Monday, March27, 2017 L-36.com


Marine Weather and Tides
Lamar, 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 7:22AMSunset 7:46PM Monday March 27, 2017 9:29 PM CDT (02:29 UTC) Moonrise 6:13AMMoonset 6:32PM Illumination 0% Phase: New Moon; Moon at 1 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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GMZ235 Bays And Waterways From Port Aransas To Port O'connor- 337 Pm Cdt Mon Mar 27 2017
Tonight..Southeast wind 10 to 15 knots. Bays slightly choppy to occasionally choppy.
Tuesday..Southeast wind 10 to 15 knots increasing to 15 to 20 knots in the afternoon. Bays choppy.
Tuesday night..Southeast wind 15 to 20 knots. Bays choppy. A slight chance of showers and Thunderstorms.
Wednesday..South wind 10 to 15 knots. Bays slightly choppy to occasionally choppy. A chance of showers and Thunderstorms.
Wednesday night..South wind 10 to 15 knots shifting southwest after midnight. Bays slightly choppy to occasionally choppy. A chance of showers and Thunderstorms.
Thursday..Northwest wind around 10 knots. Bays slightly choppy. A slight chance of showers and Thunderstorms.
Thursday night..West wind 5 to 10 knots shifting southeast after midnight. Bays smooth.
Friday..Southeast wind 5 to 10 knots increasing to 10 to 15 knots in the afternoon. Bays slightly choppy to occasionally choppy.
Friday night..Southeast wind around 15 knots. Bays slightly choppy to choppy.
Saturday..Southeast wind 15 to 20 knots. Bays choppy. A slight chance of showers and Thunderstorms.
Saturday night..Southeast wind 10 to 15 knots. Bays slightly choppy to occasionally choppy. A chance of showers and Thunderstorms.
GMZ200 337 Pm Cdt Mon Mar 27 2017
Synopsis for the middle texas coastal waters.. Weak to moderate onshore flow will continue tonight before an strengthening flow develops on Tuesday. Moderate to strong flow is anticipated by the afternoon and small craft advisories will likely become necessary. Strong onshore wind is expected Wednesday before weaken as a cold front approaches the area. There will also be a chance for showers and Thunderstorms. The front is expected to move through the waters Thursday with weak to moderate offshore flow developing in its wake. Moderate onshore winds return on Friday as the next storm system moves into the southern rockies.

7 Day Forecast for Marine Location Near Lamar, TX
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location: 28.12, -97.02     debug


Area Discussion for - Corpus Christi, TX
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Fxus64 kcrp 280212 aab
afdcrp
area forecast discussion... Updated
national weather service corpus christi tx
912 pm cdt Mon mar 27 2017

Discussion
At this time the forecast is doing just fine. As a result, see no
need to make any changes at this time. 00z crp sounding shows a
pretty good cap between 850mb-750mb level. Models projecting this
cap to remain through 06z Wednesday then erode some mainly over
the NE cwfa by 12z. This implies southern-most areas likely not to
see too much in rainfall for Wednesday, which forecast pretty
much is saying. In short: nothing broken so nothing will be
changed at this time.

Previous discussion /issued 626 pm cdt Mon mar 27 2017/
discussion...

see aviation discussion for 00z tafs.

Aviation...

good low level jet is forecast to develop later tonight, which
should limit fog formation and delay the MVFR conditions somewhat
(still am expecting them). However, with the southerly flow, we
should see MVFR CIGS at kvct before 06z (going about 03z), with
MVFR CIGS developing AOA 05z at kali and aft 06z at kcrp and klrd.

Could have some bkn v sct overnight but do not want to get too
precise with that as overall the CIGS should be MVFR. Borderline
wind shear mainly at kcrp and kali, but will hold off for now as
surface winds may stay up enough to preclude. Appears that the
cigs should lift AOA 15z with gusty southerly winds during the
day, increasing with time. No rainfall mentioned in the forecast.

Previous discussion... /issued 340 pm cdt Mon mar 27 2017/
short term (tonight through Tuesday night)...

surface cold front is stalled just northwest of forecast area with
a band of stratus ahead of it. This stratus is starting to
dissipate late this afternoon and should allow northwest zones to
still warm into the 80s despite being held in the 70s so far
today. The wind pattern is rather messy over western half of cwa
at this time, but should gradually return to a predominant
southeasterly flow as meso features along the cloud band mix out.

Overnight, expect stratus and possibly some patchy fog to
redevelop. Think more on the side of stratus tonight due to
deepening moist layer.

Next upper system will be approaching the area on Tuesday and will
lead to yet again a breezy day across the region. Will look for
wind gusts around 30 mph once again. Progressing of this system
and associated front look just a bit slower, and have backed off
on beginning mentionable precip chances. Will hold off on pops
until Tuesday night period. Temperatures should warm back into
the upper 80s and lower 90s.

Models in relatively good agreement about the approach of this
upper level system and associated precipitation, although ecmwf
remains a bit more robust with qpf... And a bit faster. Increased
pops slightly for Tuesday night, but expect just slight chance to
chance precip with the best chances northwest.

Long term (Wednesday through Monday)...

an upper low progged to move across tx Wed will push a dryline into
the CWA Wed and then a weak front Wed night/thu morning. Ahead of
the dryline on wed, moisture is progged to increase and pool across
the eastern cwa. Models also show a very unstable airmass, moderate
low level convergence and upper level divergence with an 80kt jet
nosing across S tx. However, forecast soundings show a strong ssw
llj ahead of the sfc bdry which typically results in a strong cap.

