Friday, May25, 2018 L-36.com


Marine Weather and Tides
Shoreacres, TX

Version 3.4
What's New / NOTES
5/20/2018 -- NOAA is having problems with the data feed that I use to draw the graphs. They are aware of the issue and working to resolve it. Sometimes changing the location by about a mile will give a correct graph. 3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.

Sunrise 6:20AMSunset 8:13PM Friday May 25, 2018 1:46 PM CDT (18:46 UTC) Moonrise 3:42PMMoonset 3:05AM Illumination 83% Phase: Waxing Gibbous; Moon at 11 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- 1048 Am Cdt Fri May 25 2018
Rest of today..Southeast winds 5 to 10 knots. Bay waters smooth. Scattered showers and Thunderstorms in the late morning and early afternoon. Isolated showers and Thunderstorms late in the afternoon.
Tonight..South winds around 10 knots becoming 5 to 10 knots after midnight. Bay waters smooth to slightly choppy becoming smooth after midnight.
Saturday..Southwest winds 5 to 10 knots becoming south in the afternoon. Bay waters smooth. A slight chance of showers and Thunderstorms.
Saturday night..South winds 5 to 10 knots becoming southwest after midnight. Bay waters smooth.
Sunday..West winds 5 to 10 knots becoming southeast in the afternoon. Bay waters smooth. A slight chance of showers and Thunderstorms.
Sunday night..Southwest winds 5 to 10 knots becoming west after midnight. Bay waters smooth.
Monday..Northwest winds 5 to 10 knots becoming west in the afternoon. Bay waters smooth.
Monday night..Southwest winds 5 to 10 knots becoming west after midnight. Bay waters smooth.
Tuesday..West winds 5 to 10 knots becoming southwest 10 to 15 knots in the afternoon. Bay waters smooth becoming slightly choppy in the afternoon.
Tuesday night..Southwest 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 1048 Am Cdt Fri May 25 2018
Synopsis for high island to matagorda ship channel out 60 nm.. Scattered showers and Thunderstorms will be possible this afternoon and again on Saturday. Light to occasionally moderate southerly to southwesterly winds along with low seas of 3 feet or less will continue through the weekend. Southwest to west winds of similar strength or slightly stronger, and little to no rain coverage are expected for the start of next week.

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 251711
afdhgx
area forecast discussion
national weather service houston galveston tx
1211 pm cdt Fri may 25 2018

Aviation
Scattered showers and thunderstorms will be possible kiah
southward this afternoon and will maintain a vcts for the southern
taf sites through 23-00z. Skies should clear this evening withVFR
conditions through 09z. Patchy fog will be possible at kcll, ksgr,
kcxo and klbx as t TD narrow and winds remain light. Leaned a bit
toward persistence. A brief window of MVFR CIGS will be possible
early Saturday before drier air aloft mixes toward the surface.

Fcst soundings look considerably drier on Saturday so will not
mention a vcsh at this time but there could be some shra tsra
after 18z. 43

Prev discussion issued 926 am cdt Fri may 25 2018
discussion...

morning radar has showers and thunderstorms confined mainly
in around galveston bay and the coastal waters. With daytime
heating, expect activity to increase and gradually work its
way further inland as the day progresses. Still anticipating
less coverage than what the area has seen over the past
several days.

Main weather story over the weekend and into the start of next
week will be our area's increasing temperatures and the progress
of subtropical storm alberto (the national hurricane center will
initiate the first advisory at 10 am cdt). 42
prev discussion issued 403 am cdt Fri may 25 2018 ...

short term [today through Sunday]...

the khgx radar shows a few showers across the near shore waters
of the gulf of mexico and galveston bay. GOES precipitable water
imagery shows higher moisture in this area with pw around 1.7
inches. Upper level analysis shows upper level ridge over central
mexico with NW flow aloft over texas with a weak trough over the
central gulf of mexico. Overall there should not be any large
scale subsidence to limit shower and thunderstorm activity for
today but there will still need to be enough heating for
convective initiation. With precipitable water values down a bit
from the the last couple of days, the expectation is for there to
be less coverage of showers and storms that the previous days. Hi-
res mesoscale models generally agree with this idea having
scattered activity limited to the higher moisture which looks to
be mainly along the coast. Areas north and west of houston will
generally be dry today with sea breeze forcing convection down
along the coast. Main timing for convection today will be from
around 16z to about 22z mainly along the coast. As has been the
case the last couple of days, storms will produce brief heavy
rainfall and gusty winds. A storm or two could pulse up to
strong severe levels briefly with small hail possible.

After today, rain chances really diminish mainly for a couple of
reasons. First higher moisture is expected to move east of the
region with pw values dropping closer to 1.5 inches on Saturday
and then likely below that Sunday into Monday. Second upper level
ridging increases over texas with an upper low forming upstream
from the ridge over the great basin and a trough forming over the
gulf of mexico downstream. This pattern then favors low rain
chances due to the subsidence and higher temperatures with mid 90s
possible for high temperatures by Sunday.

Long term [Sunday night through Friday]...

memorial day through the end of the week to end the school year
really looks hot due to the upper level ridge establishing itself
over texas. High temperatures look to reach the mid upper 90s
each day with low temperatures in the 70s. Ridge will be
suppressing any convection so no rain chances expected. The main
message this weekend and next week will be heat safety and beach
safety.

Overpeck
marine...

for the next day or two, scattered showers and isolated
thunderstorms are possible, with the best chances coming in the
late night and early morning hours. Otherwise, look for light and
variable - but mostly southerly - winds during the days and light
to moderate winds out of the south or southwest overnight. Seas
are generally expected to stay to stay low in the nearby waters
through at least the weekend.

