Special Weather Statement for Pennington Co Plains; Haakon
At 210 AM MDT, Doppler radar was tracking a strong thunderstorm over Grindstone, or 17 miles northwest of Philip, moving east at 25 MPH. HAZARD...Wind gusts up to 50 MPH and nickel size hail. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down...
Official alert brief
At 210 AM MDT, Doppler radar was tracking a strong thunderstorm over Grindstone, or 17 miles northwest of Philip, moving east at 25 MPH. HAZARD...Wind gusts up to 50 MPH and nickel size hail. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Minor damage to outdoor objects is possible. Locations impacted include... Philip, Grindstone and Grindstone Butte.
Instructions
If outdoors, consider seeking shelter inside a building. If you observe hail, wind damage, or flooding, please report your observations to the National Weather Service office in Rapid City via phone, email, or social media, as soon as it is safe to do so.