Monday, September25, 2017 L-36.com


Marine Weather and Tides
Tierra Grande, 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 7:18AMSunset 7:22PM Monday September 25, 2017 1:43 PM CDT (18:43 UTC) Moonrise 11:10AMMoonset 10:16PM Illumination 26% 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
    EDIT      (on/off)   Help
GMZ230 Bays And Waterways From Baffin Bay To Port Aransas- 1036 Am Cdt Mon Sep 25 2017
Rest of today..Southeast wind 10 to 15 knots. Bays slightly choppy to occasionally choppy. Isolated Thunderstorms late in the morning. A chance of showers. A chance of Thunderstorms in the afternoon.
Tonight..Southeast wind 10 to 15 knots. Bays slightly choppy to occasionally choppy. A chance of showers and Thunderstorms after midnight.
Tuesday..Southeast wind 10 to 15 knots. Bays slightly choppy to occasionally choppy. A chance of showers and Thunderstorms.
Tuesday night..Southeast wind 10 to 15 knots. Bays slightly choppy to occasionally choppy. A chance of showers and Thunderstorms.
Wednesday..East wind 10 to 15 knots. Bays slightly choppy to occasionally choppy. A chance of showers and Thunderstorms.
Wednesday night..East wind 10 to 15 knots decreasing to 5 to 10 knots after midnight. Bays slightly choppy to occasionally choppy. A slight chance of showers and Thunderstorms.
Thursday..East wind 5 to 10 knots. Bays smooth. A slight chance of showers and Thunderstorms.
Thursday night..Northeast wind 5 to 10 knots. Bays smooth to slightly choppy. A slight chance of showers and Thunderstorms.
Friday..Northeast wind around 10 knots. Bays slightly choppy. A slight chance of showers and Thunderstorms.
Friday night..Northeast wind 5 to 10 knots. Bays smooth to slightly choppy. A slight chance of showers and Thunderstorms.
GMZ200 1036 Am Cdt Mon Sep 25 2017
Synopsis for the middle texas coastal waters.. A mainly weak to moderate onshore flow will prevail today through Tuesday. Isolated to scattered showers and Thunderstorms will be possible during the late night and morning hours today into Tuesday. Rain chances will then continue through the middle of the week as an upper level disturbance moves north of the area and a frontal boundary sinks southward across the state. Weak to moderate winds will shift east and eventually northeast through the second half of the week.

7 Day Forecast for Marine Location Near Tierra Grande, TX
   Hourly   EDIT   Help
location: 27.74, -97.45     debug


Area Discussion for - Corpus Christi, TX
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus64 kcrp 251814
afdcrp
area forecast discussion
national weather service corpus christi tx
114 pm cdt Mon sep 25 2017

Discussion
Update for 18z aviation cycle.

Aviation
Today...VFR. Some heavier showers and isolated thunderstorms will
continue across the region this afternoon and evening. Brief
reduction to MVFR ifr possible with wind gusts upward of 25 knots.

Otherwise no other impacts to the terminals. Medium to high
confidence.

Tonight...VFR MVFR. Continued shower storm activity across the
west is expected while some streamer storms develop just off the
coast and move inland during the mid-morning hours. Brief lower
restrictions possible within the storms. Medium confidence.

Tuesday...VFR. Expecting more showers and storms across the region
but may hold off until after the current TAF cycle. Conditions
generally look like a carbon copy of today with a bit more
activity across the west than there currently is. Medium to high
confidence.

Previous discussion issued 1143 am cdt Mon sep 25 2017
discussion...

seeing some better coverage of showers across the coastal bend
into the coastal plains near victoria. Have increased pops a bit
to account for this and expected activity through the evening
hours. Seabreeze will continue to move inland and provide some
better lift for showers towards the brush country later this
afternoon. Have been watching an area of activity across part of
the sdb mountains track towards the northeast. This may send an
outflow towards the rio grande plains later today helping to
combine with the seabreeze for even more activity. Tried to show a
general trend in the hourly temperatures to account for the rain
activity, so they were lowered where the higher pops are in place.

Otherwise the forecast is in good shape.

Previous discussion... Issued 639 am cdt Mon sep 25 2017
discussion... See aviation section for 12z tafs.

Aviation... GOES 16 channel difference for low clouds fog
indicated generally scattered low clouds over coastal bend this
morning with some areas over the brush country showing broken
clouds with MVFR ceilings. Sufficient moisture and steep low
level lapse rates had led to isolated streamer showers over
the coastal plains this morning. The activity will become
more scattered after some heating and drift inland with the
sea breeze through the afternoon. Showers and thunderstorms
will provide MVFR ceilings vsbys.

