Monday, September16, 2019 L-36.com


Marine Weather and Tides
Richmond, TX

Version 3.4
NOTICE
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 7:06AMSunset 7:28PM Monday September 16, 2019 1:04 AM CDT (06:04 UTC) Moonrise 8:11PMMoonset 8:09AM Illumination 96% Phase: Waning Gibbous; Moon at 17 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 Expires:201909161530;;856311 Fzus54 Khgx 160305 Cwfhgx Coastal Waters Forecast National Weather Service Houston/galveston Tx 1005 Pm Cdt Sun Sep 15 2019 Upper Texas Coastal Waters From High Island To The Matagorda Ship Channel Out 60 Nautical Miles Including Galveston And Matagorda Bays Seas Are Provided As A Range Of The Average Height Of The Highest 1/3 Of The Waves...along With The Occasional Height Of The Average Highest 10 Percent Of The Waves. Gmz330-335-161530- Matagorda Bay-galveston Bay- 1005 Pm Cdt Sun Sep 15 2019
Rest of tonight..East winds 10 to 15 knots becoming northeast after midnight. Bay waters slightly choppy. A slight chance of showers and Thunderstorms early in the evening, then a chance of showers and Thunderstorms after midnight.
Monday..Northeast winds 10 to 15 knots becoming east 15 to 20 knots in the afternoon. Bay waters slightly choppy becoming choppy in the afternoon. A chance of showers and Thunderstorms in the morning, then showers and Thunderstorms in the afternoon.
Monday night..Southeast winds 10 to 15 knots. Bay waters slightly choppy. Showers and Thunderstorms likely early in the evening, then a chance of showers and Thunderstorms in the late evening and early morning. Showers and Thunderstorms likely late.
Tuesday..Southeast winds 5 to 10 knots. Bay waters smooth. Showers and Thunderstorms likely.
Tuesday night..Southeast winds 5 to 10 knots. Bay waters smooth. A chance of showers and Thunderstorms in the evening, then showers and Thunderstorms after midnight. Some Thunderstorms may produce heavy rainfall after midnight.
Wednesday..South winds 5 to 10 knots. Bay waters smooth. Showers and Thunderstorms. Some Thunderstorms may produce heavy rainfall.
Wednesday night..South winds 10 to 15 knots. Bay waters slightly choppy. A chance of showers and Thunderstorms in the evening, then showers and Thunderstorms likely after midnight.
Thursday..South winds 5 to 10 knots. Bay waters smooth. Showers and Thunderstorms likely in the morning, then a chance of showers and Thunderstorms in the afternoon.
Thursday night..Southeast winds 10 to 15 knots. Bay waters slightly choppy. A slight chance of showers and Thunderstorms.
Friday..Southeast winds 10 to 15 knots. Bay waters slightly choppy. A slight chance of showers and Thunderstorms.
Friday night..Southeast winds 10 to 15 knots. Bay waters slightly choppy. A slight chance of showers and Thunderstorms after midnight.
GMZ300 Synopsis For High Island To The Matagorda Ship Channel Out 60 Nautical Miles Including Galveston And Matagorda Bays 1005 Pm Cdt Sun Sep 15 2019
Synopsis for high island to matagorda ship channel out 60 nm.. Mainly moderate east to northeast winds can be expected through Monday. Caution flags might be needed. Periods of showers and Thunderstorms can be expected this week as a slow moving gulf system works its way westward and eventually moves across the texas coast and inland. Winds will become south to southeast beginning on Tuesday after the low moves inland.


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 160446
afdhgx
area forecast discussion
national weather service houston galveston tx
1146 pm cdt Sun sep 15 2019

Aviation
Expecting to see periods of shra tsra increasing over the next several
days with the approach of the slow moving gulf system. Hard to pinpoint
when best shot of activity will be for this TAF package (forecaster
confidence is low), but generally expect to see greatest concentration
and possible MVFR conditions near the coast during the late night and
morning hours, then spreading a little bit inland as the day progresses.

Ne to E winds during the day tomorrow with higher speeds near the coast.

42
prev discussion... Issued 356 pm cdt Sun sep 15 2019
short term [Monday through Tuesday]...

broad mid upper level low off the la tx coasts will continue its
very slow trek toward the coastal bend on tue. Look for shra tstms
to redevelop and expand in coverage offshore tonight... With some
bands gradually making their way to around, or slightly north, of
the i-10 corridor later Monday afternoon with daytime heating.

