Thursday, May25, 2017 L-36.com


Marine Weather and Tides
Shoreacres, TX

Version 3.4
What's New / NOTES
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 6:20AMSunset 8:13PM Thursday May 25, 2017 12:03 AM CDT (05:03 UTC) Moonrise 5:26AMMoonset 7:13PM 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- 1014 Pm Cdt Wed May 24 2017
Rest of tonight..Southwest winds 5 to 10 knots becoming south 10 to 15 knots after midnight. Bay waters smooth becoming slightly choppy after midnight.
Thursday..South winds 15 to 20 knots. Bay waters choppy.
Thursday night..South winds 15 to 20 knots. Bay waters choppy.
Friday..South winds 15 to 20 knots. Bay waters choppy.
Friday night..South winds around 15 knots. Bay waters slightly choppy to choppy.
Saturday..South winds 10 to 15 knots. Bay waters slightly choppy.
Saturday night..South winds 10 to 15 knots. Bay waters slightly choppy.
Sunday..South winds 10 to 15 knots. Bay waters slightly choppy. A slight chance of showers and Thunderstorms.
Sunday night..South winds 5 to 10 knots. Bay waters smooth. A chance of showers and Thunderstorms.
Monday..Southeast winds 5 to 10 knots. Bay waters smooth. A chance of showers and Thunderstorms.
Monday night..Southeast winds 5 to 10 knots. Bay waters smooth. 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 1014 Pm Cdt Wed May 24 2017
Synopsis for high island to matagorda ship channel out 60 nm.. Onshore winds will return early Thursday and quickly strengthen during the day. Moderate onshore winds and slightly elevated seas can then be expected through the upcoming memorial day weekend.

7 Day Forecast for Marine Location Near Shoreacres, TX
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location: 29.64, -94.99     debug


Area Discussion for - Houston/Galveston, TX
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Fxus64 khgx 250135
afdhgx
area forecast discussion
national weather service houston galveston tx
835 pm cdt Wed may 24 2017

Update
Minor changes to the forecast this evening, which consisted of
mainly adjusting temperatures and dewpoints to reflect most recent
observations. Clear skies tonight will help to bring our low
temperatures down into the lower 70s along the coast, to low-mid
60s farther inland. Sunny skies will prevail for your Thursday,
with model guidance and forecast sounding analysis bringing high
temperatures back into the upper 80s and lower 90s across SE tx.

Moisture tomorrow will also begin to build back in, with
dewpoints in the mid-upper 60s by late afternoon, but do not
expect pops to return to the forecast until late this weekend.

Hathaway

Prev discussion issued 627 pm cdt Wed may 24 2017
aviation...

vfr conditions expected through Thursday afternoon. Winds may stay
up a bit, but expect light winds by around 02-03z time frame.

Winds should pick back up mid to late morning Thursday with breezy
conditions Thursday afternoon.

40
prev discussion... Issued 354 pm cdt Wed may 24 2017
discussion...

water vapor imagery nicely depicting the surge of drier air rushing
into the state in response to ridging filling the void of the
northeastern-exiting upper low moving up into the ohio river
valley. At the surface... High pressure centered over the lower rio
grande is creating a brisk northwest wind with overall subsidence
keeping skies mostly sunny and warming this afternoon's temperatures
into the lower 80s. This resident post-frontal drier air mass will
begin to moisten up by sunrise tomorrow as offshore flow transitions
to onshore. A near-zonal upper air pattern will maintain westerly
mid-level steering winds leading to a continued relatively dry
atmospheric column through early Friday... Then steering flow will
turn around to the south-southeast around a northern gulf mid-level
high. Status quo weather through the end of the week... No precipitation
forecast and the diurnal temperature curve will best-fit the climate
trace.

The gradual breakdown of upper ridging centered over the western
gulf through the weekend will equate to a partially cloudy Saturday
becoming mostly overcast by Sunday afternoon. After a couple of
late week warm and muggy days in the upper 80s to lower 90s mid
to upper 70 mornings upper troughing moving across the central
plains Sunday into memorial day will open the way for a series of
passing shortwave disturbances. A weak and (becoming diffuse)
surface boundary will sag into the area over the holiday and this
may provide the needed lower to mid level focus for periods of
inclement weather. Depending upon the passage of the aforementioned
shortwave disturbances troughs... A scenario similar to the one we
just experienced yesterday could unfold on (or around) memorial
day. Model soundings look ripe for thunderstorm development to
quickly evolve into strong or severe early next week. While the
shear improves through Wednesday... Memorial day's thermodynamics
are impressive (1.5k to 2.5k j kg cape... 6-8 deg c km 0-3 km
lapse rates leading to high lifted indices) with higher k indices
support more areal storm coverage. Overcast and a more active
convective pattern Monday through Wednesday will regulate
temperatures to slightly below normal values. 31
marine...

