Bitter cold temperatures and dangerous wind chills will persist from Florida to the Northeast through Monday. Daily record low temperatures are forecast across the Southeast and Florida, with some all-time February low temperature records possible across Florida. An Alberta clipper will spread wintry precipitation across the Northern Plains today and into the upper Great Lakes into tonight. Read More >
Overview
During the evening of Tuesday, July 18, 2017, a supercell moved from southeastern Montana into northwestern South Dakota. It strengthened as it moved over the Newell area, dropping up to baseball sized hail, with wind gusts of 90 to 100 mph. A wind sensor in Newell broke with a measured wind gust of 93 mph. These strong winds and large hail caused damage around the Newell and Vale areas. Buildings and campers were tipped over, homes and businesses were damaged, and trees and crops were destroyed. A storm survey was completed on Wednesday, July 19th, and several pictures were taken of the damage.
Infrared and Lightning Imagery
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| Infrared Imagery | 24 Hr Lightning Strikes |
Photos:
Damage from the Newell/Vale Area
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| Corn Damage (3 E Vale) |
Flipped Camper (1.5 E Vale) |
Damaged Tree (1 S Newell) |
Damaged Garage Door (Newell) |
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| Destroyed Buildings (1/2 S Newell) |
Roof Damage (1/2 S Newell) |
Flipped Carport (Newell) |
Flipped Building (1/2 S Newell) |
Radar:
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| Reflectivity at 731 PM MDT | Velocity at 731 PM MDT | Reflectivity/Velocity at 733 PM MDT |
Storm Reports
THE STORM REPORTS LISTED BELOW ARE IN DESCENDING ORDER AND MAY NOT NECESSARILY
BE THE FINAL STORM REPORTS.
HAIL REPORTS LISTED BY SIZE (INCHES)
SIZE LOCATION ST COUNTY TIME
------ ----------------------- -- -------------- -------
2.75 NEWELL SD BUTTE 0730 PM
RELAYED BY NWS EMPLOYEE...SIGNIFICANT WIND
AND HAIL DAMAGE AROUND TOWN
2.00 4 SW NEWELL SD BUTTE 0732 PM
ALSO HAD 50 MPH WINDS
1.75 1 E VALE SD BUTTE 0751 PM
1.75 3 S NEWELL SD BUTTE 0735 PM
1.75 NEWELL SD BUTTE 0730 PM
CAR WINDOWS BROKEN... SOME HOUSE WINDOWS
BROKEN
1.25 NEWELL SD BUTTE 0730 PM
1.00 17 W CASTLE ROCK SD BUTTE 0657 PM
1.00 28 NNW BELLE FOURCHE RES SD BUTTE 0635 PM
0.88 7 WNW NEWELL SD BUTTE 0725 PM
0.75 16 NW HEREFORD SD MEADE 0808 PM
TSTM WIND REPORTS LISTED BY SPEED (MPH)
SPEED LOCATION ST COUNTY TIME
------ ----------------------- -- -------------- -------
93.00 NEWELL SD BUTTE 0730 PM
WIND SENSOR DESTROYED BY HAIL AFTER RECORDING
GUST
75.00 6 NNW HEREFORD SD MEADE 0830 PM
70.00 16 NW HEREFORD SD MEADE 0808 PM
68.00 3 W UNION CENTER SD MEADE 0825 PM
65.00 5 ESE ELM SPRINGS SD MEADE 0900 PM
60.00 1 N HEREFORD SD MEADE 0835 PM
60.00 7 WNW NEWELL SD BUTTE 0725 PM
60.00 17 W CASTLE ROCK SD BUTTE 0657 PM
60.00 28 NNW BELLE FOURCHE RES SD BUTTE 0635 PM
60.00 8 WSW HARDING SD HARDING 0610 PM
60.00 4 N SILVER CITY SD PENNINGTON 0525 PM
55.00 27 WNW CASTLE ROCK SD BUTTE 0616 PM
51.00 8 N REDIG SD HARDING 0700 PM
RAIN AMOUNTS (INCHES)
AMOUNT LOCATION ST COUNTY TIME
------ ----------------------- -- -------------- -------
1.50 NEWELL SD BUTTE 0730 PM
FELL IN ABOUT 30 MINUTES
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