Friday, April26, 2019 L-36.com


Marine Weather and Tides
Shoreacres, TX

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 6:40AMSunset 7:54PM Friday April 26, 2019 2:39 AM CDT (07:39 UTC) Moonrise 12:59AMMoonset 11:40AM Illumination 57% Phase: Waning Gibbous; Moon at 21 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 Galveston Bay- 1123 Pm Cdt Thu Apr 25 2019
Rest of tonight..North winds 5 to 10 knots. Bay waters smooth.
Friday..North winds 5 to 10 knots becoming northeast in the afternoon. Bay waters smooth.
Friday night..Southeast winds around 5 knots. Bay waters smooth.
Saturday..South winds 5 to 10 knots. Bay waters smooth.
Saturday night..South winds 5 to 10 knots. Bay waters smooth.
Sunday..Southeast winds 5 to 10 knots. Bay waters smooth.
Sunday night..Southeast winds 10 to 15 knots. Bay waters slightly choppy.
Monday..Southeast winds 10 to 15 knots. Bay waters slightly choppy.
Monday night..Southeast winds around 15 knots. Bay waters slightly choppy to choppy.
Tuesday..Southeast winds around 15 knots. Bay waters slightly choppy to choppy. A slight chance of showers and Thunderstorms.
Tuesday night..Southeast 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 1123 Pm Cdt Thu Apr 25 2019
Synopsis for high island to matagorda ship channel out 60 nm.. A northwest flow will weaken this evening as high pressure drifts across the state. A second cold front will move off the coast Friday morning briefly increasing winds before high pressure settles over the region. An onshore flow will resume by Saturday morning and persist through Thursday.


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 260446
afdhgx
area forecast discussion
national weather service houston galveston tx
1146 pm cdt Thu apr 25 2019

Aviation [06z TAF issuance]
Vfr throughout. A very weak reinforcing front will veer winds from
northwesterly to northeasterly. Winds will continue to veer
through the rest of the forecast period as high pressure moves
east, and onshore winds should return by Saturday morning.

Prev discussion issued 605 pm cdt Thu apr 25 2019
Discussion
A beautiful day across the region as southeast texas falls between
this morning's eastern-exiting front over the gulf and an
approaching southern plains (dry) frontal boundary. The mid to
upper trough axis is now to the east of the state opening up full
column northwest flow. Areawide temperatures have reached the
lower 80s with another hour or so of heating to allow a few
sites to possibly reach middle 80 f maximum temperatures.

Tomorrow's weak front will pass across through the morning
daytime hours and veer slightly stronger winds more north to
northeast through the afternoon. A drier reinforcement of post-
frontal air will ensure another sunny day with similar warmth;
likely lower to middle 80 f maximum temperatures. Tranquil
overnight conditions where minimum temperatures will parallel late
april standard mean lower 60s.

Tomorrrow's frontal passage may be the last of the season as upper
level ridging begins to build in from the south through early next
week. A zonal weekend flow pattern will transition to gulf ridging
by Tuesday. A closed off low over southern ca will eject northeast
as an open wave shortwave trough and weaken across the rockies
through Tuesday. The surface reflection of a western texas low
will develop an emanating northern texas mid-week boundary that
never seems to make it much south. Thus, with the mid level
boundary laying somewhere in the red river valley region, next
week's convection will focus across northern texas. Southeast
texas will be mildly capped with reachable afternoon low to mid 80
convective temperatures from Tuesday on out. The late period
pattern appears to be one of early day streamer showers focused
over the southern and western CWA then, with late am into early
afternoon heating, more central and northern CWA shower and
thunderstorm coverage each subsequent work week day. Humidity will
be on the rise and days will certainly become very "summer-like"
for us by this time next week. Much more humid mornings in the
lower 70s with more muggy afternoons in the 80s, possibly upper 80
maximum temperatures by mid week despite increased lower level
moisture more overcast. 31

