Tuesday, January16, 2018 L-36.com


Marine Weather and Tides
Point Comfort, TX

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.

Sunrise 7:20AMSunset 5:55PM Tuesday January 16, 2018 7:22 PM CST (01:22 UTC) Moonrise 6:55AMMoonset 5:46PM Illumination 0% Phase: New Moon; Moon at 0 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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GMZ330 Matagorda Bay-galveston Bay- 343 Pm Cst Tue Jan 16 2018
.low water advisory in effect until 6 pm cst Wednesday...
.small craft advisory in effect through late tonight...
Tonight..North winds 20 to 25 knots becoming 15 to 20 knots after midnight. Bay waters rough becoming choppy. A slight chance of snow and sleet in the evening.
Wednesday..North winds 15 to 20 knots decreasing to 10 to 15 knots in the afternoon. Bay waters choppy becoming slightly choppy in the afternoon.
Wednesday night..Northeast winds 5 to 10 knots. Bay waters smooth.
Thursday..Northeast winds 5 to 10 knots. Bay waters smooth. A slight chance of showers.
Thursday night..East winds 5 to 10 knots. Bay waters smooth. A slight chance of showers.
Friday..Southeast winds 10 to 15 knots. Bay waters slightly choppy. A chance of showers.
Friday night..Southeast winds 10 to 15 knots. Bay waters slightly choppy. SEa fog possible. A chance of showers.
Saturday..South winds 10 to 15 knots. Bay waters slightly choppy. SEa fog possible. A slight chance of showers.
Saturday night..South winds 10 to 15 knots. Bay waters slightly choppy. A chance of showers.
Sunday..South winds 10 to 15 knots becoming southwest in the afternoon. Bay waters slightly choppy. A chance of showers and isolated Thunderstorms.
Sunday night..Northwest winds 5 to 10 knots increasing to 10 to 15 knots after midnight. Bay waters smooth becoming slightly choppy after midnight. A slight chance of showers.
GMZ300 Synopsis For High Island To The Matagorda Ship Channel Out 60 Nautical Miles Including Galveston And Matagorda Bays 343 Pm Cst Tue Jan 16 2018
Synopsis for high island to matagorda ship channel out 60 nm.. Strong cold northerly winds will continue tonight. NEar or below freezing temperatures in the bays and into the nearshore waters. Light rain over the bays and nearshore waters could be mixed with sleet or light snow. Wind speeds will gradually diminish Wednesday. High pressure will move east of the region allowing onshore winds to resume by Thursday night and persist into the weekend. The threat of sea fog may return to the area late Friday. The next front should move into the area late Sunday.

7 Day Forecast for Marine Location Near Point Comfort, TX
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location: 28.65, -96.6     debug


Area Discussion for - Corpus Christi, TX
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Fxus64 kcrp 162353 aaa
afdcrp
area forecast discussion... Updated
national weather service corpus christi tx
553 pm cst Tue jan 16 2018

Discussion Will allow winter weather advisory to expire for
areas along highway 281 at 00z. Satellite imagery shows some
enhancement to clouds moving up from deep south texas. There has
been intermittent freezing drizzle reported over the coastal bend.

Will keep coastal bend in the advisory until 9 pm. Wind chill
advisory expires for the western brush country at 6 pm also as
wind speeds diminish there. See aviation section for 00z tafs.

Aviation A band of freezing rain and sleet will continue to
move across the victoria crossroads in region of better isentropic
lift for the next 2-3 hours. This could lead to brief MVFR
ceilings and vsbys. For the coastal bend, MVFR ceilings are
lingering in this area. Freezing drizzle will be possible early
this evening with MVFR vsbys expected. Later this evening, the
ceilings will lift toVFR levels for all of south texas. May even
see some clearing in the vct area early Wednesday morning. Winds
will be gusty this evening along the coast with north winds
weakening overnight.

Previous discussion issued 430 pm cst Tue jan 16 2018
short term (tonight through Wednesday)...

back edge of precip continues to shift east across S tx this
afternoon. Drier air in the sfc-h9 layer continues to build
southeast into the region resulting in diminishing precip chances.

This drying trend will continue this evening as isentropic
downglide strengthens. Therefore, I have canceled the winter
weather advisory for the brush country... And the remaining areas
of the winter weather advisory will likely be able to be canceled
early.

