Storm Events Database

Event Details:

Event Hail
Magnitude 0.88 in.
State IOWA
County/Area SAC
Report Source Trained Spotter
NCEI Data Source CSV
Begin Date 2010-09-18 02:19:00.0 CST-6
Begin Location 1SW EARLY
Begin Lat/Lon 42.46/-95.16
End Date 2010-09-18 02:19:00.0 CST-6
End Location 1SW EARLY
End Lat/Lon 42.46/-95.16
Deaths Direct/Indirect 0/0 (fatality details below, when available...)
Injuries Direct/Indirect 0/0
Property Damage 0.00K
Crop Damage 5.00K
Episode Narrative A cold front moved southeast across the state during the evening of the 17th into the early morning of the 18th. The surface front reached southeast Iowa, however the upper level front lagged behind the surface front and remained over northern Iowa. The airmass was relatively unstable for mid September, with CAPE in the 2000 to 3000 J/kg range and lifted indices around -5 to -7 C. Precipitable water values were around 1.5 inches. The effective wind shear was in the 30 to 40 kt range. Thunderstorms formed on the elevated front. Clearly, the storms were elevated in nature and produced little wind as they passed. Many of the storms produced small hail. One of the stronger storms over Sac County produced penny to nickel size hail near the town of Early. The thunderstorms continued to develop during the day. Nickel size hail fell southwest of Dow City in Crawford County during the late morning hours.
Event Narrative Trained spotter in Early reports a few minutes of dime to nickel size hail.


Event Map:

All events for this episode:

Location County/Zone St. Date Time T.Z. Type Mag Dth Inj PrD CrD
Totals: 0 0 0.00K 10.00K
EARLY SAC CO. IA 09/18/2010 02:19 CST-6 Hail 0.88 in. 0 0 0.00K 5.00K
DOW CITY CRAWFORD CO. IA 09/18/2010 09:55 CST-6 Hail 0.88 in. 0 0 0.00K 5.00K
Totals: 0 0 0.00K 10.00K