Tuesday, October22, 2019 L-36.com


Marine Weather and Tides
Jamaica Beach, TX

Version 3.4
NOTICE
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 7:23AMSunset 6:43PM Tuesday October 22, 2019 7:05 PM CDT (00:05 UTC) Moonrise 12:15AMMoonset 2:17PM Illumination 31% Phase: Waning Crescent; Moon at 24 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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GMZ355 Expires:201910231000;;115892 Fzus54 Khgx 222046 Cwfhgx Coastal Waters Forecast National Weather Service Houston/galveston Tx 346 Pm Cdt Tue Oct 22 2019 Upper Texas Coastal Waters From High Island To The Matagorda Ship Channel Out 60 Nautical Miles Including Galveston And Matagorda Bays Seas Are Provided As A Range Of The Average Height Of The Highest 1/3 Of The Waves...along With The Occasional Height Of The Average Highest 10 Percent Of The Waves. Gmz350-355-231000- Coastal Waters From Freeport To Matagorda Ship Channel Tx Out 20 Nm-coastal Waters From High Island To Freeport Tx Out 20 Nm- 346 Pm Cdt Tue Oct 22 2019
.small craft should exercise caution...
Tonight..East winds 15 to 20 knots. Seas 3 to 5 feet.
Wednesday..Southeast winds 15 to 20 knots. Seas 3 to 5 feet.
Wednesday night..Southeast winds 15 to 20 knots. Seas 3 to 5 feet.
Thursday..Southeast winds around 15 knots. Seas 3 to 5 feet. A chance of Thunderstorms until late afternoon.
Thursday night..East winds 15 to 20 knots becoming northeast 15 to 25 knots after midnight. Seas 3 to 5 feet. Showers likely and a slight chance of Thunderstorms.
Friday..North winds 20 to 30 knots. Seas 3 to 5 feet. Showers and Thunderstorms likely.
Friday night..North winds 15 to 25 knots. Seas 3 to 5 feet. A chance of showers and a slight chance of Thunderstorms.
Saturday..North winds 15 to 20 knots becoming northwest 10 to 15 knots in the afternoon. Seas 2 to 4 feet. A slight chance of showers and Thunderstorms in the morning.
Saturday night..North winds 5 to 10 knots. Seas 1 to 2 feet.
Sunday..North winds 5 to 10 knots becoming northeast in the afternoon. Seas 1 foot. A slight chance of showers and Thunderstorms in the morning.
Sunday night..East winds around 5 knots becoming northeast after midnight. Seas 1 to 2 feet.
GMZ300 Synopsis For High Island To The Matagorda Ship Channel Out 60 Nautical Miles Including Galveston And Matagorda Bays 346 Pm Cdt Tue Oct 22 2019
Synopsis for high island to matagorda ship channel out 60 nm.. Moderate northeast winds will gradually veer to the east tonight then east southeast on Wednesday. Small craft advisories may be required at times for elevated winds and seas offshore. Look for unsettled weather across the coastal waters Thursday night into Friday ahead of the next storm system and associated cold front. There is some uncertainty as to exactly when it will push off the coast, but should be sometime between early Friday morning or afternoon. Strong offshore winds can be expected in its wake through Saturday.


7 Day Forecast for Marine Location Near Jamaica Beach, TX
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location: 29.2, -94.99     debug


Area Discussion for - Houston/Galveston, TX
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Fxus64 khgx 222256
afdhgx
area forecast discussion
national weather service houston galveston tx
556 pm cdt Tue oct 22 2019

Aviation [00z TAF issuance]
Not justVFR, but skc through the forecast period. NE ene winds
from this afternoon will be settling down to light and variable
this evening, becoming southeasterly around 10 knots (closer to
15 at gls with winds directly from the gulf) around mid-day
tomorrow.

Prev discussion issued 343 pm cdt Tue oct 22 2019
Short term [through Wednesday]
Nice, tranquil wx should continue through Wednesday. Winds will
gradually veer to the east and southeast as surface high pressure
moves away from the area. 47

Long term [Wednesday night through Tuesday]
Surface high pressure over the south central CONUS is expected to
continue to push northeastward by Wednesday night, giving way to a
developing center of low pressure along the leeside of the rocky
mountains. Global models continue to disagree significantly
regarding the development of a surface cold front extending from
this feature as it moves into SE texas this weekend. Both the nam
and GFS solutions develop an upper trough over the central plains,
which propagates rapidly to the east by Saturday afternoon. Onshore
flow at the surface quickly turns to the north northeast as a
result, cutting off gulf moisture advection and keeping a weak
coastal low offshore. Conversely, the ECMWF and canadian solutions
produce a closed upper-level low which becomes cutoff over the tx
panhandle and pushes much more slowly eastward through the region.

This allows for the onshore movement of the aforementioned weak low,
which brings with it increased precipitation coverage and intensity
on Friday and Saturday. While the most recent ECMWF run has sped
things up a bit, confidence in the weekend forecast remains fairly
low considering the widespread differences across guidance sources.

Current leanings are towards the slower ECMWF canadian solutions,
but low confidence will remain until a stronger consensus has been
reached.

