Sunday, August20, 2017 L-36.com


Marine Weather and Tides
Farragut, TN

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 6:58AMSunset 8:20PM Sunday August 20, 2017 3:52 AM EDT (07:52 UTC) Moonrise 4:38AMMoonset 6:42PM Illumination 4% Phase: Waning Crescent; Moon at 28 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 Farragut, TN
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location: 35.86, -84.15     debug


Area Discussion for - Morristown, TN
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Fxus64 kmrx 200722
afdmrx
area forecast discussion
national weather service morristown tn
322 am edt Sun aug 20 2017

Short term (today and tonight) Main concern early this morning
and early Monday morning will be patchy fog, some locally dense,
near area lakes and streams due to steam fog development.

Upper and surface ridging will be the rule for today and tonight.

Forecast soundings show a fairly strong mid-level inversion which
will essentially cap convection from developing today. A fairly
hot day is in store with a warming temperature profile.

Long term
We should start the week hot and mostly dry. On Monday (eclipse
day), a strong 500mb ridge will expand with heights expected to be
around 594-596 dm which is near the 97th-99th percentile compared
to climatology for this time of year. Subsidence aloft will act
to dry the air column and limit clouds and convection. Cannot rule
out about 10 percent pops around the higher terrain where
differential heating will create a valley-mountain circulation
with rising air across the higher elevations and sinking air
across the tennessee valley. Models is good agreement tonight with
only very limited convection anticipated across the higher
terrain features. Effective deep layer shear is very weak around
10 kts or less which means any ordinary convective development
would not be well maintained and would dissipate quickly.

The total solar eclipse will have some unique impacts on our diurnal
weather on Monday. Decreasing incoming solar radiation during the
mid-afternoon as the eclipse reaches its MAX for our area between
17z-20z will have several effects. Hourly temperatures are expected
to drop 2-8 degrees during maximum eclipse with the greatest drop in
temperatures occurring within the path of totality. High
temperatures expected to be slightly cooler by a degree or two as
well. With near surface temperature reductions, may actually start
to see a boundary layer profile similar to evenings near the path of
totality where a stable or neutral thermal layer forms near the
surface. This would likely further limit convection and cumulus
development during the hours around the eclipse, especially near the
path of totality. Even for local winds, may see some brief mesoscale
wind patterns due to the total solar eclipse where a weak divergent
flow occurs near the path of totality.

Overall, it is still looking like good viewing conditions for the
area with mostly clear skies across the valley and additional
cumulus partly cloud skies across the higher terrain. At this point,
only few, to at most scattered, cirrus would be expected. After the
eclipse has ended on Monday afternoon, temperatures will quickly
rebound with highs in the upper 80s to lower 90s. Heat index values
will be in the 90-95 degree range on Monday afternoon. With the hot
and sunny weather, it's important for anyone spending a lot of time
outdoors on Monday to stay hydrated, find shade, and use sunscreen
because of very high uv index values of 8-10 around midday before
the solar eclipse even begins.

The ridge breaks down on Tuesday as an upper-level trough
approaches. Model solutions in good agreement with a cold front
moving through the area on Wednesday with increasing pops late
Tuesday night and likely pops on Wednesday. May have a few lingering
showers across the mountains on Thursday before high pressure builds
in late week with dry weather expected. With troughing in place,
expect cooler, below normal temperatures late next week behind the
cold front.

Preliminary point temps pops
Chattanooga airport, tn 93 73 92 73 0 0 10 10
knoxville mcghee tyson airport, tn 90 70 89 71 0 0 10 10
oak ridge, tn 91 71 91 71 0 0 10 0
tri cities airport, tn 89 65 89 66 10 10 10 10

Mrx watches warnings advisories
Nc... None.

Tn... None.

Va... None.



Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Knoxville, McGhee Tyson Airport, TN10 mi59 minENE 310.00 miFair68°F64°F90%1016.2 hPa
Oak Ridge, TN12 mi59 minN 010.00 miFair70°F66°F90%1016.3 hPa

Wind History from TYS (wind in knots)
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Last 24hrCalmCalmE3CalmNW4CalmCalmCalm54Calm35CalmNW4W3CalmCalmCalmCalmCalmCalmCalmNE3
1 day agoSW7SW10SW7SW7SW8SW9W10SW7SW10SW8W8W10SW9W9W6W6W8W5NW4CalmCalmCalmCalmCalm
2 days agoW3S3CalmCalmCalmSW4S6S11SW8SW10SW10SW12
G22
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W6SW6SW6S6SW7SW8S6SW7SW6SW8

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 Southeast    EDIT
Geos

Wind Forecast for Morristown, TN (3,6,7,8)
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Ground Weather Radar Station Knoxville/Tri Cities, TN
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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.