|Mesoscale Discussion 162|
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Mesoscale Discussion 0162
NWS Storm Prediction Center Norman OK
0316 PM CDT Tue Mar 20 2018
Areas affected...Northern/Central FL
Concerning...Tornado Watch 17...
Valid 202016Z - 202145Z
The severe weather threat for Tornado Watch 17 continues.
SUMMARY...Tornado threat is shifting into the eastern/southern
portions of ww17.
DISCUSSION...Westerly flow is strengthening across the FL Peninsula
this afternoon as a strong short-wave trough progresses across AL
toward GA. As a result, deeper convergence/forcing is beginning to
focus off the SC coast with weaker convergence arcing across the
central peninsula. Over the next few hours it appears the greater
supercell threat will shift toward the central FL Atlantic coast and
trailing convection may become more linear in nature. For these
reasons it appears the overall tornado threat may be decreasing, but
large hail and locally damaging winds remain possible.
With time, strong convection should sag south of ww17 but this
activity is expected to pose primarily an isolated wind/hail threat.
...Please see www.spc.noaa.gov for graphic product...
LAT...LON 27188304 30578383 31088138 27708066 27188304
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