⚠️ Special Weather Statement – Traverse; Big Stone; Marshall; Roberts; Day; Grant – Monday, July 20, 2026

Special Weather Statement issued July 20 at 12:21AM CDT by NWS Aberdeen SD

Details

At 1221 AM CDT, Doppler radar was tracking a strong thunderstorm near
Agency Village, moving east at 35 mph.

HAZARD…Wind gusts of 50 to 55 mph and pea 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…
Agency Village, Sisseton and Long Hollow Housing around 1225 AM
CDT.
Dakota Connection & Casino around 1230 AM CDT.
Peever around 1235 AM CDT.
Peever Flats Housing around 1240 AM CDT.
Browns Valley around 1245 AM CDT.

Other locations impacted by this strong thunderstorm include Lake
Traverse Reservation.

Instructions

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

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