|
Convective Wind Damage
August 30th, 2010
|
Severe thunderstorms caused convective wind damage on Monday, August 30th - as they marched across western and north central Nebraska. Wind damage was reported in Frontier, Custer, Brown, Blaine, Holt, and Boyd counties. The wind damage occurred in two main swaths. One began in southwestern Nebraska around McCook and Stockville, and extended northeast past Lexington and Broken Bow, Brewster, Burwell, Chambers, O'Neill, and Lynch, and then continued all the way into South Dakota. The storms covered that distance of over 200 miles in only four hours. Wind gusts of 50 to 70 mph were common along that line.
The second swath of damaging winds caused the most significant damage of the event in Ainsworth, in Brown County. Trees and power lines were blown down by winds estimated to be 80 miles an hour by law enforcement personnel. A storage barn and a horse barn were completely destroyed by the ferocious winds. More information on the damage in Ainsworth and the results from a National Weather Service damage survey are available here.
Below are some radar animations of reflectivity and velocity from the KLNX Doppler radar in Thedford, along with an animation from the Iowa Mesonet depicting storm evolution, warning polygons and preliminary local storm reports. Finally, a summary of local storm reports received by the National Weather Service is also enclosed below.
|
Base Reflectivity Loop
Base Velocity Loop
(Iowa Mesonet animation of radar, warning and watch polygons, and local storm reports)
(Google Earth Professional view of local storm reports from August 30th, 2010)
|
|
 |
 |
 |
|
Tree damage in Taylor. Image Courtesy of Nebraska Emergency Management.
|
2 Car Garage destroyed west of Weissart. Images courtesy of the Connelys.
|
Destroyed 2 Car Garage sideview
|
Destroyed garage roof displaced to north |
|
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE NORTH PLATTE NE
420 PM CDT TUE AUG 31 2010
.TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON
.DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE.
..REMARKS..
0325 PM TSTM WND GST STOCKVILLE 40.53N 100.38W
08/30/2010 E60.00 MPH FRONTIER NE PUBLIC
THE WINDS DOWNED TREE BRANCHES AT LEAST 4 INCHES IN
DIAMETER.
0330 PM TSTM WND DMG CURTIS 40.63N 100.51W
08/30/2010 FRONTIER NE TRAINED SPOTTER
FOUR TO EIGHT INCH DIAMETER TREE BRANCHES WERE DOWNED BY
THUNDERSTORM WINDS.
0425 PM TSTM WND GST 5 SE OCONTO 41.09N 99.69W
08/30/2010 E50.00 MPH CUSTER NE PUBLIC
0430 PM TSTM WND DMG WEISSERT 41.47N 99.45W
08/30/2010 CUSTER NE NEWSPAPER
A GARAGE WAS LEVELED WITH THE ROOF BLOWN 100 YDS TO THE
NORTH. THE SIDING WAS WRAPPED AROUND TREES. THE REST OF
THE BUILDING WAS LAYING ON THE GROUND IN A PILE. A SCHOOL
BUS DRIVER IN THE SAME AREA EXPERIENCED BLINDING
HORIZONTAL RAIN.
0430 PM TSTM WND DMG WEISSERT 41.47N 99.45W
08/30/2010 CUSTER NE NEWSPAPER
A MICROBURST FLATTENED A CORN FIELD ON ONE SIDE OF THE
ROAD AND LEFT THE CORN ON THE OTHER SIDE OF THE ROAD
STILL STANDING. A HOMEOWNERS GARDEN WAS LEVELED BY HIGH
WINDS.
0440 PM TSTM WND GST AINSWORTH 42.55N 99.86W
08/30/2010 E80.00 MPH BROWN NE LAW ENFORCEMENT
THE THUNDERSTORM WINDS PRODUCED CONSIDERABLE DAMAGE IN
AND NEAR AINSWORTH...INCLUDING THE DESTRUCTION OF BOTH A
90 FT BY 30 FT HORSE BARN AND A SEPARATE STORAGE BARN.
TREES AND POWER LINES WERE DOWNED...AND THE COMMUNITY WAS
WITHOUT POWER FOR ABOUT 2 HOURS.
