Sunday, January21, 2018 L-36.com


Marine Weather and Tides
Seadrift, 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 7:19AMSunset 5:59PM Sunday January 21, 2018 6:54 AM CST (12:54 UTC) Moonrise 10:14AMMoonset 10:13PM Illumination 23% Phase: Waxing Crescent; Moon at 5 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- 335 Am Cst Sun Jan 21 2018
.dense fog advisory in effect until noon cst today...
Today..South wind 10 to 15 knots. Bays slightly choppy to occasionally choppy. Patchy drizzle in the morning. Areas of fog in the morning, then patchy fog in the afternoon.
Tonight..South wind 10 to 15 knots becoming west 5 to 10 knots after midnight. Bays slightly choppy to occasionally choppy. Areas of fog. A chance of showers in the evening. A slight chance of showers after midnight.
Monday..North wind 10 to 15 knots. Bays slightly choppy to occasionally choppy.
Monday night..North wind 5 to 10 knots. Bays smooth to slightly choppy.
Tuesday..Northeast wind 5 to 10 knots increasing to 10 to 15 knots in the afternoon. Bays slightly choppy to occasionally choppy.
Tuesday night..Northeast wind 10 to 15 knots. Bays slightly choppy to occasionally choppy.
Wednesday..Northeast wind 10 to 15 knots. Bays slightly choppy to occasionally choppy.
Wednesday night..Northeast wind 10 to 15 knots. Bays slightly choppy to occasionally choppy.
Thursday..East wind 10 to 15 knots. Bays slightly choppy to occasionally choppy. A slight chance of light rain.
Thursday night..East wind 10 to 15 knots. Bays slightly choppy to occasionally choppy. A slight chance of light rain.
GMZ200 335 Am Cst Sun Jan 21 2018
Synopsis for the middle texas coastal waters.. Southeast flow will slowly strengthen today as an area of low pressure moves east across the southern plains. Areas of fog will persist this morning across area bays and the nearshore waters. The southerly flow will gradually weaken tonight and become more southwest late tonight as a cold front approaches the area. A weak to moderate offshore flow is expected behind the front Monday. The offshore flow will weaken into Tuesday and Wednesday. A coastal trough could bring a slight chance of rain by mid-week and keep a relatively weak flow from a northeast direction. The flow is expected to become more easterly by Thursday.

7 Day Forecast for Marine Location Near Seadrift, TX
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location: 28.41, -96.71     debug


Area Discussion for - Corpus Christi, TX
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Fxus64 kcrp 211155
afdcrp
area forecast discussion
national weather service corpus christi tx
555 am cst Sun jan 21 2018

Discussion See aviation section for 12z tafs.

Aviation The strength of the southerly low level jet of 40
knots and increasing surface winds has led to chaotic aviation
conditions through the night with ceilings vsbys bouncing between
lifr and ifr. Will continue to mention low level wind shear at ali
and crp through 15z. Forecast ifr ceilings withVFR vsbys for the
coastal plains sites through 15-16z with possible lifr ceilings
and MVFR vsbys in patchy light drizzle. Expect MVFR ceilings will
move into lrd area early this morning but should clear out around
18z. Ceilings forecast to lift to MVFR for inland coastal bend by
mid morning while ceilings hold at ifr levels from the coastal
areas to the victoria crossroads late morning. Ceilings will lift
to MVFR this afternoon with possibility for a brief window ofVFR
conditions by 00z Monday. But fog and low clouds will move back
into the region during the evening hours as surface winds weaken
ahead of the next cold front. Should see areas of fog over the
coastal plains during the overnight hours with lifr ceilings ifr
vsbys. Cold front will arrive by 09z but fog low clouds not
expected to lift until after 12z Monday.

Previous discussion issued 412 am cst Sun jan 21 2018
short term (today through Monday)...

the mid to upper level low near the four corners region will move
east into western kansas this evening and then across northern
missouri by Monday afternoon. Surface low over the texas panhandle
has increased southerly low level flow over the region. Kcrp vad
wind profile showed southerly low level jet of 40 knots. Could see
some patchy drizzle with the fog over the region this morning.

Low level warm air advection along with adequately steep low level
lapse rates will lead to isolated showers mainly over the victoria
crossroads region this afternoon. Model forecast soundings show a
strong mid level inversion will remain over the region. Expect
thunderstorm development will be north and east of the forecast
area. Low level flow will shift to southwesterly by this afternoon
into this evening with deeper moisture axis shifting to the upper
texas coast. Isolated showers will be possible over the coastal
areas in advance of the front that moves into the region later
tonight. There will be a period tonight before the front arrives
when fog will redevelop mainly over the coastal plains. The cold
front will usher in drier air to the region for Monday.

