Monday, August19, 2019 L-36.com


Marine Weather and Tides
Galveston, TX

Version 3.4
NOTICE
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 6:48AMSunset 7:57PM Monday August 19, 2019 10:15 PM CDT (03:15 UTC) Moonrise 9:33PMMoonset 9:15AM Illumination 80% Phase: Waning Gibbous; Moon at 19 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
    EDIT      (on/off)   Help
GMZ375 Expires:201908200915;;482183 Fzus54 Khgx 192027 Cwfhgx Coastal Waters Forecast National Weather Service Houston/galveston Tx 327 Pm Cdt Mon Aug 19 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. Gmz355-375-200915- Coastal Waters From High Island To Freeport Tx Out 20 Nm- Waters From High Island To Freeport Tx From 20 To 60 Nm- 327 Pm Cdt Mon Aug 19 2019
Tonight..South winds 10 to 15 knots. Seas 3 to 4 feet. A chance of showers and Thunderstorms.
Tuesday..Northwest winds 10 to 15 knots becoming southeast 5 to 10 knots in the afternoon. Seas 2 to 3 feet. Showers likely and a chance of Thunderstorms.
Tuesday night..South winds 5 to 10 knots. Seas 2 to 3 feet. A slight chance of showers after midnight.
Wednesday..Southeast winds 5 to 10 knots. Seas 2 to 3 feet. A chance of showers in the morning. A slight chance of showers and Thunderstorms.
Wednesday night..Southeast winds 10 to 15 knots. Seas 2 to 3 feet. A slight chance of showers after midnight.
Thursday..Southeast winds 5 to 10 knots. Seas 2 to 3 feet. A chance of showers and Thunderstorms.
Thursday night..South winds 10 to 15 knots. Seas 2 to 3 feet. A chance of showers and Thunderstorms.
Friday..South winds around 10 knots. Seas 2 to 3 feet. A chance of Thunderstorms in the morning. A chance of showers and Thunderstorms.
Friday night..South winds 10 to 15 knots. Seas 2 to 3 feet. A chance of showers. A slight chance of Thunderstorms after midnight.
Saturday..South winds around 10 knots. Seas 2 to 3 feet. A chance of Thunderstorms in the morning. A chance of showers. A slight chance of Thunderstorms in the afternoon.
Saturday night..South winds around 10 knots. Seas 2 to 3 feet. A chance of showers.
GMZ300 Synopsis For High Island To The Matagorda Ship Channel Out 60 Nautical Miles Including Galveston And Matagorda Bays 327 Pm Cdt Mon Aug 19 2019
Synopsis for high island to matagorda ship channel out 60 nm.. Moderate onshore flow subsides later tonight as high pressure builds into the region, resulting in lighter winds and lower seas over the next several days. With this typical summertime onshore flow pattern, the development of diurnally driven showers and Thunderstorms along with some brief gusty winds is possible in the morning hours although no major impacts are anticipated.


7 Day Forecast for Marine Location Near Galveston, TX
   Hourly   EDIT   Help
location: 28.84, -94.35     debug


Area Discussion for - Houston/Galveston, TX
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus64 khgx 200227
afdhgx
area forecast discussion
national weather service houston galveston tx
927 pm cdt Mon aug 19 2019

Discussion
Seeing the typical lull in precip activity this evening, but am
expecting some isolated precip to start developing again in the
next 2-5 hours offshore. Hires guidance is showing increasing
coverage of shra tstms near the galveston bay area and offshore as
we head into sunrise and the morning hours compliments of pooling
2.2-2.4" pw's and some llvl speed & directional convergence.

Precip should expand inland W heating and there will probably be
some residual boundaries from today's cells and possibly some
moving in from louisiana laying around to initially focus upon.

