Tuesday, January22, 2019 L-36.com


Marine Weather and Tides
Quintana, 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 7:13AMSunset 5:53PM Tuesday January 22, 2019 1:00 AM CST (07:00 UTC) Moonrise 7:49PMMoonset 8:31AM Illumination 98% Phase: Waning Gibbous; Moon at 16 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 Expires:201901221530;;726738 Fzus54 Khgx 220237 Cwfhgx Coastal Waters Forecast National Weather Service Houston/galveston Tx 837 Pm Cst Mon Jan 21 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. Gmz350-355-221530- Coastal Waters From Freeport To Matagorda Ship Channel Tx Out 20 Nm-coastal Waters From High Island To Freeport Tx Out 20 Nm- 837 Pm Cst Mon Jan 21 2019
.small craft advisory in effect from 3 am cst Tuesday through Tuesday morning...
.small craft should exercise caution...
.small craft should exercise caution...
Rest of tonight..Southeast winds 15 to 20 knots. Seas 3 to 4 feet building to 4 to 6 feet with occasional seas up to 7 feet after midnight. A slight chance of sprinkles and drizzle after midnight.
Tuesday..South winds 15 to 20 knots. Seas 5 to 7 feet with occasional seas up to 8 feet. A chance of sprinkles and drizzle in the morning, then a chance of showers in the afternoon.
Tuesday night..South winds 10 to 15 knots becoming northwest 20 to 25 knots after midnight. Seas 3 to 5 feet. A chance of showers early in the evening, then showers in the late evening and overnight. Isolated Thunderstorms after midnight.
Wednesday..North winds 20 to 30 knots becoming northwest 15 to 25 knots in the afternoon. Seas 4 to 6 feet with occasional seas up to 7 feet. Showers likely and isolated Thunderstorms in the morning, then a chance of showers in the afternoon.
Wednesday night..North winds 15 to 20 knots decreasing to 10 to 15 knots after midnight. Seas 2 to 4 feet.
Thursday..Northeast winds 5 to 10 knots becoming southeast in the afternoon. Seas 2 to 3 feet.
Thursday night..Southeast winds around 5 knots becoming northeast 10 to 15 knots after midnight. Seas 2 to 3 feet.
Friday..Northeast winds 10 to 15 knots becoming east in the afternoon. Seas 2 to 3 feet.
Friday night..Southeast winds around 10 knots becoming south after midnight. Seas 2 to 3 feet.
Saturday..South winds around 10 knots becoming west in the afternoon. Seas 2 to 3 feet. A chance of showers.
Saturday night..North winds 15 to 20 knots. Seas 3 to 5 feet. A chance of showers.
GMZ300 Synopsis For High Island To The Matagorda Ship Channel Out 60 Nautical Miles Including Galveston And Matagorda Bays 837 Pm Cst Mon Jan 21 2019
Synopsis for high island to matagorda ship channel out 60 nm.. Strengthening onshore winds and building seas can be expected tonight through tomorrow morning. Look for winds and seas to weaken a little tomorrow afternoon and evening as a cold front approaches the region. There will be a significant increase in winds and seas with the strong offshore flow after the passage of the front late Tuesday night through early Wednesday morning, and these conditions will last through Wednesday night and early Thursday morning.


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 220542
afdhgx
area forecast discussion
national weather service houston galveston tx
1142 pm cst Mon jan 21 2019

Aviation
Shallow layer around 3500-4000ft with moisture streaming in from
the gulf but clouds are much sparser in the west and crp sounding
showing the drier air present aloft. Have pared back the drop into
MVFR by 3-9 hours as airmass hasn't modified that much yet. Cold
front still well west yet over nm and shouldn't reach cll til
after 03z (could slow slightly near cll before push of colder air
from the north arrives) then on to iah area around 08-10z. Expect
some showers to develop in close proximity to the front so most of
the tafs have a transition from vcsh to -shra near FROPA then a
few hours of isentropic upglide and light rain. Ceilings should
rise a little this afternoon from MVFR to possiblyVFR then back
down with the approach of the front. Gusty southerly winds this
afternoon relaxing prior to the front then pivoting to the nnw
with caa.

45

Prev discussion issued 959 pm cst Mon jan 21 2019
update...

moderate 10 to 15 mph southerlies pumping in the lower moisture
as evidenced by the broken to overcast late day conditions.

Overnight southerly breezes and overcast will regulate interior
temperatures to the middle to upper 50s. Despite overcast and
modest onshore flow tomorrow afternoon, the afternoon will likely
warm into the lower to middle 70s along and south of i-10... Upper
60s north of the city. A tight surface onshore pressure gradient
will continue across east state downstream of lowering western
texas heights from the approach of the next texas upper trough.

