June 5 and 6 Severe Weather

Thunderstorms developed late in the evening around 10 pm on Friday, June 5, 2009 near a frontal boundary oriented west to east across Nebraska.   The thunderstorms rapidly became severe and increased in areal coverage across south central Nebraska and persisted into the early morning hours on June 6th.  The thunderstorms produced large hail of golf ball to hen egg size in Hall, Adams, Clay and Valley Counties.  Thunderstorm wind gusts of 60 to 75 mph occurred in Buffalo, Hall and Valley Counties causing downed trees and tree limbs.  Additional thunderstorm wind damage occurred in Gothenburg in Dawson County.

Click on the image below for the preliminary storm reports: 

National Weather Service employees photographed the large hail.  The first two images are from the west side of Hastings, and the third image image is from the Juniata area.  Note the comparison sizes to the golf ball and baseball:



The next set of photographs illustrate some of the damage which occurred from the thunderstorm winds in Buffalo County.  (Photographs courtesy of Chuck Patient.)


The thunderstorms also produced very heavy rainfall in excess of 2 and 3 inches.  Rainfall amounts from automated rain gauges report 2.35 inches accumulated at the Grand Island Airport, with the same amount reported 4 miles SSW of town along Highway 281.  Three miles north of Dannebrog, 2.51 inches of rain fell, 2.05 inches accumulated 4 miles west northwest of Ravenna, and one of the highest amounts occurred 4 miles south of Poole in Buffalo county where rainfall totaled 3.25 inches.  Additional rainfall amounts can be found here.  The heaviest rainfall occurred in the Loup and Platte River Basins, causing areas of lowland flooding and rises in river levels.  The more notable river rises are occurring along the Wood River near Alda, the Mud Creek near Sweetwater, and the Turkey Creek north of Dannebrog.  Additional river information can be obtained on the AHPS web page

The image below is the KUEX radar storm total precipitation estimate which depicts the location of the heaviest rainfall.  The yellow/gold colors estimate rainfall amounts of 2.5 inches or greater.  The red colored pixels estimate rainfall amounts of 5 inches or greater. 

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