Strong to severe thunderstorms are forecast to move north across eastern North Dakota and northwestern Minnesota tonight and Friday, with the possibility of excessive rainfalls. Widespread rainfall amounts from 1 to 2 inches are possible. Locally higher amounts, up to 3 inches or more, are possible near persistent thunderstorms.
A Flash Flood Watch will go into effect later today for parts of the southern Red River Valley, west central and north central Minnesota. The Watch will be in effect into Friday.
Although many areas are relatively dry, recent rainfalls have moistened the topsoil, especially along and east of a Valley City to Hillsboro to Thief River Falls to Warroad line. This is the area where the strongest thunderstorms and heaviest rain are forecast, which may lead to ponding of water, and localized flooding in urban, poor drainage or flood prone areas. Details are here.
A powerful storm will push across the Red River Valley region tonight into Friday. Strong thunderstorms will move out of the central plains later today and continue into tonight. The low pressure system is forecast to track from Nebraska into the southern Red River Valley by Friday morning, then move into northwest Minnesota by Friday evening. To the north and west of the low track, moderate to heavy rains are likely across the Devils Lake Basin, bringing much needed rain to those areas.
Stay tuned to NOAA All Hazards Weather Radio, or your favorite source of weather information for later updates on this developing storm.