Saturday, August24, 2019 L-36.com


Marine Weather and Tides
Seabrook, TX

Version 3.4
NOTICE
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 6:51AMSunset 7:53PM Saturday August 24, 2019 12:39 AM CDT (05:39 UTC) Moonrise 12:00AMMoonset 1:56PM Illumination 38% Phase: Third Quarter Moon; Moon at 23 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 Expires:201908241615;;114840 Fzus54 Khgx 240323 Cwfhgx Coastal Waters Forecast National Weather Service Houston/galveston Tx 1023 Pm Cdt Fri Aug 23 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. Gmz330-335-241615- Matagorda Bay-galveston Bay- 1023 Pm Cdt Fri Aug 23 2019
Rest of tonight..South winds 10 to 15 knots. Bay waters slightly choppy. A chance of showers in the late evening and early morning. Showers and Thunderstorms likely late.
Saturday..South winds 5 to 10 knots. Bay waters smooth. Showers and Thunderstorms likely.
Saturday night..South winds 5 to 10 knots. Bay waters smooth. A chance of showers and Thunderstorms.
Sunday..South winds 5 to 10 knots. Bay waters smooth. A chance of showers and Thunderstorms in the morning, then showers and Thunderstorms likely in the afternoon.
Sunday night..South winds 10 to 15 knots. Bay waters slightly choppy. A chance of showers and Thunderstorms.
Monday..South winds 10 to 15 knots. Bay waters slightly choppy. A chance of showers and Thunderstorms.
Monday night..South winds 10 to 15 knots. Bay waters slightly choppy. A slight chance of showers and Thunderstorms.
Tuesday..South winds 10 to 15 knots. Bay waters slightly choppy. A slight chance of showers and Thunderstorms.
Tuesday night..South winds 10 to 15 knots. Bay waters slightly choppy.
Wednesday..South winds 5 to 10 knots. Bay waters smooth. A chance of showers and Thunderstorms.
Wednesday night..South winds 10 to 15 knots. Bay waters slightly choppy. A slight chance of showers and Thunderstorms.
GMZ300 Synopsis For High Island To The Matagorda Ship Channel Out 60 Nautical Miles Including Galveston And Matagorda Bays 1023 Pm Cdt Fri Aug 23 2019
Synopsis for high island to matagorda ship channel out 60 nm.. Generally light to moderate onshore winds will prevail the next few days. Isolated showers and Thunderstorms will linger over night then expand in coverage tomorrow afternoon. Gusty and erratic winds may form near Thunderstorms that do develop. Shower activity decreases by the end of the weekend and into next week as high pressure builds into the region.


7 Day Forecast for Marine Location Near Seabrook, TX
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location: 29.61, -94.98     debug


Area Discussion for - Houston/Galveston, TX
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Fxus64 khgx 240451
afdhgx
area forecast discussion
national weather service houston galveston tx
1151 pm cdt Fri aug 23 2019

Aviation [06z TAF issuance]
Spotty showers have started to redevelop over the nearshore
waters, and will likely impact coastal sites during the overnight
hours. By 12z, precipitation is expected to push inland. Much like
what was seen on Friday, coverage of showers and storms at metro
terminals is expected to be relatively widespread. However,
included prob30 groups and vcts language at iah, hou, and sgr to
account for the intermittent nature of the expected activity. Have
only included vcts at northern terminals as confidence in how far
precipitation will push north of i-10 is not high at this time.

Model soundings suggest the potential for some brief fog and MVFR
cigs at northern sites, particularly at cxo, around 09-12z. Aside
from this, as well as any temporary visibility reductions
associated with thunderstorm activity, conditions are expected to
remain withinVFR thresholds. Winds will remain generally out of
the S SE at around 10kts along the coast and closer to 5-8 kts
inland.

Cady

Prev discussion issued 745 pm cdt Fri aug 23 2019
short term [tonight]...

high clouds cover the southern half of southeast texas and showers
and thunderstorms have dissipated over the area. Quick update to
lower rain chances through 4 am across the inland portions of the
area.

45
aviation [00z TAF issuance]...

skies areVFR with showers and thunderstorms ended. Gusty outflow
winds near cll weakening. Mid level circulation centered over the
gulf waters southeast of with a weakness extending back into the
galveston to conroe area. As the atmosphere recovers overnight
expect scattered showers to develop mainly after 09z over the gulf
and coastal areas expanding inland during the day. Vcsh 06z near
galveston transitioning to vcts by 10-12z. Confidence on how far
inland the storms get during the day is not very high so for now
will be carrying vcsh vcts for iah cxo uts cll.

45
prev discussion issued 354 pm cdt Fri aug 23 2019 ...

long term [Sunday through Thursday]...

a wet weather pattern will prevail on Sunday as moisture
continues to linger over southeast texas. Widespread areas of pws
of 1.9 to 2.5 inches is indicated by both the GFS and NAM Sunday
morning through Sunday night. The abundant moisture will be
sufficient to continue to trigger shower and thunderstorm
development throughout the day, with the strongest heaviest
activity remaining mainly over the gulf waters and southern half
of southeast texas. Depending on how much rainfall is received
Saturday, some areas could experience additional urban and minor
flooding.

