Thursday, January18, 2018 L-36.com


Marine Weather and Tides
Lavalette, WV

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 7:42AMSunset 5:38PM Thursday January 18, 2018 8:42 AM EST (13:42 UTC) Moonrise 8:40AMMoonset 7:15PM Illumination 3% 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 Lavalette, WV
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location: 38.3, -82.39     debug


Area Discussion for - Charleston WV
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Fxus61 krlx 181131
afdrlx
area forecast discussion
national weather service charleston wv
631 am est Thu jan 18 2018

Synopsis
With high pressure passing south of the area, a southwest flow
will bring milder air today through the weekend, with a warm
front passing Saturday. A cold front crosses late Monday.

Near term through tonight
As of 630 am Thursday...

delayed clearing in the mountains until the low level moisture
mixes out and the upslope component of flow diminishes later
this morning.

As of 350 am Thursday...

arctic air mass, represented by high pressure over the
southeastern states, modifies as that high drifts slowly
eastward during the near term period, and beyond. In the
meantime, a southwest flow of milder air had already become
established over the forecast area, with rising temperatures
over the hill and ridgetops early this morning.

The stratocu in and near the mountains will be eradicated this
morning, as the moisture mixes out, and the westerly flow there
backs, diminishing the upslope component. The remainder of the
forecast is dry with a mainly clear sky, with a dry column,
even as upper level ridging gives way to a short wave trough
passing by to the north of the area tonight.

Temperatures do rise slowly today overtop the snow cover and
beneath a low inversion, with wind chills rising above the -10f
advisory threshold by 10 am. Leaned on the lower side of
guidance, with highs just making it above freezing across the
southern lowlands this afternoon. It will be noticeably less
cold compared with one of the coldest days of the winter
Wednesday.

Lows tonight close to the met, except lower in the valleys, but
not quite as low as the mav. The persistent pressure gradient
will make for only somewhat of a ridge valley split tonight,
as even the valleys are not likely to stay decoupled through the
night. Lows generally in the teens, compared with the widepsread
single digits of early this morning, reflect the ongoing
retreat of the arctic air.

Short term Friday through Sunday night
As of 350 am Thursday...

warm and mostly dry during the short term period with high pressure
in control. A warm frontal boundary associated with low pressure
moving northeast out of the plains will lift north across the area
late Saturday night into Sunday, with light showers forming as it
does so.

Long term Monday through Wednesday
As of 350 am Thursday...

cold front associated with aforementioned low will sweep across the
forecast area on Monday, with rain developing area wide. Good
moisture fetch associated with system, with pw values progged to
rise to around an inch, will result in decent rain totals, with qpf
values around 0.75 inches or more area wide. Any lingering
precipitation will change over to light rain and snow showers Monday
night, continuing into Tuesday, with light accumulations possible.

Wednesday looks to be dry with more seasonal temperatures.

Aviation 11z Thursday through Monday
As of 630 am Thursday...

MVFR to ifr stratocu in the mountains will mix out later this
morning, and the last of the snow flakes will go with it.

Otherwise arctic high pressure passing south of the area will
then bringVFR weather, a with mainly clear sky.

Light southwest surface flow, west to northwest on the ridges,
will strengthen and become a bit gusty today, before becoming
light again tonight. Flow aloft will be moderate northwest into
tonight, and then become moderate west overnight.

Forecast confidence and alternate scenarios through 12z Friday...

forecast confidence: medium to high.

Alternate scenarios: timing of MVFR ifr stratocu dissipation may
vary this morning. Wind directions and gusts will fluctuate
this afternoon.

Experimental table of flight category objectively shows consistency
of WFO forecast to available model information:
h = high: TAF consistent with all models or all but one model.

M = medium: TAF has varying level of consistency with models.

L = low: TAF inconsistent with all models or all but one model.

Date Thu 01 18 18
utc 1hrly 10 11 12 13 14 15 16 17 18 19 20 21
est 1hrly 05 06 07 08 09 10 11 12 13 14 15 16
crw consistency m m m h h h h h h h m m
hts consistency h h h h h h h h h h m m
bkw consistency m h m h h h h h h h m m
ekn consistency l l l h h h h h h h m m
pkb consistency h h l h h h h h h h m m
ckb consistency m m m m h h h h h h m m
after 12z Friday...

none.

Rlx watches warnings advisories
Wv... Wind chill advisory until 9 am est this morning for wvz520-
522>526.

Oh... None.

Ky... None.

Va... None.

Synopsis... Trm sl
near term... Trm
short term... Sl
long term... Sl
aviation... Trm


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Huntington, Tri-State Airport, WV10 mi52 minSSW 710.00 miFair8°F3°F80%1032 hPa

Wind History from HTS (wind in knots)
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Last 24hrS3W344W653S4S3S3S3S3S4SW4SW4SW4SW4S3S5SW6S5SW5S8S7
1 day agoNW6NW8NW6NW6NW8NW6NW6W4W4NW6NW5NW5W4W4W5SW4SW3SW4SW3SW3CalmCalmCalmSW3
2 days agoSE3E4S4SW4S7S8S7S7S6SW6SW5W6W5NW4W7CalmW9CalmW3NW5CalmW4NW10NW7

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
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of Mid-Atlantic    EDIT
Geos

Wind Forecast for Charleston WV (8,2,3,4)
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Ground Weather Radar Station Charleston, WV
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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.