Wednesday, September 08, 2010
Storm system threatens significant rainfall Friday
The next storm system coming off the Pacific ocean is forecast to intensify over the next 24 to 48 hours as it moves into the Dakotas and eastern Prairies by Friday. This system will tap an increasingly moist and unstable airmass over the US plains generating widespread showers and embedded thunderstorms as it moves eastward. Rain is expected to move into the Red River valley Thursday night and continue through Friday into Friday night before moving into NW Ontario. At this point, models are indicating a fairly good chance of seeing at least 25 mm of rain with this system over the Red River valley, with amounts of 50 mm possible in some areas. Ditches and fields remain waterlogged across the valley thanks to heavy rains over the past 10 days (100-150 mm).. and it's becoming increasingly difficult to dry up this ground moisture as we get into the fall with weaker sunshine and cooler weather. This next system will further delay chances of drying out appreciably before winter freezeup.
Posted by rob at 12:34 PM