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Storm Events Database
Event Details
| Event | Hail |
| Magnitude | 0.75 in. |
| State | IOWA |
| County/Area | GRUNDY |
| WFO | DMX |
| Begin Date | 06/14/2008 13:23:00 CST-6 |
| Begin Range | 1 |
| Begin Azimuth | S |
| Begin Location | BEAMAN |
| Begin Lat/Lon | 42.22/-92.82 |
| End Date | 06/14/2008 13:23:00 CST-6 |
| 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 weak trough of low pressure swept southeast across Iowa during the day on the 14th. The airmass became unstable with lifted indices falling to the -5 to -7 C. range. About 1000 J/kg of uncapped cape was available by mid day with about 35 kts of effective shear. Moisture pooled along the trough as a 35 kt wind in the low levels pooled 11 C. dewpoints at the 850 mb level. The airmass was relatively cool with a freezing level of only 10,000 feet. As such, hail was the primary mode of severe weather with this event. Even with 300 J/kg of CAPE in the -10 to -30 C. layer of the atmosphere, the limited overall CAPE kept hail size to an inch or less. The storms in Marshall, Hardin, and Tama Counties were prolific hail producers and stripped leaves from the trees. In the Garwin area, quarter size hail completely covered the ground. A few storms produced high winds of 60 MPH or higher. Available downdraft CAPE was between 1000 and 1200 J/kg. Severe thunderstorms fired along the trough from central into northeast Iowa. They moved rather quickly, around 40 MPH, and exited the area by late afternoon. |
| Event Narrative |
All events for this episode:
| Location | County/Zone | St. | Date | Time | T.Z. | Type | Mag | Dth | Inj | PrD | CrD |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Totals: | 0 | 0 | 54.00K | 125.00K | |||||||
| HUBBARD | HARDIN CO. | IA | 06/14/2008 | 12:45 | CST-6 | Hail | 0.75 in. | 0 | 0 | 0.00K | 0.00K |
| NEW PROVIDENCE | HARDIN CO. | IA | 06/14/2008 | 12:45 | CST-6 | Hail | 0.88 in. | 0 | 0 | 1.00K | 5.00K |
| HUBBARD | HARDIN CO. | IA | 06/14/2008 | 12:45 | CST-6 | Thunderstorm Wind | 52 kts. EG | 0 | 0 | 2.00K | 0.00K |
| ELDORA MUNI ARPT | HARDIN CO. | IA | 06/14/2008 | 12:48 | CST-6 | Hail | 0.75 in. | 0 | 0 | 0.00K | 0.00K |
| UNION | HARDIN CO. | IA | 06/14/2008 | 13:03 | CST-6 | Hail | 0.88 in. | 0 | 0 | 1.00K | 5.00K |
| CONRAD | GRUNDY CO. | IA | 06/14/2008 | 13:16 | CST-6 | Hail | 1.00 in. | 0 | 0 | 3.00K | 5.00K |
| BEAMAN | GRUNDY CO. | IA | 06/14/2008 | 13:23 | CST-6 | Hail | 0.75 in. | 0 | 0 | 0.00K | 5.00K |
| MARSHALLTOWN ARPT | MARSHALL CO. | IA | 06/14/2008 | 13:25 | CST-6 | Hail | 0.75 in. | 0 | 0 | 0.00K | 5.00K |
| MARSHALLTOWN ARPT | MARSHALL CO. | IA | 06/14/2008 | 13:30 | CST-6 | Thunderstorm Wind | 51 kts. MG | 0 | 0 | 0.00K | 0.00K |
| MARSHALLTOWN | MARSHALL CO. | IA | 06/14/2008 | 13:31 | CST-6 | Thunderstorm Wind | 51 kts. MG | 0 | 0 | 0.00K | 0.00K |
| HUDSON | BLACK HAWK CO. | IA | 06/14/2008 | 13:37 | CST-6 | Hail | 1.00 in. | 0 | 0 | 3.00K | 5.00K |
| GREEN MTN | MARSHALL CO. | IA | 06/14/2008 | 13:38 | CST-6 | Hail | 0.88 in. | 0 | 0 | 1.00K | 5.00K |
| GARWIN | TAMA CO. | IA | 06/14/2008 | 13:40 | CST-6 | Hail | 1.00 in. | 0 | 0 | 5.00K | 10.00K |
| WATERLOO | BLACK HAWK CO. | IA | 06/14/2008 | 13:45 | CST-6 | Hail | 1.00 in. | 0 | 0 | 5.00K | 5.00K |
| WATERLOO | BLACK HAWK CO. | IA | 06/14/2008 | 13:47 | CST-6 | Hail | 1.00 in. | 0 | 0 | 5.00K | 5.00K |
| WATERLOO RANCH ARPT | BLACK HAWK CO. | IA | 06/14/2008 | 13:50 | CST-6 | Hail | 1.00 in. | 0 | 0 | 5.00K | 0.00K |
| GARWIN | TAMA CO. | IA | 06/14/2008 | 13:51 | CST-6 | Hail | 1.00 in. | 0 | 0 | 3.00K | 5.00K |
| TOLEDO | TAMA CO. | IA | 06/14/2008 | 14:00 | CST-6 | Hail | 1.00 in. | 0 | 0 | 10.00K | 5.00K |
| TOLEDO | TAMA CO. | IA | 06/14/2008 | 14:00 | CST-6 | Thunderstorm Wind | 57 kts. EG | 0 | 0 | 5.00K | 0.00K |
| DUNKERTON DAVIS ARPT | BLACK HAWK CO. | IA | 06/14/2008 | 14:05 | CST-6 | Hail | 0.88 in. | 0 | 0 | 1.00K | 50.00K |
| VINING | TAMA CO. | IA | 06/14/2008 | 14:16 | CST-6 | Hail | 0.88 in. | 0 | 0 | 1.00K | 5.00K |
| WASHBURN | BLACK HAWK CO. | IA | 06/14/2008 | 14:34 | CST-6 | Hail | 0.88 in. | 0 | 0 | 3.00K | 5.00K |
| Totals: | 0 | 0 | 54.00K | 125.00K |
