Storm Events Database

Event Details

Event Funnel Cloud
State IOWA
County/Area PALO ALTO
WFO DMX
Report Source Public
NCDC Data Source CSV
Begin Date 2010-06-01 13:34:00.0 CST-6
Begin Location 5NW DEPEW
Begin Lat/Lon 43.24/-94.62
End Date 2010-06-01 13:34:00.0 CST-6
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 cold front moved into Iowa from the northwest, while a warm front pushed into the southwest part of Iowa from the south during the afternoon and evening hours. Initially the airmass was very dry, however a strong push of moisture increased surface dew points into the upper 60s to low 70s by mid afternoon. Precipitable water values increased to 1.25 to 1.5 inches. The atmosphere destabilized by mid to late afternoon. Most unstable CAPE increased to 5000 J/kg as the lifted index fell to -9 to -12 C. The freezing level was relative low, around 12,000 feet. Available CAPE in the -10 to -30 C layer of the atmosphere increased to between 500 and 1000 J/kg. Downdraft CAPE was between 800 and 1000 J/kg. The atmosphere was moderately sheared with 40 to 55 kts of effective shear in the near storm environment. With the relatively dry air initially on the leading edge of the developing storms, the LCL was a relatively high 1500 meters. Thunderstorms formed in two areas. The first was over northwest Iowa along the cold frontal boundary. The second area developed over eastern Nebraska and tracked east in the warm advection area along and north of the warm frontal boundary. The two areas of storms combined during the evening hours, becoming a full fledged MCC by mid evening. All modes of severe weather occurred with this system, though the predominate mode was large hail. Thunderstorms formed rapidly along the warm frontal boundary during the mid and late afternoon. Hail up to baseball size was reported in southwest Iowa with these storms. Rapid intensification led to golf ball and larger hail in Taylor, Ringgold, Adams, and Union Counties. One of the storms produced a tornado as it moved through Ringgold County in the Tingley area. A large farmstead was hit, causing $4,000,000 damage. Eight buildings were damaged or destroyed, as well as the farmstead itself. Based upon extensive destruction to a 400 foot long metal cattle barn on the farmstead, it was determined that the tornado was of EF-2 strength with winds of up to 130 MPH. Other buildings, including the home, received extensive damage but not as widespread. Three head of cattle were killed when the cattle barn was destroyed. During the early evening the storm system transitioned into more of a high wind event. Several reports of 50 to 70 MPH winds were received. A wind gust in excess of 60 MPH threw house debris onto the street in Ottumwa. The storms produced heavy rainfall of 2 inches or more per hour. Fortunately they were moving relatively quickly. Storms trained over parts of Guthrie County. Over 4 inches of rain fell north and west of Guthrie Center. The heavy rainfall caused minor flooding with ditches filled and minor road flooding. A small area of flash flooding was reported along Seely Creek in Guthrie County with water a few feet over the road. Lightning caused at least two house fires. A house was struck east of Des Moines by one thunderstorm. The house was set on fire by the lightning. A second house was struck and set ablaze north of Ankeny.
Event Narrative Relayed by Emergency Management.


