Flood/No Flood and Model UpdateApril 21st, 2013 at 3:11 am by Bill Steffen under Bill's Blog, News, Weather
Check out these pictures from Charlie Rozema. This is standing in the same spot (see the rock at the bottom of the pictures) at the Southern Grand Marina on the Grand River near Grand Haven. This picture on the left is normal water levels early last summer, and the picture on the right is Saturday PM (4/20)
Model update: The overnight European model has these rainfall forecast totals for Tuesday/Tuesday night then Thursday: Grand Rapids 0.51″, 0.26″ Kalamazoo 0.44″, 0.26″ Lansing 0.28″, 0.22″ Jackson 0.28″, 0.19″ Muskegon 0.69″, 0.20″ Big Rapids 0.73″, 0.19″ Holland 0.59″, 0.22″. The GFS gives G.R. 0.86″ Tues./Tues. Night and just 0.04″ on Thursday. The NAM (caribou) has 0.46″ for G.R. for Tue./Tue. night Both the GFS and European have our temperature at 850 mb (a constant pressure surface usually a little shy of a mile above ground) at -4C on Thursday. That’s betting borderline for some mixed snow.