Monday, June26, 2017 L-36.com


Marine Weather and Tides
Marietta, 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 6:27AMSunset 8:54PM Monday June 26, 2017 1:26 PM EDT (17:26 UTC) Moonrise 8:17AMMoonset 10:16PM Illumination 7% 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 Marietta, GA
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location: 34, -84.47     debug


Area Discussion for - Peachtree City, GA
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Fxus62 kffc 261104
afdffc
area forecast discussion
national weather service peachtree city ga
704 am edt Mon jun 26 2017

Update
Forecast is on track with cool temperatures this morning,
gradually increasing under mostly clear skies. Am observing some
mid and high clouds across the region. Anticipate the mid level
decks to erode with mixing while high clouds continue to stream
into the area through much of the day.

Prev discussion issued 350 am edt Mon jun 26 2017
short term today through Tuesday ...

have been updating the hourly temperatures tonight as models are
struggling to grasp the overall extent of this unseasonably dry and
cool airmass. Many across the high terrain will wake to
temperatures in the mid 50s.

High pressure will continue to build into the area from the north
and west through the period. This will mean very pleasant conditions
across much of the area through the short term. The front that
crossed the area Sunday night is draped well south of the region
with little to no diurnal convection expected across central ga this
afternoon. Some high clouds will start to filter into the area
throughout the day. However, Monday night into Tuesday, we will
likely see better coverage of cirrus across the region as a series
of weak impulses round an upper level trough. The trough axis will
cross ga late Tuesday afternoon. Given such a dry airmass at the
surface, it will be tough to get enough lift to promote
shower thunderstorm development despite trough. However, those
across the higher terrain may see an isolated shower or thunderstorm
as orographic effects will help with this issue. Also, there may be
enough convergence across the SE portion of the CWA to see diurnal
convection Tuesday afternoon. Either way, the probability is pretty
low, but it is there. Temperatures throughout the period will be
slightly below normal.

26
long term Tuesday night through Sunday ...

a dry air mass is in place at the start of the period with a
surface ridge centered over the appalachians. The ridge gradually
moves east... And by Thursday the return flow is bringing moisture
back into the state. Models continue to hint at a weak short wave
in the northern gulf by the weekend... And also a front approaching
from the oh valley toward the end of the period. In general we
remain in a tropical air mass from Thursday and beyond and chance
pops for most areas each day look reasonable.

41

Aviation
12z update...

vfr conditions expected through the TAF period as high pressure
builds into the region from the west. Anticipate some scattered
high clouds through the day. Winds are out of the NW currently,
but will eventually veer to the NE during the morning as mixing
increases. Winds around 8-10kts through the day. The extend of
this wind shift is a bit in question given the placement of the
surface high. As the gradient tightens a bit later in the
afternoon ahead of a mid- level disturbance, this should back the
winds to the NW for the northern TAF sites. We will see skies
clear for the most part during the evening, and then cirrus
filling back in ahead of the aforementioned disturbance.

Atl confidence... 12z update...

moderate confidence of timing duration of the NE wind shift.

Confidence high on all elements.

26

Preliminary point temps pops
Athens 85 64 85 62 0 5 10 0
atlanta 84 65 84 65 0 5 10 0
blairsville 79 57 77 54 0 10 20 0
cartersville 84 61 83 61 0 5 10 0
columbus 87 66 88 68 0 5 10 0
gainesville 83 63 82 62 0 5 10 0
macon 86 64 88 66 0 5 10 0
rome 85 60 84 60 0 5 10 0
peachtree city 85 63 85 63 0 5 10 0
vidalia 86 69 88 69 20 10 20 10

Ffc watches warnings advisories
None.

Short term... 26
long term... .41
aviation... 26


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Marietta / Dobbins Air Force Base, GA6 mi88 minN 610.00 miPartly Cloudy79°F54°F43%1021.6 hPa
Cobb County International Airport - McCollum Field, GA7 mi39 minN 510.00 miClear81°F51°F37%1021 hPa
Atlanta, De Kalb-Peachtree Airport, GA12 mi33 minno data10.00 miFair82°F55°F40%1020.2 hPa
Fulton County Airport-Brown Field, GA15 mi33 minVar 510.00 miFair83°F59°F44%1020.6 hPa
Cartersville Airport, GA22 mi33 minN 710.00 miFair80°F54°F41%1021.3 hPa
Atlanta, Hartsfield - Jackson Atlanta International Airport, GA24 mi34 minVar 310.00 miPartly Cloudy81°F55°F41%1020.9 hPa

Wind History from MGE (wind in knots)
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Last 24hrNW8NW10W9N11
G15
NW10NW8NW5NW4W7NW5NW5NW4NW4NW4N4CalmCalmCalmCalmN4N6N3N6NW6
1 day agoSW3W5NW7W8W8W6W5CalmNW9S3W5W4NW7NW6NW6NW5NW3W6NW6NW6NW7NW8NW8N10
2 days agoSW9SW11
G22
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S7
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S7W14
G26
W11SW5SW7SW3SW4SW4SW4SW6SW7SW4SW3SW3SW5SW3W6W7W5

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 (13,3,4,5)
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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.