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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 4.512M 295.00K
DEPEW PALO ALTO CO. IA 06/01/2010 13:34 CST-6 Funnel Cloud 0 0 0.00K 0.00K
WELLINGFORD EMMET CO. IA 06/01/2010 13:36 CST-6 Hail 1.00 in. 0 0 5.00K 5.00K
RALEIGH EMMET CO. IA 06/01/2010 14:00 CST-6 Hail 0.75 in. 0 0 0.00K 5.00K
BENTON RINGGOLD CO. IA 06/01/2010 15:25 CST-6 Hail 1.75 in. 0 0 10.00K 10.00K
MERCER ADAMS CO. IA 06/01/2010 15:25 CST-6 Hail 2.00 in. 0 0 10.00K 10.00K
CLEARFIELD TAYLOR CO. IA 06/01/2010 15:26 CST-6 Hail 2.00 in. 0 0 50.00K 10.00K
CLEARFIELD RINGGOLD CO. IA 06/01/2010 15:30 CST-6 Hail 2.75 in. 0 0 50.00K 10.00K
CORNING ADAMS CO. IA 06/01/2010 15:35 CST-6 Hail 1.75 in. 0 0 25.00K 0.00K
CORNING ADAMS CO. IA 06/01/2010 15:36 CST-6 Hail 1.75 in. 0 0 25.00K 0.00K
KNOWLTON RINGGOLD CO. IA 06/01/2010 15:37 CST-6 Hail 1.00 in. 0 0 5.00K 10.00K
ARISPE UNION CO. IA 06/01/2010 15:45 CST-6 Hail 1.75 in. 0 0 10.00K 10.00K
FAULKNER FRANKLIN CO. IA 06/01/2010 15:45 CST-6 Hail 0.75 in. 0 0 0.00K 5.00K
WILLIAMSON ADAMS CO. IA 06/01/2010 15:57 CST-6 Hail 1.50 in. 0 0 5.00K 5.00K
TINGLEY RINGGOLD CO. IA 06/01/2010 16:00 CST-6 Hail 1.75 in. 0 0 25.00K 5.00K
WILLIAMSON ADAMS CO. IA 06/01/2010 16:05 CST-6 Hail 1.00 in. 0 0 1.00K 5.00K
TINGLEY RINGGOLD CO. IA 06/01/2010 16:08 CST-6 Tornado EF2 0 0 4.000M 10.00K
ELLSTON RINGGOLD CO. IA 06/01/2010 16:15 CST-6 Thunderstorm Wind 56 kts. EG 0 0 10.00K 0.00K
ELLSTON RINGGOLD CO. IA 06/01/2010 16:15 CST-6 Hail 2.00 in. 0 0 25.00K 100.00K
ORIENT ADAIR CO. IA 06/01/2010 16:21 CST-6 Hail 0.75 in. 0 0 0.00K 5.00K
FANSLERS GUTHRIE CO. IA 06/01/2010 16:30 CST-6 Heavy Rain 0 0 0.00K 0.00K
ROSSERDALE ADAIR CO. IA 06/01/2010 16:50 CST-6 Hail 1.25 in. 0 0 10.00K 50.00K
FANSLERS GUTHRIE CO. IA 06/01/2010 17:00 CST-6 Heavy Rain 0 0 0.00K 0.00K
FISCUS AUDUBON CO. IA 06/01/2010 17:10 CST-6 Hail 1.25 in. 0 0 5.00K 5.00K
PANORA GUTHRIE CO. IA 06/01/2010 17:35 CST-6 Hail 1.25 in. 0 0 3.00K 5.00K
GUTHRIE CENTER GUTHRIE CO. IA 06/01/2010 17:54 CST-6 Hail 0.88 in. 0 0 1.00K 5.00K
AVERY MONROE CO. IA 06/01/2010 18:06 CST-6 Thunderstorm Wind 52 kts. EG 0 0 2.00K 0.00K
ATLANTIC CASS CO. IA 06/01/2010 18:08 CST-6 Heavy Rain 0 0 0.00K 0.00K
(OTM)OTTUMWA INDSTRL WAPELLO CO. IA 06/01/2010 18:21 CST-6 Thunderstorm Wind 53 kts. MG 0 0 1.00K 0.00K
CAPITOL HGTS POLK CO. IA 06/01/2010 18:23 CST-6 Lightning 0 0 20.00K 0.00K
