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Severe thunderstorms in the Southeast US

By Scott Bachmeier •

GOES-16

GOES-16 “Clean” Infrared Window (10.3 µm) images, with SPC storm reports plotted in cyan [click to play MP4 animation]

GOES-16 (GOES-East) “Clean” Infrared Window (10.3 µm) images (above) showed the development of thunderstorms which produced small hail and widespread damaging winds (SPC storm reports) across the Southeast US on 25 June 2018.

A closer view of the storms was provided by GOES-16 “Red” Visible (0.64 µm) images (below).

GOES-16

GOES-16 “Red” Visible (0.64 µm) images, with SPC storm reports plotted in red [click to play MP4 animation]

A toggle between an 1854 UTC Aqua MODIS Infrared Window (11.0 µm) image and the corresponding Total Precipitable Water derived product (below) showed that abundant moisture was in place across the region — as pointed out by a SPC Mesoscale Discussion, TPW values in excess of 2.0 inches (50 mm, violet enhancement) suggested that wet microbursts were likely with any thunderstorms that developed.

Aqua MODIS Infrared Window (11.0 µm) image and Total Precipitable Water derived product, with plots of SPC storm reports [click to enlarge]

Aqua MODIS Infrared Window (11.0 µm) image and Total Precipitable Water derived product, with plots of SPC storm reports [click to enlarge]



Categories: Aqua, GOES-16, MODIS, Severe convection