Those with interests in the central and eastern gulf of mexico
should be continuing to monitor forecasts from the national
hurricane center and local NWS offices regarding potential storm
formation there. Locally, no direct impacts are anticipated
regardless of whether a storm forms or not. If it does occur, it
is possible some higher seas could move into the area next week.

Luchs
tropical...

as of midnight, NHC is giving a high chance of tropical cyclone
development over the next 2 days in the eastern and central gulf
of mexico with the disturbance off the east coast of the yucatan
peninsula. Synoptic models show some type of broad trough over the
gulf for the weekend which could support the development of a
hybrid tropical system. There will be some shear to hinder
development at times, but it very well could become a warm core
system with time as it moves north. The main idea is that there
could be some slow tropical development over the next few days in
the eastern gulf. The system should not directly impact SE texas.

If anything, there may be some higher swells that eventually make
it to the coast early next week. If you have memorial day holiday
plans that include visiting the ms al fl gulf coast beaches, you
may want to consider alternate plans.

Overpeck

Preliminary point temps pops
College station (cll) 92 72 93 72 95 10 10 10 0 0
houston (iah) 91 73 93 73 94 30 10 20 0 20
galveston (gls) 87 78 89 78 91 40 10 20 0 10

Hgx watches warnings advisories
Tx... None.

Gm... None.

Discussion... 42
aviation marine... 43


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MGPT2 - 8770613 - Morgans Point, TX 3 mi77 min SSE 6 G 8 83°F 83°F1014.9 hPa
EPTT2 - 8771013 - Eagle Point, TX 12 mi77 min SE 6 G 8 82°F 86°F1015 hPa
NCHT2 - 8770777 - Manchester, TX 16 mi77 min N 1.9 G 6 87°F 81°F1014 hPa
GRRT2 24 mi77 min S 6 G 8 82°F 83°F1014.6 hPa
GNJT2 - 8771341 - Galveston Bay (North Jetty), TX 24 mi77 min SE 6 G 7 81°F 83°F1014.7 hPa
GTOT2 25 mi77 min SSE 2.9 G 7 84°F 85°F1014.9 hPa
RLOT2 - 8770971 - Rollover Pass, TX 27 mi77 min S 5.1 G 8 81°F 84°F1015.4 hPa
HIST2 32 mi77 min SSE 4.1 G 8.9 85°F 85°F1015.3 hPa
LUIT2 40 mi77 min SSE 8 G 9.9 83°F 1014.9 hPa
KXIH 40 mi72 min SE 11 82°F 73°F
42043 - GA-252 TABS B 46 mi197 min 3.9 G 3.9 80°F 81°F1015.3 hPa

Wind History for Morgans Point, TX
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Houston / Ellington, TX10 mi57 minNE 610.00 miPartly Cloudy88°F73°F62%1015.2 hPa
Houston, Houston Hobby Airport, TX15 mi54 minW 610.00 miPartly Cloudy87°F72°F61%1014.5 hPa
Houston, Pearland Regional Airport, TX16 mi54 minWSW 310.00 miPartly Cloudy88°F71°F57%1014.5 hPa

Wind History from EFD (wind in knots)
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Last 24hrE11E12E10SE10--SE8E5SE4E3CalmCalmCalmCalmCalmCalmCalmCalmCalm--CalmSW3S3E6NE6
1 day agoCalmSE4E6E6E7E8SE4E3CalmCalmCalmCalm--Calm--CalmNE5NE3E3E5E5E6E10SE6
2 days agoE8E8E6SE7SE8SE7S4--SE3CalmS2E1Calm--CalmCalmCalmCalmCalmE2SE10E4CalmE7

Tide / Current Tables for Barbours Cut, Morgans Point, Galveston Bay, Texas
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Barbours Cut
Click for Map
Fri -- 12:58 AM CDT     0.62 feet Low Tide
Fri -- 04:05 AM CDT     Moonset
Fri -- 06:22 AM CDT     Sunrise
Fri -- 07:28 AM CDT     1.23 feet High Tide
Fri -- 12:36 PM CDT     0.93 feet Low Tide
Fri -- 04:41 PM CDT     Moonrise
Fri -- 06:09 PM CDT     1.31 feet High Tide
Fri -- 08:11 PM CDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.70.60.70.80.911.21.21.21.21.110.90.911.11.21.31.31.31.210.80.6

Tide / Current Tables for Bolivar Roads, Texas Current
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Bolivar Roads
Click for Map
Fri -- 12:33 AM CDT     0.00 knots Slack
Fri -- 03:04 AM CDT     0.79 knots Max Flood
Fri -- 04:04 AM CDT     Moonset
Fri -- 06:20 AM CDT     -0.00 knots Slack
Fri -- 06:22 AM CDT     Sunrise
Fri -- 09:43 AM CDT     -0.63 knots Max Ebb
Fri -- 12:07 PM CDT     0.00 knots Slack
Fri -- 02:26 PM CDT     0.66 knots Max Flood
Fri -- 04:40 PM CDT     Moonrise
Fri -- 04:43 PM CDT     -0.00 knots Slack
Fri -- 08:10 PM CDT     Sunset
Fri -- 09:26 PM CDT     -1.44 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.30.20.60.80.70.40.1-0.2-0.4-0.6-0.6-0.4-0.10.40.60.60.3-0.1-0.6-1-1.3-1.4-1.4-1.2

Weather Map and Satellite Images
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wmap_A
GOES 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.
target = "new">Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Houston/Galveston, TX (14,3,4,5)
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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.