Saturday, June23, 2018 L-36.com


Marine Weather and Tides
Quintana, 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 6:22AMSunset 8:25PM Saturday June 23, 2018 4:35 PM CDT (21:35 UTC) Moonrise 3:31PMMoonset 2:20AM Illumination 80% Phase: Waxing Gibbous; Moon at 10 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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GMZ355 Coastal Waters From Freeport To Matagorda Ship Channel Tx Out 20 Nm-coastal Waters From High Island To Freeport Tx Out 20 Nm- 318 Pm Cdt Sat Jun 23 2018
.small craft should exercise caution...
Tonight..South winds 15 to 20 knots. Seas 3 to 5 feet.
Sunday..South winds around 15 knots. Seas 3 to 5 feet.
Sunday night..Southeast winds 15 to 20 knots. Seas 3 to 5 feet.
Monday and Monday night..Southeast winds 10 to 15 knots. Seas 3 to 5 feet. A slight chance of showers and Thunderstorms on Monday.
Tuesday..Southeast winds 10 to 15 knots. Seas 2 to 4 feet.
Tuesday night..South winds 10 to 15 knots. Seas 2 to 3 feet.
Wednesday..South winds around 10 knots. Seas 2 to 3 feet. A slight chance of showers and Thunderstorms.
Wednesday night and Thursday..South winds 10 to 15 knots. Seas 2 to 3 feet. A slight chance of showers and isolated Thunderstorms on Thursday.
Thursday night..South winds 10 to 15 knots. Seas 2 to 4 feet.
GMZ300 Synopsis For High Island To The Matagorda Ship Channel Out 60 Nautical Miles Including Galveston And Matagorda Bays 318 Pm Cdt Sat Jun 23 2018
Synopsis for high island to matagorda ship channel out 60 nm.. Elevated onshore winds will persist through the weekend with high pressure to the east and lower pressure over west texas. Wind and seas are expected to come down a little, especially toward the middle to end of the upcoming week, as the high pressure edges closer to the area.

7 Day Forecast for Marine Location Near Quintana, TX
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location: 28.95, -95.31     debug


Area Discussion for - Houston/Galveston, TX
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Fxus64 khgx 232029
afdhgx
area forecast discussion
national weather service houston galveston tx
329 pm cdt Sat jun 23 2018

Discussion
Hot weather, just shy of heat advisory thresholds, continues again
today. Not much in the way of change is expected for the next
week, though deeper into the week temperatures will back down
slightly, and low chances for showers and thunderstorms will creep
in. But, in general, look for a warm summer week ahead.

Near term [through tonight]
This afternoon, southeast texas Sat between a high pressure area
centered over the eastern gulf and low pressure near the texas new
mexico border. A seabreeze has pushed slightly inward from the
coast, but is fairly subtle. Only a faint fine line is visible on
radar, and satellite indicates the boundary by showing a little
more vertical development in the vicinity of the boundary.

Temperatures have only risen into the lower 90s today, likely due
to increased mixing from southerly winds of about 15 knots. This
has helped keep the heat index in the 102-106 degree range as of 3
pm.

In the remaining afternoon hours, we may yet come close to the
heat advisory threshold of 108 degrees, but do not expect 108 to
be reached over anything more than localized hot spots for a brief
moment.

Though winds should diminish slightly tonight, I expect that like
last night, they should stay up enough to keep temperatures from
cooling off significantly and to keep much in the way of fog from
forming. Instead, we should look for some low stratus to crop up
again late tonight.

Now... Far to our north, there are expectations for the development
of thunderstorms and eventually an MCS along a stalled boundary
around the red river, moving to the east-southeast or southeast.

Short range models are unanimous in dissipating this activity
before it reaches our area. Given that the upper feature helping
support this MCS will be far from us, that seems reasonable. That
said, these features are not particularly well handled by models
and we'll have to keep an eye on things tonight just to ensure it
plays out as expected.

Short term [Sunday through Monday night]
It's ridge city aloft into early next week. Indeed, the ridge
should be growing stronger through Monday night with similar 850
mb temperatures, so still looking for afternoon highs in the lower
to middle 90s. One key difference - an upper low over the gulf of
mexico will draw westward into northeast mexico during this
period. Like the subtle vort MAX mentioned above, it's most
likely to be too far away to give us a serious chance at rain.

Still, there's enough uncertainty that pops will rise a bit Sunday
and Monday. It's not enough tomorrow for a mention of precip, but
i do have some slight chances on Monday.

Max heat indices on Sunday look to hit the 105-108 range around
and north of the houston metro. This should continue our trend of
almost... But not quite advisory level heat for another day. Still,
this is so close that the overnight shift will have to evaluate
the need for an advisory again. Regardless, it will be quite hot,
higher than even typically hot summertime in southeast texas.

People enjoying the outdoors will want to do so with plenty of
water, and preferably with easy access to air conditioning for
breaks.

Long term [Tuesday through Saturday]
As we go deeper into the week, the highest 500 heights look to
drift eastward, and though it's a subtle change, it should be
enough to keep afternoon highs closer to 90 than 95. Similarly,
the heat index should still peak in triple digits each day, but
looking for things to top out closer to 100 degrees than 105 or
110.

