Area forecast discussion
National Weather Service Tucson Arizona
240 PM MST Sat may 18 2013
Synopsis...a low pressure system will move into the region tonight
and Saturday. Expect gusty winds and somewhat cooler temperatures
again today. High pressure over the western United States will then
develop early next week and guide temperatures back to well above
average.
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Discussion...upper trough will pass through the area today bringing
cooler daytime temperatures and a bit of a breeze. Cloud cover over
the area has been thinning since last night and should be east into
New Mexico by this afternoon. Gradual warmup will start of Sunday
and continue into middle-week where Tucson will once again threaten
triple digits Wednesday and Thursday.
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Aviation...scattered to locally broken clouds above 15kft above ground level will push on
east today with sky clear conditions likely by 19/00z. Surface wind terrain
driven less than 10 kts through 18/16z then west-SW 10-20 kts with higher
gusts again after 18/18z. Aviation discussion not updated for taf
amendments.
&&
Fire weather...a dry upper level trough will move across the state
today and be east of the area on Sunday. While this system will be
dry...temperatures will cool off this weekend with continued breezy
to locally windy conditions in the afternoon. Dry conditions will
continue into the middle of next week with above normal temperatures
into Wednesday.
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Twc watches/warnings/advisories...none.
&&
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