Weak upper level disturbance moving out of northeast mexico late
this afternoon into evening should lead to scattered convection
moving into the lrd area in the evening and early overnight
period. Will show MVFR ceilings and vsbys with the convection.

Coastal convergence zone will lead to redevelopment of coastal
showers over the southern coastal bend that will affect crp ali
areas. MVFR ceilings expected to become prevalent over the coastal
plains by 08z Tuesday.

Previous discussion... Issued 437 am cdt Mon sep 25 2017
short term (today through Tuesday)...

the mid to upper level ridge axis over the region will translate
eastward into the western gulf of mexico through Tuesday. Although
goes 16 image of precipitable water shows a region of drier air
over the upper texas coast making its way into the northeast part
of the forecast area, higher moisture remains along the lower
texas coast up to the coastal bend with pwat values from 1.8-1.9
inches. The NAM may have a better handle on how steep the low
level lapse rates are over the coastal waters into the coastal
bend this morning compared to the GFS rap. Kcrp radar loop has
shown a steady stream of isolated showers into the coastal bend
over the past couple of hours. Expect with a little bit of
heating, the coverage of convection will become scattered this
morning from the coastal plains into the eastern brush country.

Low level convergence zone will move inland with the sea breeze
boundary this afternoon. Image of precipitable water showed the
deeper moisture axis along the rio grande with pwat values around
2 inches. Will show slightly better chance for convection over the
brush country this afternoon.

With the ridge axis moving east by tonight, a short wave trough
will move out of mexico, from coahuila into the northern brush
country up to the hill country by 12z Tuesday. The upper level
flow will be weakly diffluent while the low level flow will
gradually strengthen from the southeast during the overnight
hours. Will show pops of 40-60 percent over the brush country for
tonight. After dry period this evening along the coast, low level
convergence axis will strengthen overnight and expect scattered
convection to develop over the coastal bend. Will increase pops
back to chance category for overnight.

Nam gfs ECMWF models show the short wave trough moving across the
region on Tuesday. Deep moisture will be in place over south texas
on Tuesday with pwat values above 2 inches along the coast to near
2.4 inches over the western brush country. Pops will be tapered
from 40 percent at the coast to likely at 60 percent over the
brush country.

Long term (Tuesday night through Sunday)...

forecast remains favorable for a wet mid week especially across the
western half of the CWA (rio grande plains and brush country). The
upper level closed low which will form over the southwest states
will slowly progress east northeastward into the four corners region
during the mid week. Deep pacific moisture will be drawn into the
region, with precipitable water values climbing above normal (well
above 2 inches). With the position of this upper level disturbance
the heaviest rainfall will remain to the north and west of the
region over the up stream rio grande river basin, and may bring some
rises along the river. Locally though, still anticipate moderate to
locally heavy rainfall will be possible with widespread showers and
thunderstorms across the western zones, and more scattered
convection to the east Tuesday night into Wednesday. Rain chances
will slowly decrease Thursday into Friday as the closed low opens
and lifts the the northeast. As the disturbance lifts to the
northeast a cold front will move south across the state and into
south texas. The cold front is forecast to move into the region
Friday, though seeing some differences in the models between the
strength of the front and continued rain chances across the region
late into the weekend. Anticipate more of a northeast shift to the
winds and slight lowering of temperatures late in the week into
early next week. Lower dewpoints and less humid conditions late in
the period will also bring more seasonable conditions to the region.

High temperatures will gradually go from the upper 80s lower 90s to
the mid upper 80s, and lows from the lower 70s falling to the
lower mid 60s.

Preliminary point temps pops
Corpus christi 78 90 77 90 75 30 50 40 40 30
victoria 75 90 74 89 72 20 40 20 40 20
laredo 78 92 76 90 74 50 60 80 60 60
alice 76 92 75 90 73 30 50 40 50 30
rockport 79 89 78 90 77 20 40 30 40 20
cotulla 76 91 75 89 73 50 60 80 70 60
kingsville 76 92 76 90 74 30 50 40 40 30
navy corpus 80 89 79 89 79 20 40 30 40 20

Crp watches warnings advisories
Tx... None.

Gm... None.

