Skies are clear and crisp this morning over Tucson area and I'm sure the CoC is delighted.
The new NAM forecasts from 12 UTC this morning show a bit of a change for the coming weekend.
The 24-h 500 mb forecast (above) indicates a S/W splitting away from the closed low over Alaska. By 84-h (Saturday at 5:00 pm MST - below) the S/W in the southern branch of the 500 mb flow is approaching the Southwest. The 700 mb forecast for same time (bottom) gives a bit of hope for Saturday night and Sunday showers, as the system is forecast to pick up some lower-latitude moisture. Would be nice - the last time rainfall of 0.15" or more fell here at the house was way back on January 8th - exactly three months ago.
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