Friday, December 22, 2017

Very Cold AM Plus Chaff Streaks Yesterday


A Christmas kind of view of Jackson, Wyoming this morning. Hope that everyone has a great Holiday weekend - keep warm.


From MesoWest (Univ. of Utah) temperatures at 7:30 am MST this morning - above southeast Arizona and below metro Tucson area. Definitely a hard freeze underway most locations. Temperature here at house, along the Rillito wash, was 19 F at 7:00 am. The cold site west of Tombstone was reporting 7 F!



Yesterday afternoon the NWS radar was tracking a large plume of chaff emanating from the Goldwater Ranges - first that really caught my eye in quite sometime (above image from about 4:30 pm and there is a second small plume northwest of the large echo area). Concurrent visible satellite image shows mostly clear skies.

Safford was reporting a strange surface observation at this time - light rain and clear skies see obs at bottom. 



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