Saturday, December15, 2018 L-36.com


Marine Weather and Tides
Rockport, TX

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 7:11AMSunset 5:37PM Friday December 14, 2018 11:01 PM CST (05:01 UTC) Moonrise 12:25PMMoonset 12:00AM Illumination 51% Phase: First Quarter Moon; Moon at 8 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- 929 Pm Cst Fri Dec 14 2018
.small craft should exercise caution...
Rest of tonight..Northwest wind 15 to 20 knots decreasing to 10 to 15 knots after midnight. Bays choppy to occasionally rough.
Saturday..Northwest wind 10 to 15 knots. Bays slightly choppy to occasionally choppy.
Saturday night..North wind 5 to 10 knots. Bays smooth to slightly choppy.
Sunday..North wind around 5 knots shifting northeast in the afternoon. Bays smooth.
Sunday night..Northeast wind up to 5 knots. Bays smooth.
Monday..Northeast wind up to 5 knots. Bays smooth.
Monday night..East wind around 5 knots. Bays smooth.
Tuesday..East wind 5 to 10 knots. Bays smooth. A slight chance of showers.
Tuesday night..East wind around 5 knots. Bays smooth. A chance of showers.
Wednesday..Northeast wind 5 to 10 knots. Bays smooth to slightly choppy. A chance of showers.
Wednesday night..Northeast wind 5 to 10 knots shifting north after midnight. Bays smooth to slightly choppy. A slight chance of showers.
GMZ200 929 Pm Cst Fri Dec 14 2018
Synopsis for the middle texas coastal waters.. Conditions will improve from west to east tonight through Saturday. Small craft advisory conditions are expected over the nearshore waters through early Saturday morning and across the offshore waters through mid morning Saturday. Weak to moderate offshore flow is expected by Saturday afternoon. The winds will become weak offshore Saturday night and Sunday as the surface high pressure system settles over south texas. Weak onshore flow will resume Monday with a weak coastal trough forming over the coastal waters Tuesday. The next cold front will move off the coast Wednesday night. Isolated showers are anticipated for the gulf waters Tuesday. Scattered showers are possible Tuesday night through Wednesday night.


7 Day Forecast for Marine Location Near Rockport city, TX
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location: 27.99, -97.07     debug


Area Discussion for - Corpus Christi, TX
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Fxus64 kcrp 150453
afdcrp
area forecast discussion
national weather service corpus christi tx
1053 pm cst Fri dec 14 2018

Discussion
Note aviation discussion below corresponding to the 06z tafs.

Aviation
Continue to expect predominateVFR conditions during the taf
period. Anticipate weak to moderate NW wind tonight and Saturday,
then becoming light variable near the end of the TAF period.

Previous discussion issued 607 pm cst Fri dec 14 2018
discussion...

note aviation discussion below corresponding to the 00z tafs.

Aviation...

predominateVFR conditions expected during the period. Generally
weak to moderate NW wind overnight Saturday.

Previous discussion... Issued 324 pm cst Fri dec 14 2018
short term (tonight through Saturday night)...

strong northwest winds this afternoon will decrease below wind
advisory levels by late afternoon. The potent upper low currently
over east tx will continue to move east and northeast tonight
allowing the surface high pressure to settle across S tx overnight
and winds to continue decreasing. A weak to moderate northwest flow
is expected by late tonight and Saturday across inland portions of s
tx becoming light by Saturday night.

Most of S tx will be clear to mostly clear through the short term.

Clouds wrapping around the upper low and moving across the NE cwa,
will gradually lift northeast overnight. Much drier airmass, mostly
clear skies and diminishing winds tonight will allow temps to drop
into the upper 30s to mid 40s. Saturday is expected to be pleasant
with highs in the 60s under sunny skies.

Long term (Sunday through Thursday night)...

cool and dry conditions will continue into Sunday as a deep ridge
remains over the region. The surface high will slide east on Monday
allowing a weak onshore flow to develop. May be some patchy fog
early Monday morning across the southern coastal bend where
dewpoints surge upward before daybreak. Next short wave will
approach the region Monday afternoon bringing some clouds. Models
then diverge on handling of 2nd short wave that moves through south
texas Tuesday Wednesday. GFS is slower, more positively tilted and
develops an inverted trough along the coast. This results in a
better chance for pops. The ec is faster and keeps most of the
precip east of the area. Will split the differnece for now and show
low chance pops across the eastern zones. Rain chances will
decrease on Thursday as the upper trough moves east of the area.

Expect temperatures near seasonal values during much of the period.

Marine...

frequent gusts to gale force will continue across the offshore
waters through the remainder of the afternoon, decreasing to
advisory levels this evening. Advisory conditions are expected to
continue across the bays through the evening hours. Advisory
conditions are expected across the nearshore waters through late
tonight and across the offshore waters through mid morning Saturday.

Weak to moderate offshore flow is expected by Saturday afternoon.

The winds will become weak offshore Saturday night. A weak
offshore flow will continue Sunday as high pressure settles into
south texas. Weak onshore flow will develop on Monday as high
pressure moves east. A weak coastal trough may develop over the
waters on Tuesday as an upper level disturbance approaches from
the west. A cold front will move off the texas coast Wednesday
night with a moderate offshore flow developing in its wake.