Gh 77... Aviation


Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
TAQT2 - 8775296 - Texas State Aquarium, TX 6 mi43 min 85°F 84°F1008.7 hPa (-1.0)
NUET2 7 mi43 min SSE 11 G 14 83°F1009.4 hPa (-1.0)
PACT2 - 8775792 - Packery Channel, TX 13 mi43 min SE 14 G 18 85°F 83°F1009.7 hPa (-0.9)
MQTT2 - 8775870 - Malaquite Beach (Corpus Christi), TX 17 mi43 min ESE 14 G 16 84°F 84°F1009 hPa (-0.9)
IRDT2 19 mi43 min ESE 13 G 17 86°F 84°F1010 hPa (-0.9)
RTAT2 - 8775237 - Port Aransas, TX 21 mi43 min ESE 11 G 16 85°F 84°F1009.8 hPa (-1.0)
ANPT2 23 mi43 min E 14 G 16 83°F 85°F1008.8 hPa (-1.0)
BABT2 - 8776604 - Baffin Bay; Point of Rocks, TX 31 mi43 min ESE 14 G 17 84°F 84°F1009.4 hPa (-0.9)
CPNT2 34 mi43 min ESE 9.9 G 13 84°F 83°F
AWRT2 48 mi43 min ESE 12 G 14 85°F 84°F1010.2 hPa (-0.7)

Wind History for Nueces Bay, TX
(wind in knots)    EDIT      (on/off)   Help
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
Last
24hr
SE16
SE15
G19
SE15
G20
SE15
G20
SE16
G21
SE17
SE16
G20
SE16
SE16
G20
SE12
G17
SE13
G16
SE13
S10
S9
G13
S8
G11
S9
SE7
G10
SE9
SE7
SE10
SE13
G16
SE7
G10
SE11
G19
SE11
G14
1 day
ago
SE17
SE17
SE17
SE16
G20
SE16
G20
SE17
G21
SE18
SE15
G20
SE16
G20
SE15
G20
SE12
G18
S8
G12
S9
SE7
S9
S8
SE8
S7
SE6
SE10
SE7
SE12
G16
SE13
G16
SE14
G19
2 days
ago
SE13
G16
SE17
SE18
SE17
SE19
SE15
G21
SE17
G21
SE16
G21
SE15
SE15
G20
SE15
SE11
G17
SE9
SE10
SE9
S8
SE7
G10
SE7
SE8
S9
S6
G9
SE6
SE15
SE15

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Corpus Christi, Corpus Christi International Airport, TX3 mi52 minSE 15 G 2010.00 miPartly Cloudy87°F79°F77%1009.3 hPa
Corpus Christi, Corpus Christi Naval Air Station/Truax Field, TX9 mi47 minSE 1410.00 miMostly Cloudy90°F75°F63%1009.3 hPa
Robstown, Nueces County Airport, TX13 mi48 minSSE 13 G 2010.00 miPartly Cloudy91°F70°F50%1009.1 hPa

Wind History from CRP (wind in knots)
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
Last 24hrSE16E14
G20
E15SE14E14SE14SE14SE11SE11SE9SE9SE9SE7SE7SE5SE5SE6SE4SE5SE7S8SE14
G19
E11
G19
SE15
G20
1 day agoSE16E17
G23
E13E15E14E15E10E12E13SE13SE10SE6SE6SE7SE7SE5SE4E4SE4SE8SE9SE13SE11SE13
G21
2 days agoSE12SE15
G21
SE17
G21
SE17E16E17
G20
E17E13SE12SE9SE8SE8SE8SE6SE7SE6SE5SE3CalmE5E7E12E11E15

Tide / Current Tables for Nueces Bay, Texas
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Nueces Bay
Click for Map
Mon -- 07:19 AM CDT     Sunrise
Mon -- 09:17 AM CDT     0.29 feet High Tide
Mon -- 12:09 PM CDT     Moonrise
Mon -- 07:22 PM CDT     Sunset
Mon -- 09:35 PM CDT     0.10 feet Low Tide
Mon -- 11:15 PM CDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.10.20.20.20.20.20.30.30.30.30.30.30.30.30.20.20.20.20.10.10.10.10.10.1

Tide / Current Tables for Aransas Pass, Texas Current
   EDIT      (on/off)   Help   One Week of Data
Aransas Pass
Click for Map
Mon -- 04:18 AM CDT     -0.00 knots Slack
Mon -- 07:18 AM CDT     Sunrise
Mon -- 12:03 PM CDT     -0.96 knots Max Ebb
Mon -- 12:08 PM CDT     Moonrise
Mon -- 05:07 PM CDT     0.00 knots Slack
Mon -- 07:20 PM CDT     Sunset
Mon -- 09:23 PM CDT     1.08 knots Max Flood
Mon -- 11:14 PM CDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.60.50.40.20.1-0.1-0.2-0.3-0.4-0.6-0.8-0.9-1-0.9-0.7-0.5-0.3-00.30.60.91.11.11

Weather Map and Satellite Images
       (on/off)   Help
Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of SouthCentralPlains    EDIT
Geos

Wind Forecast for Corpus Christi, TX (14,3,4,5)
      (on/off)   Help

Ground Weather Radar Station Corpus Christi, TX
   (on/off)   Help
weather_mapweather_map weather_map

Gulf Stream Current


Ad by Google

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.