Denver/Boulder, CO
Weather Forecast Office
Severe Weather Outbreak on September 11th, 2019
Severe thunderstorms developed north of Denver, by late afternoon, and then tracked east northeast across the plains through early Wednesday evening. Several reports of large hail, up to baseballs at times, along with strong winds occurred in some areas.
Two brief EF2 tornadoes occurred early Wednesday evening west Northwest of Fleming, Colorado. Tornado #1 snapped power poles while tornado #2 demolished a well constructed pole barn.
.TORNADO #1... RATING: EF-2 ESTIMATED PEAK WIND: 118 MPH PATH LENGTH /STATUTE/: 0.5 MILES PATH WIDTH /MAXIMUM/: 50 YARDS FATALITIES: 0 INJURIES: 0 DATE: 09/11/2019 TIME: 703 to 704 PM MDT LOCATION: 9 MILES WEST NORTHWEST OF FLEMING, COLORADO .TORNADO #2... RATING: EF-2 ESTIMATED PEAK WIND: 112 MPH PATH LENGTH /STATUTE/: 0.5 MILES PATH WIDTH /MAXIMUM/: 50 YARDS FATALITIES: 0 INJURIES: 0 DATE: 09/11/2019 TIME: 705 to 706 PM MDT LOCATION: 6 MILES WEST NORTHWEST OF FLEMING, COLORADO EF SCALE: THE ENHANCED FUJITA SCALE CLASSIFIES TORNADOES INTO THE FOLLOWING CATEGORIES. EF0...WEAK......65 TO 85 MPH EF1...WEAK......86 TO 110 MPH EF2...STRONG....111 TO 135 MPH EF3...STRONG....136 TO 165 MPH EF4...VIOLENT...166 TO 200 MPH EF5...VIOLENT...>200 MPH NOTE: THE INFORMATION IN THIS STATEMENT IS PRELIMINARY AND SUBJECT TO CHANGE PENDING FINAL REVIEW OF THE EVENT AND PUBLICATION IN NWS STORM DATA.
Radar Loop from late Wednesday afternoon through Wednesday evening.
Preliminary Storm Reports for September 11th
Logan County, Colorado tornado tracks.
Colorado storm reports.
US Dept of Commerce
National Oceanic and Atmospheric Administration
National Weather Service
Denver/Boulder, CO
325 Broadway
Boulder, CO 80305-3328
303-494-3210 for a recording call 303-494-4221
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