May 21, 2013
LONG TERM [Friday through Monday]...
The next UPSTREAM trough will be tracking across the Upper Midwest
approaching the Great Lakes at the start of the period. Short
wave energy in the base of the trough near the ArkLaTex will
dissipate as it moves eastward into Dixie even as the long wave
trough deepens across the eastern U.S. Lower levels will remain
dry. Therefore, even though a cold FRONT will cross the area
Friday, it is expected to be RAIN-free. TEMPS will remain mild
ahead of the front, but turn cooler for the weekend. Look for
highs 65 to 70 Saturday and Sunday with overnight lows dropping
back into the 30s. Early next week, another frontal system will be
organizing over the Southern HIGH Plains. The GFS is quicker to
bring the system eastward than the 19/12Z Euro. With timing
uncertainties as they are, will go with low POPS from late Monday
into Tuesday.
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