⚠️ Special Weather Statement – Corson; Dewey; Stanley; Sully; Hughes – Monday, September 14, 2026

Special Weather Statement issued September 14 at 5:45AM CDT by NWS Aberdeen SD

Details

At 545 AM CDT /445 AM MDT/, Doppler radar was tracking a line of
strong thunderstorms extending from 6 miles west of Isabel to 11
miles southwest of Bunker, or extending from 23 miles west of Timber
Lake to 33 miles northwest of Murdo, moving northeast at 45 mph.

HAZARD…Wind gusts of 50 to 55 mph and half inch 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.

The strong thunderstorm will be near…
Isabel around 550 AM CDT.
Lantry and Bear Creek around 555 AM CDT.
Bunker around 600 AM CDT.
Brown Church and Firesteel around 605 AM CDT.
Eagle Butte, Green Grass, Hayes and Sansarc around 610 AM CDT.

Other locations impacted by this strong thunderstorm include Cheyenne
River Reservation.

Instructions

Monitor the weather situation closely and be alert for threatening
weather conditions.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

Torrential rainfall is also occurring with these storms and may lead
to flash flooding. Do not drive your vehicle through flooded
roadways.

This alert was automatically posted by SkyGuard, MWSC’s severe weather alerting system. Source: National Weather Service.