Ice Maps

Current Ice Jams (updated daily during season)
Ice Jam Map From the CRREL Web Map Server

Alaska Breakup Map (updated daily during season)
from NWS Alaska - Pacific River Forecast Center

River Ice Forecasts and Measurements

River Ice Statements:
    2009

Snow Maps, Surveys, and Reports

Snow Analysis Products (updated daily) -
Includes Snow Depth and Snow Water Equivalent Maps
From NOAA's National Operational Hydrologic Remote Sensing Center

National and Regional Snow Analysis

Interactive Snow Information Maps

Airborne Gamma Radiation Snow Survey Program

Interactive Snow Map (Updated Daily)

Army Crops of Engineers Interactive Snow Map (link available to DOD computers only).

Snow Surveys
St. John River Basin, February 2006
St. John River Basin, March 2006
St. John River Basin, April 2006
St. John River Basin, January 2007
St. John River Basin, February 2007

1956 Snow Hydrology Report
from North Pacific Division, Corps of Engineers, US Army, Portland, Oregon

1956 Snow Hydrology Report