Once the wintry precip shifts east of the area, the primary
weather hazards then become freezing temps and wind chills. Strong
north winds continue this afternoon across primarily the eastern
half of the region. Wind speeds should continue to slowly weaken
tonight as arctic high pressure builds into the area... Which when
combined with cold temps will result in a continuation of cold
wind chills. As such, the wind chill advisory continues for the
eastern 2 3 of S tx through tonight Wed morning and for the
western brush country through late afternoon (as wind speeds
should weaken further across the W brush country). If wind speeds
decrease even further overnight... Then additional areas of the
wind chill adv may be able to be canceled.

Forecast min temps are a bit problematic for tonight. Temps may
actually rise a couple of degrees late this afternoon and early
evening as some drier air filters into the region.

Overnight... Widespread cloudiness should result in temps holding
nearly steady until late in the night. At that time, some
thinning of the overcast should occur which should then allow for
a little better thermal cooling... Which should allow temps to
approach the currently forecast min temps. If cloud cover remains
rather thick, then min temps may end up being higher than
forecast.

Wednesday will be cold across the entire cwa. Persistent cloud
cover will keep modified arctic air trapped near the sfc which
should keep nearly the entire area in the 30s for the entire day.

Many areas may remain below freezing through much of the morning.

Some sunshine will be possible by late in the day across the
victoria area... But even then temps should remain below 40
degrees. One noticeable difference in Wednesday's weather will be
the weaker wind speeds.

Long term (Wednesday night through Tuesday)...

main forecast issue in the shorter term of this package is whether
precipitation will return Wednesday night, and whether that
precipitation will be wintry in nature. Looking at the upper air
pattern and the model soundings, feel that rainfall (if any) will be
limited to the extreme southern areas and that will mainly be after
midnight. With temperatures in some areas falling near freezing, we
could see some very light precip amounts toward morning and into
Thursday morning over southern inland areas. However, model
soundings kind of show some good dry layers overnight and Thursday
in those freezing areas, so confidence in this happening is not high
(unfortunately ECMWF was not available and GFS was coming in
spotty). In short, feel that the better chances for rainfall will be
Thursday afternoon and Thursday night when the upper trough gets
closer to the region and the isentropic pattern looks much more
favorable (due to coastal trough). By then we should see
temperatures above freezing and any rainfall will be liquid. Do have
near or below freezing temperatures Wednesday night away from the
coast, and another freeze warning may be needed by Wednesday
afternoon for some areas Wednesday night Thursday morning. Will need
to see better dynamics and or isentropic pattern to develop earlier
for any wintry precip early Thursday morning. For temperatures,
generally went with a blend of the nam12 and hires models for
Wednesday night, with cooler guidance Thursday for highs.

The upper trough will begin to move away from south texas late
Thursday night, and the coastal trough will weaken by Friday. As a
result, on Friday most of the rain chances will be limited to the
eastern portions of south texas (and if the upper trough is faster
more like the coastal areas and offshore). Upper ridge begins to
build Friday night and Saturday before another storm system moves
toward the southern plains on Sunday. Looks like most of south texas
will be dry-slotted for this event, with maybe just a small chance
over the SE coastal areas and better chances near victoria and
offshore on Sunday as the expected mid level cap develops. Drier air
moves in Sunday night, with no rainfall expected Monday and Tuesday.

There is a hint of maybe enough moisture return Tuesday night for
some showers, but for now kept things dry. For the Friday through
Tuesday time frame, generally accepted the superblend guidance
(except for the changes made to the weather and pop grids).

Preliminary point temps pops
Corpus christi 27 37 33 46 42 20 0 20 30 50
victoria 22 37 27 45 39 10 0 10 10 30
laredo 28 36 32 43 37 10 0 10 10 20
alice 27 36 32 44 39 10 0 20 30 40
rockport 27 38 35 47 44 20 0 10 20 40
cotulla 27 36 30 44 36 10 0 10 10 20
kingsville 27 37 32 45 41 20 0 20 30 50
navy corpus 31 37 37 48 46 30 0 20 30 50

Crp watches warnings advisories
Tx... Winter weather advisory until 6 pm cst this evening for the
following zones: jim wells... Live oak.

Freeze warning until noon cst Wednesday for the following zones:
aransas... Bee... Calhoun... Duval... Goliad... Jim wells...

kleberg... La salle... Live oak... Mcmullen... Nueces...

refugio... San patricio... Victoria... Webb.

Wind chill advisory until 10 am cst Wednesday for the following
zones: aransas... Bee... Calhoun... Duval... Goliad... Jim
wells... Kleberg... Live oak... Mcmullen... Nueces... Refugio...

san patricio... Victoria.

