Tuesday, June19, 2018 L-36.com


Marine Weather and Tides
Richmond, 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 6:21AMSunset 8:27PM Tuesday June 19, 2018 8:59 PM CDT (01:59 UTC) Moonrise 11:41AMMoonset 12:00AM Illumination 41% Phase: Waxing Crescent; Moon at 7 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- 344 Pm Cdt Tue Jun 19 2018
Tonight..Southeast winds around 15 knots. Bay waters slightly choppy to choppy. Showers and isolated Thunderstorms. Some Thunderstorms may produce heavy rainfall. Winds higher and waters rough in and near storms.
Wednesday..Southeast winds 10 to 15 knots. Bay waters slightly choppy. Isolated Thunderstorms in the morning. Showers likely. Thunderstorms likely in the afternoon. Some Thunderstorms may produce heavy rainfall.
Wednesday night..Southeast winds 10 to 15 knots. Bay waters slightly choppy. A chance of showers and isolated Thunderstorms.
Thursday..South winds 5 to 10 knots. Bay waters smooth. A chance of showers and Thunderstorms.
Thursday night..South winds 5 to 10 knots. Bay waters smooth. A slight chance of showers and Thunderstorms.
Friday..Southwest winds 5 to 10 knots becoming south 10 to 15 knots in the afternoon. Bay waters smooth becoming slightly choppy in the afternoon. A slight chance of showers and Thunderstorms.
Friday night..South winds 10 to 15 knots. Bay waters slightly choppy.
Saturday..South winds 10 to 15 knots. Bay waters slightly choppy. A slight chance of showers and Thunderstorms.
Saturday night..South winds around 15 knots. Bay waters slightly choppy to choppy.
Sunday..South winds 10 to 15 knots. Bay waters slightly choppy. A slight chance of showers and Thunderstorms.
Sunday 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 344 Pm Cdt Tue Jun 19 2018
Synopsis for high island to matagorda ship channel out 60 nm.. Moderate onshore winds and elevated seas will persist for the next couple of days. Periods of showers and Thunderstorms will also continue into Wednesday, with heavy rainfall and gusty winds in the strongest storms.

7 Day Forecast for Marine Location Near Richmond, TX
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location: 29.58, -95.75     debug


Area Discussion for - Houston/Galveston, TX
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Fxus64 khgx 192333
afdhgx
area forecast discussion
national weather service houston galveston tx
633 pm cdt Tue jun 19 2018

Aviation
Still considerable uncertainty in forecast overnight, as large
area of showers and isold tstms continues to loom just upstream
off the upper tx coast. Will maintain continuity with 00z tafs in
prevailing MVFR area wide starting near or just after sunset, with
occasional ifr CIGS for kcll kuts later tonight. Overnight
conditions will largely be driven by the large area of moist
convection currently off the coast. Tomorrow will likely be more
of the same, with unsettled weather areawide along with likely
rain chances and scattered thunderstorms. Specifics of timing and
locations too uncertain, so opted to continue vcts with MVFR
conditions prevailing.

Evans

Prev discussion issued 411 pm cdt Tue jun 19 2018
discussion...

while the heaviest rains have remained east of the area (along and
near the tx la border)... We have seen a slight uptick in coverage
intensity of the rainfall over the west central portions of the fa
in the last couple of hours (via a small convergence boundary). At
this time... These have been the best most organized rains in SE tx
today. If trends of the last few days do come to pass for this eve-
ning, we should see improving conditions over most areas (save for
the coast) after sunset. As such, we'll likely let the flash flood
advisory expire at 7 pm as planned... Barring any last minute crazy
developments. The ffas will likely continue for locations east and
west of us tonight tomorrow (per NWS lch ewx crp offices).

Otherwise, hard pressed to drop pops significantly the next couple
of days given the lingering upper low over sc tx and the very deep
moisture (2.1" - 2.6" pws) coming in from the gulf. Cannot totally
rule out the possibility of rain bands setting up across SE tx, or
finally moving in from the east or west tomorrow (as most of these
models have been wont to do), but confidence remains low with this
happening given the previous trends with both the progs and actual
weather. These elevated pops should be tapering off by Friday when
the next upper trof digging into middle ms river valley helps push
the upper low over sc tx further south. Weak ridging aloft will be
nudging in from the west through the weekend, and this should tran-
slate into a more typical SE tx summer pattern of mainly afternoon
showers thunderstorms along the seabreeze. Also, warmer temps with
mostly sunny skies. Long-range guidance hinting that increased pop
chances may be in order by the start of next week as another surge
of deeper moisture moves in from the western gulf. 41
marine...

will maintain a small craft advisory beyond 20 nm offshore and
caution flags nearshore tonight. The gradient will begin to weaken
on Thursday and onshore winds will begin to relax Thursday night
into Friday night. Seas will be slower to diminish. Wind speeds are
expected to increase again this weekend as low pressure develops in
west texas.

