Weather

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Area forecast discussion 
National Weather Service Peachtree City Georgia 
335 am EDT Monday Sep 8 2008 


Short term /today through Wednesday/... 
latest analysis shows the western periphery of a middle and upper 
level ridge nosing in over the southeast states...while a weak surface 
trough extended up from the NE Gulf into central Georgia. Model guidance 
suggests the upper ridge begins to weaken today as a long wave trough 
deepens over the middle and upper MS valley. Suspect the surface trough 
will meander slightly westward...but could still be a focus for 
isolated thunderstorms later this afternoon during maximum heating. 
This would indicate the greater chance of storms would be generally 
west of a Macon to Athens line... but with much uncertainty... 
will show slight chance probability of precipitation all zones this afternoon. Rain chances 
increase into middle week as a frontal boundary pushes into the lower 
Tennessee Valley on Tuesday and Hurricane Ike pushes into the southeast Gulf by 
early Wednesday. The combination of increasing tropical moisture 
from the southeast...weak disturbances in the upper levels and moderate 
instabilities of 1500 convective available potential energy and -4 lifted indice's will warrant a chance of 
afternoon and evening showers and thunderstorms for both Tuesday 
and Wednesday. Main threat from these storms would be cloud to 
ground lightning. Otherwise...did not stray far from persistence 
for today's highs and tonight's lows...then stayed close to the mav 
numbers for the remainder of the periods. 


Long term /Wednesday night through Sunday/... 
a chance of showers and thunderstorms will persist through the end 
of the week... and most likely into the weekend as Hurricane Ike is 
expected to push into the northwest Gulf by Friday...with deep tropical 
moisture advecting inland across the southeast. The GFS also shows 
another frontal boundary pushing into the Tennessee Valley over the weekend 
with a deep tropical southerly flow south of the front. Mex guidance 
shows scattered probability of precipitation through the extended and see no reason to stray 
from this. All interest are strongly advised to monitor the latest 
forecasts of Ike from the NHC through the week. 


&& 


Preliminary point temps/pops... 
Athens 93 67 86 66 89 / 20 10 40 20 30 
Atlanta 90 70 85 69 87 / 20 20 40 20 30 
Blairsville 87 64 81 61 81 / 20 20 40 20 30 
Cartersville 90 65 88 65 86 / 20 20 40 20 20 
Columbus 93 73 90 71 90 / 20 10 30 20 30 
Gainesville 89 68 85 67 85 / 20 20 40 20 30 
Macon 93 71 90 69 91 / 20 10 30 20 30 
Rome 91 68 89 67 91 / 20 20 30 20 20 
Peachtree City 90 66 86 65 87 / 20 20 30 20 30 
Vidalia 96 70 88 70 88 / 20 20 30 20 50 


&& 


Ffc watches/warnings/advisories... 
none. 
&& 


$$ 


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