Saturday, December16, 2017 L-36.com


Marine Weather and Tides
Lamar, 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 7:12AMSunset 5:38PM Saturday December 16, 2017 6:19 PM CST (00:19 UTC) Moonrise 5:41AMMoonset 4:45PM Illumination 2% Phase: Waning Crescent; Moon at 28 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- 338 Pm Cst Sat Dec 16 2017
Tonight..North wind 10 to 15 knots decreasing to 5 to 10 knots in the late evening and overnight. Bays slightly choppy to occasionally choppy. Showers and a slight chance of Thunderstorms in the evening, then a slight chance of showers after midnight.
Sunday..North wind 5 to 10 knots shifting northeast in the afternoon. Bays smooth to slightly choppy.
Sunday night..East wind around 5 knots. Bays smooth. A slight chance of showers in the evening, then a chance of showers after midnight.
Monday..Northeast wind around 5 knots shifting east in the afternoon. Bays smooth. A chance of showers. A slight chance of Thunderstorms in the afternoon.
Monday night..East wind around 5 knots shifting southeast after midnight. Bays smooth. A chance of showers and a slight chance of Thunderstorms.
Tuesday..South wind 5 to 10 knots. Bays smooth. A chance of showers and a slight chance of Thunderstorms.
Tuesday night..Southwest wind around 10 knots shifting northwest after midnight. Bays smooth to slightly choppy. A chance of showers and a slight chance of Thunderstorms in the evening, then a slight chance of showers after midnight.
Wednesday..Northwest wind 5 to 10 knots shifting west in the afternoon. Bays smooth.
Wednesday night..South wind around 5 knots. Bays smooth.
Thursday..South wind 5 to 10 knots. Bays smooth. A slight chance of showers.
Thursday night..South wind around 10 knots shifting east after midnight. Bays slightly choppy. A chance of showers.
GMZ200 338 Pm Cst Sat Dec 16 2017
Synopsis for the middle texas coastal waters.. Moderate to strong onshore flow will continue this evening for the offshore waters and nearshore waters from port aransas to port oconnor, and a small craft advisory is in effect for these areas. Moderate winds are expected elsewhere. Gradually improving conditions are expected later tonight. Rain chances continue tonight and decrease on Sunday. Another coastal trough may develop Sunday night. Weak to moderate onshore flow Monday and Tuesday as an upper level disturbance moves across the southwestern united states. This upper system will contribute to scattered showers and isolated Thunderstorms Monday and Tuesday. Offshore flow and drier conditions are expected Wednesday as the upper disturbance moves east. Weak to moderate onshore flow will return Thursday as a strong upper level disturbance moves southeastward across the rockies. Isolated showers are anticipated for Thursday.

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 170002 aaa
afdcrp
area forecast discussion... Updated
national weather service corpus christi tx
602 pm cst Sat dec 16 2017

Discussion
Updated for 00z aviation.

Aviation
Miserable aviation conditions will persist for the majority of the
taf cycle, with only slight improvements Sunday afternoon. Sfc low
that developed over the middle texas coastal waters will move nne
this evening with precip ending from west to east. Precip is all
ready east of lrd with a few more hours of -ra ra at ali crp vct.

In addition to the rain, low clouds blankets the south texas
terminals with ceilings ranging from MVFR to lifr. Reduced vsbys
will also occur in areas of light rain. Rain should move east of
the terminals by 06z, but low clouds will persist and patchy fog
may develop. Confidence is not high on dense fog forming, but have
started to trend vsbys downward for the overnight and early
morning hours. Only a slight improvement is expected during the
day on Sunday as ceilings will remain in the MVFR category. Winds
will be predominantly out of the N and NE tonight, becoming more e
and SE by Sunday afternoon. Wind speeds should generally be 8
knots or less through the period.

Previous discussion issued 355 pm cst Sat dec 16 2017
short term (tonight through Sunday night)...

areas of rain continue across western areas with showers developing
offshore and along the coast in vicinity of developing
boundary surface low. All of this being driven by potent upper level
disturbance currently over far west texas as well as moisture stream
from the pacific. Surface low boundary could clip far northeast cwa
this afternoon. Think any chance for thunderstorms will be limited
to immediate coastal areas in vicinity of the boundary. Models have
pretty good handle on positioning of upper disturbance, increasing
confidence in timing of end of precip shield... Expected to be out of
the forecast area by around midnight. Could linger just a bit longer
far northeast. Despite the upper disturbance getting out of the
area, will keep a very thick low cloud cover over most of the area
tonight. Some vis reductions are possible with this low ceiling fog.

Some guidance suggests some clearing of mid level clouds far west,
which could enhance fog potential in that area.

Should see an increase in cloud deck by mid-day Sunday, though
generally overcast conditions will continue. Another coastal trough
may develop by late Sunday to providing another low chance for
showers. Fog looks like a good potential for Sunday night as
lingering ground moisture from today's rain will have nowhere to go
with cool temps and persistent cloud cover.

Min temps tonight drop mainly into the 40s, but expect warmer
temps Sunday night with a general onshore flow. Highs will warm
only into the lower 60s on Sunday.

