Monday, January21, 2019 L-36.com


Marine Weather and Tides
Oakwood, GA

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 7:37AMSunset 5:55PM Monday January 21, 2019 12:35 PM EST (17:35 UTC) Moonrise 6:41PMMoonset 8:02AM Illumination 99% Phase: Full Moon; Moon at 16 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 Oakwood, GA
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location: 34.24, -83.95     debug


Area Discussion for - Peachtree City, GA
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Fxus62 kffc 211440
afdffc
area forecast discussion
national weather service peachtree city ga
940 am est Mon jan 21 2019

Update
Current forecast looks to be on track for this morning. Dry
weather with little to no cloud cover still expected for today
with temperatures hovering in the 30s across the north with 40s
expected further south. Will let wind advisory expire as wind
chills in the mountains are starting to rise above criteria.

Reaves

Prev discussion issued 632 am est Mon jan 21 2019
prev discussion... Issued 431 am est Mon jan 21 2019
short term today through Tuesday ...

latest regional temperature analysis shows temperatures continue
to fall across the area with upper teens already quite common
across the northeast mountains. Lower to mid 20s the rule outside
of this area and north of the i20 corridor. Still have some 5
hours left of potential cooling so may need to adjust short term
diurnal curve to reflect this. This should have a bearing wind
chills as well as still seeing gusts in excess of 20 kts across
the northern tier. Seeing numerous values in the single digits and
a few meeting wind chill criteria already. Although should see
further drops in temps, winds should also subside a bit so current
wind chill advisory looks on target.

Not much of a temperature recovery today although it will be
warmer by a few degrees than yesterday and much lighter winds
should allow it to at least feel a bit warmer. Guidance in good
agreement in depiction of upper 30s mountains to around 50 for the
southern tier. Another cold one in store for tonight with lower
20s NE portions and mostly mid to upper 20s elsewhere.

Strong high will shift offshore for Tuesday allowing for a
moisture increase and moderating temps as well. Mid to upper 40s
to mid 50s south by Tuesday afternoon along with slight chance of
light rain developing. Best chances appear to be along west
central portions of the state and will carry 20 pops in the grids
in this region.

Deese

Long term Tuesday night through Sunday
The wedge that will bring dew points as low as the mid-teens to the
area will finish eroding through Tuesday night as the high pressure
that originally forced the cold air advection moves off over the
atlantic being replaced by warm and moist, southerly low-level flow.

The result could be a fairly pleasant day on Wednesday, the only day
in the entire forecast period that expected to have above normal
temperatures. Alas, we can't have nice things as rain followed by a
cold front begins to move into the forecast area. It's unsure
exactly when the rain will start to move in but there's higher
confidence that we will see a line of showers and thunderstorms
sweep through the area by Wednesday night, with dry are moving in
behind the cold front on Thursday.

Afterwards, models begin to diverge, but stay in agreement that the
longwave trough which will settle in over the central u.S. Will be
there to stay for a bit. Given how active the long range pattern
looks to be, as more and more shortwaves move through the longwave
trough the less and less reliable model forecasts get. Regardless
both the GFS and euro have the next shortwave kicking through on
Friday morning, but there are difference on if the system will be
dry or could hold snow flurries for far northern georgia.

The final storm system in the extended forecast is progged to move
through the forecast area starting on Sunday. There are differences
on storm evolution and moisture between the euro an gfs, but they
are slowly beginning to come in line with one another. Both have
digging shortwaves moving through the larger scale trough with
surface low pressures developing along the baroclinic gulf coast
boundary (classic for winter storms in this area). The GFS has a
stream of moisture ahead of the storm that could bring some light
snow primarily to NW ga. The euro develops a much deeper storm
system with a more complex evolution with a lot more
moisture and 'wrap-around' precip on the backside of the low-
pressure system on Sunday night which could bring light snow to a
larger portion of the forecast area. It's far too early to nail down
further details with this system as confidence is still low in the
exact scenario that will develop, however, confidence is growing that
we could see at least minor impacts to the area with this system.

Thiem

Aviation
12z update...

vfr conditions to continue for this entire taf
cycle. Wind gusts will gradually subside through this morning and
then shift east during the early afternoon hours.

Atl confidence... 12z update...

high on all elements.

Deese

Preliminary point temps pops
Athens 44 25 46 36 0 0 10 50
atlanta 43 27 46 40 0 0 20 40
blairsville 38 22 40 32 0 0 10 50
cartersville 41 27 46 39 0 0 20 40
columbus 49 30 53 47 0 0 10 30
gainesville 42 25 43 35 0 0 10 50
macon 48 27 53 44 0 0 10 30
rome 39 26 47 41 0 0 20 50
peachtree city 45 27 48 41 0 0 20 40
vidalia 48 30 56 47 0 0 10 30

Ffc watches warnings advisories
Wind chill advisory until 10 am est this morning for the
following zones: fannin... Gilmer... Towns... Union.

Short term... Deese
long term... .Thiem
aviation... Deese


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Gainesville, Gilmer Memorial Airport, GA7 mi43 minVar 410.00 miFair34°F9°F35%1030.5 hPa
Gwinnett County Airport-Briscoe Field, GA18 mi40 minN 010.00 miFair34°F8°F34%1031.9 hPa
Winder, Winder-Barrow Airport, GA23 mi41 minN 010.00 miFair36°F12°F38%1031.2 hPa

Wind History from GVL (wind in knots)
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Last 24hrNW15
G23
NW19
G25
NW17
G27
NW15
G23
NW11NW14
G19
NW14
G20
NW14NW15
G23
NW14
G18
NW12W11W10W11NW8NW6W5W9NW6NW4NW6NW6N34
1 day agoE7E8E8E6SE9SE8S9S9
G16
S5SW8SW11W11W18
G26
W13
G23
W18
G27
W14
G21
W13
G24
W12
G26
NW15
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W18
G30
NW16
G29
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G28
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NW21
G29
2 days agoW4NW4W7W5SW5SW4CalmCalmCalmCalmCalmE5SE5E7E5E6E7E9E9E9E10E12
G18
SE9E8

Tide / Current Tables for
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Weather Map and Satellite Images
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GOES Local Image of Southeast    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 (12,3,4,5)
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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.