Wednesday, April 17, 2019

"Event" Summary

View of Catalinas at 7:41 am MST this morning shows sunshine down in metro area but buildups over the mountains. Kitt Peak at same time (bottom) was still obscured by a bit of low clouds out that way.

The 500 mb pattern this morning (12 UTC analysis from SPC - above) shows that there is a weak, closed low in the southern stream - very similar to what all the models had been forecasting the past few days.

Here yesterday sprinkles began around 4:30 pm as a band of showers was developing overhead - had 0.04" during the night. The showers developed into a line of thunderstorms, as per the 24-hour CG flash density plot below (for 24-hours ending at 7:30 am - from and Vaisala). There were a couple more lines over the southeast corner of state and the New Mexico Bootheel. No thunder here at house, although there was lightning around.

Observations from the ALERT network (above and below) for 24-hours ending at 6:00 am indicate an event with very light amounts generally less than a tenth of an inch - exception was along eastern portions of network and the mountains where a few sites were over half an inch, and one site east of Vail had over an inch.

Weather question for rest of month is whether a pattern will develop that will bring some rain.

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