Another day of increasing lower level precipitable waters below
85h capping will maintain overcast skies and introduce either
brief periods of sprinkles drizzle or light northern-moving
showers. Increasing probabilities of light showers will focus
north of the city late tomorrow as the forecast area falls just
downstream of a central texas cold front. The subsequent passage
of either a pre-frontal trough or the main boundary wind shift
will introduce overnight late Tuesday into Wednesday morning
precipitation, primarily rain with isolated thunderstorms.

Convective behavior may follow what occurred over this past
weekend, more organized rain or a broken line of thunderstorms
forming over the southern third of the CWA and advancing offshore
late Tuesday evening into the overnight Wednesday morning hours.

There does exist a far northeastern CWA very slight chance for
daytime Wednesday morning flurries or sleet mix-in with light
precipitation. There seems to be just too much to overcome such as
the timing of lingering moisture with the mid (forecast dry)
layer cold air advection cooling an initially above freezing (and
dry) 70-90h layer. 31
aviation...

ceilings of 3500-4000ft cover most of the eastern half of the area
with scattered deck to the west. Wedge of slightly drier air
offshore should expand into the area this evening then the more
moist air offshore arrives after midnight. Expect ceilings to
become more widespread overnight and lower with MVFR conditions
developing between 04-10z. May get into borderline llws around 09z
and will be monitoring the short term guidance closely this
evening and may be adding that after new NAM comes in. Cold front
over nm will push east and winds should ramp back up after 14-16z
time frame. Model soundings are in close agreement with bkn deck
remaining throughout the afternoon though differ in height and
have favored the less pessimistic GFS with persistent MVFR. Will
probably start to see some spotty light showers in the afternoon
becoming more numerous into the overnight hours as the front
arrives. Cll and uts will show vcsh for the afternoon and may
need to add cxo in coming update if guidance shows any eastward
shift of the streamers. 45

Preliminary point temps pops
College station (cll) 55 70 36 49 32 20 40 80 30 0
houston (iah) 55 72 40 48 33 20 30 90 60 0
galveston (gls) 59 70 44 49 41 20 40 90 80 10

Hgx watches warnings advisories
Tx... None.

Gm... Small craft advisory from 3 am to noon cst Tuesday 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 should exercise caution until 3 am cst Tuesday 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 should exercise caution Tuesday afternoon 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 should exercise caution through Tuesday morning for
the following zones: matagorda bay.

Small craft advisory until 6 pm cst Tuesday 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.

Discussion... 31
aviation marine... 45


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
FCGT2 - 8772447 - USCG Freeport, TX 1 mi31 min SSE 13 G 15 62°F 59°F1017.1 hPa
FPST2 1 mi49 min SE 15 G 18 62°F 59°F1016.4 hPa
LUIT2 13 mi31 min SSE 11 G 16 63°F 57°F1016.8 hPa
SGNT2 20 mi31 min SSE 13 G 15 62°F 57°F1015.9 hPa
42043 - GA-252 TABS B 22 mi121 min SSE 12 G 14 59°F1017.9 hPa
GRRT2 33 mi31 min SSE 8 G 12 60°F 56°F1017.5 hPa
EMAT2 36 mi31 min SSE 11 G 14 62°F 58°F1015.6 hPa
GTOT2 37 mi31 min S 5.1 G 11 62°F 58°F1017.2 hPa
EPTT2 - 8771013 - Eagle Point, TX 42 mi37 min S 11 G 12 59°F 54°F1017.6 hPa
GNJT2 - 8771341 - Galveston Bay (North Jetty), TX 42 mi37 min SSE 15 G 18 62°F 57°F1017.3 hPa
KXIH 45 mi26 min SSE 18
KBQX 47 mi26 min SSE 26 G 32 66°F 57°F

Wind History for USCG Freeport, TX
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Angleton / Lake Jackson, Brazoria County Airport, TX14 mi68 minSSE 1610.00 miMostly Cloudy63°F53°F70%1017.1 hPa

Wind History from LBX (wind in knots)
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Last 24hrCalmCalmCalmCalmCalmN3E3SE6SE13SE11SE13SE10
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1 day agoN10
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Tide / Current Tables for Freeport Harbor, Texas
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Freeport Harbor
Click for Map
Tue -- 01:36 AM CST     1.06 feet High Tide
Tue -- 07:14 AM CST     Sunrise
Tue -- 08:31 AM CST     Moonset
Tue -- 09:50 AM CST     -1.56 feet Low Tide
Tue -- 05:51 PM CST     Sunset
Tue -- 05:58 PM CST     1.17 feet High Tide
Tue -- 07:49 PM CST     Moonrise
Tue -- 10:25 PM CST     0.69 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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111.110.80.4-0.1-0.7-1.2-1.5-1.6-1.4-1.1-0.6-0.10.40.81.11.21.10.90.80.70.7

Tide / Current Tables for Christmas Bay, Texas
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Weather Map and Satellite Images
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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 (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.