Tides will likely remain 1.0 to 1.5 feet above astronomical levels
into Wednesday. Astronomical high tides are lower however, so think
the flood threat at highway 87 and 124 on the bolivar peninsula will
be confined to the high tide that occurs tomorrow morning right
around 11am. For this forecast package, have consolidated all
possible impacts into a beach hazard statement (surf, wave run up,
rip currents, elevated tides & minor coastal flooding). 47
hydrology...

impacts will be highly dependent on if where any band(s) of training
heavier rainfall set up. There is considerable uncertainty in
regards to this as model guidance has not been performing well as of
late. We'll continue to keep an eye on all the watersheds...

especially the tres palacios, san bernard and lavaca navidad. 47

Preliminary point temps pops
College station (cll) 73 86 74 90 75 40 60 40 40 20
houston (iah) 76 85 76 89 76 50 70 40 60 20
galveston (gls) 79 85 80 86 80 70 60 30 50 20

Hgx watches warnings advisories
Tx... Flash flood watch until 7 pm cdt this evening for the following
zones: brazoria islands... Chambers... Coastal brazoria...

coastal galveston... Coastal harris... Coastal jackson...

coastal matagorda... Fort bend... Galveston island and
bolivar peninsula... Inland brazoria... Inland galveston...

inland harris... Inland jackson... Inland matagorda...

matagorda islands... Southern liberty... Wharton.

Gm... Small craft should exercise caution until 4 am cdt Wednesday for
the following zones: coastal waters from freeport to
matagorda ship channel tx out 20 nm... Coastal waters from
high island to freeport tx out 20 nm.

Small craft advisory until 10 am cdt Wednesday for the following
zones: waters from freeport to matagorda ship channel tx
from 20 to 60 nm... Waters from high island to freeport tx
from 20 to 60 nm.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
NCHT2 - 8770777 - Manchester, TX 28 mi42 min SSE 8 G 12 80°F 85°F1010.4 hPa
MGPT2 - 8770613 - Morgans Point, TX 41 mi42 min ESE 9.9 G 14 79°F 83°F1011.5 hPa
EPTT2 - 8771013 - Eagle Point, TX 45 mi42 min ESE 13 G 15 79°F 82°F1011.6 hPa
LUIT2 48 mi42 min ESE 15 G 19 79°F 1010.9 hPa
GRRT2 49 mi42 min ESE 11 G 13 79°F 82°F1011.3 hPa
FCGT2 - 8772447 - USCG Freeport, TX 50 mi42 min E 12 G 18 79°F 84°F1011.2 hPa

Wind History for Morgans Point, TX
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SE12
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SE12
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G21

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Houston, Sugar Land Municipal / Hull Field Airport, TX6 mi67 minESE 810.00 miFair81°F73°F77%1011 hPa
Houston Southwest Airport, TX15 mi65 minESE 10 G 1510.00 miPartly Cloudy78°F72°F84%1011.2 hPa
Houston Executive Airport, TX17 mi65 minSE 910.00 mi79°F75°F89%1011.2 hPa
John Dunn Helistop, TX21 mi65 minN 010.00 miA Few Clouds79°F73°F84%1011.2 hPa

Wind History from SGR (wind in knots)
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Last 24hrSE12
G16
E9SE8E8E6E7E7E6SE9E5E6E9SE8SE12
G24
E5E7SE16E6E6E8SE7SE10SE8SE6
1 day agoE8E6E6SE5E3E4E4E6E3E5E6E12
G18
SE8E8E9SE11SE15
G19
SE7SE18
G23
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2 days agoSE8E6E8E5SE6E6E5E5E4E5CalmE4E4SE5NE8E7E3E5W4NE7E8SE7SE7E7

Tide / Current Tables for Houston Ship Channel, Galveston Bay, Manchester, Texas
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Houston Ship Channel
Click for Map
Tue -- 12:53 AM CDT     Moonset
Tue -- 06:20 AM CDT     Sunrise
Tue -- 08:47 AM CDT     0.22 feet Low Tide
Tue -- 12:39 PM CDT     Moonrise
Tue -- 04:36 PM CDT     1.64 feet High Tide
Tue -- 08:24 PM CDT     Sunset
Tue -- 11:07 PM CDT     1.00 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.21.21.21.10.90.70.50.40.30.20.30.50.811.31.51.61.61.61.51.31.211

Tide / Current Tables for Clear Lake, Harris Co. Park, Texas
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Clear Lake
Click for Map
Tue -- 12:52 AM CDT     Moonset
Tue -- 02:07 AM CDT     0.49 feet High Tide
Tue -- 06:20 AM CDT     Sunrise
Tue -- 09:42 AM CDT     -0.18 feet Low Tide
Tue -- 12:38 PM CDT     Moonrise
Tue -- 05:12 PM CDT     0.68 feet High Tide
Tue -- 08:22 PM CDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.40.50.50.50.40.30.10-0.1-0.2-0.2-0.1-00.20.30.50.60.70.70.60.50.40.40.3

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 (21,6,7,8)
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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.