Saturday, March23, 2019 L-36.com


Marine Weather and Tides
Franklin, NC

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 7:28AMSunset 7:45PM Saturday March 23, 2019 10:48 AM EDT (14:48 UTC) Moonrise 9:57PMMoonset 8:28AM Illumination 93% Phase: Waning Gibbous; Moon at 17 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 Franklin, NC
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location: 35.1, -83.39     debug


Area Discussion for - Greenville-Spartanburg, SC
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Fxus62 kgsp 231447
afdgsp
area forecast discussion
national weather service greenville-spartanburg sc
1047 am edt Sat mar 23 2019

Synopsis
Cool and dry high pressure will move from over the great lakes to
off the carolina coast through the weekend, with a warming trend
expected through Monday. An area of low pressure will track across
our area early in the week, bringing the chance of rain and a few
thunderstorms, then dry high pressure returns for Wednesday.

Near term through tonight
Morning update... Very good insol is modifying a relatively cool llvl
airmass as cp hipres continues to build in from the northwest. Made
some minor upward adjs to hr ly temps and tweaked MAX temps up a
degree or so. Still expect high temps right arnd normal with rh
values dropping into the teens this afternoon. The fire danger
statement for NE ga this afternoon looks good.

As of 640 am edt: gusty winds continue to linger in the high
elevations above about 5000 ft, but will continue weaken thru the
morning hours. Otherwise, it should be a quiet and pleasant day
today. The center of a modest, dry high pressure system will build
into the region under a passing shortwave ridge today. This will
result in sunny skies (save for a few thin wisps of cirrus) and much
lighter winds than we had yesterday. Temps will be similar to
yesterday's readings (perhaps a category or so cooler in the
piedmont and a category warmer in the mountains). Dewpts will still
manage to mix out a bit, despite the light winds and aftn rh will be
a concern for fire wx (see fire wx section below).

Tonight, a progressive closed upper low will cross the central
plains, as axis of downstream ridge shifts east of the forecast
area. This will allow for a gradual increase in high clouds, but
overall, it still should be mostly clear. Meanwhile, the center of
sfc high pres will settle right over the area, resulting in a quiet
night with temps dipping slightly below normal.

Short term Sunday through Monday night
As of 245 am edt Saturday: the short term will begin with a
deamplifying ridge over the east coast, a surface high off the
carolina coast, and a shortwave working through the plains dragging
a cold front across the ms valley. Moist WAA in the southerly flow
around the surface high will lead to increasing temperatures Sunday
afternoon, with high cloud streaming in ahead of the approaching
system. Some light showery activity could make it to the mountains
Sunday evening, slowly increasing overnight. The plains system will
weaken as it dips southeast, becoming an open wave rather than a
closed low, with the surface front working southeast through the day
on Monday. Marked lack of dynamics with the upper system, and deep-
layer shear is minimal at best, though continued airmass recovery in
the warm sector will lead to low-end CAPE values, generally ~500j kg
and lower. Without any shear to work with, the generic lightning
threat is the only one of concern. QPF through the event should be
relatively light (maybe upwards of 0.5" in the mountains). The bulk
of the precip will move out Monday evening, but developing upslope
in the mountains overnight Monday night as the front dips to the
south may allow for some lingering shower activity, with possibly
some brief snow mixing in at the higher elevations overnight.

Long term Tuesday through Friday
As of 315 am edt Saturday: behind the short-term front, a cool
canadian high pressure will move east across the great lakes,
damming at least briefly down the eastern slopes of the
appalachians. The low-level CAA will be felt with the 10+ degree
drop in high temperatures from Monday into Tuesday. A reinforcing
shortwave behind the front will keep troughiness over the area
through Wednesday with only slightly warmer temperatures, but broad
ridging building in over the plains mid-week will shift east through
the end of the period with an associated warming trend. Another
front looks to approach toward the end of the period, but only
advertised low-end pops given timing strength differences in model
guidance.

Aviation 15z Saturday through Wednesday
At kclt and elsewhere:VFR with light winds thru the period, as
the center of sfc high settles over the area. Skc during the day,
with some increase in high clouds expected this evening, as the next
system approaches from the west.

Outlook: a relatively moist low pressure system will bring
precipitation and potential flight restrictions mainly Monday and
Tuesday. Dry wx returns Wednesday.

Confidence table...

14-20z 20-02z 02-08z 08-12z
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 100%
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
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Macon County Airport, NC9 mi69 minN 010.00 miFair41°F34°F76%1025.7 hPa

Wind History from 1A5 (wind in knots)
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Last 24hrW4
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NW7NW4NW4NW5NW5CalmCalmCalmCalmCalmCalm
1 day agoCalmCalmNW5N11
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2 days agoCalmCalmN4S3W3CalmN3S3CalmSE3CalmE3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalm

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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wmap_A
GOES Local Image of    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Greenville-Spartanburg, SC (10,2,3,4)
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Ground Weather Radar Station Greer, SC
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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.