Saturday, July4, 2020
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Marine Weather and Tides
Athens-Clarke County, GA

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
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.

Sunrise 6:26AMSunset 8:49PM Saturday July 4, 2020 2:32 PM EDT (18:32 UTC) Moonrise 7:40PMMoonset 4:45AM Illumination 99% Phase: Waxing Gibbous; Moon at 14 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 Athens-Clarke County, GA
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location: 33.9, -83.31     debug


Area Discussion for - Peachtree City, GA
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FXUS62 KFFC 041740 AAA AFDFFC

Area Forecast Discussion . UPDATED for Aviation National Weather Service Peachtree City GA 138 AM EDT Sat Jul 4 2020

UPDATE.

.Have updated the pops across north GA based on radar. Cluster of showers and isolated thunderstorms persist over the far northern counties . but shows some decrease in intensity.

41

PREV DISCUSSION . /Issued 409 AM EDT Sat Jul 4 2020/

SHORT TERM /Today through Sunday/ .

.Happy Independence Day.

A fairly typical summertime environment and airmass for today with increasing instability that will lead to highly diurnal showers and thunderstorms. The best forecast instability looks to be over portions of north and w central GA and this is where the best chances for showers and thunderstorms will be maximizing this afternoon and diminishing this evening.

The main difference for Sunday is the the models are consistent with increasing deep moisture over S GA. The GFS is the most Gun Ho with bringing that moisture into central GA and the NAM and European are less so. There will be higher pops for central GA in general with the highest S of CSG and MCN. There will still be a highly diurnal nature to the shower and thunderstorm chances.

Forecast high temperatures are running near to as much as 7 degrees above normal across the area today and within 5 degrees of normal for Sunday. Forecast low temperatures are running near to as much as 8 degrees above normal for tonight. Heat indices are running in the 95 to 102 range across much of the area away from the mountains this afternoon and about 92 to 100 for Sunday.

Overall confidence is medium

BDL

LONG TERM /Sunday Night through Friday/ .

Fcst period dominated by broad low pressure advecting slowly NEWD off the northern Gulf and with it abundant enhanced moisture setting up and stagnating across the southeast CONUS. Should have high 2 plus inch PWATs across the majority of the CWA Monday through Friday and the GFS is trending even wetter for the end of the week. Have raised pops and am advertising likely to categorical for most of the area through Thursday, then a bit lower for Friday given some model discrepancy on the eastward progression of the low but still decently high chance. Most days with expected numerous to widespread convective coverage maximized in the afternoon and evening with diurnal forcing and given the high PWATs, they will be very efficient precip makers so will need to watch for localized abnormally heavy rainfall and flooding threat. This setup is more of a daily local threat rather than a more organized system over concentrated period so not planning any flood watch products.

Given the increased expected precip/cloud coverage, temps will have a limited diurnal range with below normal highs generally in the 80s and near normal lows.

Baker

AVIATION. 182Z Update . VFR conditions are expected to predominate outside of showers and thunderstorms. Potential for after/evening showers and thunderstorms today. Surface winds highly variable less than 10 kts, but generally favoring south southeast.

//ATL Confidence . 18Z Update . Medium to high confidence for all elements.

41

PRELIMINARY POINT TEMPS/POPS. Athens 94 71 92 71 / 20 10 20 30 Atlanta 92 71 91 71 / 40 20 30 30 Blairsville 86 66 84 66 / 40 30 40 20 Cartersville 93 71 91 71 / 50 20 30 30 Columbus 95 72 93 73 / 40 30 40 60 Gainesville 91 70 89 71 / 30 20 30 30 Macon 94 71 93 71 / 20 20 40 40 Rome 93 71 91 71 / 40 20 40 20 Peachtree City 92 70 90 70 / 40 20 30 30 Vidalia 95 71 93 73 / 20 10 50 40

FFC WATCHES/WARNINGS/ADVISORIES. NONE.

SHORT TERM . 41 LONG TERM . Baker AVIATION . 41


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CHDS1 - Strom Thurmond Dam, SC 61 mi72 min Calm G 6 94°F

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Athens, Athens Airport, GA4 mi41 minVar 410.00 miA Few Clouds92°F70°F49%1013.7 hPa
Winder, Winder-Barrow Airport, GA20 mi57 minN 010.00 miMostly Cloudy82°F71°F70%1015.9 hPa
Greensboro, Greene County Regional Airport, GA23 mi37 minSSE 510.00 miFair91°F68°F46%1014.6 hPa

Link to 5 minute data for KAHN

Wind History from AHN (wind in knots)
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Last 24hr5--44SE4SE4S4CalmCalmCalmCalmS4CalmE3CalmS3CalmCalmCalmCalmNE34W34
1 day agoCalmCalmE4NE4NE6NE3E3CalmE4CalmCalmCalmCalmE5CalmCalm--CalmCalmCalmNE6NE4----
2 days agoW8W9
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W7SW6W6W5W3CalmSW4W3W3W4NW3NW3NW5NW4NW5NW5NW3N4E4--4N6

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

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Peachtree City, GA (14,3,4,5)
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Ground Weather Radar Station Greer, SC
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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 numerous 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.