Wednesday, March29, 2017 L-36.com


Marine Weather and Tides
Point Comfort, TX

Version 3.4
What's New / NOTES
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.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.

Sunrise 7:18AMSunset 7:46PM Wednesday March 29, 2017 6:10 AM CDT (11:10 UTC) Moonrise 7:36AMMoonset 8:39PM Illumination 4% Phase: Waxing Crescent; Moon at 2 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- 341 Am Cdt Wed Mar 29 2017
.small craft advisory in effect until 10 am cdt this morning...
.small craft should exercise caution...
Today..South winds 15 to 25 knots. Bay waters choppy. Showers and Thunderstorms. Some Thunderstorms may be severe.
Tonight..South winds 10 to 15 knots becoming southwest after midnight. Bay waters slightly choppy. A chance of showers and Thunderstorms.
Thursday..Northwest winds 15 to 20 knots decreasing to 10 to 15 knots in the afternoon. Bay waters choppy becoming slightly choppy in the afternoon.
Thursday night..Southwest winds 5 to 10 knots becoming south after midnight. Bay waters smooth.
Friday..South winds 10 to 15 knots. Bay waters slightly choppy.
Friday night..Southeast winds 10 to 15 knots. Bay waters slightly choppy.
Saturday..Southeast winds 10 to 15 knots increasing to 15 to 20 knots in the afternoon. Bay waters slightly choppy becoming choppy in the afternoon.
Saturday night..Southeast winds around 15 knots. Bay waters slightly choppy to choppy. A chance of showers and Thunderstorms.
Sunday..Southeast winds around 15 knots becoming south in the afternoon. Bay waters slightly choppy to choppy becoming choppy in the afternoon. Showers and Thunderstorms likely.
Sunday night..Southwest winds 10 to 15 knots. Bay waters slightly choppy. A chance of showers and Thunderstorms.
GMZ300 Synopsis For High Island To The Matagorda Ship Channel Out 60 Nautical Miles Including Galveston And Matagorda Bays 341 Am Cdt Wed Mar 29 2017
Synopsis for high island to matagorda ship channel out 60 nm.. Strong southerly winds and rough seas should continue this morning and gradually decrease this afternoon. Seas will be slow to decrease due to the long southerly fetch. Conditions will improve further Thursday as a pacific cold front pushes off the coast. Moderate offshore winds are expected Thursday into Friday but southerly winds will be redeveloping over the weekend.

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 290944 cca
afdcrp
area forecast discussion... Corrected
national weather service corpus christi tx
444 am cdt Wed mar 29 2017

Short term (today through Thursday)
The leading edge of a surface boundary /and also a gravity wave as
noted from goes-r satellite imagery/ was analyzed to be located from
kbea to just west of kali to NW of khbv to south of klrd as of
writing. Behind the boundary, elevated convection has been trying
to develop but is struggling to maintain itself due to limited
moisture depth. Better convective development may occur closer to
sunrise across the coastal plains to victoria where the moisture
depth is prog to be deeper, where instability is prog to be
greater, and where h25 difluence is prog to be a little better.

Any storms that manage to develop this morning will have the
potential to produce small hail /given the extreme elevated
instability values/ and perhaps an isolated strong wind gust.

Precip chances should quickly end by mid morning as a
significantly drier airmass overspreads most of inland S tx as the
aforementioned boundary stalls along the coast.

Temps today are likely to warm into the 90s in the afternoon given
the expected dry airmass and a weak adiabatic downsloping
component. I am a little concerned that I did not go warm enough
for the coastal counties as this synoptic setup can often lead to
incredible warming across the coastal plains. However, given the
expected strong inland warming and quasi-cool gulf ssts, the
stalled boundary should start to retreat inland in the afternoon
acting as an effective seabreeze. Thus... I have limited corpus
christi's MAX temp today to only 92 degrees rather than the mid
90s.

Near surface moisture values are likely to increase this evening
ahead of the main cold front that is prog to push south across the
region late tonight. The GFS wants to develop light showers
across the coastal plains/adjacent gulf right along/ahead of
fropa late tonight. Despite impressive dynamical features aloft
/95 to 100 kt h25 jet streak and deep h5 trough/ moisture depth
limited to only the lowest 100mb as well as a thin layer around
h5 should preclude any precip development.

Nnw winds should increase late tonight with breezy conditions
possible around sunrise thurs. Mostly sunny skies with low
relative humidity values and temps near seasonable levels should
make for a nice day on Thursday.

Long term (Thursday night through Tuesday)
The deterministic solutions generally agree with regard to the
timing/position of the next upper disturbance... Moving sewd across
the rockies Friday then slowly approaching tx from the nw
Saturday... Moving across tx Sunday/Sunday night... Then lifting newd.

Increasing onshore flow expected over the cwa/msa given the
foregoing upper pattern. At least scec conditions expected over the
coastal msa Friday night through early Sunday. GFS deterministic
predict pwat values to increase to near/above normal values Saturday
over the ERN cwa/msa. The combination of upper forcing/moisture will
contribute to at least isolated/scattered convection Saturday
night/Sunday. Strong convection possible given GFS deterministic
cape/vertical shear. Drier conditions expected Monday/Tuesday.

