Saturday, January16, 2021
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Marine Weather and Tides
Hiawassee, GA

Version 3.4
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8/26/2020 The 7 day forecast is taking about 5 seconds to load but it will eventually load. NOAA is still working on it.
8/18/2020 NOAA continues to have trouble. Wind guest will occasionally be left off graphs. I am working with NOAA to resolve the issue.
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 7:39AMSunset 5:51PM Saturday January 16, 2021 2:49 AM EST (07:49 UTC) Moonrise 10:18AMMoonset 9:31PM Illumination 9% Phase: Waxing Crescent; Moon at 3 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 Hiawassee, GA
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location: 34.92, -83.72     debug


Area Discussion for - Peachtree City, GA
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FXUS62 KFFC 160212 AFDFFC

Area Forecast Discussion National Weather Service Peachtree City GA 912 PM EST Fri Jan 15 2021


UPDATE.

Have had to massage temperatures and dew points a bit to better capture the cooling trend and dry air in place, respectively. Much of the light radar returns across northern AL and central TN is likely precipitation that is not reaching the ground. However, an embedded shortwave rounding the base of the upper-level trough and its attendant moisture will traverse north Georgia late tonight through tomorrow morning, bringing light rain showers and light snow showers to the higher terrain of north Georgia, mainly between 06z and 18z Saturday. Still advertising snow accumulations under 0.5 inch, aside from the highest peaks.

Previous discussions follow .

Martin

SHORT TERM /Tonight through Saturday Night/ .

Rain has cleared all but one or two counties in the SE portion of the CWA with the cold front that pushed through this morning into the afternoon. Skies have cleared behind the front and temperatures have been slowly warming. Winds have picked up with gusts up to 25+ mph recorded at KATL, and those will continue through the afternoon as the sunlight promotes mixing. Have lowered afternoon dewpoints compared to most guidance given dry air aloft is already mixing downward as evidenced by observed dewpoints in the teens across north GA.

Focus shifts tonight to the potential for winter weather in north GA. Shortwave embedded in the larger trough over the eastern CONUS will rotate into the area tonight into tomorrow morning, providing for a window of ascent across north GA. Profiles appear conducive for some light snow showers to spread across the area tonight, especially in the mountains where terrain may aid ascent. Best chances may be in the morning, where some upper-level moisture wrapped within the core of the upper-level low will overspread the area and bring some light accumulations. These should be light, generally less than half an inch (if that), though some of the west and north facing mountain slopes could do a little better, with accumulations up to an inch to an inch and a half. Given limited overall impacts, have opted to not issue an advisory, and will continue the /SPSFCC/ product previously issued. Outside of far north GA, can't rule out seeing a few flakes fly as far south as the metro, though no accumulation expected with any of these.

Elsewhere, expect it to be a cool day tomorrow, with highs only reaching into the 40s across most of the area. This will make the winds a bit more impactful, as we could again see sustained winds of 10-15 mph and gusts of 25+ mph. Make sure to bring that coat if spending extended time outdoors!

Lusk

LONG TERM /Sunday through Friday/ .

An upper level low moves through the lower great lakes on Sunday. As of right now, the models mostly support a dry front moving through the northern part of the CWA. Moisture values out ahead of the front are pretty low and the forcing is nearly non-existent but a few drops of rain mixed with some flakes of snow could be possible so I left an outside chance of pops in for late sunday night.

As that front moves out, the flow becomes pretty flat and westerly. This will give us a nice start of the week with clear skies and temperatures slightly above average for January with high 50s and low 60s possible. As the flow becomes more SW by Wednesday, moisture starts to return and given that the upper level flow remains pretty flat, any small impulse could give us a chance for showers and possibly a rumble of thunder. The models indicate that a surface stationary front is likely to form driving pops up in northern GA by Wednesday. A low pressure forming by mid next week in the Gulf of California will get wrapped up in the flow and will ultimately be the source of our next rain event, likely to roll through late next week.

Temperatures, beginning Wednesday of next week, will be running at about 5 to 10 degrees above normal for this time of the year with widespread 60s throughout the CWA. Hopefully this trend will continue and we'll see a quick end to this snow nonsense.

Vaughn

FIRE WEATHER .

For this afternoon, Min RH values expected in the low 20s to upper 30s, with lowest RH values in west central Georgia. Sustained winds should be from the west between 6-11 kt, with gusts up to 25kts. As a result, a brief window of hazardous fire conditions may be possible this afternoon.

Vaughn

AVIATION . 00Z Update . Winds have begun to relax post-sunset, and will stay W at 3-8 kt overnight. Winds will ramp back up after sunrise Saturday, staying W at 7-15 kt with gusts exceeding 20 kt at times. BKN stratus deck still on track to move in from the west overnight, with cigs dropping to around 045 at KATL and other metro ATL sites from around 15z to 19z Saturday.

//ATL Confidence . 00Z Update . Medium to high confidence on how far south cigs make it on Saturday morning. High confidence on all other elements.

Martin

PRELIMINARY POINT TEMPS/POPS. Athens 34 46 28 50 / 5 0 5 0 Atlanta 34 43 29 48 / 5 0 5 0 Blairsville 28 36 25 41 / 20 20 5 0 Cartersville 32 42 26 49 / 5 5 5 0 Columbus 34 48 28 53 / 5 0 0 0 Gainesville 33 42 29 47 / 5 5 5 0 Macon 32 50 26 54 / 5 0 0 0 Rome 32 43 27 49 / 10 5 5 0 Peachtree City 32 45 27 50 / 5 0 5 0 Vidalia 35 51 31 54 / 5 0 0 0

FFC WATCHES/WARNINGS/ADVISORIES. NONE.

SHORT TERM . Martin LONG TERM . Vaughn AVIATION . Martin


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Andrews-Murphy Airport, NC20 mi54 minN 010.00 miMostly Cloudy26°F23°F86%1004.7 hPa

Link to 5 minute data for KRHP

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Last 24hrCalmS3CalmCalmCalmCalmS7SW6W8W12W5
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1 day agoCalmCalmCalmCalmNE3CalmCalmCalmCalmW5W3W7W6W7CalmCalmCalmNE3CalmCalmCalmCalmCalmCalm
2 days agoCalmNE3N4CalmN3CalmCalmCalmCalmCalmW3W5SW6CalmW4CalmCalmCalmCalmCalmCalmCalmCalmCalm

Tide / Current Tables for
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Tide / Current Tables for
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Weather Map
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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.
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