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The Dexes / Heavy Rain / 443159

Eventdex · Heavy Rain

STORY

443159 · 41.910, -93.430

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The record

Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.

Event typeevent_typeHeavy Rain
NOAA NCEI event IDncei_event_id443,159
Episode IDepisode_id73,342
Begin UTCbegin_utc2013-05-29T21:30:00+00:00
End UTCend_utc2013-05-29T23:00:00+00:00
StatestateIOWA
County/zone typecz_typeC
County/zone namecz_nameSTORY
Latitudelat41.910
Longitudelon-93.430
End latitudeend_lat41.910
End longitudeend_lon-93.430
Deaths directdeaths_direct0
Deaths indirectdeaths_indirect0
Injuries directinjuries_direct0
Injuries indirectinjuries_indirect0
Damage propertydamage_property0.00K
Damage cropsdamage_crops0.00K
Weather forecast office sourcewfo_sourceTrained Spotter
Episode narrativeepisode_narrativeA warm front moved slowly north into Iowa during the overnight hours of the 28th into the 29th. The airmass became unstable as surface temperatures warmed into the low 80s, with dewpoints around 70 along and south of the front. CAPE rose to around 3000 J/kg with a downdraft CAPE of 900 J/kg, and CAPE in the -10 to -30 C layer of the atmosphere of 600 to 800 J/kg. The lifted index fell to -9 C. Considerable moisture was available with the precipitable water values around 1.7 inches. The atmosphere was moderately sheared with 35 to 40 kts of shear available. Thunderstorms developed rapidly around mid day and produced very heavy rainfall, as well as high winds and hail. Most of the hail was somewhat limited in spite of the relatively low freezing level of 12,600 feet. The LC was relatively low at 1000 meters, however there were no reports of tornadoes. Wind and heavy rainfall was the dominant weather type. Hail was limited to penny size up to 1.5 inches in diameter. Several of the storms produced 60 to 70 MPH winds, downing numerous trees and power lines. The most extensive damage was in Butler County. Winds estimated around 80 MPH caused considerable damage to a containment build and significant structural damage to 18 houses in the town of Greene. Damage in town was around $500,000. A band of 2 to 4 inches of rainfall was observed from southwest through central into northeast Iowa. This caused flash flooding as the rain fell on already saturated soil. There were numerous roads under water from the flood waters. In the Waterloo area, the water was deep enough to submerge cars and cause many motorists to stall out and become stranded buy the flood waters. In the Hudson areas of Black Hawk County, flooding in town occurred as the levy partially failed on the river. Officials in Tama County reported that a bridge was washed out, at a cost of $75,000, and at least $150,000 in damage to secondary roads. In Grundy County, initial estimates of damage to county secondary roads was at least $170,000. As of the 29th of May, Governor Terry Branstad declared 15 Iowa counties disaster areas due to the storms and flooding. They included Buena Vista, Cherokee, Butler, Floyd, Grundy, Johnson, Iowa, Jasper, Marshall, Mitchell, Plymouth, Poweshiek, Sioux, Tama, Wapello, and Wright.
Event narrativeevent_narrativeTrained spotter reports 3.1 inches of rain fell in an hour and a half ending at 1700 CST. Several reports of roads washed out in the area.
Yearyear2,013

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STORY — Heavy Rain — TerraPulse