Wednesday, February 21, 2018

Below Freezing Here/Next Short Wave

View from campus at a bit after 7:00 am MST this morning - note temperature of 39F. Here at house the low this morning was 29F - the first morning of February with a low of freezing or below.

Shown here are the 72-hour 500 mb forecasts from 00 UTC last evening that are valid at 5:00 pm Friday afternoon - GFS above and ECMWF below. Both forecasts are similar, with a significant short wave crossing Arizona again. This weather system will bring strong winds again to Arizona. However, it will be another moisture-starved system, with light showers or sprinkles likely across the metro area.

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