Marine (today through Monday)...

areas of fog along the coast were dense around midnight, but
visibilities have improved during the night as the low level flow
strengthen. But with only limited observations along the coast,
dense fog could be still over the near shore waters. Will let the
dense fog advisory continue for the bays and near shore waters
this morning. Will monitor trends for the rest of the morning for
possible early cancellation. But with warm moist air moving across
the cooler shelf bay waters, suspect fog will still be a problem
this morning. Southerly winds will be at scec levels across the
offshore waters today into this evening. Isolated to scattered
showers will be possible tonight in advance of the next cold
front. Areas of fog will redevelop this evening before the
stronger winds arrive toward daybreak. A moderate offshore flow is
expected behind the front Monday with scec conditions over the
offshore waters.

Long term (Monday night through Saturday)...

cool and dry conditions expected Mon night and Tuesday as high
pressure settles across the region. Sfc high will shift east through
tue afternoon with winds becoming more easterly ahead of another
shot of reinforcing high pressure weak cold front. This weak cold
front is expected to move into the area late Tue night into wed
morning. The high pressure will settle across S tx with a trough of
low pressure developing along the coast. Models prog sufficient low
level moisture to combine with the coastal trough and an approaching
embedded short wave to bring a slight chc of -ra to the coastal
waters late Tue night. The slight chc shifts farther inland through
mid to late week as overrunning conditions develop and additional
upper level short waves track across the region. Models prog a cold
front to move through S tx Sat with rain chcs increasing ahead
and along the bdry and then ending from west to east. Drier and
cooler conditions are progged to filter into the area behind the
front.

Preliminary point temps pops
Corpus christi 76 55 72 44 66 10 20 0 0 10
victoria 75 52 69 40 66 20 20 0 0 10
laredo 79 51 71 44 68 10 0 0 0 0
alice 80 53 71 43 67 10 10 0 0 10
rockport 72 55 71 50 63 10 20 0 0 10
cotulla 75 46 70 38 67 10 0 0 0 0
kingsville 79 54 73 45 67 10 20 0 0 10
navy corpus 72 56 69 51 63 10 20 0 0 10

Crp watches warnings advisories
Tx... None.

Gm... Dense fog advisory until noon cst today for the following zones:
bays and waterways from baffin bay to port aransas... Bays
and waterways from port aransas to port o'connor... 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
SDRT2 - 8773037 - Seadrift, TX 0 mi55 min SE 14 G 16 65°F 56°F1013.9 hPa (-0.8)
AWRT2 13 mi55 min SSE 8.9 G 12 61°F 49°F1013.8 hPa (-0.8)
PCNT2 - 8773701 - Matagorda Bay; Port O'Connor, TX 17 mi55 min SSE 12 G 13 59°F 51°F1014.1 hPa (-0.8)
VCAT2 17 mi55 min SE 8.9 G 8.9 55°F 49°F1013.9 hPa (-0.7)
MBET2 20 mi55 min S 13 G 14 60°F 51°F1013.1 hPa (-0.9)
ANPT2 43 mi55 min SE 15 G 15 1012.6 hPa (-0.8)
RTAT2 - 8775237 - Port Aransas, TX 44 mi55 min SE 6 G 11 64°F 50°F1013.7 hPa (-0.7)
EMAT2 47 mi121 min ESE 9.9 G 13 59°F 49°F1014.1 hPa

Wind History for Seadrift, TX
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure

Wind History from PKV (wind in knots)
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Last 24hr--------S8SW6W4CalmCalmCalm--------Calm----CalmCalmCalmSW10SW10S11S13
1 day agoNE9NE8NE8NE8NE8N7NE7NE7NE8NE4N6N7N7NE9NE9NE6NE6NE6E14E14E16E19
G24
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2 days agoNE8NE7N6N4NW3N3N3N5N4N3NE4NE5N6NE7N7N6NE7NE9NE10NE10NE8NE8NE7NE9

Tide / Current Tables for Seadrift, San Antonio Bay, Texas
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Seadrift
Click for Map
Sun -- 07:18 AM CST     Sunrise
Sun -- 10:13 AM CST     Moonrise
Sun -- 12:51 PM CST     -0.24 feet High Tide
Sun -- 05:57 PM CST     Sunset
Sun -- 10:13 PM CST     Moonset
Sun -- 10:39 PM CST     -0.35 feet Low Tide
Sun -- 11:48 PM CST     -0.35 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.4-0.4-0.4-0.3-0.3-0.3-0.3-0.3-0.3-0.3-0.3-0.3-0.2-0.2-0.2-0.3-0.3-0.3-0.3-0.3-0.3-0.3-0.3-0.3

Tide / Current Tables for Port Lavaca, Lavaca Causeway, Matagorda Bay, Texas
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Port Lavaca
Click for Map
Sun -- 01:41 AM CST     0.25 feet High Tide
Sun -- 07:18 AM CST     Sunrise
Sun -- 10:13 AM CST     Moonrise
Sun -- 04:40 PM CST     -0.45 feet Low Tide
Sun -- 05:56 PM CST     Sunset
Sun -- 10:13 PM CST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.20.20.30.20.20.20.10.10.10.10-0.1-0.2-0.2-0.3-0.4-0.4-0.4-0.4-0.3-0.2-0.100.1

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 (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.