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Storm Events Database
Event Details
| Event | Funnel Cloud |
| State | IOWA |
| County/Area | SAC |
| WFO | DMX |
| Begin Date | 06/22/2010 19:49:00 CST-6 |
| Begin Range | 1 |
| Begin Azimuth | S |
| Begin Location | LAKE VIEW |
| Begin Lat/Lon | 42.31/-95.05 |
| End Date | 06/22/2010 19:49:00 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 very unstable airmass was in place over Iowa during the late afternoon and evening of the 22nd. Surface temperatures warmed into the upper 80s to low 90s over much of the state with dew point temperatures rising into the mid 70s to low 80s. CAPE values increased to over 6000 J/kg over the southern half of the state with lifted indices around -12 C. Deep moisture flowed into the state both at low levels as well with the presence of a prominent tropical feed on the water vapor satellite imagery. Precipitable water values increased to 1.8 to 2.2 inches over southern Iowa as moisture pooled. Significant shear was present with effective shear of 45 to 60 kts over northern Iowa. Downdraft CAPE was over 1000 J/kg, while the available CAPE in the -10 to -30 C layer of the atmosphere was in the 800 to 1200 J/kg range. Hail was somewhat limited however with the freezing level between 14,500 and 15,500 feet. Temperatures at the 700 mb level rose to +15 C over southwest Iowa by evening. A strong upper level shortwave lifted northeast out of Colorado during the overnight into the early morning hours of the 22nd into the 23rd. A cold front approached Iowa from the northwest and moved into the northwestern counties by sunrise on the 23rd. Thunderstorms were slow to develop initially due to a strong cap in place over the state. After sunset, explosive development took place over northwest into north central Iowa. Several tornadoes touched down over northern Iowa. None of them were on the ground for an extended period of time however. One touched down in the Sac City area of Sac County, another in Humboldt west of Humboldt. A third tornado was on the ground for a few minutes in the Eagle Grove area. A brief touchdown occurred in Franklin County north of Iowa Falls. A tornado touched down just west of Tripoli. It obliterated an abandoned barn with a brief touchdown. The tornado was one of the stronger of the day at EF1 strength. Funnel clouds were numerous in spite of the darkness due to the vivid lightning and the ability to see them. There were several hail reports, with some of the hail reaching golf ball in size in Winnebago and Kossuth Counties. High winds were a more significant problem with the event as it developed in to an upscale MCC. Numerous reports of downed trees and power lines were received. A semi was overturned on I-35 at milepost 154 by high wind, with another 10 miles farther north. Damage to homes and barns was reported in Bremer and Black Hawk Counties as well. One storm produced a narrow microburst just west of Tripoli with winds estimated at 95 to 100 MPH based on a NWS storm survey. Three homes were damaged with 2 of them serious. Some outbuildings were also damaged by this microburst. The storms also produced very heavy rainfall. Flash