Storm Events Database

Event Details:

Event Heavy Rain
State IOWA
County/Area PALO ALTO
Report Source COOP Observer
NCEI Data Source CSV
Begin Date 2011-06-18 09:00:00.0 CST-6
Begin Location 1SE EMMETSBURG
Begin Lat/Lon 43.11/-94.68
End Date 2011-06-18 10:30:00.0 CST-6
End Lat/Lon 43.11/-94.68
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 A large thunderstorm complex formed to the south and west of Iowa as an inverted trough moved into western Iowa. The airmass was moderately unstable with around 2000 J/kg of CAPE and lifted indices around -5 C. There was little shear available however, under 20 kts. Precipitable water values were quite high with 1.5 to 1.75 inches along the inverted trough axis from west central into northwest Iowa. One thunderstorm from the complex to the south pushed into south central Iowa. It produced high winds in the Lamoni area, causing tree limb damage. Along the trough axis, strong thunderstorms formed. Although they were not severe, they did produce very heavy rainfall. A narrow line of 3 to 5 inches of rain extended from Crawford County into Emmet County. In Emmet County at Ringsted, 4.72 inches of rain fell in 2 hours. Three inches fell in Palo Alto County at Emmetsburg in about 90 minutes. Local flooding occurred with standing water blocking one lane of U.S. Highway 18 just east of Emmetsburg.
Event Narrative Observer reported 2.96 inches of rain in 90 minutes.


Event Map:

All events for this episode:

Location County/Zone St. Date Time T.Z. Type Mag Dth Inj PrD CrD
Totals: 0 0 2.00K 0.00K
LAMONI DECATUR CO. IA 06/18/2011 06:32 CST-6 Thunderstorm Wind 52 kts. EG 0 0 2.00K 0.00K
RINGSTED EMMET CO. IA 06/18/2011 08:30 CST-6 Heavy Rain 0 0 0.00K 0.00K
EMMETSBURG PALO ALTO CO. IA 06/18/2011 09:00 CST-6 Heavy Rain 0 0 0.00K 0.00K
Totals: 0 0 2.00K 0.00K