Storm Events Database

Storm Events Database

Event Details:

Event Tornado
-- Scale EF0
-- Length 1.65 Miles
-- Width 50 Yards
State IOWA
County/Area FLOYD
WFO ARX
Report Source Trained Spotter
NCEI Data Source CSV
Begin Date 2016-09-21 17:32 CST-6
Begin Location 2WSW POWERSVILLE
Begin Lat/Lon 42.9155/-92.7308
End Date 2016-09-21 17:35 CST-6
End Location 1WNW POWERSVILLE
End Lat/Lon 42.9341/-92.7105
Deaths Direct/Indirect 0/0 (fatality details below, when available...)
Injuries Direct/Indirect 0/0
Property Damage 3.00K
Crop Damage 3.00K
Episode Narrative Thunderstorms with high winds and extremely heavy rain moved across northeast Iowa during the evening of September 21st into the early morning of the 22nd. Winds of 60 to 70 mph occurred near Rockford (Floyd County) and Nora Springs (Floyd County). A small tornado touched down west of Nashua (Floyd County) and produced some crop damage. Flash flooding caused water to cover most roads over the southern two-thirds of Floyd County along with the southern sections of Chickasaw County and mudslides occurred across Allamakee County. The Governor of Iowa signed a disaster proclamation because of all the flooding in September for Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard, Mitchell and Winneshiek Counties and a federal disaster declaration was made for the same counties.
Event Narrative A weak tornado touched down west of Nashua. The tornado moved through rural areas producing only some crop damage.


     ​

Event Map:

Note: The tornado track is approximate based on the beginning (B) and ending (E) locations. The actual tornado path may differ from a straight line.
+-
Measure
Leaflet | Tiles © Esri — Esri, DeLorme, NAVTEQ, TomTom, Intermap, iPC, USGS, FAO, NPS, NRCAN, GeoBase, Kadaster NL, Ordnance Survey, Esri Japan, METI, Esri China (Hong Kong), and the GIS User Community


All events for this episode:

Location County/Zone St. Date Time T.Z. Type Mag Dth Inj PrD CrD
Totals: 0 0 440.00K 46.00K
NEW ALBIN ALLAMAKEE CO. IA 09/21/2016 06:30 CST-6 Flash Flood 0 0 13.00K 33.00K
NORA SPGS FLOYD CO. IA 09/21/2016 14:20 CST-6 Heavy Rain 0 0 0.00K 0.00K
CHARLES CITY FLOYD CO. IA 09/21/2016 15:00 CST-6 Heavy Rain 0 0 0.00K 0.00K
NORA SPGS FLOYD CO. IA 09/21/2016 15:13 CST-6 Thunderstorm Wind 57 kts. MG 0 0 0.00K 0.00K
CHARLES CITY ARPT FLOYD CO. IA 09/21/2016 15:15 CST-6 Heavy Rain 0 0 0.00K 0.00K
NORA SPGS FLOYD CO. IA 09/21/2016 15:25 CST-6 Thunderstorm Wind 50 kts. EG 0 0 10.00K 0.00K
CHICKASAW CHICKASAW CO. IA 09/21/2016 15:35 CST-6 Heavy Rain 0 0 0.00K 0.00K
NORA SPGS FLOYD CO. IA 09/21/2016 16:06 CST-6 Thunderstorm Wind 52 kts. EG 0 0 1.00K 0.00K
ROCKFORD FLOYD CO. IA 09/21/2016 16:06 CST-6 Hail 1.50 in. 0 0 0.00K 0.00K
ROCKFORD FLOYD CO. IA 09/21/2016 16:10 CST-6 Thunderstorm Wind 52 kts. EG 0 0 1.00K 0.00K
NEW HAMPTON CHICKASAW CO. IA 09/21/2016 16:25 CST-6 Heavy Rain 0 0 0.00K 0.00K
ST ANSGAR MITCHELL CO. IA 09/21/2016 16:30 CST-6 Heavy Rain 0 0 0.00K 0.00K
AUREOLA FLOYD CO. IA 09/21/2016 16:33 CST-6 Thunderstorm Wind 61 kts. EG 0 0 0.00K 0.00K
CARRVILLE FLOYD CO. IA 09/21/2016 16:35 CST-6 Heavy Rain 0 0 0.00K 0.00K
MARBLE ROCK FLOYD CO. IA 09/21/2016 16:50 CST-6 Thunderstorm Wind 50 kts. EG 0 0 2.00K 0.00K
RICEVILLE HOWARD CO. IA 09/21/2016 17:10 CST-6 Heavy Rain 0 0 0.00K 0.00K
MARBLE ROCK FLOYD CO. IA 09/21/2016 17:20 CST-6 Thunderstorm Wind 52 kts. EG 0 0 50.00K 0.00K
POWERSVILLE FLOYD CO. IA 09/21/2016 17:32 CST-6 Tornado EF0 0 0 3.00K 3.00K
WAUCOMA FAYETTE CO. IA 09/21/2016 18:25 CST-6 Heavy Rain 0 0 0.00K 0.00K
DORCHESTER ALLAMAKEE CO. IA 09/21/2016 18:30 CST-6 Heavy Rain 0 0 0.00K 0.00K
FOLKERTS FLD ARPT FLOYD CO. IA 09/21/2016 18:30 CST-6 Flash Flood 0 0 0.00K 0.00K
AUREOLA FLOYD CO. IA 09/21/2016 18:44 CST-6 Thunderstorm Wind 52 kts. MG 0 0 0.00K 0.00K
MARBLE ROCK FLOYD CO. IA 09/21/2016 18:44 CST-6 Thunderstorm Wind 61 kts. MG 0 0 0.00K 0.00K
OTRANTO MITCHELL CO. IA 09/21/2016 19:00 CST-6 Flash Flood 0 0 0.00K 0.00K
DECORAH TATRO ARPT WINNESHIEK CO. IA 09/22/2016 01:05 CST-6 Flash Flood 0 0 56.00K 0.00K
WAUKON JCT ALLAMAKEE CO. IA 09/22/2016 03:34 CST-6 Flash Flood 0 0 10.00K 0.00K
QUANDAHL MITCHELL CO. IA 09/22/2016 03:39 CST-6 Flood 0 0 0.00K 0.00K
CHESTER ALLAMAKEE CO. IA 09/22/2016 03:50 CST-6 Flood 0 0 0.00K 0.00K
HAWKEYE FAYETTE CO. IA 09/22/2016 03:51 CST-6 Flash Flood 0 0 200.00K 0.00K
ELDORADO FAYETTE CO. IA 09/22/2016 03:55 CST-6 Flood 0 0 0.00K 0.00K
NASHUA CHICKASAW CO. IA 09/22/2016 03:56 CST-6 Flash Flood 0 0 48.00K 5.00K
VERNON SPGS HOWARD CO. IA 09/22/2016 05:34 CST-6 Flood 0 0 5.00K 0.00K
SPILLVILLE WINNESHIEK CO. IA 09/22/2016 05:55 CST-6 Flood 0 0 0.00K 0.00K
CLERMONT FAYETTE CO. IA 09/22/2016 06:35 CST-6 Flood 0 0 0.00K 0.00K
MONONA CLAYTON CO. IA 09/22/2016 06:43 CST-6 Flash Flood 0 0 10.00K 0.00K
ELKADER CLAYTON CO. IA 09/22/2016 07:25 CST-6 Flood 0 0 2.00K 5.00K
CHARLES CITY FLOYD CO. IA 09/22/2016 08:10 CST-6 Flood 0 0 15.00K 0.00K
OSAGE MITCHELL CO. IA 09/22/2016 12:30 CST-6 Flood 0 0 2.00K 0.00K
GARBER CLAYTON CO. IA 09/22/2016 13:10 CST-6 Flood 0 0 12.00K 0.00K
Totals: 0 0 440.00K 46.00K