CW3E Event Summary: 21-23 February 2020
February 25, 2020
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Cutoff low and landfalling AR bring heavy rainfall and mountain snowfall to southwestern U.S.
- Southern Arizona experienced weak-to-moderate AR conditions for more than 24 hours [AR1/AR2 based on the Ralph et al. (2019) AR Scale]
- Some locations in central AZ received more than 2 inches of total precipitation from this event
- Significant snowfall (> 8 inches) also occurred over the higher terrain in south-central UT and central CO
MIMIC-TPW2 Total Precipitable Water
Valid 1200 UTC 20 February – 1200 UTC 23 February
Images from CIMSS/Univ. of Wisconsin
Valid 2201 UTC 21 February – 0001 UTC 22 February
Images from NOAA/NESDIS/STAR and CIRA/NOAA
Summary provided by C. Castellano, C. Hecht, B. Kawzenuk, N. Oakley, and F. M. Ralph; 25 February 2020