Weather Outlook

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Date & Time: 03/22/2017 9:47 AM MST

Forecaster: Henz, D.

Synopsis:

A spring weather disturbance will move into the region later today bringing unsettled and cooler weather through Thursday. This system, currently off-shore of central CA, will push east towards the lower Colorado River Valley by this evening and into AZ early Thursday morning. An attendant cold front will bring breezy conditions, shower/rain chances (peaking overnight), and a much colder air mass into southcentral AZ during the period. Rain totals will remain on the lighter side (discussed below), but Thursday’s temperatures will fall all the way back into the upper 60s to low 70s, which will feel great after our string of record heat. Looking ahead, an active weather pattern and temperatures closer to normal values should continue through the extended forecast. More on this tomorrow.
 
For today plan on overcast skies before some brief clearing into the afternoon. Afternoon temperatures will briefly warm into the 83˚F-86˚F range around the Valley with higher terrain zones reaching the upper 70s to low 80s. Light and variable winds will give way to breezier conditions this evening/overnight with gusts as high as 20-25mph. As highlighted above, a cold front will move across the region overnight bringing scattered showers/storms to the region. Rainfall totals will be spotty and generally remain on the light side with the lower deserts seeing a trace to 0.15” and higher terrain areas north and east of the Valley 0.20”-0.40”. Also, can’t rule out some thunder during the overnight hours especially across northern and eastern zones.

For tomorrow plan on some lingering early morning shower activity before mid-morning clearing. Daytime highs will take a dramatic drop back into the 69˚F-72˚F range around the Valley. West winds will remain breezy in the 7-14mph range with gusts around 20-25mph throughout the day. A combination of daytime heating and lingering moisture may allow for another round of showers tomorrow afternoon, at the very least cloudier conditions before full clearing into the evening. Heading into Friday, plan on a return to sunny skies, dry conditions, and light winds across the Valley. Afternoon highs will remain mild in the upper 70s.

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