Thursday, February22, 2018 L-36.com


Marine Weather and Tides
Clear Lake Shores, 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 6:50AMSunset 6:16PM Thursday February 22, 2018 4:43 AM CST (10:43 UTC) Moonrise 11:17AMMoonset 12:00AM Illumination 46% Phase: First Quarter Moon; Moon at 7 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- 343 Am Cst Thu Feb 22 2018
Today..Northeast winds 5 to 10 knots becoming southeast 10 to 15 knots in the afternoon. Bay waters smooth becoming slightly choppy in the afternoon. Patchy fog in the morning. A chance of showers and Thunderstorms.
Tonight..Southeast winds 5 to 10 knots. Bay waters smooth. Areas of fog. A chance of showers and Thunderstorms.
Friday..Southeast winds 5 to 10 knots increasing to 10 to 15 knots in the afternoon. Bay waters smooth becoming slightly choppy in the afternoon. Areas of fog in the morning. A slight chance of showers and Thunderstorms.
Friday night..Southeast winds 10 to 15 knots. Bay waters slightly choppy. Areas of fog. A slight chance of showers and Thunderstorms.
Saturday..South winds 10 to 15 knots increasing to 15 to 20 knots in the afternoon. Bay waters slightly choppy becoming choppy in the afternoon. Areas of fog in the morning. A chance of showers and Thunderstorms.
Saturday night..Southwest winds 10 to 15 knots becoming north 5 to 10 knots after midnight. Bay waters slightly choppy becoming smooth after midnight. A chance of showers and Thunderstorms.
Sunday..Northeast winds 5 to 10 knots. Bay waters smooth. A chance of showers.
Sunday night..Northeast winds 5 to 10 knots. Bay waters smooth. A chance of showers.
Monday..Northeast winds 5 to 10 knots. Bay waters smooth. A chance of showers.
Monday night..East winds 5 to 10 knots. Bay waters smooth. A chance of showers.
GMZ300 Synopsis For High Island To The Matagorda Ship Channel Out 60 Nautical Miles Including Galveston And Matagorda Bays 343 Am Cst Thu Feb 22 2018
Synopsis for high island to matagorda ship channel out 60 nm.. A stationary front situated from roughly high island to 30nm south of matagorda bay early this morning will be returning north as a warm front today. Areas of dense sea fog is situated near the front and will become a problem again for the bays in the coming days as onshore flow resumes. The next front will push off the coast late Saturday night.

7 Day Forecast for Marine Location Near Clear Lake Shores, TX
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location: 29.55, -95     debug


Area Discussion for - Houston/Galveston, TX
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Fxus64 khgx 221000
afdhgx
area forecast discussion
national weather service houston galveston tx
400 am cst Thu feb 22 2018

Discussion
Early morning southeast texas temperatures are cool in the
wake of yesterday's cold front with upper 30s to lower 40s
north, upper 40s to lower 50s central and lower 60s near
the coast. Radar is showing mainly showers and some isolated
thunderstorms with the greatest concentration generally north
of the i-10 corridor. With a persistent southwest aloft for
the next several days, expect to see periods of showers and
thunderstorms with the higher rain chances up north and the
lower rain chances closer to the coast. An onshore flow
returns to the area and strengthens on Friday and Saturday
resulting in warming temperatures. A cold front moves through
the area Saturday night and cools us back down. An onshore
flow looks to come back on Monday night or Tuesday as surface
high pressure moves off to the east and pressures begin to
fall off to our northwest. 42

Marine
Stationary front situated from roughly high island to 30nm south of
matagorda bay will be returning north as a warm front today. Areas
of dense sea fog is situated near the front and will become a
problem again for the bays as onshore flow resumes. Fog will be an
issue until late Sat night with the passage of another front.

Onshore flow and building seas in advance may require caution flags
in the 20-60nm waters Fri night & sat. Northeast winds behind the
front will prevail for a couple of days before veering onshore again
on tue. 47

Aviation
Poor flying conditions expected with lifr ifr ceilings and areas of
fog shra persisting throughout the day. Metro airports may see a few
hours of MVFR ceilings late in the afternoon once the warm front
passes to the north - but it'll be temporary and expect them to fall
right back down after sunset. Fog and periods of -ra can be expected
overnight as moisture overruns the warm front and subtle
disturbances embedded in the SW flow aloft move overhead. 47

Preliminary point temps pops
College station (cll) 55 53 75 64 75 50 60 40 30 60
houston (iah) 71 62 79 67 79 40 50 30 30 50
galveston (gls) 69 64 73 65 74 30 30 20 20 30

Hgx watches warnings advisories
Tx... None.

Gm... Dense fog advisory until noon cst today 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.