Winter weather advisory until 9 pm cst this evening for the
following zones: aransas... Bee... Calhoun... Goliad...

kleberg... Nueces... Refugio... San patricio... Victoria.

Wind chill advisory until 6 pm cst this evening for the
following zones: la salle... Webb.

Gm... Small craft advisory from 10 pm this evening to 2 pm cst
Wednesday for the following zones: waters from baffin bay
to port aransas from 20 to 60 nm... Waters from port aransas
to matagorda ship channel from 20 to 60 nm.

Gale warning until 10 pm cst this evening for the following
zones: coastal waters from baffin bay to port aransas out
20 nm... Coastal waters from port aransas to matagorda ship
channel out 20 nm... Waters from baffin bay to port aransas
from 20 to 60 nm... Waters from port aransas to matagorda
ship channel from 20 to 60 nm.

Small craft advisory until midnight cst tonight for the
following zones: bays and waterways from baffin bay to port
aransas... Bays and waterways from port aransas to port
o'connor.

Small craft advisory from 10 pm this evening to 9 am cst
Wednesday for the following zones: coastal waters from
baffin bay to port aransas out 20 nm... Coastal waters from
port aransas to matagorda ship channel out 20 nm.

Tmt 89... Aviation


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
VCAT2 1 mi52 min N 13 G 17 28°F 37°F1038.5 hPa
SDRT2 - 8773037 - Seadrift, TX 18 mi52 min NNW 8.9 G 12 27°F 42°F1038.4 hPa
PCNT2 - 8773701 - Matagorda Bay; Port O'Connor, TX 18 mi52 min N 24 G 29 29°F 38°F1038.7 hPa
MBET2 21 mi52 min NNE 1.9 G 2.9 28°F 51°F1036.5 hPa
AWRT2 31 mi52 min N 16 G 19 28°F 44°F1038 hPa
EMAT2 37 mi52 min N 1.9 G 1.9 26°F 45°F1037 hPa

Wind History for Port OConnor, TX
(wind in knots)    EDIT      (on/off)   Help
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E12
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NE9
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G17

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Port Lavaca - Calhoun County Airport, TX4 mi27 minN 13 G 2010.00 miLight Snow27°F22°F82%1038.9 hPa
Palacios Municipal Airport, TX19 mi29 minN 1810.00 miUnknown Precip and Breezy27°F21°F81%1038.4 hPa
Victoria, Victoria Regional Airport, TX22 mi31 minN 1210.00 miOvercast27°F19°F75%1039.2 hPa

Wind History from PKV (wind in knots)
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Last 24hrE7E7E7E7CalmNE4E3N25
G33
N24
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N22
G29
N23
G32
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N19
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1 day ago--E9E9E8E6----------E3--SE6SE6SE8--------SE4CalmE5E7E7
2 days ago--------NE3NE5--NE6------NE4--NE7E6E7E11E11E13SE14--------

Tide / Current Tables for Port Lavaca, Matagorda Bay, Texas
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Port Lavaca
Click for Map
Tue -- 12:07 AM CST     0.64 feet High Tide
Tue -- 06:54 AM CST     Moonrise
Tue -- 07:20 AM CST     Sunrise
Tue -- 02:15 PM CST     -0.55 feet Low Tide
Tue -- 05:45 PM CST     Moonset
Tue -- 05:52 PM CST     Sunset
Tue -- 08:18 PM CST     New Moon
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.60.60.60.60.50.50.40.30.20-0.1-0.3-0.4-0.5-0.5-0.5-0.5-0.3-0.200.20.40.50.6

Tide / Current Tables for Port O'Connor, Matagorda Bay, Texas
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Port O'Connor
Click for Map
Tue -- 06:53 AM CST     Moonrise
Tue -- 07:18 AM CST     Sunrise
Tue -- 11:16 AM CST     -0.65 feet Low Tide
Tue -- 05:45 PM CST     Moonset
Tue -- 05:52 PM CST     Sunset
Tue -- 08:18 PM CST     New Moon
Tue -- 11:46 PM CST     0.21 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.20.20.20.10-0.1-0.2-0.3-0.4-0.5-0.6-0.6-0.6-0.6-0.5-0.4-0.3-0.2-0.100.10.20.20.2

Weather Map and Satellite Images
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Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of SouthCentralPlains    EDIT
Geos

Wind Forecast for Corpus Christi, TX (20,4,5,8)
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Ground Weather Radar Station Corpus Christi, 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.