Sunday, January21, 2018 L-36.com


Marine Weather and Tides
Flowery Branch, GA

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 7:37AMSunset 5:57PM Sunday January 21, 2018 7:52 AM EST (12:52 UTC) Moonrise 10:25AMMoonset 10:18PM Illumination 23% Phase: Waxing Crescent; Moon at 5 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 Flowery Branch, GA
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location: 34.19, -83.92     debug


Area Discussion for - Peachtree City, GA
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Fxus62 kffc 211147
afdffc
area forecast discussion
national weather service peachtree city ga
647 am est Sun jan 21 2018

Prev discussion issued 258 am est Sun jan 21 2018
short term today through Monday ...

an upper level low pressure system will traverse the region today,
with minimal impact other than increased clouds. At the surface,
high pressure settling over the area will result in
southerly southeasterly flow, which will continue to allow for
warmer temperatures. Highs today are expected to top off in the 60s
to near 70. Lows overnight will only drop into the 40s.

Near the end of the short term, a cold front will approach the state
Monday evening, and have continued likely pops and slight chance of
thunder through the remainder of the period. Temperatures will
remain the 60s to low 70s Monday, and instability should be enough
to support isolated thunderstorms. At this time, models are only
indicating a few hundred CAPE as the front moves into the state
Monday evening, with instability dropping off into the overnight
period.

31
long term Monday night through Saturday ...

models continue in pretty good general agreement through the short
term with some minor timing differences in next weekends system.

Early in the long term, a cold front will move across the cwa
Monday night. Areas of showers and isolated thunderstorms will
continue ahead of the front with the better chances across north
georgia where the deeper moisture will be. By Tuesday morning the
cold front will be in the carolinas with drier air spread across
the cwa. This dry air will continue across the CWA through
Friday. An h5 ridge will build over the eastern u.S. During the
latter half of the upcoming week, and by Saturday this ridge will
be to our east with southwest flow over the CWA by Friday night
and Saturday. At the surface the strong high pressure will be
ridging into the CWA Friday and Saturday with a cool easterly
flow. Another storm system will be developing over the midwest and
lower mississippi valley and this will spread moisture into the
cwa Friday night into Saturday. This will create an overrunning
situation with mainly light rain drizzle developing Friday night
and Saturday over mainly north georgia. Temperatures through the
long term will be near normal.

17

Aviation
12z update...

vfr conditions expected today, with few-sct 5-7kft this afternoon,
followed by high clouds. Expect MVFR conditions to accompany
front as it moves through the state Monday, and have indicated
ovc015 for after 14z at katl. Light westerly surface winds will
shift to the sse this afternoon, generally between 18-21z. Speeds
will be 5-7kt through the day, then nearly calm overnight, and
then 6-9kt mid morning Monday.

Atl confidence... 12z update...

medium on timing of wind shift.

High on all other elements.

31

Preliminary point temps pops
Athens 67 43 63 46 0 0 50 60
atlanta 65 46 63 44 0 0 50 60
blairsville 62 41 57 38 0 0 80 80
cartersville 65 45 63 41 0 0 60 60
columbus 68 47 69 47 0 0 40 60
gainesville 64 44 60 43 0 0 60 70
macon 68 44 69 51 0 0 30 40
rome 66 44 63 41 0 5 70 60
peachtree city 66 44 65 44 0 0 50 60
vidalia 68 46 72 57 0 5 20 40

Ffc watches warnings advisories
None.

Short term... 31
long term... .17
aviation... 31


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CHDS1 - Strom Thurmond Dam, SC 98 mi73 min S 2.9 G 4.1 35°F

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Gainesville, Gilmer Memorial Airport, GA7 mi60 minWNW 410.00 miFair40°F36°F86%1024.1 hPa
Gwinnett County Airport-Briscoe Field, GA15 mi57 minN 010.00 miFair34°F32°F92%1024.3 hPa
Winder, Winder-Barrow Airport, GA20 mi58 minN 010.00 miFair43°F35°F76%1025.1 hPa

Wind History from GVL (wind in knots)
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Last 24hrW3W6W8W6W8N8NW14
G19
W11W8W6W7W7W6W5W6NW4NW3NW3NW5W6W4W6W5W4
1 day agoW9W10W7W8W7W66
G15
W11SW8W9W8W7W6SW8W7W6W8W8W8W8W9NW8NW7W7
2 days agoW7W9W8W7W7W11W7SW9W11W11W9W10W10W8W6W3W6W8W11W9W10W10W8W8

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 Peachtree City, GA (7,2,3,4)
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Ground Weather Radar Station Atlanta, GA
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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.