Wednesday, March29, 2017 L-36.com


Marine Weather and Tides
Nacogdoches, 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 7:08AMSunset 7:37PM Wednesday March 29, 2017 4:12 AM CDT (09:12 UTC) Moonrise 7:26AMMoonset 8:34PM Illumination 4% Phase: Waxing Crescent; Moon at 2 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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7 Day Forecast for Marine Location Near Nacogdoches, TX
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location: 31.61, -94.65     debug


Area Discussion for - Shreveport, LA
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Fxus64 kshv 290503
afdshv
area forecast discussion
national weather service shreveport la
1203 am cdt Wed mar 29 2017

Discussion
Little change to the 06z TAF package from the 00z TAF package. Ir
imagery late this evening showing a mixture of lowVFR and MVFR
ceilings across most of NE tx with this cloud cover pushing north
and east. This cloud cover should encompass most if not all our
terminal locations near or just prior to sunrise. Regional radar
mosaics showing a broken line of showers and thunderstorms along a
wichita falls, comanche to near hondo texas with this line moving
generally eastward near 40kts. This line of convection may slow
down as it moves eastward overnight but did add vcts to the tyr
terminal as early as 10z and to the ggg terminal as early as 12z.

Otherwise, thinking is that this line of convection will continue
weakening in coverage and intensity before and after sunrise wed
morning with convection re-firing near and especially to the east
of a hot springs, shreveport, to lufkin line late Wed aftn and
steadily push eastward during the evening and overnight hours on
wed.

13

Prev discussion /issued 954 pm cdt Tue mar 28 2017/
discussion...

will make no changes to the forecast this evening. Lower clouds
will be spreading north into the region with skies becoming mostly
cloudy. Could see some rain development over parts of northeast
texas into southeast oklahoma and southwest arkansas where surface
boundary resides. /06/
prev discussion... /issued 619 pm cdt Tue mar 28 2017/
aviation...

vfr conditions late this evening should continue through the next
6 hours or so before we begin to see stratus developing/moving
northward from the SE tx/s la coast and effecting our terminal
airspace overnight. Believe this will come in as mostly MVFR
ceilings with heights near 1-2kft but will need to watch for some
ifr ceilings briefly late tonight through the early morning hours
on wed. Pressure gradient will remain strong but with a developing
inversion overnight, we should see winds decouple slightly. Strong
sse winds will return with earnest on Wed with gusts upwards of
25kts possible across all but the mlu/eld terminals.

Convection will be moving our way overnight in the form of a
broken line of strong to severe thunderstorms but should begin to
weaken in coverage and intensity to our west and northwest near or
just after 12z wed. Made mention of tempo tsra at the tyr/ggg
terminals for the morning hours on Wed just in case this
convection moving our way stays in tact. Otherwise, we await on
daytime heating and reorganization of strong to severe
thunderstorms by late afternoon into the evening hours mainly
along and east of a line from the lfk/shv/txk terminal eastward in
the 21z-00z period and advancing eastward towards the eld/mlu
terminals just beyond this TAF cycle.

/13/

Preliminary point temps/pops
Shv 67 82 63 75 / 20 60 80 30
mlu 65 85 66 78 / 20 20 90 70
deq 63 75 56 68 / 50 80 60 40
txk 65 78 60 71 / 40 70 80 40
eld 63 82 63 76 / 20 40 90 60
tyr 68 78 57 70 / 60 80 40 20
ggg 68 78 60 72 / 40 70 70 30
lfk 69 80 62 76 / 20 70 70 20

Shv watches/warnings/advisories
Ar... Lake wind advisory from 10 am to 7 pm cdt Wednesday for arz070-
071.

La... Lake wind advisory from 10 am to 7 pm cdt Wednesday for laz001-
002-010.

Ok... None.

Tx... Lake wind advisory from 10 am to 7 pm cdt Wednesday for txz096-
097-108>112-124>126-136>138-149>153-165.

06/13


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Nacogdoches, A L Mangham Jr. Regional Airport, TX4 mi18 minS 8 miOvercast72°F64°F78%1006.8 hPa

Wind History from OCH (wind in knots)
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Last 24hrSE4CalmSE4SE6S6SE6SE7SE8S9S10SE11
G17
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G16
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1 day agoS10S8S5S5S6SW7SW9
G16
SW7SW7SW5SW8SW5W6W7SW3CalmCalmCalmS3S5S6S5SE3SE4
2 days agoCalmCalmCalmCalmCalmSE4SE4S9S8
G14
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G17
SE12
G17
SE8
G18
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G19
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G21
S16
G24
S10
G15
S10
G18
S9S8
G15
S11S11
G15
S9S9S7

Tide / Current Tables for
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Tide / Current Tables for
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Weather Map and Satellite Images
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Weather Map
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IR Satellite Image from GEOS
east_satellite

GOES Local Image of SouthCentralPlains    EDIT
Geos

Wind Forecast for Shreveport, LA (5,6,7,8)
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Ground Weather Radar Station Shreveport, LA
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weather_mapweather_map weather_map

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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.