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From: Thomas Giella FMCI (fmci{at}tampabay.rr.com)
Date: Mon Jan 20 2003 - 14:15:52 EST
2003 Florida Daily Weather Discussion
http://www.kn4lf.com/sub/fmci17.htm
#2003-18 Published Monday 01/19/03 At 11:00 AM EST
The trajectory of the cold surface high pressure system allowed it's center
to settle in over the south central peninsula early this morning, resulting
in the coldest minimum temperautre readings in the state being observed in
this region.
The cold spot in the state early this morning was 18 deg. at Venus WNW of
Lake Okeechobee in the citrus belt on the south central peninusula. The cold
spot across the north was 22 deg. at Bell. The cold spot across the southern
peninsula was 32 deg. at Ortona and South Bay. The subfreezing line extended
deep into the inland southern peninsula, with the hard freeze line down to
approximately I-4 on the central peninsula.
Other notable minimum temperatures in the citrus belt on the south central
peninsula include 23 deg. at Archbold and 31 deg. at Fort Pierce and Vero
Beach. Only isolated pockets of the citrus belt saw a hard freeze so damage
was minimal.
Other notable minimum temperatures in the state include 23 deg. at East
Nobleton, 24 deg. at Crestview, Tallahassee, Chiefland and Mount Plymouth,
25 deg. at Inverness, 27 deg. at Palm Bay, 28 deg. at Scottsmoor, 29 deg. at
North Plant City (Knights Station) and 30 deg. at Melbourne.
In the immediate Tampa Bay area the minimum temperatures early this morning
were:
32 deg. Rural West Plant City
29 deg. Rural North Plant City (Knights Station)
35 deg. Urban Climate Station Plant City
33 deg. Suburban East Tampa Vandenberg Airport
37 deg. Rural FAWN Station Dover
31 deg. Suburban Lakeland Linder Airport
37 deg. Suburban NWS Tampa Bay Office Ruskin
37 deg. Rural Balm
43 deg. Urban/Coastal Tampa International Airport
MM deg. Urban/Coastal St. Pete/Clearwater Airport
39 deg. Urban/Coastal Mac Dill AFB
39 deg. Suburban Sarasota/Bradenton Airport
46 deg. Urban/Coastal St. Pete. Albert Whitted Airport
So far this season, at my rural West Plant City weather station location I
have seen 10 mornings of 32 deg. or lower, with the coldest reading at 27
deg. At my second weather station in rural North Plant City (Knights
Station) 15 mornings have seen 32 deg. or lower, with the coldest reading at
25 deg. At my third weather station in East Nobleton in Sumter County 32
mornings have seen 32 deg. or lower, with the coldest reading at 19 deg.!
So far during the first 20 days of January 2003 daily mean minimum
temperature has been running approximately 10-15 deg. below normal across
the state!
Looking down the road in th near term, Tuesday-Thursday early mornings
01/21-23/03 look warmer but still cold to chilly but with low 70's during
the day. Unfortunately it also appears that the third salvo of Arctic air
that will arrive for Friday-Saturday 01/24-25/03 WILL BE THE COLDEST YET
THIS SEASON and an advection type (windy). Something to note is that this
latest Arctic air invasion will travel nearly it's full length from Siberian
Russia to the deep south of the U.S. over snow cover, increasing the danger
of a more widespread hard freeze deep into the southern peninsula.
In the mid term our Siberian Arctic express pattern will steadily reload, as
the El Nino pattern stokes back up temporarily, possibly providing us with
some precipitation. After tremendous El Nino enhanced record rainfall in
December 2002, the first 20 days of January 2003 have been bone dry, due to
the endless cold onslaught.
As is common in moderate El Nino years, as we move into the first two weeks
of February 2003, expect the reloaded Siberian Express onslught of Arctic
air to once again invade Florida.
Thomas Giella
FL Meteorological & Climatic Institute
http://www.kn4lf.com/sub/fmci.htm
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