CIMSS Satellite Blog

GOES-16 “Red” Visible (0.64 µm, top) and “Clean” Infrared Window (10.3 µm, bottom) images, with hourly surface reports (metric units) for Córdoba, Argentina [click to play animation]

GOES-16 (GOES-East) “Red” Visible (0.64 µm) and “Clean” Infrared Window (10.3 µm) images (above) showed the development of severe thunderstorms which produced very large hail in Córdoba, Argentina on 08 February 2018. Distinct above-anvil plumes were evident on the Visible imagery, with overshooting tops exhibiting Infrared brightness temperatures in the -70 to -80ºC range (black to white enhancement). The hail reportedly began around 1930 UTC or 4:30 PM local time.

An Aqua MODIS True-color Red-Green-Blue (RGB) image viewed using RealEarth (below) showed the thunderstorm just west of Córdoba around 1850 UTC.

Aqua MODIS True-color RGB image [click to enlarge]

A time series plot of surface observations at Córdoba (below) showed numerous reports of hail between 19 UTC and 02 UTC (4 to 11 PM local time).

Time series of surface observations at Córdoba, Argentina [click to enlarge]

This hail that fell in Argentina Thursday, more than 7″ across, might be a Southern Hemisphere record. More info: https://t.co/0VqmRZpdnb Image: Victoria Druetta pic.twitter.com/cmdB600mJe

— Capital Weather Gang (@capitalweather) February 10, 2018

Large hail-producing storms in #Argentina on 8 Feb – #GOES16 VIS/IR Sandwich – **brought to you by the script make_sandwich.sh pic.twitter.com/hfGKaC37zK

— Dan Lindsey (@DanLindsey77) February 10, 2018

There were some interesting hail reports out of Córdoba, Argentina on Thursday. Here’s the 12Z sounding, (heavily) modified for 18Z.

Pretty good CAPE, but much less shear than I’d expect for giant hailstones. I’m guessing just enough to develop supercell structures. pic.twitter.com/aiXsao5jL3

— Tim Supinie (@plustssn) February 10, 2018

from CIMSS Satellite Blog http://cimss.ssec.wisc.edu/goes/blog/archives/27022