01/09/01 3:00 PM Strong CAA continues over the peninsula. Midday
temperatures are actually colder today, then on Thursday 01/04/01,
preceeding the last hard freeze of the 5th. Other differences today, the
wind direction is NW versus north on the 4th, holding dewpoints up in the
upper 10's to low 20's north, low 20's central and mid 20's south. These
dewpoint readings are 10-15 degrees warmer then on the 4th. With an
advection freeze expected tonight on a north wind of 5-15 mph, a hard freeze
should be limited to inland central areas west of U.S. 27 and north of S.R.
60, with a light to moderate freeze into south central/northern Everglades.
If the wind backs to north and or diminishes to less then 5 mph and the
departing shortwave subsidence intensifies, then our original hard freeze
into south central/northern Everglades will verify.
01/09/01 1:00 PM With a 25-35 mph NW wind temperatures are struggling out of
the 30's north and 40's central, with wind chills in the 20's and 30's.
Dewpoints continue to fall with 10's and 20's north and central and 20's and
30's south. The cold spot in the state this morning was 24 at Crestview in
the panhandle north, 26 at Geneva in the non panhandle north. More rainfall
total's from yesterday include Tampa Delany Creek with 1.10", Tampa MacDill
1.04", Brandon and Lakeland 0.96", Plant City 0.82", Wimauma 0.71" and Tampa
progress 0.70". Portions of the peninsula will see a hard freeze overnight.
Issued 01/09/01 11:00 AM With strong CAA occurring on a 20-30 mph NW wind,
dewpoints have already fallen into the low 20's, with teens expected as the
day progresses. The southward extent of the dewpoint gradient will determine
just how severe the freeze will be in south central/northern Everglades
tonight. As this will be an advective cooling event, the extreme low
temperatures (13 deg. due to radiational cooling) as occurred on the 7th
will not take place. Unfortunately advective means wind and wind defeats
cold weather protection methods, except for south of lake exposures.
As the weather pattern is becoming more progressive (fast moving) with time,
a significant freeze event is now unlikely for Thursday morning 01/11/01.
Onshore flow from the Atlantic Ocean will break the low dewpoints and the
wind will bust the radiational cooling effect.
Take Care,
Thomas F. Giella
P.O. Box 1987
Plant City, Fl. 33564
Email: tgiellaweather{at}hotmail.com
Phone: 813-764-9555
Fax: 813-764-8468
Thomas Giella Weather Forecasting And Consulting Services:
http://giellaweather.tripod.com
Plant City Fl. Area Business Links:
http://kn4lf.tripod.com/index-15.html
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