Precip should taper off Monday evening, then follow the same
pattern described above late Mon night & tue. Difference will be
higher areal coverage further inland during the day Tue as
available moisture increases. This should be much needed and
welcome rainfall. Few, if any problems are anticipated, though one
can never rule out the typical very localized street flooding
associated with higher rain rates. 47
long term [Tuesday night through Sunday]...

though there is high confidence that there will be good chances of
precip Tuesday night thru Thursday across the region, but overall
confidence in the specific details is low. Guidance shows the
mid upper low drifting to the north and into western parts of se
tx during this time period. Closer to the surface, models also
show either a surface trof or weak surface low developing - also
moving into the area from the south. How organized, or unorganized,
this feature becomes will go a long way in determining the
potential for either continued steady welcome rainfall, or the
risk of a more prolonged heavy rainfall event associated with
training convective banding (in the case of a more organized
system). There is generally a split between models in regards to
its evolution. Pw's do increase to 2.2-2.5" which are close to
the upper end that've been recorded this time of year, so moisture
won't be a problem. That being said, we will be closely watching
things, but for now there is somewhat concerning signal for a
potentially heavy rain and flash flood threat developing late tue
night and Wed for areas generally along and south of i-10 and
west of i-45. We'll see what future models have to say, but will
go ahead an start the mention of locally heavy rainfall wording
there for now.

Chances of precip will continue into Wednesday night & thurs with
the trof low and pw's AOA 2" continuing a slow move north thru the
area. Rain chances taper down Friday and into the weekend. 47
marine...

the large, broad cyclonic circulation brought on by a western-moving
north central gulf upper low will maintain a tight enough pressure
gradient on its northern periphery to produce moderate easterly
winds. These caution level east to southeasterly gulf winds will
generally be the dominant wind through late tomorrow. Periods of
showers and thunderstorm rotating in from the east will temporarily
create strong gusty winds and agitate seas. The low should move
onshore sometime late Tuesday into early Wednesday. More persistent
precipitation, possibly heavy, may occur across the local bay and
gulf waters from Tuesday on through mid week as lift along with the
northeasterly sector of this low taps into high moisture. 31
hydrology...

rivers and bayous are well within banks and should remain that way
through at least through the day Tuesday. The ground is dry and
should be able to handle a good bit of rainfall. This of course
will continue to be monitored as we head into the midweek time
period as there is considerable forecast uncertainty in regards to
the potential for some localized higher rainfall rates and
accumulations across portions of the region. 47
climate...

another day... Another record in galveston. Tied a 119 year old record
high of 94 previously set in 1900. 47

Preliminary point temps pops
College station (cll) 75 98 75 94 73 10 10 10 50 30
houston (iah) 75 94 75 90 76 20 30 30 50 50
galveston (gls) 81 90 79 86 80 50 60 70 70 80

Hgx watches warnings advisories
Tx... None.

Gm... Small craft should exercise caution through late Monday night
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... 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 mi52 min SSW 1.9 G 4.1 83°F 87°F1015 hPa
MGPT2 - 8770613 - Morgans Point, TX 41 mi52 min NE 2.9 G 2.9 82°F 87°F1015.3 hPa
EPTT2 - 8771013 - Eagle Point, TX 45 mi52 min ESE 8.9 G 11 87°F 87°F1014.5 hPa
LUIT2 48 mi46 min 86°F
GRRT2 49 mi52 min SE 6 G 8.9 83°F 86°F1014.7 hPa
FCGT2 - 8772447 - USCG Freeport, TX 50 mi52 min ENE 8 G 12 82°F 86°F1015.5 hPa

Wind History for Morgans Point, TX
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Houston, Sugar Land Municipal / Hull Field Airport, TX6 mi71 minN 010.00 miFair76°F73°F91%1015.3 hPa
Houston Southwest Airport, TX15 mi69 minN 07.00 miFair73°F73°F100%1015.9 hPa
Houston Executive Airport, TX17 mi69 minN 010.00 miFair79°F73°F84%1015.9 hPa
John Dunn Helistop, TX21 mi69 minN 010.00 miFair81°F66°F62%1015.6 hPa

Link to 5 minute data for KSGR

Wind History from SGR (wind in knots)
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Last 24hrCalmN3N3N3N4W3N3NE7NE9NE8E12SE9E8E11E12E7SE8SE10S9S6SE3CalmCalmCalm
1 day agoN4CalmCalmCalmN5N4N3N7NE7NE8NE9NE8NE11
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2 days agoN3NE3CalmCalmN4N4NE5NE6N95E5E6E8E9CalmSE8SE9SE10S5W3CalmCalmN3Calm

Tide / Current Tables for Houston Ship Channel, Galveston Bay, Manchester, 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 Clear Lake, Harris Co. Park, Texas
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Clear Lake
Click for Map
Mon -- 06:19 AM CDT     0.33 feet Low Tide
Mon -- 07:05 AM CDT     Sunrise
Mon -- 09:06 AM CDT     Moonset
Mon -- 12:24 PM CDT     0.76 feet High Tide
Mon -- 06:35 PM CDT     0.35 feet Low Tide
Mon -- 07:24 PM CDT     Sunset
Mon -- 09:08 PM CDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.80.80.70.50.40.40.30.30.40.50.60.70.80.80.70.60.50.40.40.40.40.50.60.7

Weather Map
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wmap_A
GEOS 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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
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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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.