F1 tornado in Harper County, Kansas
Tornado May 12, 2004 · Harper County, Kansas
F1
Rating
4.0 mi
Path length
125 yd
Path width
EF0EF1EF2EF3EF4EF5Unrated
NOAA recorded where this tornado touched down but not where it lifted, so it appears as a point. Other tornadoes recorded nearby that day are shown faint.
What F1 means. This tornado was rated on Fujita’s original scale, used until 2007. F1 meant moderate damage: roofs badly stripped, mobile homes pushed off foundations or overturned, windows broken; the scale paired it with winds of 73–112 mph, figures later judged too high, especially toward the top of the scale, and revised downward in the Enhanced Fujita scale. Ratings then, as now, came from the damage.
What the National Weather Service wrote
Considerable tree damage along the path. Several trees were completely uprooted.
Began near Attica (37.7000, -97.3333).
Other tornadoes from the same storm system
10 more tornadoes the National Weather Service filed under this storm episode.
F4 Harper CountyF2 Harper CountyF2 Harper CountyF2 Harper CountyF1 Harper CountyF1 Sumner CountyF1 Harper CountyF0 Harper CountyF0 Harper CountyF0 Harper County
Source: NOAA Storm Events Database, event 5391624. Narratives are written by the National Weather Service forecast office that issued the report.
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