Conditions will begin to improve next week as low level moisture
decreases and the mid level ridge gradually builds back into
western and central texas. A summertime pattern can be expected
with passing showers over the local waters and coastal counties
during the night and early morning hours, followed by isolated to
scattered showers and thunderstorms developing inland during the
late morning and afternoon hours. Light southerly wind flow will
prevail through the forecast period. High temperatures will
be in the low to mid 90s south of i-10 and in the mid to upper
90s, north of i-10... Possibly reaching 100 degrees f in the
northwestern quadrant. Low temperatures will range in the mid 70s
to low 80s each night. 24
marine...

light to moderate south to southeasterly flow will continue through
the weekend and into next week with generally higher winds during
the overnight periods. Shower and thunderstorms will temporary
dissipate tonight then redevelop tomorrow morning. These storms will
induce locally gusty winds and higher seas. High pressure returns on
Monday along with a continuation of the typical summer like pattern.

Fowler

Preliminary point temps pops
College station (cll) 97 76 96 77 98 40 10 40 20 30
houston (iah) 93 78 92 78 94 80 40 60 30 50
galveston (gls) 88 81 89 82 90 80 70 70 60 60

Hgx watches warnings advisories
Tx... None.

Gm... None.

Discussion... 99
aviation marine... 99


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MGPT2 - 8770613 - Morgans Point, TX 5 mi51 min SSE 11 G 14 82°F 87°F1012.3 hPa
EPTT2 - 8771013 - Eagle Point, TX 10 mi57 min SSE 12 G 14 83°F 85°F1011.5 hPa
NCHT2 - 8770777 - Manchester, TX 17 mi51 min S 1.9 G 4.1 81°F 87°F1012.1 hPa
GNJT2 - 8771341 - Galveston Bay (North Jetty), TX 22 mi57 min SSE 14 G 16 84°F 86°F1011.3 hPa
GRRT2 22 mi51 min S 8 G 11 82°F 86°F1011.7 hPa
GTOT2 23 mi51 min S 6 G 8.9 83°F 87°F1012 hPa
RLOT2 - 8770971 - Rollover Pass, TX 26 mi51 min S 9.9 G 14 82°F 87°F1012.4 hPa
HIST2 31 mi57 min SSE 5.1 G 7 81°F 86°F1011.9 hPa
KXIH 38 mi24 min SSE 12 82°F 73°F
LUIT2 38 mi51 min SSE 8 G 11 83°F 85°F1012.1 hPa
42035 - GALVESTON 22NM East of Galveston, TX 40 mi39 min S 14 G 18 84°F 1013.1 hPa (+0.4)80°F
42043 - GA-252 TABS B 44 mi99 min SE 12 G 14 87°F1011.9 hPa
FCGT2 - 8772447 - USCG Freeport, TX 49 mi57 min SSE 8.9 G 9.9 83°F 85°F1012.7 hPa
FPST2 49 mi51 min SE 8 G 9.9 83°F 86°F1011.9 hPa

Wind History for Morgans Point, TX
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Houston / Ellington, TX10 mi1.8 hrsESE 210.00 miMostly Cloudy81°F73°F79%1012.2 hPa
Houston, Pearland Regional Airport, TX15 mi3.8 hrsESE 310.00 miFair80°F75°F85%1012.3 hPa
Houston, Houston Hobby Airport, TX16 mi3.8 hrsSE 710.00 miMostly Cloudy81°F73°F79%1012.3 hPa
John Dunn Helistop, TX23 mi3.4 hrsN 010.00 miPartly Cloudy81°F75°F84%1012.2 hPa
Galveston, Scholes Field, TX24 mi3.8 hrsESE 710.00 miPartly Cloudy83°F75°F77%1012 hPa

Link to 5 minute data for KEFD

Wind History from EFD (wind in knots)
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Last 24hr----Calm--S4CalmCalmCalmCalmSW4SW5CalmS7E8SE5SE4E5--E5E5SE5E3--E2
1 day agoSE3------------CalmCalmCalmE4E5SE5SE4E6SE9SE10SE12SE11E9SE7SE7----
2 days ago--NE3------CalmS4Calm----SW5CalmS4S9
G15
S9S9SE10S10S10S8S8S5----

Tide / Current Tables for Clear Lake, Harris Co. Park, Texas (2)
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Clear Lake
Click for Map
Sat -- 12:56 AM CDT     Moonrise
Sat -- 06:53 AM CDT     Sunrise
Sat -- 08:15 AM CDT     0.88 feet High Tide
Sat -- 10:25 AM CDT     0.88 feet Low Tide
Sat -- 12:56 PM CDT     0.89 feet High Tide
Sat -- 02:56 PM CDT     Moonset
Sat -- 07:51 PM CDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.20.20.30.40.60.70.80.90.90.90.90.90.90.90.90.90.80.80.70.60.50.40.20.1

Tide / Current Tables for Bolivar Roads, Texas Current
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Bolivar Roads
Click for Map
Sat -- 12:55 AM CDT     Moonrise
Sat -- 06:52 AM CDT     Sunrise
Sat -- 07:22 AM CDT     -0.00 knots Slack
Sat -- 02:54 PM CDT     Moonset
Sat -- 04:31 PM CDT     -1.71 knots Max Ebb
Sat -- 07:50 PM CDT     Sunset
Sat -- 09:07 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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1.51.41.20.80.50.30.20.1-0.1-0.3-0.4-0.6-0.8-1.1-1.3-1.5-1.7-1.7-1.5-1.2-0.7-0.10.61.2

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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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Houston/Galveston, TX (1,6,7,8)
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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.