CW3E Post Event Summary: 22-26 September 2019

September 27, 2019

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Active synoptic pattern brings heavy rainfall and severe weather to central and southeastern Arizona

  • Portions of central and southeastern AZ received > 2 inches of rainfall during the 7-day period ending 12 UTC (5 AM PST) 27 September
  • The highest rainfall amounts (> 3 inches) occurred over the elevated terrain in Maricopa, Gila, Yavapai, Pima, Santa Cruz, and Cochise Counties
  • Roosevelt Dam (Gila County) recorded a 7-day total of 7.62 inches, with more than 6 inches falling during the 12-hour period ending 00 UTC 24 September (5 PM PST 23 September)
  • Flash flooding and severe thunderstorms were reported during the morning and afternoon of 23 September
  • Strong synoptic-dynamic forcing and moisture from the remnants of Tropical Storm Mario both played important roles in this event






Summary provided by C. Castellano, B. Kawzenuk, J. Kalansky, F. M. Ralph; 4 PM PT 27 September 2019