Isolated showers are expected over the gulf waters Tuesday with
scattered showers Tuesday night through Wednesday night. .

Fire weather...

red flag conditions are expected to end by late this
afternoon early evening as winds continue to diminish and
humidity values increase. A dry airmass will remain in place
through Saturday, however winds will be lighter.

Preliminary point temps pops
Corpus christi 42 68 39 68 49 0 0 0 0 0
victoria 40 65 39 68 46 0 0 0 0 0
laredo 39 68 42 70 49 0 0 0 0 0
alice 40 69 39 70 46 0 0 0 0 0
rockport 44 64 44 65 51 0 0 0 0 0
cotulla 37 68 39 69 44 0 0 0 0 0
kingsville 39 69 38 71 47 0 0 0 0 0
navy corpus 47 63 47 66 54 0 0 0 0 0

Crp watches warnings advisories
Tx... None.

Gm... Small craft advisory until 3 am cst Saturday 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.

Small craft advisory until 9 am cst Saturday 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.

Wc 87... Aviation


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
RCPT2 - 8774770 - Rockport, TX 3 mi49 min SW 4.1 G 6 56°F 1021.8 hPa
RTAT2 - 8775237 - Port Aransas, TX 10 mi43 min NNW 8 G 8.9 1022.1 hPa
ANPT2 11 mi43 min W 8.9 G 11 57°F 1021.4 hPa
PTAT2 - Port Aransas, TX 11 mi61 min WNW 8 G 8.9 57°F 60°F1022.1 hPa (+1.7)41°F
TAQT2 - 8775296 - Texas State Aquarium, TX 21 mi43 min 58°F 58°F1021.6 hPa
AWRT2 22 mi49 min WNW 5.1 G 5.1 52°F 55°F1021.6 hPa
NUET2 25 mi49 min W 8 G 9.9 55°F1022.8 hPa
PACT2 - 8775792 - Packery Channel, TX 26 mi43 min NW 14 G 16 1022.3 hPa
MQTT2 - 8775870 - Malaquite Beach (Corpus Christi), TX 29 mi49 min NW 14 G 17 59°F 62°F1022 hPa
SDRT2 - 8773037 - Seadrift, TX 35 mi49 min W 4.1 G 5.1 54°F 53°F1021.5 hPa
IRDT2 38 mi49 min 56°F 56°F1023.2 hPa
PCNT2 - 8773701 - Matagorda Bay; Port O'Connor, TX 48 mi49 min WNW 11 G 14 53°F 54°F1020.6 hPa
MBET2 49 mi43 min NW 8.9 G 11 1019.5 hPa

Wind History for Rockport, TX
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Rockport Aransas County Airport, TX7 mi68 minNW 1010.00 miPartly Cloudy55°F41°F59%1022 hPa
Mc Campbell, TX9 mi66 minNW 610.00 miOvercast58°F41°F56%1022 hPa
Port Aransas, Mustang Beach Airport, TX12 mi66 minWNW 810.00 miOvercast57°F43°F61%1022.7 hPa
Corpus Christi, Corpus Christi Naval Air Station/Truax Field, TX24 mi2.1 hrsNNW 1210.00 miMostly Cloudy61°F44°F54%1021.8 hPa

Wind History from NGP (wind in knots)
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1 day agoS10S6SW12W10W10SW15
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2 days agoS8S5S7S6S6S8S9S10S6S4S7S7S7S9S8S11S12S12S12
G17
--SE13S16S7S16
G23

Tide / Current Tables for Rockport, Aransas Bay, Texas
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Rockport
Click for Map
Sat -- 12:08 AM CST     Moonset
Sat -- 01:53 AM CST     0.16 feet High Tide
Sat -- 05:49 AM CST     First Quarter
Sat -- 07:12 AM CST     Sunrise
Sat -- 12:58 PM CST     Moonrise
Sat -- 05:08 PM CST     0.01 feet Low Tide
Sat -- 05:34 PM CST     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.10.20.20.20.10.10.10.10.10.10.10.10.10.100000000.10.10.1

Tide / Current Tables for Aransas Pass, Texas Current
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Aransas Pass
Click for Map
Sat -- 12:08 AM CST     Moonset
Sat -- 03:36 AM CST     -0.00 knots Slack
Sat -- 05:49 AM CST     First Quarter
Sat -- 06:51 AM CST     -0.48 knots Max Ebb
Sat -- 07:11 AM CST     Sunrise
Sat -- 09:25 AM CST     -0.33 knots Min Ebb
Sat -- 12:00 PM CST     -0.52 knots Max Ebb
Sat -- 12:58 PM CST     Moonrise
Sat -- 04:58 PM CST     0.00 knots Slack
Sat -- 05:35 PM CST     Sunset
Sat -- 09:47 PM CST     0.87 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.70.50.40.2-0.1-0.3-0.4-0.5-0.4-0.3-0.4-0.5-0.5-0.5-0.3-0.2-0.100.20.40.60.80.90.7

Weather Map and Satellite Images
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GOES Local Image of SouthCentralPlains    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
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Wind Forecast for Corpus Christi, TX (0,6,7,8)
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Ground Weather Radar Station Corpus Christi, TX
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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.