Thursday, March 19, 2015

Brief Summary Of Yesterday's Rainfall

Showers moved into the metro area late yesterday afternoon - above is view of Catalinas from campus at 5:00 pm MST. By 8:00 pm every station across the ALERT network had recorded measurable precipitation, making the NWS POPs of 40% quite conservative.

Shown here are the metro west (above) and metro east (below) sectors of the ALERT network for 24-hours ending at 5:00 am MST this morning (Thursday, March 19th). Amounts at lower elevations were mostly 2/10s of an inch, or less, However, three stations in Catalinas and Rincons measured over half an inch, with a max of 0.63 inch. Here at house we had had 0.14" by 8:00 pm.

There were some isolated thunderstorms over southeast Arizona, but most thunderstorms occurred over southern California and northern Mexico. Graphic below shows detected CG flashes through 11:00 pm yesterday night. The WRF-Nam continues to forecast small amounts of CAPE for this afternoon, and there may be more thunderstorm activity as the closed low at 500 mb slowly approaches across southern Arizona and northern Mexico.

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