The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| Event typeevent_type | Heavy Rain |
|---|---|
| NOAA NCEI event IDncei_event_id | 107,798 |
| Episode IDepisode_id | 18,375 |
| Begin UTCbegin_utc | 2008-07-27T23:20:00+00:00 |
| End UTCend_utc | 2008-07-27T23:45:00+00:00 |
| Statestate | IOWA |
| County/zone typecz_type | C |
| County/zone namecz_name | WAYNE |
| Latitudelat | 40.840 |
| Longitudelon | -93.400 |
| End latitudeend_lat | 40.840 |
| End longitudeend_lon | -93.400 |
| Deaths directdeaths_direct | 0 |
| Deaths indirectdeaths_indirect | 0 |
| Injuries directinjuries_direct | 0 |
| Injuries indirectinjuries_indirect | 0 |
| Damage propertydamage_property | 0.00K |
| Damage cropsdamage_crops | 0.00K |
| Weather forecast office sourcewfo_source | Trained Spotter |
| Episode narrativeepisode_narrative | A very unstable airmass was in place over Iowa as a warm front lifted north slowly into the state. The warm air had moved in aloft as freezing levels increased from 14,600 feet in the morning, to 16,200 by the evening hours. The atmosphere was a high CAPE, moderate to high shear with CAPE rising to near 5000 J/kg by late afternoon. Lifted indices fell to -8 to -13 C. A speed max moved across the state during the late afternoon and evening hours with shear increasing to between 45 and 60 kts. Downdraft CAPE was in the 1000 to 1400 J/kg range with available CAPE in the -10 to -30 C. layer of the atmosphere in the 800 to 1200 J/kg range. The LCL during the evening was around 1000 meters. A cluster of thunderstorms formed by the mid afternoon hours over northern Iowa. The storms propagated and grew to the southeast with all phases of severe weather occurring during the late afternoon and evening hours. Three tornadoes touched down. The strongest was in Polk County just southwest of Elkhart. The tornado damaged 2 houses and caused considerable tree damage. Parts of the house were blown up into the trees. The other touchdowns were relatively minor with one touching down briefly near Valeria in Jasper County, another just south of Newton in Jasper County. Straight line winds derailed 21 cars of a Burlington Northern train west of Albia. The storms formed into a forward propagating MCS and beta bow element before reaching central Iowa. An 82 MPH wind gust was recorded by a schoolnet site just east of Boone. There were numerous reports of winds to around 70 MPH as the storm moved south across the east side of Des Moines, and on southeast into southeast Iowa. Tree damage along the length of the bow echo was widespread with numerous uprooting reports, trees down, and power poles knocked down. In Poweshiek County, high winds north of Montezuma hit a farm. The barn was toppled completely. Surprisingly, a donkey that was in the barn walked out without a scratch. Most of the hail with the storm was around an inch in diameter. There was a report of 2 inch diameter hail in the New Virginia area of Warren County. Several golf ball size hail reports were received over southern Iowa as the air column cooled by the rainfall. Flash flooding became a problem in parts of southeast Iowa where rainfall of 2 to 3 inches fell in a short period of time. Many of these areas were areas that had been hit by heavy rainfall just a few days before. In Wayne County, 2 to 3 inches fell in parts of the northwest sections of the county, washing out a gravel road southwest of Derby. The storms moved southeast of the state by late evening...however thunderstorms re-fired in a line extending from near Ottumwa, through Ames, toward Fort Dodge. The storms produced hail and heavy rain with baseball size hail reported just south of Boone for example. Hail of 2.5 inches in diameter fell in Marion County at Knoxville as well. During the night, the storms continued to develop farther to the west. They produced hail up to golf ball and larger in size in Crawford. One storm produced softball size hail west of Kiron around sunrise. As the night progressed, the pattern transitioned to more heavy rain than severe weather. Flash flooding occurred as lines of thunderstorms trained across the same areas for a several hour period. Rainfall from the storms was anywhere from 3.5 to 7 inches in several areas with 6.73 inches in Guthrie Center one of the higher amounts. An unofficial report from near Brushy Creek, about 4 miles north of Guthrie Center, indicated rainfall of 8.3 inches. In Stuart, a report of 7 inches was received, while in the metro Des Moines area the highest total was 4.48 inches in Ankeny. River and stream flooding became a problem during the day on the 28th with several rivers reaching moderate flood stage. Major flooding occurred on Four Mile Creek in Des Moines. |
| Event narrativeevent_narrative | Rainfall of 2.8 inches in 25 minutes. |
| Yearyear | 2,008 |
Provenance
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Storage: spine