DEWEY CASS CO. IA 06/01/2010 18:25 CST-6 Thunderstorm Wind 56 kts. EG 0 0 5.00K 0.00K
GREENFIELD ADAIR CO. IA 06/01/2010 18:45 CST-6 Thunderstorm Wind 52 kts. EG 0 0 3.00K 0.00K
OTTUMWA WAPELLO CO. IA 06/01/2010 18:50 CST-6 Thunderstorm Wind 57 kts. EG 0 0 10.00K 0.00K
PRESCOTT ADAMS CO. IA 06/01/2010 19:00 CST-6 Thunderstorm Wind 61 kts. EG 0 0 10.00K 0.00K
PRESCOTT ADAMS CO. IA 06/01/2010 19:00 CST-6 Thunderstorm Wind 52 kts. EG 0 0 2.00K 0.00K
NEW MARKET TAYLOR CO. IA 06/01/2010 19:24 CST-6 Thunderstorm Wind 50 kts. EG 0 0 2.00K 0.00K
BEDFORD TAYLOR CO. IA 06/01/2010 19:35 CST-6 Thunderstorm Wind 52 kts. MG 0 0 5.00K 0.00K
BEDFORD TAYLOR CO. IA 06/01/2010 19:35 CST-6 Thunderstorm Wind 52 kts. EG 0 0 10.00K 0.00K
GRAVITY TAYLOR CO. IA 06/01/2010 19:35 CST-6 Hail 0.88 in. 0 0 1.00K 5.00K
GRAVITY TAYLOR CO. IA 06/01/2010 19:35 CST-6 Thunderstorm Wind 52 kts. EG 0 0 10.00K 0.00K
CONWAY TAYLOR CO. IA 06/01/2010 19:41 CST-6 Thunderstorm Wind 61 kts. EG 0 0 5.00K 0.00K
ST MARYS WARREN CO. IA 06/01/2010 19:44 CST-6 Funnel Cloud 0 0 0.00K 0.00K
MEDORA WARREN CO. IA 06/01/2010 19:47 CST-6 Thunderstorm Wind 65 kts. EG 0 0 10.00K 0.00K
MEDORA WARREN CO. IA 06/01/2010 19:47 CST-6 Thunderstorm Wind 65 kts. EG 0 0 10.00K 0.00K
INDIANOLA ARPT WARREN CO. IA 06/01/2010 19:48 CST-6 Thunderstorm Wind 69 kts. EG 0 0 25.00K 0.00K
REDDING RINGGOLD CO. IA 06/01/2010 19:55 CST-6 Hail 1.00 in. 0 0 5.00K 20.00K
LACONA WARREN CO. IA 06/01/2010 20:05 CST-6 Thunderstorm Wind 50 kts. EG 0 0 3.00K 0.00K
GARDEN GROVE DECATUR CO. IA 06/01/2010 20:13 CST-6 Thunderstorm Wind 65 kts. EG 0 0 40.00K 0.00K
LAMONI DECATUR CO. IA 06/01/2010 20:25 CST-6 Thunderstorm Wind 65 kts. EG 0 0 10.00K 0.00K
PANORA GUTHRIE CO. IA 06/01/2010 20:30 CST-6 Flash Flood 0 0 5.00K 0.00K
RUSSELL LUCAS CO. IA 06/01/2010 20:30 CST-6 Thunderstorm Wind 61 kts. EG 0 0 10.00K 0.00K
ANKENY POLK CO. IA 06/01/2010 20:36 CST-6 Lightning 0 0 20.00K 0.00K
EDDYVILLE WAPELLO CO. IA 06/01/2010 20:52 CST-6 Thunderstorm Wind 50 kts. MG 0 0 2.00K 0.00K
OSKALOOSA MAHASKA CO. IA 06/01/2010 20:55 CST-6 Thunderstorm Wind 52 kts. EG 0 0 1.00K 0.00K
EDDYVILLE WAPELLO CO. IA 06/01/2010 21:02 CST-6 Thunderstorm Wind 50 kts. MG 0 0 2.00K 0.00K
KIRKVILLE WAPELLO CO. IA 06/01/2010 21:15 CST-6 Thunderstorm Wind 52 kts. EG 0 0 5.00K 0.00K
BLOOMFIELD ARPT DAVIS CO. IA 06/01/2010 21:45 CST-6 Thunderstorm Wind 52 kts. EG 0 0 3.00K 0.00K
Totals: 0 0 4.512M 295.00K