Marine
Weak high pressure was located over north texas with light offshore
winds. A second cold front will move through the coastal waters early
Friday morning and this will help to reinforce the offshore flow. The
high will push east Friday night and onshore winds will return. Light
onshore winds will prevail Saturday as the high retreats. The pressure
gradient does start to tighten up Monday night and should see a steady
increase in seas as a persistent southeast fetch develops. 43

Preliminary point temps pops
College station (cll) 59 83 59 84 63 0 0 0 0 0
houston (iah) 62 85 61 84 64 0 0 0 0 0
galveston (gls) 68 80 68 80 69 0 0 0 0 0

Hgx watches warnings advisories
Tx... None.

Gm... None.

Discussion... 31
aviation... Luchs
marine... 43


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MGPT2 - 8770613 - Morgans Point, TX 3 mi45 min N 7 G 8 71°F 73°F1014.7 hPa
NCHT2 - 8770777 - Manchester, TX 16 mi45 min N 2.9 G 5.1 70°F 74°F1014.3 hPa
GNJT2 - 8771341 - Galveston Bay (North Jetty), TX 24 mi45 min N 8.9 G 9.9 75°F 74°F1014.2 hPa
GRRT2 24 mi45 min NNE 8 G 9.9 72°F 76°F1013.8 hPa
GTOT2 25 mi45 min N 5.1 G 7 72°F 74°F1014.4 hPa
RLOT2 - 8770971 - Rollover Pass, TX 27 mi45 min N 7 G 9.9 70°F 73°F1014.5 hPa
HIST2 32 mi45 min N 2.9 G 4.1 65°F 73°F1014 hPa
KXIH 40 mi24 min N 9.9 73°F 63°F
LUIT2 40 mi45 min N 8 G 9.9 74°F 77°F1014.8 hPa
42035 - GALVESTON 22NM East of Galveston, TX 42 mi39 min N 12 G 16 74°F 71°F1015.1 hPa (+0.0)67°F

Wind History for Morgans Point, TX
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Houston / Ellington, TX10 mi49 minN 010.00 miFair70°F57°F64%1014.9 hPa
Houston, Houston Hobby Airport, TX15 mi46 minN 510.00 miFair69°F57°F68%1015.3 hPa
Houston, Pearland Regional Airport, TX16 mi46 minN 010.00 miFair67°F61°F81%1015.3 hPa
John Dunn Helistop, TX22 mi44 minN 810.00 miFair72°F57°F61%1014.9 hPa

Wind History from EFD (wind in knots)
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Last 24hr--W7W9--NW4NW5NW11NW8W8NW8W8W9NW9W11NW9NW10NW11
G18
NW8NW5NW3N3CalmNW3Calm
1 day agoE7E4E5E4E5E6E7--E8E11E11SE13SE13SE16E12E11E11E7SE8SE8S4S5----
2 days agoSE7SE7SE7SE8SE8SE5SE10SE5SE9SE8SE10SE8SE11SE9S11SE11SE8E7SE7E9E9E6E3E5

Tide / Current Tables for Barbours Cut, Morgans Point, 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
Click for Map
Fri -- 01:57 AM CDT     Moonrise
Fri -- 03:13 AM CDT     -1.51 knots Max Ebb
Fri -- 06:41 AM CDT     Sunrise
Fri -- 07:54 AM CDT     0.00 knots Slack
Fri -- 12:14 PM CDT     1.58 knots Max Flood
Fri -- 12:39 PM CDT     Moonset
Fri -- 05:19 PM CDT     Last Quarter
Fri -- 06:16 PM CDT     -0.00 knots Slack
Fri -- 07:52 PM CDT     Sunset
Fri -- 11:23 PM CDT     -0.91 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-1.1-1.3-1.4-1.5-1.5-1.3-1-0.50.10.61.11.41.61.51.310.80.40.1-0.3-0.6-0.8-0.9-0.9

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.
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Wind Forecast for Houston/Galveston, TX (3,6,7,8)
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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.