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The Dexes / Heavy Rain / 334422

Eventdex · Heavy Rain

MERRICK

334422 · 41.211, -97.950

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The record

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Event typeevent_typeHeavy Rain
NOAA NCEI event IDncei_event_id334,422
Episode IDepisode_id55,004
Begin UTCbegin_utc2011-07-06T13:00:00+00:00
End UTCend_utc2011-07-07T13:00:00+00:00
StatestateNEBRASKA
County/zone typecz_typeC
County/zone namecz_nameMERRICK
Latitudelat41.211
Longitudelon-97.950
End latitudeend_lat41.211
End longitudeend_lon-97.950
Deaths directdeaths_direct0
Deaths indirectdeaths_indirect0
Injuries directinjuries_direct0
Injuries indirectinjuries_indirect0
Damage propertydamage_property0.00K
Damage cropsdamage_crops0.00K
Weather forecast office sourcewfo_sourcePublic
Episode narrativeepisode_narrativeFor the second consecutive night, thunderstorms were widespread across South Central Nebraska, pushing southeastward across the area mainly between 8 PM CDT Wednesday evening the 6th and 6 AM CDT early Thursday morning the 7th. Severe weather in the form of large hail or damaging winds was not an issue during this event, with only a few reports of sub-severe wind gusts. For most of the 24-county area, overnight rainfall totaled no more than 1-2 inches. However, considerably heavier rain and localized flooding materialized across a fairly concentrated zone north of Interstate 80, generally centered near the borders of Polk, York, Hamilton and Merrick Counties. Within this area, gauge readings of 3-5 inches were common, with an unofficial report of nearly 6 inches near the community of Polk. The majority of this heavy rain fell between midnight and 2 AM CDT, and resulted in flash flooding with water running over a small segment of Highway 66, and also covering several county roads. Although the initial flash flooding quickly receded, the net result of 3-6 inches of rain from separate events during the past 36 hours likely resulted in stream and river flooding for the next few days, especially along the Big Blue River basin in southern Polk County. A gauge along the Big Blue near Surprise, just east of the Polk-Butler County line, eventually exceeded flood stage by Saturday evening the 9th. ||The expansive and rather slow-moving complex of storms that brought flooding rains during the night originated near the Nebraska-South Dakota border during the afternoon, gradually sinking southward within modest west-northwest flow aloft. The atmosphere was primed for heavy rain, with precipitable water values during the night averaging around 2 inches.
Event narrativeevent_narrativeTotal rainfall over the past 24 hours of 3.64 inches was reported by a Nebraska Rainfall Assessment and Information Network observer.
Yearyear2,011

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MERRICK — Heavy Rain — TerraPulse