The Dexes / Lightning Report (Storm Events) / 5415494
Eventdex · Lightning Report (Storm Events)
HARDIN
5415494
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| Event typeevent_type | Lightning |
|---|---|
| NOAA NCEI event IDncei_event_id | 5,415,494 |
| Episode IDepisode_id | 1,176,838 |
| Begin UTCbegin_utc | 2004-08-04T01:00:00+00:00 |
| End UTCend_utc | 2004-08-04T01:00:00+00:00 |
| Statestate | IOWA |
| County/zone typecz_type | C |
| County/zone namecz_name | HARDIN |
| Deaths directdeaths_direct | 0 |
| Deaths indirectdeaths_indirect | 0 |
| Injuries directinjuries_direct | 0 |
| Injuries indirectinjuries_indirect | 0 |
| Damage propertydamage_property | 50K |
| Weather forecast office sourcewfo_source | NEWSPAPER |
| Episode narrativeepisode_narrative | A very unstable airmass was over Iowa during the afternoon of the 3rd. A cold front sank into northern Iowa during the afternoon. Numerous outflow boundaries were located over the state from previous convection as well. Temperatures rose into the mid 80s to low 90s, while dew point readings soared into the upper 70s to low 80s. By late afternoon, lifted indices were around -15 C., with CAPE values in the 6000 to 8000 J/kg range. During the day, a strong MCS tracked east across southern Minnesota. Thunderstorms developed to the southwest of the MCS as it passed and it's outflow boundary interacted with the unstable airmass. Thunderstorms erupted very quickly during the late afternoon and evening hours. The main mode of severe weather from the storms was in the form of high winds. Winds gusted to between 60 and 80 MPH in several locations. Strong straight line winds blasted the south half of Marshall County, causing considerable damage in the Marshalltown area as well as areas to the south. There were spotty reports of hail with the system. Freezing levels being around 15000 feet AGL helped to limit hail size. The largest reports were of golf ball size hail, though most of the hail was in inch or less in diameter. There were a few tornadoes during the late afternoon. One tornado touched down briefly in Hardin County. Though it tracked through rural areas, it did cause some structural damage to outbuildings and a house south of Radcliffe. One of the stronger tornadoes of the day touched down near Albion in Marshall County. The tornado was on the ground for several miles. Fortunately, it traveled through rural areas and resulted in little damage. High winds around the supercell associated with the tornado caused much more damage in the form of straight line winds. Another tornado touched down in Story County northeast of Zearing. The tornado tracked southeast along its 3 mile long damage path. The path was about 100 yards wide. Thirty to forty trees were damaged or destroyed and one outbuilding was destroyed. Several head of livestock were killed with the outbuilding was destroyed. There was also significant crop damage along the path of the storm. High winds also caused damage in Franklin County in the Bradford area. Two grain bins were destroyed by the high winds. Flash flooding became an issue by the evening. Very heavy rainfall fell in areas that had received significant rainfall during the previous 48 hours. Rainfall of 2 to 4 inches in less than three hours caused flash flooding in Dallas, Warren, and Decatur Counties. As the thunderstorms moved through Iowa Falls, lightning struck the Police dispatch office, blowing out all of the switching equipment in the building. Lightning struck a house in Pella during the evening. It caused damage throughout the house as all of the wiring in the house was destroyed by the surge of electricity. Several appliances were also destroyed by the strike. Another house was struck by lightning in Wayne County in Corydon. The house was set on fire, totally destroying the top story of a two story home. In Mahaska County, lightning struck a house in Oskaloosa. The house was started on fire. The people in the house escaped, however the family dog was seen by firemen in the window of the house. They were unable to reach her. Amazingly, the dog found shelter in the shower and firemen were able to rescue her once the fire was extinguished. The dog was treated and released. Damage to the house was limited to smoke and water damage. |
| Yearyear | 2,004 |
Provenance
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