Area Forecast Discussion
Issued by NWS
FXUS62 KTAE 210629
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TALLAHASSEE FL
229 AM EDT Tue Oct 21 2014
.Near Term [Through Today]...
A northern stream shortwave trough axis presents very well this
morning via WV analysis. As of 06z, deep layer drying, resultant
from the subsiding air on the backside of the wave, was along our
northern Alabama and Georgia counties. This dry air will overspread
the region today and mix down to the surface, resulting in relative
humidity levels 10+% lower than yesterday afternoon. High
temperatures will be a smidge warmer than yesterday, ranging from
the mid 80s in the southeast Big Bend, to lower 80s across southeast
Alabama. Expect no rain, with little to no cloud cover (outside of
the eastern Big Bend) as well.
.Short Term [Tonight Through Thursday]...
The low pressure system over the northeast CONUS will become
vertically stacked on Wednesday and move slowly eastward and
off the New England coast on Thursday. The local area will
continue to reside on the backside of the associated though
through early Wednesday. The upper pattern will then gradually
transition to become nearly zonal by late Thursday. This will
keep deep layer north to northwest flow over the Tri-state area
through the period. At the surface, high pressure will build down
from the north and filter a cooler and much drier airmass into the
region on light northerly winds in the wake of another dry cold
frontal passage tonight. Under abundant sunshine, daytime highs both
days will be just under seasonal levels. With the dry airmass in
place, low temps will be below normal. Min temps tonight will
range from around 50 to the lower 50s except mid to upper 50s
along the immediate coast. Lows Wednesday night will dip into the
lower to mid 40s all zones except around 50 to the lower 50s along
.Long Term [Thursday Night Through Tuesday]...
The dry pattern looks to continue through the extended. The 20/00z
Euro keeps the pattern more progressive at the end of the period
similar to the GFS. The lack of deep moisture is expected to keep
PoPs below 20 percent through the period with daytime highs near
average and overnight lows a few degrees below average.
[Through 06Z Wednesday] Outside of a possible brief period of MVFR
visibilities at VLD this morning, VFR conditions under clear
skies and relatively light winds will prevail through the TAF.
Offshore flow will prevail at least through the remainder of the
work week. Winds and seas will be somewhat elevated on Wednesday
and Thursday as another dry cold front moves through.
Relative humidity levels will remain above critical thresholds
today, but will flirt with Red Flag levels both Wednesday and
Thursday. However at this time, even if critical thresholds are met,
duration and/or wind criteria will most likely not. Marginally high
dispersions will also be possible tomorrow in the wake of a dry cold
front. Thus, although Red Flag criteria is not expected at this
time, it may be close on Wed. and Thu. and caution should be
exercised on Wednesday due to the forecast marginally high
Dry weather is expected for the next several days with no flooding
.Preliminary Point Temps/PoPs...
Tallahassee 84 51 79 44 78 / 0 0 0 0 0
Panama City 81 59 79 51 75 / 0 0 0 0 0
Dothan 81 50 77 44 76 / 0 0 0 0 0
Albany 81 49 77 42 77 / 0 0 0 0 0
Valdosta 83 51 77 44 77 / 0 0 0 0 0
Cross City 85 53 81 46 79 / 10 0 0 0 0
Apalachicola 80 59 79 51 77 / 0 0 0 0 0