Small craft should exercise caution until noon cst today 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
EPTT2 - 8771013 - Eagle Point, TX 6 mi43 min NNE 6 G 7 61°F 69°F1021.3 hPa (-0.6)
MGPT2 - 8770613 - Morgans Point, TX 9 mi43 min NNW 5.1 G 7 58°F 65°F1021.4 hPa (-0.4)
GRRT2 18 mi43 min NNW 4.1 G 9.9 62°F 71°F1021.2 hPa (-0.3)
NCHT2 - 8770777 - Manchester, TX 19 mi43 min N 4.1 G 6 53°F 66°F1021.1 hPa (-0.6)
GTOT2 20 mi43 min NNW 1.9 G 8 62°F 66°F1020.8 hPa (-0.4)
GNJT2 - 8771341 - Galveston Bay (North Jetty), TX 20 mi43 min NNE 9.9 G 11 65°F1020.6 hPa (-0.4)
RLOT2 - 8770971 - Rollover Pass, TX 26 mi43 min NNE 8.9 G 11 63°F 70°F1021.2 hPa (-0.3)
HIST2 32 mi43 min NNE 4.1 G 8 63°F 69°F1021.6 hPa (+0.0)
LUIT2 33 mi43 min N 8.9 G 11 60°F 1020.7 hPa (-0.6)
KXIH 36 mi28 min NNE 7 64°F 64°F
42035 - GALVESTON 22NM East of Galveston, TX 38 mi53 min NNW 3.9 G 5.8 62°F 60°F3 ft1021.1 hPa (-0.0)62°F
42043 - GA-252 TABS B 40 mi103 min 7.8 G 9.7 61°F 64°F1020.6 hPa (-0.6)
FCGT2 - 8772447 - USCG Freeport, TX 45 mi43 min NNW 7 G 9.9 56°F 67°F1021.4 hPa

Wind History for Eagle Point, TX
(wind in knots)    EDIT      (on/off)   Help
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SE7
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G28
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N5
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SE13
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G20
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S13
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G16
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G16
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G15
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G20

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Houston / Ellington, TX10 mi1.9 hrsN 74.00 miFog/Mist54°F53°F100%1022 hPa
Houston, Pearland Regional Airport, TX13 mi50 minN 42.50 miFog/Mist54°F54°F100%1021.8 hPa
Houston, Houston Hobby Airport, TX16 mi50 minN 84.00 miFog/Mist53°F53°F100%1021.9 hPa
Galveston, Scholes Field, TX21 mi51 minN 104.00 miFog/Mist64°F63°F96%1021.1 hPa
John Dunn Helistop, TX24 mi48 minVar 5 G 121.50 miFog/Mist52°F51°F100%1021.3 hPa

Wind History from EFD (wind in knots)
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Last 24hrS14
G22
S6SE7SE5SE8SE10S12S12
G17
S15
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S17
G25
S17
G24
S13
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NW9NW8NW5--NW7NW10NW6--NW8--N7
1 day agoSE13
G19
SE12
G22
SE10
G16
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G18
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SE12SE14
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G25
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G25
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SE13SE10SE10SE10SE10SE8SE9SE6SE5
2 days agoS10--SE8S6SE8SE12S15
G22
S14
G22
S15
G22
--SE16
G22
S17
G21
SE12
G21
SE15SE13SE14SE15SE13--SE14SE13
G19
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G19
SE12SE12

Tide / Current Tables for Clear Lake, Harris Co. Park, Texas
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Clear Lake
Click for Map
Thu -- 01:42 AM CST     0.36 feet High Tide
Thu -- 06:53 AM CST     Sunrise
Thu -- 09:00 AM CST     -0.24 feet Low Tide
Thu -- 11:17 AM CST     Moonrise
Thu -- 04:41 PM CST     0.34 feet High Tide
Thu -- 06:14 PM CST     Sunset
Thu -- 08:05 PM CST     0.29 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.30.30.40.30.20.1-0-0.2-0.2-0.2-0.2-0.2-0.10.10.20.30.30.30.30.30.30.30.30.3

Tide / Current Tables for Bolivar Roads, Texas Current
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Bolivar Roads
Click for Map
Thu -- 02:31 AM CST     -1.51 knots Max Ebb
Thu -- 06:24 AM CST     0.00 knots Slack
Thu -- 06:51 AM CST     Sunrise
Thu -- 09:42 AM CST     1.59 knots Max Flood
Thu -- 11:16 AM CST     Moonrise
Thu -- 02:37 PM CST     -0.00 knots Slack
Thu -- 05:30 PM CST     -0.32 knots Max Ebb
Thu -- 06:13 PM CST     Sunset
Thu -- 08:37 PM CST     -0.20 knots Min Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-1-1.3-1.5-1.5-1.3-0.9-0.30.41.11.51.61.410.60.2-0.1-0.2-0.3-0.3-0.3-0.2-0.2-0.4-0.6

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 (5,6,7,8)
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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.