CW3E Event Summary: 23-25 September 2019

September 25, 2019

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Active synoptic pattern brings heavy rainfall to central and southeastern Arizona

  • A large swath of central AZ received over 1.5 inches of rainfall during the 24-hour period ending 12 UTC (5 AM PST) 24 Sep
  • The highest rainfall amounts (> 3 inches) occurred over the elevated terrain in Maricopa, Gila, and Yavapai Counties
  • Roosevelt Dam (Gila County) recorded 7.55 inches during the 48-hour period ending 17 UTC (10 AM PST) 24 Sep
  • Localized flash flooding, hail, and damaging winds were also reported during the evening of 23 September
  • Additional heavy rainfall and thunderstorms are expected over the next couple of days, primarily in southeastern Arizona
  • 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; 2 PM PT 25 September 2019