Tuesday, October 20, 2009

Should be an Interesting Day

Lots of cumulus scudding to the north-northeast this morning with clouds on most of the mountains. View above was at 7 am looking north from Kitt Peak. Low-level moisture increasing, at least briefly, as strong, short-wave, trough at 500 mb approaches from the northwest part of state. This is not a particularly cold S/W, with coldest temps at 500 mb around -20C, but positive vorticity advection will be fairly strong this afternoon and we should see a nice mix of weather elements: showers, some thunder, wind, dust and falling temperatures.

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