Tuesday, November21, 2017 L-36.com


Marine Weather and Tides
Ironton, OH

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 5:14PM Tuesday November 21, 2017 7:05 AM EST (12:05 UTC) Moonrise 9:51AMMoonset 7:55PM Illumination 8% Phase: Waxing Crescent; Moon at 3 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 Ironton, OH
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location: 38.57, -82.66     debug


Area Discussion for - Charleston WV
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Fxus61 krlx 211130
afdrlx
area forecast discussion
national weather service charleston wv
630 am est Tue nov 21 2017

Synopsis
Southwest flow today brings milder afternoon. Cold front
crosses tonight. High pressure Wednesday through thanksgiving
and Friday. Cold front crosses Saturday. High pressure Monday.

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

the atmosphere has become mixed, with increasing winds and
rising temperatures over the middle ohio valley, while the
valleys in and near the central appalachians remained decoupled.

As of 300 am Tuesday...

after a chilly start, a south to southwest flow around the back
side of high pressure moving off the east coast, brings about a
milder afternoon today. It also brings low level moisture
northward into the central appalachians, resulting in an
increase in cloud cover there late this afternoon and evening.

A northern stream short wave trough drives a surface cold front
through the area late tonight. This brings an increase in
clouds throughout the area tonight, along with the chance for
rain showers across northern portions of the area, where mid
level forcing associated with the front is strongest. Southern
portions of the area are left on the anticyclonic shear side of
the jet stream, and remain mainly dry.

The rain showers will transition to snow showers in the northern
wv mountains early Wednesday morning, as the colder air moves in
behind the front, although the -8 to -9 c at the top of the
moist layer near h85 is marginal for the presence of ice
crystals in cloud. Either way, little if any accumulation is
expected through 12z Wednesday, as temperatures will be just
getting below freezing over the very highest ridges by then.

Stayed away from the high mav on highs today, the previous
forecast close to the latest met and short term consensus
guidance, which was also used for hourly temperatures tonight,
with the crossing cold front.

Short term Wednesday through Friday
As of 300 am Tuesday...

light rain and snow showers will taper off as the morning
progresses on Wednesday, with no additional accumulations
expected. High pressure, with cooler, but dry weather will take
hold for thanksgiving day and Friday, with temperatures topping
out in the 40s to 50s.

Long term Friday night through Monday
As of 300 am Tuesday...

another progressive system will affect the region late Friday night
into the weekend. Rain and snow showers are expected to develop,
particularly across the north, as a cold front sweeps across the
region. After a brief lull in the precipitation later in the day
Saturday, outside of upslope rain and snow showers across the
mountains, a reinforcing short wave will bring another round of
precipitation for Sunday, along with an additional shot of cooler
air. Light accumulations are expected across the mountainous
counties.

Aviation 11z Tuesday through Saturday
As of 630 am Tuesday...

vfr today with cirrus the dominant cloud type, with additional
few030 morning CU developing during mixing of the boundary layer.

Low level moisture will be drawn up across the central
appalachians from the south, out ahead of a cold front
approaching from the northwest. This could bring MVFR ceilings
to the mountains tonight, starting around 00z bkw and then
around 06z ekn. Elsewhere, higher sct-bkn stratocu is expected
tonight, as the cold front moves into the middle ohio valley. A
light rain shower is possible in east central ohio, and into
northern wv, late tonight.

As the front crosses overnight, a period of MVFR stratocu is
likely most if not all sites. Timing of the front ranges from
around 08z along the ohio river to around 11z in the wv
mountains.

Light south to southeast surface flow early this morning, will
increase and become south to southwest on today, with wind
gusts to around 20 kts possible during mixing from afternoon
heating. These southwest winds will diminish this evening, and
then turn light northwest behind the cold front late overnight
tonight. Flow aloft will be moderate southwest, switching to
moderate west to northwest behind the front late overnight
tonight.

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

forecast confidence: high.

Alternate scenarios: timing and extent of MVFR stratocu could
vary late today and tonight. Bkw and ekn ceilings could drop to
near ifr overnight.

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 Tue 11 21 17
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 h h h h h h h h m m m m
hts consistency h h h h h h h h h h m m
bkw consistency h h h h h h h h h h m l
ekn consistency h h h h h h h h h h m m
pkb consistency h h h h h h h h h h m m
ckb consistency h h h h h h h h h h m m
after 12z Wednesday...

no widespread ifr conditions expected.

Rlx watches warnings advisories
Wv... None.

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, WV14 mi75 minSSW 410.00 miFair37°F19°F50%1017.5 hPa

Wind History from HTS (wind in knots)
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Last 24hrS3SW4SW4SW64S8SW7S9S10S6S3SE4SE4E4E4CalmSE3SE4S3S4S5S4S5SW4
1 day agoW10
G17
W9
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W8W10
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G14
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SW7W8W10
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W7W11SW6W9SW6SW7SW7SW4SW4SW4S4S3Calm
2 days ago--S11SW11
G16
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G21
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SW10
G21
W13
G35
W10
G26
W11
G23
NW10
G19
W5W10
G19
W8
G16
W5

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 Mid-Atlantic    EDIT
Geos

Wind Forecast for Charleston WV (7,2,3,4)
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Ground Weather Radar Station Charleston, WV
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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.