Storm Events Database

Event Details:

Event Tornado
-- Scale EF0
-- Length 1.47 Miles
-- Width 25 Yards
State IOWA
County/Area GRUNDY
WFO DMX
Report Source Law Enforcement
NCEI Data Source CSV
Begin Date 2016-11-28 15:41 CST-6
Begin Location 1ESE GRUNDY CENTER ARPT
Begin Lat/Lon 42.3463/-92.834
End Date 2016-11-28 15:44 CST-6
End Location 2ENE GRUNDY CENTER ARPT
End Lat/Lon 42.3584/-92.8103
Deaths Direct/Indirect 0/0 (fatality details below, when available...)
Injuries Direct/Indirect 0/0
Property Damage 0.00K
Crop Damage 0.00K
Episode Narrative Mini-supercells developed in a narrow corridor of weak surface based instability and effective helicities around 50-100 m2/s2. These parameters would typically be considered quite weak for Iowa but given it was the end of November, these values were decent and assisted by good dynamics. Five tornadoes occurred during the afternoon, many with intermittent tracks but with plenty of spotter reports and visual evidence to substatiate their occurrence.
Event Narrative Weak tornado occurred west of Grundy Center and remained in farm fields with little if any 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
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All events for this episode:

Location County/Zone St. Date Time T.Z. Type Mag Dth Inj PrD CrD
Totals: 0 0 8.00K 0.00K
RADCLIFFE HARDIN CO. IA 11/28/2016 12:44 CST-6 Tornado EF0 0 0 5.00K 0.00K
FERN GRUNDY CO. IA 11/28/2016 15:31 CST-6 Funnel Cloud 0 0 0.00K 0.00K
FERN GRUNDY CO. IA 11/28/2016 15:38 CST-6 Tornado EF0 0 0 0.00K 0.00K
GRUNDY CENTER ARPT GRUNDY CO. IA 11/28/2016 15:41 CST-6 Tornado EF0 0 0 0.00K 0.00K
PARKERSBURG BUTLER CO. IA 11/28/2016 15:43 CST-6 Tornado EF0 0 0 3.00K 0.00K
AVERY MONROE CO. IA 11/28/2016 15:44 CST-6 Hail 0.75 in. 0 0 0.00K 0.00K
NEW SHARON MAHASKA CO. IA 11/28/2016 16:11 CST-6 Tornado EF0 0 0 0.00K 0.00K
FOREST HOME POWESHIEK CO. IA 11/28/2016 16:15 CST-6 Tornado EF0 0 0 0.00K 0.00K
MONTEZUMA POWESHIEK CO. IA 11/28/2016 16:25 CST-6 Funnel Cloud 0 0 0.00K 0.00K
MONTEZUMA SIG ARPT POWESHIEK CO. IA 11/28/2016 16:30 CST-6 Tornado EF0 0 0 0.00K 0.00K
Totals: 0 0 8.00K 0.00K