Monday, January22, 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 5:58PM Monday January 22, 2018 11:11 AM EST (16:11 UTC) Moonrise 10:58AMMoonset 11:16PM 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
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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 221142
afdffc
area forecast discussion
national weather service peachtree city ga
642 am est Mon jan 22 2018

Prev discussion issued 246 am est Mon jan 22 2018
short term today through Tuesday ...

short term forecast largely marked by frontal passage this afternoon
into Tuesday morning. Rapid increase in moisture is still expected,
with shower activity beginning as early as this afternoon. Expect
overcast skies with prominent low level moisture by late morning,
which should act to keep instability limited. Regardless, most
unstable CAPE still looks to be enough to support scattered
thunderstorms, generally just ahead of the front, though best mid
level forcing could pass north of the area in the tn valley. Spc
does have portions of western and central georgia in a marginal risk
for severe storms. Given the front will move into eastern georgia in
the early morning hours, waning instability is not likely to support
any strong activity. Have good chance to categorical pops beginning
18-20z in far northwest georgia, then quickly spreading them south
and east into the overnight period. Moisture quickly exits into
Tuesday, with only slight chance pops in the far southeast corner of
the CWA by 15z mid morning.

Model guidance has been having difficulty with the warm more mild
temperatures over the state over the weekend. As a result, generally
went with an adjusted upward blend of the guidance for highs today
and Tuesday. Precip and cloud cover are still expected to dampen
insolation, but still expect we could be in the mid 60s to low 70s
this afternoon. Highs Tuesday will run 8-10 degrees cooler as a
result of the frontal passage.

31
long term Tuesday night through Sunday ...

models continue in close agreement with the long term. A
relatively progressive pattern will continue through the long term
with the next short wave moving across the region late Friday and into
the weekend. Guidance continues to give high pops
Saturday Saturday night and this seems reasonable as a wedge sets
up Friday with gulf moisture overrunning the wedge Saturday.

Strong isentropic lift in the lower levels across north georgia
Saturday should produce light rain drizzle ahead of the deepest
moisture which doesn't move into the CWA until late Saturday and
Saturday night. At this time instability will be minimal and
therefore will continue to keep thunder out of the forecast.

The associated cold front will move across the CWA Sunday ending
the precip from the northwest Sunday night. Colder air will spread
across the CWA Sunday night. There will also be some lingering
moisture across extreme north ga Sunday night, and with the colder
air some of the rain could be briefly mixed with light snow or
flurries before ending.

17

Aviation
12z update...

vfr conditions will become MVFR by 15-18z this morning as moisture
moves into the area ahead of a cold front. Expect ifr conditions
by early afternoon. Light rain is expected as early as 18z, but
better coverage thunder expected after 22-23z and kahn and
southern TAF sites could see activity through 06z.VFR conditions
are expected by 12z Tuesday. Winds will start off SE at 6kt or
less, then shift to the SW and increase to 8-12kt. Expect gusty
winds in near thunderstorms.

Atl confidence... 12z update...

medium on timing of ifr cigs.

High on all other elements.

31

Preliminary point temps pops
Athens 64 50 60 33 50 70 10 5
atlanta 65 46 57 33 50 70 5 5
blairsville 59 40 50 27 80 100 10 5
cartersville 64 42 54 30 80 100 5 5
columbus 67 48 60 36 60 60 10 0
gainesville 61 45 55 32 70 90 10 5
macon 70 51 63 35 30 60 20 0
rome 65 41 53 30 80 100 10 5
peachtree city 66 46 59 32 50 70 5 5
vidalia 73 58 67 38 20 60 30 0

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 mi31 min N 1 G 1.9 51°F

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Gainesville, Gilmer Memorial Airport, GA7 mi18 minESE 710.00 miOvercast52°F43°F72%1020.7 hPa
Gwinnett County Airport-Briscoe Field, GA15 mi15 minESE 510.00 miOvercast51°F46°F86%1021.1 hPa
Winder, Winder-Barrow Airport, GA20 mi37 minSSE 310.00 miOvercast54°F46°F77%1021.7 hPa

Wind History from GVL (wind in knots)
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Last 24hrSW8W7W8SW7SW5S4S3CalmS3CalmCalmCalmSE4CalmSE4E3NE4NE3NE3E6E6E7SE5SE7
1 day agoW8N8NW14
G19
W11W8W6W7W7W6W5W6NW4NW3NW3NW5W6W4W6W5W4NW5W3NW5W7
2 days agoW7W66
G15
W11SW8W9W8W7W6SW8W7W6W8W8W8W8W9NW8NW7W7W3W6W8W6

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
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IR Satellite Image from GEOS
east_satellite

GOES Local Image of Southeast    EDIT
Geos

Wind Forecast for Peachtree City, GA (11,2,3,4)
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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.