0442 PM TSTM WND GST BROKEN BOW 41.41N 99.64W
08/30/2010 M52.00 MPH CUSTER NE ASOS
0443 PM HAIL AINSWORTH 42.55N 99.86W
08/30/2010 M1.00 INCH BROWN NE LAW ENFORCEMENT
0510 PM TSTM WND GST 8 NE BREWSTER 42.02N 99.75W
08/30/2010 E60.00 MPH BLAINE NE PUBLIC
0517 PM TSTM WND GST 1 SW MILLS 42.93N 99.41W
08/30/2010 E60.00 MPH KEYA PAHA NE PUBLIC
WINDS ESTIMATED 50 TO 60 MPH.
0517 PM HAIL 1 SW MILLS 42.93N 99.41W
08/30/2010 M1.00 INCH KEYA PAHA NE PUBLIC
0545 PM TSTM WND GST 7 SW AMELIA 42.16N 99.06W
08/30/2010 E50.00 MPH HOLT NE PUBLIC
WINDS ESTIMATED AT 45 TO 50 MPH.
0545 PM TSTM WND GST 3 W AMELIA 42.23N 99.02W
08/30/2010 E50.00 MPH HOLT NE PUBLIC
WINDS ESTIMATED TO 50 MPH.
0550 PM TSTM WND GST 14 NNE BURWELL 41.97N 99.03W
08/30/2010 E60.00 MPH GARFIELD NE PUBLIC
STRONG WINDS AT 50 TO 60 MPH WRAPPED TIN AROUND A POST.
0610 PM TSTM WND GST ONEILL 42.46N 98.65W
08/30/2010 M60.00 MPH HOLT NE AWOS
0618 PM TSTM WND GST 6 S CHAMBERS 42.12N 98.75W
08/30/2010 E70.00 MPH HOLT NE FIRE DEPT/RESCUE
0642 PM TSTM WND GST LYNCH 42.83N 98.47W
08/30/2010 E60.00 MPH BOYD NE PUBLIC
0720 PM TSTM WND GST VALENTINE 42.87N 100.55W
08/30/2010 M49.00 MPH CHERRY NE ASOS
0600 AM HEAVY RAIN BUTTE 42.91N 98.85W
08/31/2010 M1.60 INCH BOYD NE CO-OP OBSERVER
24 HOUR STORM TOTAL RAINFALL AMOUNT ENDING AT 700 AM CDT
FROM COOPERATIVE WEATHER OBSERVER.
0700 AM HEAVY RAIN LYNCH 42.83N 98.47W
08/31/2010 M1.00 INCH BOYD NE CO-OP OBSERVER
STORM TOTAL RAINFALL AMOUNT ENDING AT 700 AM CDT AS
REPORTED BY COOPERATIVE WEATHER OBSERVER.
0700 AM HEAVY RAIN 4 NNE BERWYN 41.40N 99.47W
08/31/2010 M1.00 INCH CUSTER NE MESONET
24 HOUR STORM TOTAL RAINFALL AMOUNT ENDING AT 700 AM CDT.
REPORT WAS FURNISHED BY A NEBRASKA RAINFALL ASSESSMENT
AND INFORMATION NETWORK OBSERVER.
0700 AM HEAVY RAIN 16 ESE LONG PINE 42.45N 99.41W
08/31/2010 M1.43 INCH ROCK NE MESONET
24 HOUR STORM TOTAL RAINFALL AMOUNT ENDING AT 700 AM CDT.
REPORT WAS FURNISHED BY A NEBRASKA RAINFALL ASSESSMENT
AND INFORMATION NETWORK OBSERVER.
0700 AM HEAVY RAIN AINSWORTH 42.55N 99.86W
08/31/2010 M1.25 INCH BROWN NE CO-OP OBSERVER
24 HOUR STORM TOTAL RAINFALL AMOUNT OF 1.25 INCHES AS
REPORTED BY A COOPERATIVE WEATHER OBSERVER.
0700 AM HEAVY RAIN 1 E GROSS 42.95N 98.55W
08/31/2010 M1.61 INCH BOYD NE CO-OP OBSERVER
|
 |
Page composition
by
Steve Carmel |
 |
|
RSS Feeds
