Monday, January 11, 2021

January 11th Miscellany

View this early morning looking east from Santiago Peak, near LA (from Jack Hales webcam page), looks almost like the mother ship from Close Encounters. IR image below at 14 UTC shows a long, thin, tail cloud hanging over northern Baja and Southern California. Map (second below) shows the location of Santiago Peak.

Here in Tucson, we had a bit of sunrise color over the Catalinas at 7:20 am MST. Cloud cover during night helped keep morning lows above freezing here at house (36 F today) for the first time this year.

Forecast 10-m winds valid at 10 am today (above from the 06 UTC WRF-GFS run at Atmo) indicates some gusty east winds today . This occurs as a sharp, 500 mb short wave over southern California (12z analysis below, and GFS forecast 500 valid at 5:00 pm this afternoon second below) swings east-southeastward across southern Arizona.

Last measurable rain here at house was 0.01" on December 25th and last significant rain here was 0.25" on December 10th - so our long dry spell continues.

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