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The Dexes / Heavy Rain / 531330

Eventdex · Heavy Rain

POLK

531330 · 41.559, -93.775

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The record

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Event typeevent_typeHeavy Rain
NOAA NCEI event IDncei_event_id531,330
Episode IDepisode_id88,024
Begin UTCbegin_utc2014-08-29T12:00:00+00:00
End UTCend_utc2014-08-29T12:00:00+00:00
StatestateIOWA
County/zone typecz_typeC
County/zone namecz_namePOLK
Latitudelat41.559
Longitudelon-93.775
End latitudeend_lat41.559
End longitudeend_lon-93.775
Deaths directdeaths_direct0
Deaths indirectdeaths_indirect0
Injuries directinjuries_direct0
Injuries indirectinjuries_indirect0
Damage propertydamage_property0.00K
Damage cropsdamage_crops0.00K
Weather forecast office sourcewfo_sourceSocial Media
Episode narrativeepisode_narrativeA very moist airmass was in place over Iowa with precipitable water values over 2 inches. The atmosphere was relatively unstable with CAPE around 2000 J/kg and shear around 30 kts. A synoptic warm frontal boundary was located over northern Iowa, however a weak outflow boundary that remained from prior convection remained just south of the state. As the low level jet increased in the evening, thunderstorms formed over southwest Iowa. The thunderstorms became a slow moving MCS as it drifted northeast. They produced heavy rainfall with two to four inches common from southwest into central Iowa. The heaviest rainfall report was in Cass County at Massena with 4.9 inches. Some local flooding occurred, however there were no reports of either significant flooding or of severe weather with the storms.
Event narrativeevent_narrativeRainfall in the past 24 hours was 2.35 inches near I-35 and Mills Civic Parkway.
Yearyear2,014

Provenance

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POLK — Heavy Rain — TerraPulse