WWUS85 KBOU 012136 SPSBOU Special Weather Statement National Weather Service Denver CO 336 PM MDT Thu Jul 1 2021 COZ039-012200- Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County CO- 336 PM MDT Thu Jul 1 2021 ...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN BOULDER COUNTY UNTIL 400 PM MDT... At 335 PM MDT, Doppler radar was tracking a strong thunderstorm near Niwot, or 29 miles south of Fort Collins, moving east at 5 mph. Penny size hail and winds in excess of 40 mph will be possible with this storm. Locations impacted include... Northeastern Boulder, Longmont and Niwot. PRECAUTIONARY/PREPAREDNESS ACTIONS... Torrential rainfall is also occurring with this storm, and may lead to localized flooding. Do not drive your vehicle through flooded roadways. Frequent cloud to ground lightning is occurring with this storm. Lightning can strike 10 miles away from a thunderstorm. Seek a safe shelter inside a building or vehicle. && LAT...LON 4021 10506 4012 10505 4001 10518 4013 10531 4026 10514 TIME...MOT...LOC 2135Z 276DEG 6KT 4013 10519 $$ RPK