Tuesday, September17, 2019 L-36.com


Marine Weather and Tides
Dawsonville, GA

Version 3.4
NOTICE
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 7:18AMSunset 7:41PM Tuesday September 17, 2019 12:25 AM EDT (04:25 UTC) Moonrise 8:51PMMoonset 9:18AM Illumination 91% Phase: Waning Gibbous; Moon at 18 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 Dawsonville, GA
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location: 34.43, -84.12     debug


Area Discussion for - Peachtree City, GA
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Fxus62 kffc 162322 aaa
afdffc
area forecast discussion... Updated
national weather service peachtree city ga
720 pm edt Mon sep 16 2019

00z aviation forecast discussion...

Short term tonight through Tuesday night
Hot and dry conditions will persist through Tuesday night as the
area remains locked under the influence of the persistent upper
ridge centered over the mid-south. A very weak surface front will
dip southward into north georgia and wash out on Tuesday.

Unfortunately, this will bring no sensible weather changes.

Temperatures will again soar into the mid to upper 90s areawide
outside of the mountain elevations.

More noticeable changes lie ahead just outside of the short-term
forecast period. A wedge front will be approaching the area from the
northeast by Wednesday morning with the promise of at least
marginally cooler air in the long-term forecast period.

Rw
records for 09-17
max temperature min temperature
station high low high low
------- ---------- ---------- ---------- ----------
kahn 101 1931 64 1946 72 1957 49 2001
1927 1985
katl 97 1927 60 1946 75 1991 52 1961
1927
kcsg 104 1927 66 1979 76 1927 53 1961
kmcn 98 2018 64 1946 73 1980 49 2001
1972 1971
1925 1957

Long term Wednesday through Monday
Still no significant weather concerns and dry weather seen with 12z
guidance in the long term period.

High amplitude pattern to remain in place thru Friday with deepening
trough in the western conus, positively-tilted upper ridge over the
mid-south, and upper troughing along the east coast. With strong
subsidence over new england and mid-atlantic states wed-thurs, sfc
high pressure will build in from the NE into georgia on Wed and
drier air Wed night. Temps, especially at night, will be much cooler
than we've seen last several days. Could be a few showers and
possibly some storms on Wed afternoon as wedge front moves in, but
coverage should be low. Current SPC day 3 outlook currently has no
thunder. 4km NAM nest does show potential for a ribbon of higher
mlcape over 1000 j kg, but any strong convection remains just to our
south. Low clouds may inhibit sfc heating and sbcape. Will keep
slight chance tsra in forecast for Wed but less concerned about
anything strong or severe.

No chance for precip for the rest of the period as upper ridge
slides very slowly south. Westerlies shouldn't push close enough to
nw georgia for any chance of clouds or precip until Sunday. And
while the westerlies approach, S to SW low level flow will warm
temps back up to the 90s starting Sunday. Great.

Snelson

Aviation
00z update...

vfr conditions are expected to predominate across the forecast area
through the majority of the forecast period. Local MVFR or lower
visibilities are possible 06z-14z. May see some brief impacts at the
kahn TAF site, however no impacts expected at the other TAF sites.

Winds will be generally light, 5kt or less, from the northwest to
northeast, increasing to 6-10kt from the northwest after 14z.

Atl confidence... 00z update...

high.

20

Preliminary point temps pops
Athens 67 95 70 83 0 10 10 20
atlanta 73 95 73 89 0 10 10 10
blairsville 62 87 64 79 5 10 10 20
cartersville 67 96 70 90 0 10 10 10
columbus 71 99 73 95 0 5 5 10
gainesville 69 93 70 83 0 10 10 20
macon 68 97 72 91 0 5 5 20
rome 68 96 69 91 0 5 5 10
peachtree city 68 96 71 91 0 10 10 10
vidalia 70 97 73 89 0 0 5 20

Ffc watches warnings advisories
None.

Short term... Rw
long term... .Snelson
aviation... Rw


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Gainesville, Gilmer Memorial Airport, GA19 mi92 minWNW 310.00 miFair78°F64°F64%1016.1 hPa

Link to 5 minute data for KGVL

Wind History from GVL (wind in knots)
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Last 24hrNE3CalmCalmCalmCalmN3CalmN3Calm3E3NW8NE5NE8N5CalmN7S3CalmCalmSW3CalmW3Calm
1 day agoNE5NE6NE4CalmN5N3CalmCalmCalmNE334N4CalmCalmE6E4E4SE5SE5SE3CalmN3Calm
2 days agoNE9E8E10NE4NE7E6NE5E7E6E8E7E6E6SE6E7
G16
SE6NE5N8NE5NE8E8NE4NE4NE3

Tide / Current Tables for
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Tide / Current Tables for
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Weather Map
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wmap_A
GEOS 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

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Wind Forecast for Peachtree City, GA (0,6,7,8)
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Ground Weather Radar Station Atlanta, GA
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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.