Back-building thunderstorms in Oklahoma

May 15th, 2020 |

GOES-16

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

1-minute Mesoscale Domain Sector GOES-16 (GOES-East) “Red” Visible (0.64 µm) images with plots of time-matched SPC Storm Reports (above) showed back-building thunderstorms that propagated southwestward across Oklahoma on 15 May 2020.

The corresponding GOES-16 “Clean” Infrared Window (10.35 µm) images (below) revealed pulsing overshooting tops that occasionally exhibited cloud-top infrared brightness temperatures as cold as -80ºC (violet pixels) toward the end of the time period.

GOES-16 "Clean" Infrared Window (10.35 µm) images, with SPC Storm Reports plotted in cyan [click to play animation | MP4]

GOES-16 “Clean” Infrared Window (10.35 µm) images, with SPC Storm Reports plotted in cyan [click to play animation | MP4]

Plots of 12 UTC and 18 UTC rawinsonde data from Norman, Oklahoma (below) indicated that winds throughout the troposphere had a westerly to southerly component.

Plots of rawinsonde data from Norman, Oklahoma [click to enlarge]

Plots of rawinsonde data from Norman, Oklahoma [click to enlarge]

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