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Severe thunderstorms in Kansas, Oklahoma and Texas

By Scott Bachmeier •

GOES-16 “Red” Visible (0.64 µm) images, with time-matched SPC Storm Reports plotted in red [click to play animated GIF | MP4]

1-minute Mesoscale Domain Sector GOES-16 (GOES-East) “Red” Visible (0.64 µm) images (above) included time-matched (+/- 3 minutes) plots of SPC Storm Reports — which showed severe thunderstorms that moved eastward and southeastward across parts of Kansas, Oklahoma and Texas on 19 September 2023.

1-minute GOES-16 “Clean” Infrared Window (10.3 µm) images (below) indicated that the coldest pulsing overshooting tops associated many of the storms exhibited infrared brightness temperatures in the -60 to -65ºC range (darker shades of red). These thunderstorms produced a tornado in Kansas, hail up to 2.75 inches in diameter in Texas and damaging winds up to 74 mph in Oklahoma.

GOES-16 “Clean” Infrared Window (10.3 µm) images, with time-matched SPC Storm Reports plotted in blue [click to play animated GIF | MP4]

5-minute CONUS Sector GOES-16 Visible images with overlays of the CAPE, Lifted Index and Total Precipitable Water derived products (below) showed that these storms intensified as they moved into a corridor of instability and moisture. CAPE values were as high as 1400 J/kg, LI values reached -6ºC and TPW values exceeded 1.60 in.

GOES-16 “Red” Visible (0.64 µm) images, with overlays of the CAPE, Lifted Index and Total Precipitable Water derived products [click to play animated GIF | MP4]

Categories: GOES-16, Severe convection