flooding took place in several counties, including Wright, Franklin, and Palo Alto. Extensive street flooding took place in Clarion in Wright County with power out in most of the city. In addition, U.S. Highway 69 and Iowa Highway 3 were under water. U.S. Highway 18 was overtopped by high water in 2 places between Spencer and Emmetsburg in Palo Alto County. Roads were under water near Sheffield in Franklin County. Rainfall was heavy with amounts of 4 to 7 inches reported in a band extending from eastern Palo Alto, through Humboldt and Wright Counties, into Franklin County. Heavy rain flooded roads and resulted in evacuations in the town of Dumont in Butler County. The rain fell in just a few hours time. Following the flash flooding, areal flooding continued in parts of the area with highways remaining closed. Some local flooding was also reported in Warren County, east of the Carlisle area. |
| Event Narrative |
All events for this episode:
| Location | County/Zone | St. | Date | Time | T.Z. | Type | Mag | Dth | Inj | PrD | CrD |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Totals: | 0 | 0 | 1.839M | 102.00K | |||||||
| LAKE VIEW | SAC CO. | IA | 06/22/2010 | 19:49 | CST-6 | Funnel Cloud | 0 | 0 | 0.00K | 0.00K | |
| UNIQUE | HUMBOLDT CO. | IA | 06/22/2010 | 20:12 | CST-6 | Tornado | EF0 | 0 | 0 | 0.00K | 2.00K |
| LYTTON | SAC CO. | IA | 06/22/2010 | 20:15 | CST-6 | Tornado | EF0 | 0 | 0 | 0.00K | 5.00K |
| LYTTON | SAC CO. | IA | 06/22/2010 | 20:37 | CST-6 | Funnel Cloud | 0 | 0 | 0.00K | 0.00K | |
| GERMAN VLY | KOSSUTH CO. | IA | 06/22/2010 | 20:49 | CST-6 | Hail | 1.75 in. | 0 | 0 | 5.00K | 10.00K |
| DAKOTA CITY | HUMBOLDT CO. | IA | 06/22/2010 | 20:50 | CST-6 | Thunderstorm Wind | 57 kts. EG | 0 | 0 | 10.00K | 0.00K |
| POMEROY | CALHOUN CO. | IA | 06/22/2010 | 20:55 | CST-6 | Hail | 0.88 in. | 0 | 0 | 0.00K | 0.00K |
| BUFFALO CENTER | WINNEBAGO CO. | IA | 06/22/2010 | 20:57 | CST-6 | Hail | 1.75 in. | 0 | 0 | 10.00K | 25.00K |
| RENWICK MUNI ARPT | HUMBOLDT CO. | IA | 06/22/2010 | 21:00 | CST-6 | Heavy Rain | 0 | 0 | 0.00K | 0.00K | |
| THOR | HUMBOLDT CO. | IA | 06/22/2010 | 21:10 | CST-6 | Funnel Cloud | 0 | 0 | 0.00K | 0.00K | |
| POMEROY | CALHOUN CO. | IA | 06/22/2010 | 21:10 | CST-6 | Thunderstorm Wind | 50 kts. EG | 0 | 0 | 2.00K | 0.00K |
| THOR | HUMBOLDT CO. | IA | 06/22/2010 | 21:10 | CST-6 | Funnel Cloud | 0 | 0 | 0.00K | 0.00K | |
| EAGLE GROVE ARPT | WRIGHT CO. | IA | 06/22/2010 | 21:25 | CST-6 | Tornado | EF0 | 0 | 0 | 0.00K | 5.00K |
| EAGLE GROVE | WRIGHT CO. | IA | 06/22/2010 | 21:30 | CST-6 | Thunderstorm Wind | 52 kts. EG | 0 | 0 | 5.00K | 0.00K |
| EAGLE GROVE | WRIGHT CO. | IA | 06/22/2010 | 21:30 | CST-6 | Thunderstorm Wind | 52 kts. EG | 0 | 0 | 10.00K | 0.00K |
| EAGLE GROVE | WRIGHT CO. | IA | 06/22/2010 | 21:39 | CST-6 | Funnel Cloud | 0 | 0 | 0.00K | 0.00K | |
| HOLMES | WRIGHT CO. | IA | 06/22/2010 | 21:48 | CST-6 | Thunderstorm Wind | 52 kts. EG | 0 | 0 | 5.00K | 0.00K |
| EAGLE GROVE | WRIGHT CO. | IA | 06/22/2010 | 21:50 | CST-6 | Thunderstorm Wind | 52 kts. EG | 0 | 0 | 10.00K | 0.00K |
| FT DODGE | WEBSTER CO. | IA | 06/22/2010 | 21:56 | CST-6 | Funnel Cloud | 0 | 0 | 0.00K | 0.00K | |