Marine Strong southeast flow should rapidly weaken this
morning. Seas, however, may be slow to respond and the small craft
advisory has been extended through much of today for the gulf
waters to account for the hazardous seas. A brief window for
chances of showers or a storm will exist this morning and early
afternoon. A cold front will push south across area waters late
tonight into Thursday morning bringing a brief period of strong
north flow in its wake.

Preliminary point temps/pops
Corpus christi 92 61 82 58 86 / 40 10 10 0 0
victoria 88 57 79 55 85 / 50 10 10 0 0
laredo 92 61 86 60 97 / 0 0 0 0 0
alice 94 58 84 56 90 / 20 10 0 0 0
rockport 86 60 79 61 80 / 40 10 10 0 0
cotulla 91 56 84 56 94 / 0 0 0 0 0
kingsville 96 59 84 57 90 / 20 10 0 0 0
navy corpus 88 63 79 63 81 / 40 10 10 0 0

Crp watches/warnings/advisories
Tx... None.

Gm... Small craft advisory until 4 pm cdt this afternoon 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.

Small craft advisory until 7 am cdt this morning 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 until noon cdt today 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.

Rh/79... Short term
wc/87... Long term


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
VCAT2 1 mi41 min SSE 2.9 G 4.1 74°F 77°F1006.5 hPa
SDRT2 - 8773037 - Seadrift, TX 18 mi41 min S 6 G 8 76°F 76°F1006.8 hPa
PCNT2 - 8773701 - Matagorda Bay; Port O'Connor, TX 18 mi41 min SSE 5.1 G 6 74°F 1006.2 hPa
MBET2 21 mi41 min WNW 5.1 G 11 74°F
AWRT2 31 mi59 min SW 1 G 8 73°F 77°F1006.1 hPa
EMAT2 37 mi41 min W 8.9 G 9.9 74°F 78°F1008 hPa
MAXT2 - Mission-Aransas Reserve, TX 43 mi71 min 8 75°F 1007 hPa (+2.0)70°F
CPNT2 43 mi41 min S 4.1 G 9.9 74°F 76°F
RCPT2 - 8774770 - Rockport, TX 49 mi41 min WSW 4.1 G 8.9 74°F 78°F1006.2 hPa

Wind History for Port OConnor, TX
(wind in knots)    EDIT      (on/off)   Help
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SE16
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G16
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G23
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G24
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SE18
G22
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G21
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SE26
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G31
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G30
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SE11
SE6
E4
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G14
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SE9
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SE14
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G20
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G21
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G21
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SE14
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S9
G12
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SE10

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Port Lavaca - Calhoun County Airport, TX4 mi16 minN 07.00 miPartly Cloudy70°F68°F96%1007.1 hPa
Palacios Municipal Airport, TX19 mi18 minSE 39.00 miOvercast72°F68°F87%1007 hPa
Victoria, Victoria Regional Airport, TX22 mi20 minSSE 910.00 miOvercast73°F68°F84%1006.3 hPa

Wind History from PKV (wind in knots)
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Last 24hrSE10SE9SE6SE11SE16
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G25
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G27
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G29
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G28
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Calm
1 day agoCalmCalmCalmCalmS7CalmS8
G15
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G16
CalmS10CalmCalmCalmCalmCalmCalmCalmSE10S11
G16
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G14
2 days agoCalmCalmCalmCalmS13S14SE17
G24
SE19
G22
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G23
S18
G23
S15
G21
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G20
SE16
G21
SE17
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SE12SE10
G16
SE13SE10S5CalmCalmCalmCalmSE4

Tide / Current Tables for Port Lavaca, Matagorda Bay, Texas
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Port Lavaca
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Wed -- 03:31 AM CDT     0.31 feet Low Tide
Wed -- 07:19 AM CDT     Sunrise
Wed -- 08:35 AM CDT     Moonrise
Wed -- 11:31 AM CDT     0.88 feet High Tide
Wed -- 06:17 PM CDT     0.66 feet Low Tide
Wed -- 07:42 PM CDT     Sunset
Wed -- 07:48 PM CDT     0.66 feet High Tide
Wed -- 09:38 PM CDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.50.40.40.30.30.40.40.50.70.80.80.90.90.80.80.70.70.70.70.70.70.70.60.6

Tide / Current Tables for Port O'Connor, Matagorda Bay, Texas
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Port O'Connor
Click for Map
Wed -- 12:16 AM CDT     0.20 feet Low Tide
Wed -- 07:18 AM CDT     Sunrise
Wed -- 08:02 AM CDT     0.60 feet High Tide
Wed -- 08:34 AM CDT     Moonrise
Wed -- 02:13 PM CDT     0.47 feet Low Tide
Wed -- 04:31 PM CDT     0.49 feet High Tide
Wed -- 07:42 PM CDT     Sunset
Wed -- 09:37 PM CDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.20.20.30.30.40.50.50.60.60.60.60.60.50.50.50.50.50.50.50.40.40.30.20.2

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 (7,2,3,4)
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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.