light north winds will become light southerly by sunrise. Onshore
winds will quickly strengthen during the day as the pressure gradient
tightens in response to developing low pressure in the lee of the
rockies. A moderate onshore flow will prevail through the weekend
with low pressure over west texas and high pressure over the
eastern gulf of mexico. A scec may be required at times through
the weekend. A weak cold front will approach SE tx Sunday night
and the gradient over the water will relax and winds will begin to
decrease on Monday. A lighter onshore flow is expected for the
first half of next week. 43

Preliminary point temps pops
College station (cll) 61 90 73 91 76 0 0 0 10 10
houston (iah) 62 90 74 89 77 0 0 0 10 10
galveston (gls) 71 85 78 86 80 0 0 0 10 10

Hgx watches warnings advisories
Tx... None.

Gm... None.

Update... 08


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MGPT2 - 8770613 - Morgans Point, TX 3 mi45 min ENE 4.1 G 5.1 73°F 78°F1008.2 hPa
LYBT2 10 mi45 min E 5.1 G 6 71°F 79°F1007.6 hPa
EPTT2 - 8771013 - Eagle Point, TX 12 mi45 min E 7 G 8 77°F 77°F1008.3 hPa
NCHT2 - 8770777 - Manchester, TX 16 mi45 min E 1.9 G 2.9 75°F 78°F1008.5 hPa
GRRT2 24 mi45 min E 5.1 G 7 76°F 78°F1008.2 hPa
GNJT2 - 8771341 - Galveston Bay (North Jetty), TX 24 mi51 min E 6 G 8 78°F1007.9 hPa
GTOT2 25 mi45 min 75°F 78°F
RLOT2 - 8770971 - Rollover Pass, TX 27 mi45 min E 4.1 G 5.1 71°F 71°F1008.4 hPa
HIST2 32 mi51 min E 1.9 G 2.9 70°F 78°F1008.6 hPa
LUIT2 40 mi45 min SW 2.9 G 4.1 76°F
KXIH 40 mi28 min E 8 77°F 57°F
42035 - GALVESTON 22NM East of Galveston, TX 42 mi73 min NNE 7.8 G 9.7 78°F 78°F1 ft1008.2 hPa (+1.2)57°F

Wind History for Morgans Point, TX
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Houston / Ellington, TX10 mi73 minS 310.00 miFair72°F48°F44%1008.8 hPa
Houston, Houston Hobby Airport, TX15 mi70 minSE 310.00 miFair67°F52°F59%1008.5 hPa
Houston, Pearland Regional Airport, TX16 mi70 minN 010.00 miFair68°F55°F65%1008.5 hPa
John Dunn Helistop, TX22 mi68 minE 410.00 miFair73°F44°F36%1007.4 hPa

Wind History from EFD (wind in knots)
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Last 24hrNW8NW7NW9NW7NW5W5W4W4W7W8W7W10NW14NW14--NW11
G20
NW10W11W10
G15
NW4NW3E3S3Calm
1 day agoNE5N7N7N4NW5N7N12N5NW9NW7NW5N6N5NW4CalmN5E5E3SE5E6SW8N10N7N11
2 days agoE6E10E11----S7S7SE8--SE9S11SE13SE10
G17
SE8SW8N5--N8N7N5N7N9N9N6

Tide / Current Tables for Barbours Cut, Morgans Point, Galveston Bay, Texas
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Barbours Cut
Click for Map
Thu -- 02:08 AM CDT     -0.07 feet Low Tide
Thu -- 06:22 AM CDT     Sunrise
Thu -- 06:25 AM CDT     Moonrise
Thu -- 11:03 AM CDT     1.73 feet High Tide
Thu -- 02:46 PM CDT     New Moon
Thu -- 08:12 PM CDT     Sunset
Thu -- 08:12 PM CDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.20-0.1-00.10.40.71.11.31.61.71.71.71.61.61.51.51.51.51.41.31.10.80.6

Tide / Current Tables for Bolivar Roads, Texas Current
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Bolivar Roads
Click for Map
Thu -- 01:26 AM CDT     0.00 knots Slack
Thu -- 04:52 AM CDT     2.67 knots Max Flood
Thu -- 06:21 AM CDT     Sunrise
Thu -- 06:25 AM CDT     Moonrise
Thu -- 10:01 AM CDT     -0.00 knots Slack
Thu -- 01:11 PM CDT     -0.67 knots Max Ebb
Thu -- 02:46 PM CDT     New Moon
Thu -- 04:11 PM CDT     -0.26 knots Min Ebb
Thu -- 08:10 PM CDT     Sunset
Thu -- 08:11 PM CDT     Moonset
Thu -- 09:54 PM CDT     -2.40 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-1.3-0.40.61.72.42.72.41.81.10.40-0.3-0.6-0.7-0.6-0.4-0.3-0.4-0.8-1.3-1.9-2.3-2.4-2.3

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 (1,6,7,8)
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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.