Severe Thunderstorm Warning Severe Thunderstorm Warning issued August 30 at 9:39PM MST until August 30 at 10:30PM MST by NWS Tucson AZ Effective 9:39 PM MST, Sun Aug 30 through 10:30 PM MST, Sun Aug 30 Seek shelter inside a well-built structure and stay away from windows. This storm is capable of producing damaging winds. Wind damage with this storm will occur before any rain or lightning. Do not wait for the sound of thunder before taking cover.… https://www.weather.gov/twc/ #Thunderstorm #SevereThunderstormWarning