Issued Zones:  Coconino County …

Site:  Arizona Weather Force has issued a Severe Thunderstorm Watch effective now through midnight …

Date:  8/17/21 at 10:50am PT

Forecast: A trough of low pressure entering the Great Basin today will bring a strong upper ascent into the region along with high instability.  Thunderstorms are expected to form in a south to the north line within the watch box provided.  Storms today will be directly over Flagstaff…

Large hail between 1-2″ and damaging wind gusts will be possible.  Cannot rule out an isolated weak tornado within the Flagstaff zone so any spotters out there today … this is where to be…

Also, this includes photogenic ops for The Grand Canyon as lightning will be striking the area today and tonight … 

10 mile rule:  These alerts issued on this site
means that within your zone and 10 miles from you will see the event
forecast for.  You may or may not see the event but it means you are in
the zone or 10 miles from where someone will.

Forecaster: KM