Parkersburg–New Hartford tornado, 25 May 2008Photo: Rod Donovan / National Weather Service · Source · Public domain. WebP conversion; aspect ratio preserved.- Location
- Parkersburg–New Hartford, Iowa
- Official rating
- EF5 Damage-based rating
- Local time · 25 May 2008
- 16:48–17:58 CDT (UTC−5)
- UTC
- 2008-05-25 21:48 – 2008-05-25 22:58 UTC
- Time on the ground
- 70 minutes
- Track length
- 43 mi
- Maximum width
- 1.2 mi
- Survey wind estimate
- 205 mph
Event & radar context
The NWS timeline records touchdown at 16:48 CDT and dissipation at 17:58 CDT. Width varied along the track, reaching about 1.2 miles north of Dunkerton. These scans predate RhoHV. KDMX files stop before the tornado in the public archive for this date; KDVN supplies the complete sequence. At this distance the lowest beam samples well above the ground.
Interpreting the rating
F, EF and IF are different damage-rating scales. Original source labels are preserved. Badge colours group the numerical categories for browsing; they do not imply identical wind thresholds. Radar products do not directly establish the damage rating.
Event facts: National Weather Service review ↗