Surface high pressure and relatively benign weather conditions
look to reenter the picture by next week, with highs in the mid
70s and lows in the upper 50s to lower 60s expected through
Wednesday.

Cady

Marine
Moderate northeast winds will gradually veer to the east tonight
then east southeast on Wednesday. Will maintain current scec sca
configuration offshore tonight... Which may need to be extended
wed.

Increasing fetch of moderate E SE winds will drive tide levels
back up late night and persist into the remainder of the work week
until the next front pushes off the coast. Minor coastal flooding
is a possibility around each high tide cycle into Friday morning.

Building surf will also increase the risk of rip currents along
area beaches. Will be issuing a beach hazards statement for
tonight and Wed morning to incorporate both for now. However,
this may eventually need to be upgraded to a coastal flood
advisory later Wednesday and forward should the water levels
and coastal flood threat further increase.

Look for unsettled weather across the coastal waters Thursday
night into Friday ahead of the next storm system and associated
cold front. There is some uncertainty as to exactly when it will
push off the coast, but should be sometime between early Friday
morning or afternoon. Strong offshore winds can be expected in its
wake through Saturday. 47

Preliminary point temps pops
College station (cll) 52 83 59 79 53 0 0 0 30 70
houston (iah) 54 81 61 78 59 0 0 0 20 60
galveston (gls) 69 79 71 78 65 0 0 0 30 80

Hgx watches warnings advisories
Tx... None.

Gm... Small craft should exercise caution until 4 am cdt 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 4 am cdt 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.

Short term... 47
long term... Cady
aviation... Luchs
marine... 47


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
GRRT2 9 mi53 min ENE 12 G 15 74°F 74°F1019.5 hPa
LUIT2 11 mi47 min NE 11 G 15 74°F 74°F1020.7 hPa
GTOT2 13 mi53 min NE 7 G 9.9 74°F 75°F1019.8 hPa
42043 - GA-252 TABS B 16 mi125 min NNE 14 G 18 79°F1019.3 hPa (-0.8)
GNJT2 - 8771341 - Galveston Bay (North Jetty), TX 18 mi53 min NNE 13 G 15 74°F 74°F1018.8 hPa
EPTT2 - 8771013 - Eagle Point, TX 20 mi53 min NNE 9.9 G 13 74°F 74°F1019.4 hPa
FCGT2 - 8772447 - USCG Freeport, TX 24 mi47 min NE 8.9 G 12 74°F 75°F
FPST2 24 mi53 min N 16 G 17 74°F 76°F1019.4 hPa
KXIH 25 mi30 min NE 16 75°F 43°F
42035 - GALVESTON 22NM East of Galveston, TX 31 mi25 min NE 14 G 16 77°F 1020.8 hPa52°F
MGPT2 - 8770613 - Morgans Point, TX 33 mi53 min NE 8 G 9.9 74°F 76°F1020.1 hPa
RLOT2 - 8770971 - Rollover Pass, TX 33 mi47 min NE 8.9 G 11 74°F 73°F1020.1 hPa
NCHT2 - 8770777 - Manchester, TX 39 mi53 min NE 2.9 G 6 76°F 79°F1019.7 hPa
HIST2 42 mi53 min NE 4.1 G 5.1 73°F 74°F1019.7 hPa
SGNT2 45 mi47 min ENE 9.9 G 13 74°F 74°F1019.3 hPa

Wind History for Galveston Pleasure Pier, TX
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Galveston, Scholes Field, TX8 mi13 minNNE 910.00 miFair72°F48°F44%1020.2 hPa

Link to 5 minute data for KGLS

Wind History from GLS (wind in knots)
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Last 24hrNE7N7N12N12N12N16
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NE11NE13NE9NE10NE11NE7NE10NE11NE11N12N16N14N14N14NE9NE9
1 day agoS12S16S13S17S18S18S21S17S20
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N17N5N5N14N12N9N11N10N10NE7
2 days agoS8S7S7S8S11S10S6S8S6S6CalmCalmSE3SE3S6S8S9S11S11S12S16S14S10S13

Tide / Current Tables for Jamaica Beach, West Bay, Galveston Bay, Texas
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Tide / Current Tables for Bolivar Roads, Texas Current
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Bolivar Roads
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Tue -- 12:19 AM CDT     1.85 knots Max Flood
Tue -- 01:13 AM CDT     Moonrise
Tue -- 07:11 AM CDT     -0.00 knots Slack
Tue -- 07:25 AM CDT     Sunrise
Tue -- 03:16 PM CDT     Moonset
Tue -- 05:14 PM CDT     -1.76 knots Max Ebb
Tue -- 06:41 PM CDT     Sunset
Tue -- 09:49 PM CDT     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.81.81.61.30.90.60.40.1-0.2-0.5-0.6-0.7-0.8-1-1.2-1.4-1.7-1.8-1.7-1.5-1.1-0.60.10.9

Weather Map
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wmap_A
GEOS Local Image of SouthCentralPlains    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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Houston/Galveston, TX (20,4,5,8)
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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.