Heavy rainfall and flash flooding in South Florida

May 26th, 2020 |

GOES-16 “Red” Visible (0.64 µm) and

GOES-16 “Red” Visible (0.64 µm) and “Clean” Infrared Window (10.35 µm) images [click to play animation | MP4]

1-minute Mesoscale Domain Sector GOES-16 (GOES-East) “Red” Visible (0.64 µm) and “Clean” Infrared Window (10.35 µm) images (above) showed training and back-building thunderstorms that produced very heavy rainfall and flash flooding across parts of South Florida — particularly in the Miami (KMIA) area — on 26 May 2020. Pulsing overshooting tops were evident, with cloud-top infrared brightness temperatures as cold as -77ºC.

The GOES-16 Total Precipitable Water product (below) revealed clear-sky TPW values as high as 2.2 inches (lighter shades of magenta).

GOES-16 Total Precipitable Water product [click to play animation | MP4]

GOES-16 Total Precipitable Water product [click to play animation | MP4]

Hourly images of the MIMIC Total Precipitable Water product (below) showed the rich tropical moisture associated with a tropical disturbance that had resided over the region for several days.

MIMIC Total Precipitable Water product [click to enlarge]

MIMIC Total Precipitable Water product [click to enlarge]

1985 (May 31st) Tornado Outbreak as seen from GOES-6

May 26th, 2020 |

The visible and infrared bands from GOES-6 observed the historic (31 May 1985) tornado outbreak over Pennsylvania and other parts of the Northeast. For the IR band, the coldest cloud-top temperatures are highlighted with colors. Here’s is a visible animation a bit more zoomed in.

A GOES-6 visible loop, starting at 11:00 UTC on May 31, 1985 (and ends at 01:00 UTC on June 1, 1985):

A similar  GOES-6 visible loop, but a bit more zoomed in. Loop starting at 11:00 UTC on May 31, 1985 (and ends at 01:00 UTC on June 1, 1985):

A GOES-6 infrared loop, starting at 11:00 UTC on May 31, 1985 (and ends at 00:30 UTC on June 1, 1985):

 

Fade between a GOES-6 Visible and Infrared band:

https://cimss.ssec.wisc.edu/satellite-blog/images/2020/05/goes6_PA_1985_fader.html

Swipe” between a GOES-6 Visible and Infrared band:

https://cimss.ssec.wisc.edu/satellite-blog/images/2020/05/goes6_PA_1985_swiper.html

 

NOAA GOES-6 data are via the University of Wisconsin-Madison SSEC Satellite Data Services.

More on this case, from Wikipedia and NOAA’s NWS.