National Weather Service United States Department of Commerce

Lowell to Impact Hawaii; Heat Persists in the South-Central U.S.

Hurricane Lowell is forecast to pass west of Kauai`s coastal waters tonight. Impacts such as high surf and heavy rain could impact all of the islands. Sweltering heat remains across the South-Central Plains and Lower/Middle Mississippi Valley into this week with limited nighttime relief. Periods of moderate to heavy rainfall will be possible through Tuesday morning in the northern Rockies. Read More >

Water Supply Forecasts and Information for Oregon and the Pacific Northwest

Latest Water Supply Outlook for Oregon (PDF)
(summary of precipitation, snowpack, reservoirs, water supply forecasts, and peak flow forecasts)

Latest Drought Information Statement for NW Oregon & SW Washington (PDF)
(summary of precipitation, temperatures, streamflow, reservoirs, and drought impacts)

Water Supply Forecasts:

Columbia Basin Water Supply (NOAA/NWS Northwest River Forecast Center)
Water Supply Products (USDA/NRCS Nat'l Water and Climate Center)

Precipitation:

Seasonal Precipitation Map for the PacNW (NOAA/NWS Northwest River Forecast Center)
SNOTEL Precipitation Reports (USDA/NRCS Nat'l Water and Climate Center)

Snowpack:

Interactive Maps of Snow Data (NOAA/NWS Remote Sensing Center)
Snow Conditions for the PacNW (NOAA/NWS Northwest River Forecast Center)
Western U.S. Snowpack Products (USDA/NRCS Nat'l Water and Climate Center)
Oregon SNOTEL Data (USDA/NRCS Nat'l Water and Climate Center)

Reservoirs:

Tea-Cup Diagram for Lower Columbia Dams
Tea-Cup Diagram for Willamette Valley USACE Reservoirs
Tea-Cup Diagram for SW Oregon USACE Reservoirs
Tea-Cup Diagram for PacNW Reservoirs (US Bureau of Reclamation)