Friday, January 21, 2011

Jan. 21 - Low wind high PM event - No more of the well above normal temperatures but we're right about the normal today. Low of 27F this morning at the NMSU Coop station. The 1971-2000 normal low for today is 29F. We also had a high of 64F at the NMSU coop. Looks like we'll be getting northerly winds today and northwest winds aloft. Below is the predicted surface winds at 21 UTC (2 pm).
We see the low wind, evening PM spike at the Sunland Park City Yard station.
The core site in Las Cruces shows a little hint of elevated evening PM.
We also see an evening PM spike at the Chaparral, Anthony, and Las Cruces Holman Road stations.This explains the moderate AQI in the map below.

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