Tuesday, September26, 2017 L-36.com


Marine Weather and Tides
Franklin, NC

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 7:20AMSunset 7:21PM Tuesday September 26, 2017 7:09 AM EDT (11:09 UTC) Moonrise 12:17PMMoonset 10:46PM Illumination 33% Phase: Waxing Crescent; Moon at 6 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
7 Day Forecast for Marine Location Near Franklin, NC
   Hourly   EDIT   Help
location: 35.1, -83.39     debug


Area Discussion for - Greenville-Spartanburg, SC
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus62 kgsp 261050
afdgsp
area forecast discussion
national weather service greenville-spartanburg sc
650 am edt Tue sep 26 2017

Synopsis
Dry and warm high pressure will remain across the region through the
middle of week... While hurricane maria is forecast to remain off the
east coast. A fairly dry cold front will cross the area Thursday
while pushing maria out to sea. A secondary cold front crosses
Friday night bringing much cooler and drier air for the weekend into
early next week.

Near term through tonight
As of 645 am: patchy fog low stratus will lift scatter within the
mtn valleys by late morning. Otherwise, stagnant weather pattern
will persist through the near term, as upper ridging continues to
yield subsidence weak mid-level lapse rates, while low level ridging
and the broad pressure pattern around hurricane maria supports a
relatively dry N NE flow. However, surface dewpoints are expected to
be sufficiently high to support some weak shallow buoyancy this
afternoon. This should allow for a healthy CU field across much of
the area, and we would not be surprised to see a brief shower or two
pop across the high terrain this afternoon, but not enough to
warrant a mentionable pop. Meanwhile, cirrus outflow circulating
around maria is expected to shift east of the forecast area today,
while thicknesses should see a slight increase. This should spell an
across-the-board increase of 1-2 degrees above yesterday's max
temps, with mid upper 80s expected across all of the foothills and
piedmont, and lower mid 80s in the mountain valleys. Min temps
tonight will remain 5-8 degrees above climo in most locations.

Short term Wednesday through Thursday night
As of 250 am edt Tuesday: the fa will remain quite dry and warm thru
the short range period. Ulvl ridging will be enhanced somewhat by
the departing TC maria which will make for a convectively
suppressive atmos. The 00z guidance has actually come in drier for
thu evening night and this trend was applied to the grids as the
pre-frontal upstream moisture looks very shallow... Not to mention
highly uncertain as to how much will make across the tn nc spine.

Well above normal temps looks pretty certain however as soundings
show very good insol conds with perhaps just few sct fair-wx CU wed
and a little more cloud coverage across the nc mtns Thu afternoon.

Expect MAX temps pushing 90 f both days across the non mtns and low
to mid 80s mtn valleys. Mins will be remain about 10 degrees abv
normal Wed night and a few degrees cooler Thu night as drier cooler
air begins to work in from the nw.

Long term Friday through Monday
As of 310 am edt Tuesday: no sigfnt changes were made to the going
fcst. The op models and ensembles agree well with the synoptic
pattern evolution which features a cold front crossing the fa fri
then strong cp high pressure building south over the midwest. Not
expecting much fanfare in our area ahead of the FROPA late fri. Very
little to no ulvl dynamic support will be had and the llvl wind
fields are non conducive for moist flux or mech lift. Believe the nc
mtns will see the best chance of -shra during the afternoon which
will be short-lived pulse type and thermally driven in nature.

Other than that... The sensible wx fcst will focus on temps and
dewpoints thru the period. With the first real cp airmass of the
season... Noticeably cooler air will move in Fri and become reinforced
over the weekend as the canadian high centers east and ridges into
the fa. Expect MAX temps held 5-8 degrees below normal. Dewpoints
will also drop off sigfnt ly with values ranging in the mid 50s fri
to the m40s by sun. Thus... Very pleasant conds are in store fri-sun.

A strong dry-onset wedge develops Mon and some measure of moist E ly
flow will adv into the area. This combo of llft moisture will likely
result in more cloudiness and a perhaps a shot of some low-end
precip across the SRN escarpment. Most areas should remain dry
however.

Aviation 12z Tuesday through Saturday
At kclt and elsewhere:VFR is forecast through the next 24 hours at
the main TAF sites. Some fog low stratus has formed in the french
broad valley up and down-valley of kavl, but it now appears unlikely
to impact the terminal this morning. Otherwise, an area of ifr low
MVFR stratocu will make a run toward the western nc piedmont this
morning, but it should stall scatter lift before reaching kclt. Ne
winds will increase to around 10 kts at most terminals this morning,
then diminish again this evening. Sct cumulus in the 040-050 range
expected to develop this afternoon near kclt, possibly expanding as
stratocu and lingering through the evening.

Outlook: dry conditions are expected most of the week. Under mostly
clear skies and calm conditions, fog and or low stratus are possible
in the mountain river valleys each of the next few mornings. A
mostly dry cold front will cross the region late in the week.

Confidence table...

10-16z 16-22z 22-04z 04-06z
kclt high 100% high 100% high 100% high 100%
kgsp high 100% high 100% high 100% high 100%
kavl high 100% high 100% high 100% high 91%
khky high 100% high 100% high 100% high 100%
kgmu high 100% high 100% high 100% high 100%
kand high 100% high 100% high 100% high 100%
the percentage reflects the number of guidance members agreeing
with the scheduled TAF issuance flight rule category. Complete hourly
experimental aviation forecast consistency tables and ensemble forecasts
are available at the following link:


Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Macon County Airport, NC9 mi85 minN 00.25 miFog58°F56°F96%1018.3 hPa

Wind History from 1A5 (wind in knots)
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
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
Last 24hrCalmCalmCalmCalmCalmCalmCalmCalmN5N3NW4NW3SW5CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalm
1 day agoCalmCalmCalmCalmCalmCalmCalmCalmS4CalmSW3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalm
2 days agoW3CalmCalmCalmCalmCalmW3W4NE5E4SW3SW3CalmNE3CalmCalmCalmCalmCalmCalmCalmCalmCalmW3

Tide / Current Tables for
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help
Tide / Current Tables for
   EDIT      (on/off)   Help
Weather Map and Satellite Images
       (on/off)   Help
Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of Southeast    EDIT
Geos

Wind Forecast for Greenville-Spartanburg, SC (7,2,3,4)
      (on/off)   Help

Ground Weather Radar Station Greer, SC
   (on/off)   Help
weather_mapweather_map weather_map

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.