Mesoscale Discussion 0368
NWS Storm Prediction Center Norman OK
1224 PM CDT Sun Apr 11 2021
Areas affected...parts of central and southern Florida
Concerning...Severe Thunderstorm Watch 91...
Valid 111724Z - 111930Z
The severe weather threat for Severe Thunderstorm Watch 91
SUMMARY...Severe risk continues locally across parts of central
Florida -- within WW 91 -- and will gradually shift southward
requiring new WW consideration across much of south Florida.
DISCUSSION...Latest radar loop shows a band of storms sagging
southward across central Florida, with occasionally stronger
storms/convective segments noted. As outflow associated with this
band shifts steadily southward, the primary zone of severe risk will
likewise shift south -- and eventually out of the current WW.
Meanwhile, as the very moist south Florida airmass continues to
warm/destabilize, additional/cellular development is occurring south
of the main convective band. Given sufficient shear across the
area, a few of these storms could produce gusty winds and hail,
prior to the arrival of storms from the north. Given these trends,
a new WW will likely be required in the next 60 to 90 minutes,
across much of south Florida.
...Please see www.spc.noaa.gov for graphic product...
LAT...LON 27138297 27428251 27688149 27878018 26977977 25937990
25568042 25538144 26138241 27138297