Storm after storm moved through the Pacific Northwest and Idaho during March. Periodic heavy rain and snowfall caused avalanches, mud slides, small stream and field flooding, and dangerous travel conditions at times. The highest March monthly precipitation totals in the 30-year SNOTEL record occurred
at more than 25 SNOTEL sites in Idaho from the Big Lost basin to the northern Panhandle region. Central and northern Idaho were the main beneficiaries, and are practically guaranteed a plentiful water supply this summer. The Idaho Panhandle with 120% of normal in some basins has a significant flood potential for spring 2012.
Unfortunatly southern and southeast Idaho were on the dry side of the major storm tracks. The seasonal water outlook in those already dry areas worsened considerably since last month. Warm weather melted much of the low and mid elevation snowpack.
You can see the whole snowpack report here Idaho Water Supply Outlook Report April 1, 2012