Line Intensifying. NWS Doppler at 8:06 PM shows an intense squall line of severe storms from near Mitchell to Jamestown, pushing east. Storms will pop ahead of the main line, reaching the metro as early as 11 PM or midnight, with the heaviest rains (possibly 1-3") during the wee hours of the morning. A Flash Flood Watch is posted for far southern Minnesota - areas that have already seen flooding will experience additional floods late tonight into Thursday morning.