Monday, July 17, 2017

1957 Grand Forks Storm Intensifing



At 1957 UTC GOES 16 IR imagery indicated cloud top temperatures of -58.8 C, colder than the estimated equilibrium level temperature of -51 C.  An increase in GLM flashes was noted just 1 minute prior at 1956. Over 316 GLM flashes occurred in the 5 minutes ending just before the decrease in cloud top temperatures. 

-JRM

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