Sunday, July23, 2017 L-36.com


Marine Weather and Tides
Morgan's Point, 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 6:33AMSunset 8:19PM Sunday July 23, 2017 1:54 AM CDT (06:54 UTC) Moonrise 5:48AMMoonset 7:40PM 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- 1002 Pm Cdt Sat Jul 22 2017
Rest of tonight..South winds 10 to 15 knots. Bay waters slightly choppy. A slight chance of showers and isolated Thunderstorms.
Sunday..South winds 10 to 15 knots. Bay waters slightly choppy. A chance of showers and Thunderstorms.
Sunday night..South winds 10 to 15 knots. Bay waters slightly choppy. A slight chance of showers and Thunderstorms in the evening.
Monday..South winds 10 to 15 knots. Bay waters slightly choppy.
Monday night..South winds 10 to 15 knots. Bay waters slightly choppy.
Tuesday..South winds 5 to 10 knots increasing to 10 to 15 knots in the afternoon. Bay waters smooth becoming slightly choppy in the afternoon. 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 slight chance of showers and Thunderstorms.
Wednesday night..South winds 5 to 10 knots. Bay waters smooth.
Thursday..South winds 5 to 10 knots increasing to 10 to 15 knots in the afternoon. Bay waters smooth becoming slightly choppy in the afternoon. A slight chance of showers and Thunderstorms.
Thursday night..South 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 1002 Pm Cdt Sat Jul 22 2017
Synopsis for high island to matagorda ship channel out 60 nm.. An upper level low will bring unsettled weather to the coastal waters again on Sunday. An increasing onshore flow can be expected tonight and persist on Sunday in response to a tightening pressure gradient. Winds should weaken by Tuesday as an area of high pressure develops over the central gulf by the middle of next week.

7 Day Forecast for Marine Location Near Morgan's Point, TX
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location: 29.66, -95.01     debug


Area Discussion for - Houston/Galveston, TX
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Fxus64 khgx 230440
afdhgx
area forecast discussion
national weather service houston galveston tx
1140 pm cdt Sat jul 22 2017

Aviation
An upper low over the western gulf will meander near the coast
into Sunday and some showers will be possible along the immediate
coast toward sunrise Sunday morning. Daytime heating will trigger
another round of afternoon storms... Impacting mainly the houston
terminals and kcxo and ksgr. Convective temps on Sunday are around
89 degrees and pw values will reach 2.15 inches by 21z with
soundings showing a weak capping inversion developing near 850 mb
but this looks breakable during peak heating. Shra tsra will
dissipate quickly Sunday evening with the loss of heating. A
fairly thick mid upper cloud deck will linger over the area Sunday
night. 43

Prev discussion issued 919 pm cdt Sat jul 22 2017
update...

earlier evening convection has dissipated, with northern portions
of harris county receiving anywhere from 1 to up to 3 inches.

Cannot rule out a few more isolated showers and maybe a
thunderstorm or two along the coastal counties and across the
coastal waters tonight as a mid to upper level weakness evident on
evening raobs meanders across the area, but have low confidence
on how far inland this activity will actually push given
increasingly southwest low level flow in response to surface
ridging over the northern gulf. As a result, have lowered rain
chances inland for night while maintaining 20 pops along the coast
and for the waters. Otherwise, made minor updates for hourly
trends with overnight lows in the mid 70s to low 80s.

Huffman
prev discussion... Issued 351 pm cdt Sat jul 22 2017
discussion...

precipitation not quite as widespread across SE tx this afternoon
likely owing to the extensive clouds and persistent storms
offshore (limiting stability and preventing decent inflow
respectively). While temperatures have been a touch lower than
yesterday, the higher dewpoints are keeping heat index values
elevated (100-106f) so far today.

With the upper low lingering around the coast between gls and lch
through tomorrow am a bit hesitant to lower pops too much... Especially
for our eastern and coastal counties. Progged pws from 2.0 to 2.2
inches do appear supportive of some decent rains tomorrow.

However... Do agree that the main issue with the upcoming forecast
could be the rising heat heat indicies for next week. As this low
washes out, we should see the upper ridge out west begin building
east into the central southern plains. Rain chances will decrease
starting Monday save for some isolated development at or along
the seabreeze. Daytime highs are progged to be in the upper
90s to around 100 for central northern parts of our cwa, and with
dewpoints remaining in the 70s, this could translate to heat
index values at or near our heat advisory criteria of 108
degrees. 41
marine...

the upper level low pressure system is continuing to fill into the
region and aid in the development of showers and thunderstorms this
afternoon. Although coverage this afternoon has diminished in
comparison to this mornings convection, lingering showers and an
isolated thunderstorm or two can be expected over the waters through
the remainder of this evening. Gusty winds can also be anticipated
with these stronger storms. Onshore flow overnight will begin to
increase in wind speed as the pressure gradient tightens over SE tx
Sunday into Monday. Winds should increase to between 10-15 knots
tonight and hold through Sunday. Sunday night into Monday winds
again will pick up in speed and stay closer to 15 knots before
diminishing late morning on Monday. Therefore, we will be flirting
with scec criteria while this tighter pressure gradient holds place.