Chances for any showers Tuesday look slim as models prog a small
pocket of dry air and lack of upward motion. After that, however,
precipitable water should surge back up above 1.5 inches and
towards 1.75 or 1.8 inches. Given the high midlevel heights and
warm low level temperatures, I wouldn't expect much in the way of
showers or storms, but we may be able to generate some
precipitation in the general vicinity of the seabreeze. Will hang
onto daily slight chances for showers and storms.

Aviation [18z TAF issuance]
Vfr this afternoon and on into the early evening hours with gusty
s to sse winds. Slightly weaker winds overnight with possible MVFR
ceiling development, but winds should stay up enough to keep fog
formation minimal. BecomingVFR areawide mid to late morning tomorrow
with increasingly gusty S winds. Look for a similar forecast for the
next several days, until maybe Monday night through Tuesday morning
when the area should see weaker winds and possible lower ceilings.

42

Marine
Caution flags will remain up for elevated winds and
seas through tomorrow morning, and caution advisory
flags might be needed for parts of the area on into
Monday as the gradient remains tight. There should
be strong rip currents too. Winds seas can still be
expected to come down Monday night-Tuesday when the
gradient relaxes a bit. 42

Preliminary point temps pops
College station (cll) 77 94 77 94 76 10 10 10 20 10
houston (iah) 79 92 79 92 77 10 10 10 20 0
galveston (gls) 83 87 82 86 81 10 10 10 10 10

Hgx watches warnings advisories
Tx... High rip current risk until 8 pm cdt this evening for the
following zones: brazoria islands... Galveston island and
bolivar peninsula... Matagorda islands.

Gm... Small craft should exercise caution through Sunday morning 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... Galveston
bay... Matagorda bay... 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.

Near term... Luchs
short term... Luchs
long term... Luchs
aviation... 42
marine... 42


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
FCGT2 - 8772447 - USCG Freeport, TX 1 mi47 min SSE 12 G 16 85°F 85°F1011.9 hPa
LUIT2 13 mi47 min S 12 G 16 86°F 1011.4 hPa
SGNT2 20 mi47 min S 12 G 15 85°F 86°F1010.6 hPa
42043 - GA-252 TABS B 22 mi95 min 12 G 16 82°F 84°F1011.7 hPa (-1.2)
GRRT2 33 mi47 min SSE 9.9 G 15 84°F 86°F1011.4 hPa
EMAT2 36 mi53 min SSE 12 G 16 85°F 91°F1010.2 hPa
GTOT2 37 mi47 min S 7 G 15 87°F 86°F1011.6 hPa
EPTT2 - 8771013 - Eagle Point, TX 42 mi47 min S 15 G 19 85°F 86°F1011.5 hPa
GNJT2 - 8771341 - Galveston Bay (North Jetty), TX 42 mi53 min S 16 G 18 84°F 85°F1011.4 hPa
KXIH 45 mi40 min S 13 88°F 77°F
KBQX 47 mi40 min SSE 11 G 16 86°F 79°F

Wind History for USCG Freeport, TX
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Angleton / Lake Jackson, Brazoria County Airport, TX14 mi42 minSSE 1710.00 miPartly Cloudy90°F77°F66%1011 hPa

Wind History from LBX (wind in knots)
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Last 24hrS13
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S12S13S14S8S7S7S9S10S8S9S7S5S6S5S7S17S16S15S16
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1 day agoS7
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S6SW5SW3CalmCalmN3CalmCalmCalmCalmCalmCalmS3S3S6S5SW6SW6SW7SW6S11S13S13
2 days agoSW8NE4NE5SE3E3E3E3CalmSE3CalmN3N3N3N4CalmE9N9NW6CalmCalmNE3SE4S8SE7

Tide / Current Tables for Freeport Harbor, Texas
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Freeport Harbor
Click for Map
Sat -- 02:08 AM CDT     1.25 feet High Tide
Sat -- 03:20 AM CDT     Moonset
Sat -- 06:23 AM CDT     Sunrise
Sat -- 07:25 AM CDT     0.97 feet Low Tide
Sat -- 11:58 AM CDT     1.21 feet High Tide
Sat -- 04:30 PM CDT     Moonrise
Sat -- 07:28 PM CDT     -0.39 feet Low Tide
Sat -- 08:23 PM CDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
11.21.21.21.11.111111.11.21.21.10.90.60.3-0-0.3-0.4-0.4-0.200.3

Tide / Current Tables for Christmas Bay, Texas
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Christmas Bay
Click for Map
Sat -- 03:19 AM CDT     Moonset
Sat -- 06:22 AM CDT     Sunrise
Sat -- 08:15 AM CDT     0.69 feet High Tide
Sat -- 11:25 AM CDT     0.22 feet Low Tide
Sat -- 04:30 PM CDT     Moonrise
Sat -- 05:39 PM CDT     0.66 feet High Tide
Sat -- 08:22 PM CDT     Sunset
Sat -- 11:14 PM CDT     -0.04 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
00.10.20.30.40.50.60.70.70.60.40.20.20.30.40.50.60.60.70.60.40.20-0

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 (17,4,5,8)
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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.