Storm Events Database

Event Details

Event Hail
Magnitude 1.00 in.
State IOWA
County/Area SAC
Report Source Trained Spotter
NCDC Data Source CSV
Begin Date 2012-05-23 19:30:00.0 CST-6
Begin Location 4NW WALL LAKE
Begin Lat/Lon 42.31/-95.16
End Date 2012-05-23 19:30:00.0 CST-6
Deaths Direct/Indirect 0/0 (fatality details below, when available...)
Injuries Direct/Indirect 0/0
Property Damage 2.00K
Crop Damage 5.00K
Episode Narrative A cold front moved slowly into Iowa from the northwest as an upper level shortwave lifted northeast across the area. The atmosphere was marginally unstable with afternoon highs reaching the mid to upper 80s and dewpoint readings in the upper 50s to low 60s. The lifted index was just 0 to -3 C by early evening. CAPE was limited to around 1000 J/kg. With relatively dry air in place, downdraft CAPE was around 1200 J/kg. CAPE in the -10 to -30 C layer of the atmosphere was between 200 and 400 J/kg, but the freezing level was around 15,000 feet. There was sufficient shear available with 50 to 55 kts present. A narrow area of higher precipitable water values moved into the state by evening, with 1.25 to 1.5 inches available. A line of thunderstorms moved into west central and northwest Iowa during the early evening. One of the storms produced severe weather with quarter size hail in Sac County. High winds also occurred with damage from east of Odebolt to Early to Lake View. Numerous power poles were blown down, roofs were taken from outbuildings including turkey and hog confinements. Boats were thrown at a dealership. In the Lake View area, a tree fell and killed a dog. There were no other injuries. Prior to the storms moving into Sac County, wind damage was reported in Crawford County in the Ricketts area. Several trees were blown down.
Event Narrative


All events for this episode:

Location County/Zone St. Date Time T.Z. Type Mag Dth Inj PrD CrD
Totals: 0 0 470.00K 10.00K
RICKETTS CRAWFORD CO. IA 05/23/2012 18:10 CST-6 Thunderstorm Wind 55 kts. EG 0 0 10.00K 0.00K
RICKETTS CRAWFORD CO. IA 05/23/2012 18:12 CST-6 Hail 0.88 in. 0 0 0.00K 0.00K
ODEBOLT SAC CO. IA 05/23/2012 18:40 CST-6 Hail 1.00 in. 0 0 3.00K 5.00K
ODEBOLT SAC CO. IA 05/23/2012 19:16 CST-6 Thunderstorm Wind 69 kts. EG 0 0 250.00K 0.00K
WALL LAKE SAC CO. IA 05/23/2012 19:30 CST-6 Hail 1.00 in. 0 0 2.00K 5.00K
LAKE VIEW SAC CO. IA 05/23/2012 19:32 CST-6 Thunderstorm Wind 78 kts. EG 0 0 200.00K 0.00K
LAKE VIEW SAC CO. IA 05/23/2012 19:40 CST-6 Thunderstorm Wind 54 kts. MG 0 0 5.00K 0.00K
Totals: 0 0 470.00K 10.00K