Rain on the way..

After 4 weeks with little or no rain over southern Manitoba, it appears that we'll be seeing our first significant rain event over the next few days. A first wave of rain is expected to move in from the southwest on Friday, spreading into the Red River Valley by afternoon, and Winnipeg by mid to late day. This first band of rain may bring 10-20 mm of rain to Southern MB Friday into Friday night. On Saturday, a second wave of showers and thunderstorms, locally heavy over North Dakota, and forecast to spread northward into southern MB by Saturday afternoon. This second wave of rain is forecast to bring heavier rain amounts, possibly 15-30 mm over portions of Southern MB Saturday afternoon into Saturday night. The rain is expected to move out of Southern MB on Sunday as the main low pressure system moves off to the northeast.

Summing up.. rain moving in from the southwest on Friday into Friday night with 10-20 mm possible.. a second wave of rain, sometimes heavy, developing Saturday into Saturday night, with 15-30 mm possible.. heaviest amounts south and west of Winnipeg. Total rainfall amounts over the weekend ranging from 15-25 mm Red River valley with 25-40 mm possible over southwest MB. At least, that's what current models are predicting.. we'll see if it works out. Note that we'll be experiencing a sustained southeast flow Friday and Saturday, which will be advecting some of those higher 10-13C dewpoints over the central plains northward into southern MB, especially southwest MB. This should help fire up some of that convection over the next couple of days.