... Matagorda bay.

Small craft advisory until 5 am cst Wednesday for the following
zones: coastal waters from freeport to matagorda ship
channel tx out 20 nm... Coastal waters from high island to
freeport tx out 20 nm.

Small craft advisory until 11 am cst Wednesday for the following
zones: waters from freeport to matagorda ship channel tx
from 20 to 60 nm... Waters from high island to freeport tx
from 20 to 60 nm.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
EPTT2 - 8771013 - Eagle Point, TX 0 mi35 min NNW 9.9 G 14 38°F 52°F1032.6 hPa (+1.3)
GRRT2 12 mi35 min NW 12 G 16 38°F 49°F1032.6 hPa (+1.3)
GNJT2 - 8771341 - Galveston Bay (North Jetty), TX 13 mi35 min NNW 19 G 22
MGPT2 - 8770613 - Morgans Point, TX 14 mi35 min NW 13 G 17 39°F 56°F1032.7 hPa (+1.4)
GTOT2 14 mi35 min N 14 G 20 39°F 58°F1032.3 hPa (+1.5)
RLOT2 - 8770971 - Rollover Pass, TX 22 mi35 min N 17 G 21 39°F 48°F1032 hPa (+1.4)
NCHT2 - 8770777 - Manchester, TX 25 mi35 min NNW 5.1 G 8.9 37°F 56°F1032.5 hPa (+1.6)
HIST2 29 mi35 min NNW 9.9 G 13
LUIT2 30 mi35 min NNW 16 G 18 38°F 1032.5 hPa (+1.1)
KXIH 30 mi20 min NNW 9.9 G 19 41°F 34°F
42035 - GALVESTON 22NM East of Galveston, TX 32 mi25 min NNW 21 G 27 42°F 67°F1032.5 hPa40°F
FPST2 42 mi35 min NNW 12 G 14 36°F 62°F1032.4 hPa (+1.3)
FCGT2 - 8772447 - USCG Freeport, TX 42 mi35 min NNW 6 G 11 37°F 56°F1033.3 hPa (+1.3)
SRST2 - Sabine Pass, TX 49 mi35 min NNW 8.9 G 13 37°F 1032 hPa (+1.5)

Wind History for Eagle Point, TX
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Galveston, Scholes Field, TX15 mi43 minNW 15 G 2110.00 miOvercast40°F33°F77%1032.6 hPa
Houston / Ellington, TX16 mi45 minNW 138.00 miPartly Cloudy36°F28°F75%1033.5 hPa
Houston, Pearland Regional Airport, TX17 mi42 minNNW 610.00 miPartly Cloudy37°F30°F76%1033.5 hPa
Houston, Houston Hobby Airport, TX22 mi42 minNNW 1010.00 miA Few Clouds37°F28°F70%1033.6 hPa

Wind History from GLS (wind in knots)
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2 days agoN11N11N10NE11N12NE13N14N15NE17N14N11NE12NE12
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Tide / Current Tables for Eagle Point, Texas
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Eagle Point
Click for Map
Tue -- 01:57 AM CST     1.13 feet High Tide
Tue -- 06:42 AM CST     Sunrise
Tue -- 11:49 AM CST     Moonrise
Tue -- 05:25 PM CST     Sunset
Tue -- 05:56 PM CST     0.19 feet Low Tide
Tue -- 10:36 PM CST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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11.11.11.11.11.11.11110.90.90.80.70.60.40.30.20.20.20.30.40.60.7

Tide / Current Tables for Bolivar Roads, Texas Current
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Bolivar Roads
Click for Map
Tue -- 03:04 AM CST     -0.00 knots Slack
Tue -- 06:41 AM CST     Sunrise
Tue -- 11:48 AM CST     Moonrise
Tue -- 12:50 PM CST     -1.52 knots Max Ebb
Tue -- 05:25 PM CST     Sunset
Tue -- 05:31 PM CST     0.00 knots Slack
Tue -- 09:46 PM CST     1.63 knots Max Flood
Tue -- 10:35 PM CST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.90.60.30-0.3-0.5-0.7-0.8-1-1.1-1.3-1.4-1.5-1.5-1.4-1.2-0.8-0.30.30.91.41.61.61.5

Weather Map and Satellite Images
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wmap_A
GOES Local Image of    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
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Wind Forecast for Houston/Galveston, TX (23,6,7,8)
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Ground Weather Radar Station Houston/Galveston, TX
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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.