Pennington storm history

Runoff from heavy rain caused overland flooding and flooding along Rapid Creek, Box Elder Creek, Spring Creek, and tributaries of the Cheyenne River. A culvert washed out on Nike Road east of the Cobalt Drive intersection, water covered South Ellsworth Road south of Highway 14-16…

Hail caused extensive damage to homes and vehicles on the west side of Rapid City.

Hail to the size of golf balls fell at the Rapid City National Weather Service office and across much of east Rapid City.

Golf ball size hail was reported from Hill City to Palmer Gulch southeast of town, causing extensive damage to vehicles and property.

Large hail damaged automobiles and property in the area.

Large hail damaged vehicles and property in the area.

Wind gust from decaying thunderstorm. Red Rocks SD Mesonet station 028BH.

NWS employee measured wind gust from decaying thunderstorm.

SD Mesonet recorded wind gust.

SD Mesonet recorded wind gust.

SD Mesonet recorded wind gust.

SD Mesonet recorded wind gust.

Multiple reports from public, NWS employees and trained spotters of a funnel cloud over west side Rapid City.

SD Mesonet recorded wind gust.

Measured hail report.

ASOS recorded wind gust.

Spotter estimated wind report.

SD Mesonet recorded wind gust.

Fire department weather station measured a 69.6 mph.

Report of Nickel to quarter size hail.

Public report, estimated.

Measured hail report.

Report noted that most of the hail was quarter size, some pieces were about 1.5 inch in diameter.

Most of the wind driven hail was quarter size, some pieces were about 1.5 inch in diameter.

Estimated wind gust report.

Storm spotter estimated wind gust report.

SD Mesonet recorded wind gust.

SD Mesonet recorded wind gust. Heat burst.

Public phone call report.

Spotter submitted report.

Social media report.

Spotter phone call report.

SD Mesonet measured wind gust.

Public submitted the mPING report.

Employee measured hail report.

ASOS measured wind gust.

SD Mesonet measured wind gust.

SD Mesonet measured wind gust.

SD Mesonet measured wind gust.

Media slack post.

Public submitted report.

Confirmed report via measurement and report relay.