Severe Thunderstorm Winds Occurred October 8th, 2010

A cluster of severe thunderstorms developed near a cold front in the eastern Nebraska panhandle on Friday afternoon. The storms produced 60 to 80 mph winds as they raced northeast across parts of the Sandhills at speeds close to 50 mph. The winds downed tree limbs and power lines in the Arthur and Mullen areas. In Valentine, the winds reportedly downed large tree limbs and ripped a roof off of a trailer. There wasn't much rain with these storms due to a dry air mass with low relative humidity values. This actually aided the severe winds by allowing moisture to evaporate beneath the thunderstorms, which in turn caused cold air to sink rapidly to the ground, where it spread out and caused the high winds. The combination of severe winds and little rainfall allowed one of the downed power lines to spark a prairie fire north of Arthur, and resulted in visibility below a quarter mile in blowing dust and sand in Valentine when the severe storms rolled through town near 6:30 p.m. CDT.

A separate area of storms produced some hail in Lincoln County around North Platte, mainly just before 6:00 p.m. CDT. The largest hail stones were up to the size of nickels on the east side of the city of North Platte.

 SUMMARY OF STORM REPORTS 

    .TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON  
   
.DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE.  
 
..REMARKS..  
 
0418 PM TSTM WND GST ARTHUR 41.57N 101.69W  
10/08/2010 E60.00 MPH ARTHUR NE CO-OP OBSERVER  
 
OBSERVER REPORTED SMALL LIMBS DOWN FROM TREES.  
 
0429 PM TSTM WND GST 7 N ARTHUR 41.67N 101.69W  
10/08/2010 E80.00 MPH ARTHUR NE PUBLIC  
 
THE PUBLIC STATED THAT A POWER LINE HAS BEEN KNOCKED DOWN  
CAUSING A PRAIRIE FIRE.  
 
0458 PM TSTM WND GST 9 SE WHITMAN 41.95N 101.41W  
10/08/2010 E60.00 MPH HOOKER NE PUBLIC  
 
0515 PM TSTM WND GST MULLEN 42.04N 101.04W  
10/08/2010 E60.00 MPH HOOKER NE LAW ENFORCEMENT  
 
A STOP SIGN HAS BLOWN DOWN...ALONG WITH SEVERAL TREE  
BRANCHES. SIZE OF THE TREE BRANCHES IS UNKNOWN AT THIS  
TIME.  
 
0531 PM TSTM WND DMG MULLEN 42.04N 101.04W  
10/08/2010 HOOKER NE LAW ENFORCEMENT  
 
TREE DAMAGE AND NUMEROUS POWERLINES DOWN IN MULLEN.  
 
0549 PM HAIL 15 N NORTH PLATTE 41.35N 100.77W  
10/08/2010 M0.50 INCH LINCOLN NE NWS EMPLOYEE  
 
WIND GUSTS TO 45 MPH ALONG WITH THE HAIL.  
 
0550 PM HAIL NORTH PLATTE 41.13N 100.77W  
10/08/2010 E0.88 INCH LINCOLN NE NWS EMPLOYEE  
 
HAIL FELL ON THE EAST SIDE OF TOWN.  
 
0553 PM TSTM WND GST 29 S VALENTINE 42.45N 100.55W  
10/08/2010 E60.00 MPH CHERRY NE TRAINED SPOTTER  
 
0621 PM TSTM WND GST VALENTINE 42.87N 100.55W  
10/08/2010 M69.00 MPH CHERRY NE ASOS  
 
0622 PM TSTM WND GST VALENTINE 42.87N 100.55W  
10/08/2010 M69.00 MPH CHERRY NE ASOS  
 
0630 PM TSTM WND GST VALENTINE 42.87N 100.55W  
10/08/2010 M70.00 MPH CHERRY NE ASOS  
 
0633 PM DUST STORM VALENTINE 42.87N 100.55W  
10/08/2010 CHERRY NE LAW ENFORCEMENT  
 
CHERRY COUNTY SHERIFF REPORTED VISIBILITY AT OR LESS THAN  
A QUARTER MILE IN VALENTINE.  
 
0633 PM TSTM WND DMG VALENTINE 42.87N 100.55W  
10/08/2010 CHERRY NE LAW ENFORCEMENT  
 
LAW ENFORCEMENT REPORTED A ROOF RIPPED OFF A TRAILER AND  
LARGE TREE LIMBS DOWN IN TOWN.       
 
0800 PM HAIL 3 S NORTH PLATTE 41.09N 100.77W  
10/08/2010 E0.75 INCH LINCOLN NE EMERGENCY MNGR  
 

  

GRAPHICAL DEPICTION OF SEVERE WIND REPORTS

 

                     Page composition by Chauncy Schultz                       


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