Western Water Supply Forecast

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Western Water Supply Forecast
Phillip Pasteris Supervisory Physical Scientist
Natural Resources Conservation Service Snow
Survey and Water Supply Forecasting
Program National Water and Climate
Center Portland, Oregon ppasteris_at_wcc.nrcs.usda.g
ov
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Snow Survey and WSF Program

• Produce Water Supply Forecasts for 711 points the
  West
• Partnership with the National Weather Service
• National Climate Program
• Spatial Climate Information (PRISM w/OSU)

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Snow Survey and WSF Program

• Operate 700 SNOTEL stations in the West and
  Alaska
• Publish State WSF forecasts
• Work closely with state, tribal, county,
  municipal, and irrigation districts to interpret
  water supply forecasts

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SNOTEL (SNOw TELmetry)

• Snow water equivalent
• Precipitation
• Temperature
• Snow depth
• Daily and hourly readings

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Enhanced SNOTEL Sites

• Additional sensors
• Wind speed/dir
• Relative humidity
• Solar radiation
• Soil moisture/temperature

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Snowpack 2003-2004
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Seasonal Precipitation 2003-2004
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Water Supply Forecast 2003-2004
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Water Supply Forecast 2003-2004
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Reservoir Storage 2003-2004
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Thank You!
www.wcc.nrcs.usda.gov
Clear Lake SNOTEL, Mt. Hood