Area forecast discussion...updated
National Weather Service Peachtree City Georgia
736 am EDT Sat may 25 2013
Previous discussion... /issued 328 am EDT Sat may 25 2013/
Short term /today through tonight/...
guidance remains in decent agreement during the short term. Cutoff
over New England will continue to head offshore today...with
northwest flow in place aloft over the southeast and surface high in
south central Canada ridging southward. Ridging will build in over
the plains today and tomorrow and a shortwave riding down in the
flow aloft will likely bring an increase in high cloud cover
especially to north Georgia on Sunday. The flow aloft will begin to
flatten late in the short term as the aforementioned cutoff low
continues pushing out into the Atlantic resulting in a lower
amplitude wave.
Temperatures today will again be very pleasant...remaining below seasonal
norms just about everywhere. Expect another cool night tonight with
dry air remaining in place...but on Sunday as the surface ridge axis
shifts east the flow will swing back around to the southwest and
west...bringing a gradual return of surface moisture to the area...
as thicknesses begin increasing. Expect highs on Sunday several
degrees warmer today...closer to seasonal normals...but this is just
the beginning of a more substantial warming trend into the extended.
Fire weather...
fuels dried to below 8 percent just about everywhere with the breezy
conditions on Friday...and with dry conditions remaining in place...
a Fire Danger Statement will be warranted for a Crescent-shaped area
from north central Georgia /south of the ridge line/ across eastern
zones and covering most of the southern zones. Some areas may not
quite see 4 full hours of relative humidity less than 25 percent but it will be
close enough. Moisture will begin returning to the area on Sunday so
do not expect any additional fire danger conditions at that time.
Tdp
Long term /Sunday through Friday/...
over the course of the long term the upper ridge builds over the
region. For the first couple of days we remain in a northwest flow
which will help usher weak short waves. These could be enough to
produce isolated showers/thunderstorms during the afternoon and evening
hours Monday and Tuesday afternoon and evening over the extreme
northeast part of the County Warning Area. After Tuesday the ridge becomes the
dominant feature keeping the County Warning Area dry for the rest of the long
term with a more Summer like pattern.
17
Climate...
Records for 05-25
Maximum temperature min temperature
station high low high low
------- ---------- ---------- ---------- ----------
kahn 100 1926 65 1979 71 2004 46 1979
1956
katl 93 1960 63 1895 72 2004 46 1979
1953 1953
kcsg 95 2012 71 1979 75 2000 51 1979
2011 1956
1953
kmcn 98 1953 65 1923 74 2000 49 1979
Records for 05-26
Maximum temperature min temperature
station high low high low
------- ---------- ---------- ---------- ----------
kahn 99 1911 63 1963 72 2004 41 1979
katl 94 1936 64 1923 73 1989 43 1979
1916 1901
1911
kcsg 97 2012 75 1961 74 2000 47 1979
1989
kmcn 98 1962 69 1901 72 1921 49 1979
&&
Aviation...
12z update...
VFR through the period. NE winds at taf time should increase to
5-7kt today...and then swing back to SW this afternoon /current
timing for atl is 19z/. Winds subside overnight tonight. Few-scattered
high clouds expected off and on through the period.
//Atl confidence...06z update...
medium-high on timing of wind shifts.
High on all other elements.
Tdp
&&
Preliminary point temps/pops...
Athens 78 52 82 57 / 0 0 5 5
Atlanta 78 57 82 62 / 0 0 5 5
Blairsville 76 48 77 52 / 0 0 5 5
Cartersville 79 50 82 53 / 0 0 0 5
Columbus 83 58 86 63 / 0 0 0 5
Gainesville 77 54 79 58 / 0 0 5 5
Macon 81 52 85 57 / 0 0 0 5
Rome 80 50 82 54 / 0 0 5 5
Peachtree City 79 49 83 55 / 0 0 5 10
Vidalia 84 57 85 61 / 0 0 0 5
&&
Ffc watches/warnings/advisories...
none.
&&
$$
