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Flood Watch as Sierra Thunderstorms Persist With Another Round Expected Wednesday

Monsoonal moisture is driving afternoon storms that threaten the Tahoe-Donner Summit area with heavy rain, lightning, small hail.

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Overview

  • The National Weather Service has a Flood Watch for the Sierra eastern slope, including Truckee and the Lake Tahoe area.
  • Storms Tuesday developed from late morning into evening, including isolated cells north of Sacramento and near eastern Stanislaus County, with brief downpours, lightning and small hail.
  • Forecasters expect another pulse Wednesday, with thunderstorms popping up after noon and lingering through sunset from Lassen to Mono counties.
  • The Valley and Foothills are forecast to stay mostly dry and seasonably warm, with highs in the low to mid 90s.
  • One more round is possible Thursday mainly east of Lake Tahoe before a drier pattern returns for the weekend.