Seas will also pick up during this time from 2 feet to 2-4 feet. By
Tuesday an area of high pressure begins to build in resulting in a
lowering in wave height and weaker onshore flow. Conditions will
also be drier through next Friday.

Hathaway

Preliminary point temps pops
College station (cll) 77 95 77 98 76 10 30 20 10 10
houston (iah) 79 91 80 96 78 10 50 30 20 10
galveston (gls) 82 88 84 91 82 20 50 20 20 10

Hgx watches warnings advisories
Tx... None.

Gm... None.

Discussion... 14
aviation marine... 43


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MGPT2 - 8770613 - Morgans Point, TX 2 mi55 min S 7 G 8.9 84°F 88°F1014.1 hPa (+0.5)
LYBT2 8 mi55 min SSW 8 G 9.9 82°F 88°F1014.1 hPa (+0.4)
EPTT2 - 8771013 - Eagle Point, TX 13 mi55 min SSW 14 G 17 85°F 89°F1014.3 hPa (+0.5)
NCHT2 - 8770777 - Manchester, TX 14 mi55 min SSW 5.1 G 7 82°F 85°F1013.3 hPa (+0.6)
GRRT2 25 mi55 min SSE 11 G 13 85°F 88°F1014.4 hPa (+0.6)
GNJT2 - 8771341 - Galveston Bay (North Jetty), TX 26 mi55 min S 15 G 17 88°F1013.9 hPa (+0.6)
GTOT2 27 mi55 min 86°F
RLOT2 - 8770971 - Rollover Pass, TX 28 mi55 min SSW 8.9 G 15 85°F 86°F1014.2 hPa (+0.0)
HIST2 33 mi55 min SSW 8 G 12 83°F 87°F1014.4 hPa (+0.0)
LUIT2 41 mi55 min SW 8.9 G 13 85°F 88°F
KXIH 42 mi40 min SSW 13 G 19 86°F 75°F
42035 - GALVESTON 22NM East of Galveston, TX 43 mi65 min S 16 G 18 85°F 87°F3 ft1014.3 hPa (+0.5)78°F

Wind History for Morgans Point, TX
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Houston / Ellington, TX9 mi2.1 hrsSSE 410.00 miMostly Cloudy81°F75°F84%1014.9 hPa
Houston, Houston Hobby Airport, TX14 mi62 minS 610.00 miPartly Cloudy83°F75°F77%1014.2 hPa
Houston, Pearland Regional Airport, TX16 mi62 minS 410.00 miFair83°F75°F77%1014.5 hPa
John Dunn Helistop, TX21 mi60 minS 510.00 miFair81°F75°F84%1013.2 hPa

Wind History from EFD (wind in knots)
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Last 24hrCalmCalmCalmCalmCalmCalmCalmSW4S5S7S3S10S8S8S7S9S13----------S4S5
1 day agoCalmCalmCalmCalmCalmCalmCalmW5W4W3CalmCalmE4--E8S14SE7S9S7S5S3SE3CalmCalm
2 days agoCalm--Calm--CalmCalmNE1W4W5--W4SW5CalmCalmE8SE5S11S9S6S6S4S3CalmCalm

Tide / Current Tables for Barbours Cut, Morgans Point, Galveston Bay, Texas
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Barbours Cut
Click for Map
Sun -- 02:41 AM CDT     -0.51 feet Low Tide
Sun -- 04:47 AM CDT     New Moon
Sun -- 06:34 AM CDT     Sunrise
Sun -- 06:48 AM CDT     Moonrise
Sun -- 12:25 PM CDT     1.46 feet High Tide
Sun -- 08:18 PM CDT     Sunset
Sun -- 08:39 PM CDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.1-0.3-0.5-0.5-0.4-0.20.10.40.81.11.31.41.51.51.41.41.31.31.31.21.110.80.5

Tide / Current Tables for Clear Lake, Harris Co. Park, Texas
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Clear Lake
Click for Map
Sun -- 04:47 AM CDT     New Moon
Sun -- 04:48 AM CDT     -0.60 feet Low Tide
Sun -- 06:34 AM CDT     Sunrise
Sun -- 06:48 AM CDT     Moonrise
Sun -- 12:54 PM CDT     0.78 feet High Tide
Sun -- 06:05 PM CDT     0.57 feet Low Tide
Sun -- 08:18 PM CDT     Sunset
Sun -- 08:39 PM CDT     Moonset
Sun -- 09:36 PM CDT     0.69 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.3-0-0.2-0.4-0.6-0.6-0.5-0.3-0.10.20.50.70.80.80.80.70.60.60.60.60.60.70.70.6

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 (2,6,7,8)
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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.