Models do show the cap weakening through the day. The combination of
these features is expected to produce num shra/tsra's across vct,
with pops tapering off farther S and W ahead and along the dryline
bdry. Drier air pushes across the western CWA Wed night, however
sufficient moisture remains in place across the east for isol/sct
convection to continue through Wed night then exit to the e-ne as
the upper system begins to also exit to the ne. SPC has the
northeastern tip of the CWA in a slight risk for svr wx and a
marginal risk slightly farther S and W on wed. The best chcs will be
to the N and NE of the vct crossroads. There may be a few strong
storms with gusty winds and small hail. A brief spinup is also not
out of the question as there is a brief window when the shear is
stronger. Behind the coldfront Thu afternoon, drier and slightly
cooler conditions are expected. Night time lows will be more
noticeable Thu night. Fri looks dry with increasing rain chcs once
again over the weekend with another system approaching the area.

Preliminary point temps/pops
Corpus christi 71 84 72 87 66 / 10 10 10 30 20
victoria 69 85 71 85 65 / 10 10 30 70 30
laredo 71 94 69 93 64 / 10 10 20 10 10
alice 70 89 71 92 63 / 10 10 10 30 20
rockport 73 83 73 82 69 / 10 10 10 50 30
cotulla 69 92 67 93 61 / 10 10 40 20 10
kingsville 71 88 72 91 65 / 10 10 10 20 20
navy corpus 72 80 73 84 69 / 10 10 10 30 30

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

Gm... None.

Gw/86... Short term


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CPNT2 0 mi41 min ESE 8.9 G 11
MAXT2 - Mission-Aransas Reserve, TX 1 mi89 min 8 75°F 1010 hPa (+0.0)72°F
RCPT2 - 8774770 - Rockport, TX 7 mi41 min SSE 8.9 G 12
AWRT2 14 mi41 min ESE 9.9 G 13
RTAT2 - 8775237 - Port Aransas, TX 20 mi41 min ESE 6 G 9.9 73°F 71°F1009.7 hPa
PTAT2 - Port Aransas, TX 20 mi29 min ESE 9.9 G 11 72°F 75°F1009.6 hPa (+0.3)71°F
MIST2 20 mi74 min SE 11 74°F 1010 hPa72°F
SDRT2 - 8773037 - Seadrift, TX 26 mi41 min E 7 G 9.9 75°F 79°F1010.2 hPa
TAQT2 - 8775296 - Texas State Aquarium, TX 29 mi41 min 75°F 76°F1008.5 hPa
NUET2 32 mi41 min SSE 11 G 16
PACT2 - 8775792 - Packery Channel, TX 35 mi41 min SE 9.9 G 14 74°F 79°F1009.4 hPa
MQTT2 - 8775870 - Malaquite Beach (Corpus Christi), TX 39 mi41 min ESE 12 G 14
PCNT2 - 8773701 - Matagorda Bay; Port O'Connor, TX 40 mi41 min ESE 9.9 G 12
VCAT2 42 mi41 min SE 12 G 14 75°F 79°F1009.9 hPa
MBET2 42 mi41 min SSE 9.9 G 11 73°F
IRDT2 47 mi41 min SE 11 G 13 74°F 81°F1009.8 hPa

Wind History for Rockport, TX
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S16
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Rockport Aransas County Airport, TX3 mi36 minSE 98.00 miPartly Cloudy74°F70°F88%1009.9 hPa
Mc Campbell, TX18 mi34 minESE 410.00 miMostly Cloudy74°F71°F91%1009.5 hPa
Port Aransas, Mustang Beach Airport, TX22 mi34 minSE 65.00 miFog/Mist73°F71°F95%1009.5 hPa

Wind History from RKP (wind in knots)
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Last 24hrSE14
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SE9S11SE9SE6SE6SE7SE12SE7SE7SE7SE6SE8SE9SE12SE14SE13SE13SE14SE12SE12SE12SE9
1 day agoS7S11
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2 days agoS10
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S6S6
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S5S6S55SW5SW5W6W4N5W8NW9NW7NW6SE5SE11SE11SE10S8

Tide / Current Tables for Copano Bay State Fishing Pier, Texas
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Copano Bay State Fishing Pier
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Mon -- 05:56 AM CDT     0.43 feet High Tide
Mon -- 07:12 AM CDT     Moonrise
Mon -- 07:23 AM CDT     Sunrise
Mon -- 02:22 PM CDT     0.32 feet Low Tide
Mon -- 07:31 PM CDT     Moonset
Mon -- 07:43 PM CDT     Sunset
Mon -- 08:07 PM CDT     0.37 feet High Tide
Mon -- 09:59 PM CDT     New Moon
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.40.40.40.40.40.40.40.40.40.40.40.40.30.30.30.30.30.40.40.40.40.40.40.4

Tide / Current Tables for Aransas Pass, Texas Current
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Aransas Pass
Click for Map
Mon -- 03:18 AM CDT     0.47 knots Max Flood
Mon -- 05:29 AM CDT     -0.00 knots Slack
Mon -- 07:12 AM CDT     Moonrise
Mon -- 07:23 AM CDT     Sunrise
Mon -- 09:24 AM CDT     -0.69 knots Max Ebb
Mon -- 01:51 PM CDT     0.00 knots Slack
Mon -- 04:15 PM CDT     0.57 knots Max Flood
Mon -- 07:31 PM CDT     Moonset
Mon -- 07:43 PM CDT     Sunset
Mon -- 07:53 PM CDT     -0.00 knots Slack
Mon -- 09:48 PM CDT     -0.12 knots Max Ebb
Mon -- 09:59 PM CDT     New Moon
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.10.20.30.50.40.2-0.2-0.4-0.6-0.7-0.7-0.6-0.5-0.30.10.40.60.50.30.1-0-0.1-0.1-0.1

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 (22,6,7,8)
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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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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.