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The Dexes / Heavy Rain / 239788

Eventdex · Heavy Rain

MARION

239788 · 41.470, -93.310

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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_id239,788
Episode IDepisode_id41,195
Begin UTCbegin_utc2010-08-10T03:15:00+00:00
End UTCend_utc2010-08-10T09:15:00+00:00
StatestateIOWA
County/zone typecz_typeC
County/zone namecz_nameMARION
Latitudelat41.470
Longitudelon-93.310
End latitudeend_lat41.470
End longitudeend_lon-93.310
Deaths directdeaths_direct0
Deaths indirectdeaths_indirect0
Injuries directinjuries_direct0
Injuries indirectinjuries_indirect0
Damage propertydamage_property0.00K
Damage cropsdamage_crops0.00K
Weather forecast office sourcewfo_sourceMesonet
Episode narrativeepisode_narrativeAn unstable airmass remained in place over Iowa. CAPE values were in the 3000 to 5000 J/kg range with lifted indices in the -5 to -10 C range. A frontal boundary shifted south during the late afternoon and evening. As the low level jet became more active overnight, it impinged on the frontal boundary. As this occurred, moisture pooled along and north of the front with precipitable water values increasing to 2 to 2.5 inches. Thunderstorms formed in the strong theta-e advection from southeast, through central, into northwest Iowa. Initially the storms lifted northeast with the flow, but as the night progressed, they back-developed with thunderstorms moving over the same areas repeatedly. Two to four inches of rain fell in a band extending from near Ottumwa, through Des Moines, to southwest of Fort Dodge, into the Spencer area. Flash flooding was widespread across the area. Some of the worst flooding took place in Mahaska County. Flash flooding, estimated 8 feet deep, swept a car off of Highway 92 east of Oskaloosa with the car ending up in a soybean field. There were 18 evacuations and rescues in and around the town of Oskaloosa. There was no severe weather reported with this event.
Event narrativeevent_narrativeRainfall was 4.7 inches in the past 6 hours.
Yearyear2,010

Provenance

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MARION — Heavy Rain — TerraPulse