Saturday, June 15, 2013

First Summer Thunderstorms In Tucson Area


First summer thunderstorms in the Tucson area yesterday (Friday June 14th) with TUS and DM AFB both observing thunder but no rain. Four stations in the ALERT network (93 stations) had measurable rain with Haystack Mountain (far east part of network southwest of Benson) reporting 0.35". Art Douglas reported thunder, 0.10, and some hail in Ash Canyon south of Sierra Vista. the Carr RAWS station a bit north of where Art is had 0.29". The graphic above is TUS composite radar chart a bit before 3 pm and photo below was taken looking south from the house toward the airport at about 5:30 pm MST. The bottom graphic shows lightning CGs detected in southeast Arizona yesterday - so a lot of lightning but isolated showers. Some lightning was visible to the south-southeast from here just after dark.

Slightly more PW today with a continued deep boundary layer. The early WRF-GFS forecast is similar to yesterday, indicating high-based sprinkle storms and gusty winds likely across southeast Arizona.




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