Hopefully some much needed rain for Central Florida will be moving in tomorrow. 2 winters in a row now without any serious freezing temps. Another winter like this. and I'll be planting Coconut Palms in my yard north of Tampa.
Latest Tampa NWS discussion......
Area Forecast Discussion
National Weather Service Tampa Bay Ruskin FL
250 PM EST Tue Feb 14 2017
.SHORT TERM (Tonight-Wednesday)...
High amplitude U/L pattern will persist across the CONUS
with an extensive ridge over western North America...and a
split flow pattern circumventing the ridge. A strong
southern stream disturbance currently over the Lower
Mississippi Valley will come in phase and be absorbed by the
northern stream tonight and Wednesday as it tracks across
the southeast U.S. Strong southern stream zonal flow will
develop across the Gulf of Mexico and Florida.
At the surface, high pressure will move over the western Atlantic
tonight exiting the region while an area of low pressure tracks from
the Lower Mississippi Valley to the southeastern states. Increasing
southerly flow tonight ahead of the front will create favorable
conditions for low clouds and patchy fog to develop after midnight.
Decreasing risk for fog early Wednesday morning as boundary layer
winds strengthen which will enhance low level mixing. A cold front
will approach the eastern Gulf of Mexico late tonight/early
Wednesday morning with a band of showers and strong thunderstorms
ahead of the front...which will push across west central and
southwest Florida on Wednesday. The gradient will tighten
significantly ahead of the cold front with Lake Wind Advisories
likely needed on Wednesday as southwest winds gusting to around 30
mph are expected to develop in many areas, with higher gusts along
the immediate coast of west central Florida. High risk of rip
currents and high surf will likely develop at area beaches.
There will be both aiding and inhibiting factors for severe weather
on Wednesday as the band of showers/thunderstorms move across the
region. Relatively low CAPE/high shear environment will develop over
the forecast area Wednesday with bulk shear values increasing to
around 40 knots with helicity values around 150 to 200...and CAPE
around 1000-1200. Timing of a strong 90 to 100 knot southern stream
jet speed max, which is expected to move across the southern Gulf of
Mexico and Florida on Wednesday, may aid in enhancing U/L diffluence
over the region as it potentially couples with an exiting polar jet
running up the eastern seaboard. However the southern stream speed
max may exit east of Florida prior to the line of convection
reaching the forecast area. Mid level dry air over west central and
southwest Florida will hinder widespread deep convection, although a
few stronger updrafts may entrain dry mid level air which will
enhance risk for strong downburst winds. Low level flow will also
become increasing uni-directional through the afternoon hours as
boundary layer winds shift to the southwest which will weaken low
level convergence. This all lends itself to the current SPC
analysis of a marginal risk for severe thunderstorms across the
entire forecast area on Wednesday, although the best chance for
severe thunderstorms would appear to be across the northern forecast
area where the best large scale dynamics will be in place as the
line of showers/thunderstorms initially approach the region.