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Severe thunderstorms in South Florida

By Scott Bachmeier •

GOES-16

GOES-16 “Red” Visible (0.64 µm, top) and “Clean” Infrared Window (10.3 µm, bottom) images, with SPC storm reports plotted in red and airport identifiers plotted in yellow [click to play MP4 animation]

1-minute Mesoscale Sector GOES-16 (GOES-East) “Red” Visible (0.64 µm) and “Clean” Infrared Window (10.3 µm) images (above) showed the southward propagation of a pre-cold-frontal trough axis (surface analyses) which appeared to play a role in enhancing ongoing convection — some thunderstorms then produced weak tornadoes, damaging winds and hail over parts of South Florida during the afternoon hours on 10 April 2018 (KMFL PNS). SPC storm reports are plotted on the GOES-16 images.

The NOAA/CIMSS ProbSevere All Hazards product (from this site) for the 1934 UTC tornado is shown below, at two-minute intervals from 1926-1946 UTC. ProbWind for this storm jumped as the tornado began, and the storm had the highest ProbWind values of those on the map.

NOAA/CIMSS ProbSevere All Hazards read-out from 1926-1946 UTC on 10 April 2018 (Click to enlarge)

The NOAA/CIMSS ProbSevere All Hazards product (from this site) for the 2025 UTC tornado is shown below, at two-minute intervals from 2012-2034 UTC. ProbTor increased from 1% to 10% between 2020 UTC and 2028 UTC with this storm.  ProbWind exceeded 90%.

NOAA/CIMSS ProbSevere All Hazards read-out from 2012-2034 UTC on 10 April 2018 (Click to enlarge)

Categories: GOES-16, ProbSevere, Severe convection