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The Dexes / Heavy Rain / 335465

Eventdex · Heavy Rain

WEBSTER

335465 · 40.100, -98.454

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The record

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Event typeevent_typeHeavy Rain
NOAA NCEI event IDncei_event_id335,465
Episode IDepisode_id55,925
Begin UTCbegin_utc2011-08-20T13:55:00+00:00
End UTCend_utc2011-08-20T13:55:00+00:00
StatestateNEBRASKA
County/zone typecz_typeC
County/zone namecz_nameWEBSTER
Latitudelat40.100
Longitudelon-98.454
End latitudeend_lat40.100
End longitudeend_lon-98.454
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 about three hours on this Friday evening, a narrow complex of strong to severe thunderstorms rolled from west to east across far southern portions of South Central Nebraska, mainly affecting Harlan, Franklin, Webster, Nuckolls and Thayer Counties. Although no storm reports met severe-criteria, there were instances of nickel size hail and 50 MPH winds. Locally heavy rainfall ended up being the main story, with several locations near the Highway 136 corridor tallying between 1.25-2.50 inches, and locally higher. A few of the highest-known gauge readings included 3.00 inches four miles east of Red Cloud and 2.78 inches eight miles northwest of Superior.||Storms first spread into southern Harlan County around 8 PM CDT, expanding northward from a line of convection that had been ongoing in parts of northwest and north central Kansas for a few hours. These initial Kansas storms blossomed near a surface warm front and within a zone of steep low-level lapse rates, as a weak shortwave moved in from the southwest. Between 830 and 930 PM CDT, storms quickly expanded east of Harlan County, with the trailing edge of the strongest convection exiting eastern Thayer County around 11 PM. As the storm complex tracked along and near the Highway 136 corridor, mesoscale parameters featured around 2000 J/kg most-unstable CAPE, and deep-layer vertical wind shear on the order of 30-40 knots. In the mid-levels, South Central Nebraska was positioned along the very southern edge of a band of modest west-southwest flow.
Event narrativeevent_narrativeStorm total rainfall over the past 24 hours of 3 inches was reported.
Yearyear2,011

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WEBSTER — Heavy Rain — TerraPulse