The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| event_type | Funnel Cloud |
|---|---|
| ncei_event_id | 28,135 |
| episode_id | 4,868 |
| begin_utc | 2007-06-21T20:52:00+00:00 |
| end_utc | 2007-06-21T20:52:00+00:00 |
| state | IOWA |
| cz_type | C |
| cz_name | BUTLER |
| lat | 42.680 |
| lon | -92.800 |
| end_lat | 42.680 |
| end_lon | -92.800 |
| deaths_direct | 0 |
| deaths_indirect | 0 |
| injuries_direct | 0 |
| injuries_indirect | 0 |
| damage_property | 0.00K |
| damage_crops | 0.00K |
| wfo_source | Law Enforcement |
| episode_narrative | A warm, moist, and unstable airmass was in place over Iowa on the afternoon of the 21st. A Warm front lifted north into the state with temperatures rising into the upper 80s to low 90s south of it with dew point temperatures in the upper 60s to low 70s. This combination produced most unstable CAPE values in the 3000 to 4000 J/kg range and lifted indices in the -9 C. range. The environment was not strongly sheared with 25 to 35 kts of effective shear. The freezing level was quite high at 14,700 feet. In spite of this, there was plenty of cape in the -10 to -30 C. layer of the atmosphere, with 500 J/kg available. The LFC in the 1200 to 2000 meter range. The MCS developed rapidly and move east-southeast across Iowa. Many of the storms produced significant hail, with hail size ranging from nickel to over tennis ball size. Two and one half inch diameter hail fell north of Renwick in Humboldt County. Golf ball size hail fell in Hancock County in the Corwith area. The largest hail occurred during the first couple hours of the systems development. Most of the hail was in the three quarter to one inch diameter range later on. Four tornadoes were reported with the system. All of the were brief touchdowns however and caused little damage. One touched down in Wright County near Eagle Grove. Two others touched down in Butler County one west of Shell Rock, the other north of Steamboat Rock. The fourth tornado touched down northwest of Kelly in Story County. The final tornado touched down on the south side of Waterloo in Black Hawk County. Many of the storms produced strong winds of at least 45 to 50 MPH. There were several reports of winds in excess of 60 MPH however. Numerous trees were blown down and a few power poles snapped. Winds caused damage in the Poweshiek County with winds estemated at near 80 MPH. |
| year | 2,007 |
Provenance
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Storage: spine