Incorporated some of this thinking into the evening update, but
overall little noticeable changes were made. 47

Prev discussion issued 640 pm cdt Mon aug 19 2019
aviation...

scattered showers and thunderstorms will end within the next hou
or so with skies clearing andVFR conditions expected for most of
the night. Pw values recharge by morning and reach 2.00 inches by
12z and peak around 18z between 2.10 and 2.20 inches. Convective
temperatures are between 90-92 degrees so another active day is
expected with shra tsra redeveloping near the coast by morning and
spreading inland with heating. Added a prob30 for kiah for the
afternoon. Leaned toward a blend of the arw GFS and tt WRF for
precip chances on Tuesday. 43

Preliminary point temps pops
College station (cll) 78 99 76 98 76 20 20 0 10 0
houston (iah) 77 95 78 95 78 20 50 0 20 10
galveston (gls) 83 92 83 92 83 40 60 10 30 20

Hgx watches warnings advisories
Tx... High rip current risk through Tuesday morning for the following
zones: brazoria islands... Galveston island and bolivar
peninsula... Matagorda islands.

Gm... None.



Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
KXIH 25 mi21 min SSE 8 86°F 77°F
42035 - GALVESTON 22NM East of Galveston, TX 27 mi26 min SSE 7.8 G 12 88°F 3 ft1016.8 hPa81°F
GTOT2 40 mi46 min S 5.1 G 9.9 1015.2 hPa
GNJT2 - 8771341 - Galveston Bay (North Jetty), TX 41 mi52 min S 11 G 13 87°F 89°F1014.2 hPa
GRRT2 43 mi52 min SSW 7 G 8.9 86°F 90°F1014.7 hPa
LUIT2 44 mi46 min SSE 5.1 G 8.9 86°F 87°F1015.3 hPa
RLOT2 - 8770971 - Rollover Pass, TX 47 mi46 min S 5.1 G 7 86°F 91°F1015.9 hPa

Wind History for Galveston Pleasure Pier, TX
(wind in knots)    EDIT      (on/off)   Help
Last
24hr
1 day
ago
2 days
ago

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
High Island 179A (Apache Corp), LA25 mi81 minS 89.00 miFair86°F75°F70%1015.2 hPa

Link to 5 minute data for KXIH

Wind History from XIH (wind in knots)
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
Last 24hrS9
G15
S13S13
G19
S9
G15
S14SW20SW14SW11S11S9S10SW11S10SW10SW10SW11SW10SW9SW9S11SW9S9S9S10
1 day agoS10
G18
S14S12
G18
S10
G18
S14
G20
S11
G18
S12
G19
S12
G19
S14
G19
S15
G20
S15S14
G19
S14S12
G20
SW12S13S15S15S12S11S9
G16
S7
G14
S10S13
2 days agoS10S9
G15
S12S12S14S12
G17
S12
G17
S14SW11
G23
SW14SW13SW14S6S9SW7SW10SW10SW11SW11
G16
S13S12S10
G16
S11
G16
S10
G18

Tide / Current Tables for Galveston (Pleasure Pier), Texas (2)
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Galveston (Pleasure Pier)
Click for Map
Mon -- 06:44 AM CDT     1.92 feet High Tide
Mon -- 06:49 AM CDT     Sunrise
Mon -- 10:16 AM CDT     Moonset
Mon -- 12:18 PM CDT     1.18 feet Low Tide
Mon -- 06:18 PM CDT     1.71 feet High Tide
Mon -- 07:55 PM CDT     Sunset
Mon -- 10:34 PM CDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
0.70.811.21.51.71.91.91.81.61.41.31.21.21.31.41.51.61.71.71.61.41.21

Tide / Current Tables for Galveston Bay entrance, south jetty, Texas
   EDIT      (on/off)   Help   One Week of Data
Galveston Bay entrance
Click for Map
Mon -- 06:49 AM CDT     Sunrise
Mon -- 07:12 AM CDT     1.83 feet High Tide
Mon -- 10:16 AM CDT     Moonset
Mon -- 12:19 PM CDT     1.13 feet Low Tide
Mon -- 06:45 PM CDT     1.63 feet High Tide
Mon -- 07:55 PM CDT     Sunset
Mon -- 10:33 PM CDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
0.60.70.91.11.41.61.81.81.81.61.41.21.11.11.21.31.41.51.61.61.51.41.11

Weather Map and Satellite Images
       (on/off)   HelpWeather Map
wmap_A
GOES Local Image of    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 (23,6,7,8)
      (on/off)   Help

Ground Weather Radar Station Houston/Galveston, TX
   (on/off)   Help
weather_mapweather_map weather_map

Gulf Stream Current


Ad by Google

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.