Wednesday, March 13, 2019

Event Rainfall Totals - AM 13 March

There are some lingering, light showers still around this morning - composite NWS radar above is from 7:00 am MST.

Event total rain amounts ending at 7:00 am - ALERT data above north portion and below south portion. General rains of half to around an inch occurred across Tucson metro area. Here at house gauge shows 0.82", with perhaps a bit of that occurring this morning. Four sites at higher elevations recorded over an inch.

The 12 UTC 500 mb analysis (from SPC) shows a powerful, negatively short wave heading into Plains. Fast-moving, trailing wave will cross Arizona this morning - affecting mainly north portions of state, but leading to continued chance of some showers here locally.

The deepening surface cyclone has triggered widespread NWS watches and warnings. Blizzard conditions expected today and tonight from northeastern Colorado to the Canadian border. Image at bottom is from 7:30 am MST along I-80 west of Cheyenne, Wyoming.

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