| CLARION | WRIGHT CO. | IA | 06/22/2010 | 21:59 | CST-6 | Thunderstorm Wind | 52 kts. EG | 0 | 0 | 10.00K | 0.00K |
| CLARION | WRIGHT CO. | IA | 06/22/2010 | 22:22 | CST-6 | Thunderstorm Wind | 52 kts. EG | 0 | 0 | 10.00K | 0.00K |
| DELOIT | CRAWFORD CO. | IA | 06/22/2010 | 22:40 | CST-6 | Thunderstorm Wind | 52 kts. EG | 0 | 0 | 2.00K | 0.00K |
| COULTER | FRANKLIN CO. | IA | 06/22/2010 | 22:50 | CST-6 | Thunderstorm Wind | 52 kts. EG | 0 | 0 | 20.00K | 0.00K |
| DOWS | WRIGHT CO. | IA | 06/22/2010 | 22:50 | CST-6 | Thunderstorm Wind | 52 kts. EG | 0 | 0 | 20.00K | 0.00K |
| LATIMER | FRANKLIN CO. | IA | 06/22/2010 | 22:52 | CST-6 | Thunderstorm Wind | 67 kts. MG | 0 | 0 | 10.00K | 0.00K |
| IOWA FALLS | HARDIN CO. | IA | 06/22/2010 | 23:11 | CST-6 | Funnel Cloud | 0 | 0 | 0.00K | 0.00K | |
| GENEVA | FRANKLIN CO. | IA | 06/22/2010 | 23:38 | CST-6 | Thunderstorm Wind | 52 kts. MG | 0 | 0 | 5.00K | 0.00K |
| FLORENCE | WRIGHT CO. | IA | 06/22/2010 | 23:40 | CST-6 | Flash Flood | 0 | 0 | 500.00K | 25.00K | |
| GENEVA | FRANKLIN CO. | IA | 06/22/2010 | 23:40 | CST-6 | Thunderstorm Wind | 52 kts. MG | 0 | 0 | 5.00K | 0.00K |
| HAMPTON MUNI ARPT | FRANKLIN CO. | IA | 06/23/2010 | 00:02 | CST-6 | Flash Flood | 0 | 0 | 100.00K | 10.00K | |
| EMMETSBURG | PALO ALTO CO. | IA | 06/23/2010 | 00:20 | CST-6 | Flash Flood | 0 | 0 | 20.00K | 0.00K | |
| AUSTINVILLE | BUTLER CO. | IA | 06/23/2010 | 00:52 | CST-6 | Thunderstorm Wind | 52 kts. EG | 0 | 0 | 5.00K | 0.00K |
| CLARION | WRIGHT CO. | IA | 06/23/2010 | 00:52 | CST-6 | Flash Flood | 0 | 0 | 50.00K | 10.00K | |
| BREMER | BREMER CO. | IA | 06/23/2010 | 01:16 | CST-6 | Thunderstorm Wind | 83 kts. EG | 0 | 0 | 350.00K | 0.00K |
| TRIPOLI | BREMER CO. | IA | 06/23/2010 | 01:16 | CST-6 | Thunderstorm Wind | 83 kts. EG | 0 | 0 | 50.00K | 0.00K |
| TRIPOLI | BREMER CO. | IA | 06/23/2010 | 01:17 | CST-6 | Thunderstorm Wind | 87 kts. EG | 0 | 0 | 50.00K | 0.00K |
| TRIPOLI | BREMER CO. | IA | 06/23/2010 | 01:18 | CST-6 | Tornado | EF1 | 0 | 0 | 10.00K | 0.00K |
| SHEFFIELD | FRANKLIN CO. | IA | 06/23/2010 | 01:20 | CST-6 | Flash Flood | 0 | 0 | 25.00K | 0.00K | |
| WATERLOO | BLACK HAWK CO. | IA | 06/23/2010 | 01:25 | CST-6 | Thunderstorm Wind | 69 kts. EG | 0 | 0 | 50.00K | 0.00K |
| SUMNER | BREMER CO. | IA | 06/23/2010 | 01:27 | CST-6 | Thunderstorm Wind | 74 kts. EG | 0 | 0 | 50.00K | 0.00K |
| SUMNER | BREMER CO. | IA | 06/23/2010 | 01:28 | CST-6 | Thunderstorm Wind | 65 kts. EG | 0 | 0 | 20.00K | 0.00K |
| WATERLOO | BLACK HAWK CO. | IA | 06/23/2010 | 01:30 | CST-6 | Thunderstorm Wind | 52 kts. EG | 0 | 0 | 25.00K | 0.00K |
| DEWAR | BLACK HAWK CO. | IA | 06/23/2010 | 01:30 | CST-6 | Thunderstorm Wind | 54 kts. EG | 0 | 0 | 10.00K | 0.00K |
| WATERLOO | BLACK HAWK CO. | IA | 06/23/2010 | 01:45 | CST-6 | Thunderstorm Wind | 57 kts. EG | 0 | 0 | 25.00K | 0.00K |
| HOLMES | WRIGHT CO. | IA | 06/23/2010 | 08:49 | CST-6 | Flood | 0 | 0 | 100.00K | 10.00K | |
| HAMPTON | FRANKLIN CO. | IA | 06/23/2010 | 08:52 | CST-6 | Flood | 0 | 0 | 10.00K | 0.00K | |
| DUMONT | BUTLER CO. | IA | 06/23/2010 | 18:33 | CST-6 | Flood | 0 | 0 | 250.00K | 0.00K | |
| Totals: | 0 | 0 | 1.839M | 102.00K |
