Tuesday, September 12, 2017

Hot And Dry Run Continues

A few CG flashes yesterday afternoon were detected south to west of Tucson. Another day with no rainfall across the Pima County ALERT network, and with high temperature of 103 F at the airport.
The NWS is going for a near record high around 105 F today - see their web page (link to the right).

The plot of CG flash density above (from weather.graphics and Vaisala for 24 hours ending at 6:45 am MST this morning) shows the thunderstorm activity now stretching from the Pacific cyclone across California and well into the Great Basin. The 500 mb 12 UTC analysis below (from SPC) shows Irma cyclone over north Alabama and the Pacific cyclone west of San Francisco. Banana-shaped anticyclone in between is centered nearly overhead. Rest of week appears pretty dismal.

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