Long term (Monday through Saturday)...

anticipate convection across the CWA msa Monday Tuesday as an upper
level disturbance moves across the region (confident in
deterministic nwp output.) drier Tuesday night Wednesday as the
upper system moves east. Deterministic gfs ECMWF predict a strong
disturbance to enter the NW CONUS Wednesday then move SE across the
rockies. Yet, the GFS ecwmf diverge with respect to this system,
with the ECMWF becoming progressive and the GFS cuts it off over the
swrn conus. Will follow the GFS ensemble mean, which maintains the
upper trough axis west of tx Friday Saturday. The ECMWF predict the
development of a surface ridge over western canada and coincident
with a polar air mass Tuesday, which is a precursor pattern to cold
air outbreak (cao) events east of the rockies. Further, the mslp
center polar air mass begins to move swd into the CONUS as the
foregoing upper system predicted to move SE across the rockies
Wednesday, which is a large scale meteorological pattern that occurs
during cao events. Thus, confident that the polar air will enter the
cwa Friday as predicted by deterministic output. If the upper trough
axis remains west of the CWA msa Friday Saturday, a wintry
precipitation scenario could occur as early as Saturday. Yet, will
maintain sfc temperatures above freezing over the CWA Saturday
consistent with the superblend. Further, applying the top down
approach to select GFS deterministic soundings suggest rain over the
cwa.

Preliminary point temps pops
Corpus christi 47 63 59 72 64 70 10 30 30 40
victoria 45 66 57 71 61 90 10 20 50 50
laredo 44 61 55 68 61 20 10 10 20 30
alice 46 63 58 73 63 60 10 20 30 40
rockport 49 63 60 71 64 80 10 30 40 50
cotulla 42 60 54 67 58 30 10 10 20 40
kingsville 46 63 59 74 64 60 10 20 30 40
navy corpus 51 63 62 72 66 70 10 30 40 40

Crp watches warnings advisories
Tx... None.

Gm... Small craft advisory until 8 pm cst this evening for the
following zones: 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.

Tb 78... Aviation


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
AWRT2 14 mi49 min N 12 G 15 56°F 55°F1013 hPa
RTAT2 - 8775237 - Port Aransas, TX 20 mi49 min N 14 G 17 58°F 63°F1012.7 hPa
ANPT2 20 mi49 min NNW 16 G 17 58°F 61°F1011.8 hPa
SDRT2 - 8773037 - Seadrift, TX 26 mi49 min N 8.9 G 13 56°F 58°F1013.5 hPa
TAQT2 - 8775296 - Texas State Aquarium, TX 29 mi49 min 50°F 56°F1013.3 hPa
NUET2 32 mi163 min N 13 G 15 54°F1014.9 hPa
PACT2 - 8775792 - Packery Channel, TX 35 mi49 min WNW 16 G 19 53°F 57°F1013.7 hPa
MQTT2 - 8775870 - Malaquite Beach (Corpus Christi), TX 39 mi55 min WNW 11 G 16 54°F 62°F1013 hPa
PCNT2 - 8773701 - Matagorda Bay; Port O'Connor, TX 40 mi49 min ENE 19 G 22 60°F 58°F1011.9 hPa
VCAT2 42 mi49 min NNE 7 G 11 54°F 55°F1013.6 hPa
MBET2 42 mi49 min ESE 20 G 26 62°F 62°F1011.2 hPa
IRDT2 47 mi49 min WNW 15 G 18 51°F 55°F1014.3 hPa

Wind History for Rockport, TX
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Rockport Aransas County Airport, TX3 mi26 minNNW 85.00 miLight Rain Fog/Mist56°F55°F97%1013 hPa
Mc Campbell, TX18 mi24 minNW 117.00 miOvercast53°F51°F94%1013.9 hPa

Wind History from RKP (wind in knots)
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Last 24hrW3W3W5W5W5NW5CalmCalmN4NE4N5NE7NE6NE9NE8NE11NE11NE12NE9NE9NE11NE8N8NW8
1 day agoNE6NE6N6N9N11N10N8N11N11N12N13N17N17
G23
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N12N8N8NE8N7N5NE7E6SE3Calm
2 days agoSE3S5S4S3SW3S3SW4SW4CalmW3CalmN3CalmN4CalmE4E6E5E7E6E5E6NE6E11

Tide / Current Tables for Copano Bay State Fishing Pier, Texas
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Copano Bay State Fishing Pier
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Sat -- 01:48 AM CST     0.10 feet High Tide
Sat -- 05:40 AM CST     Moonrise
Sat -- 07:12 AM CST     Sunrise
Sat -- 12:32 PM CST     -0.25 feet Low Tide
Sat -- 04:45 PM CST     Moonset
Sat -- 05:34 PM CST     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.10.10.10.10.10-0-0.1-0.1-0.2-0.2-0.2-0.3-0.3-0.2-0.2-0.2-0.1-0.1-0.1-0000.1

Tide / Current Tables for Aransas Pass, Texas Current
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Aransas Pass
Click for Map
Sat -- 05:40 AM CST     Moonrise
Sat -- 06:43 AM CST     -1.55 knots Max Ebb
Sat -- 07:12 AM CST     Sunrise
Sat -- 11:41 AM CST     0.00 knots Slack
Sat -- 03:46 PM CST     1.57 knots Max Flood
Sat -- 04:46 PM CST     Moonset
Sat -- 05:35 PM CST     Sunset
Sat -- 11:49 PM CST     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0-0.1-0.4-0.7-1.1-1.4-1.5-1.5-1.4-1.2-0.9-0.40.20.81.31.51.61.51.41.310.80.50.2

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 (19,4,5,8)
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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.