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Idaho Weather, Climate and Water Supply Outlook IDWR Briefing, April 11 th 2011

Idaho Weather, Climate and Water Supply Outlook IDWR Briefing, April 11 th 2011 Jay Breidenbach, NOAA National Weather Service. Snowpack Images Recent Temperature and Precipitation Anomalies Forecast for next 10 days – continuation of stormy pattern La-Nina Status

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Idaho Weather, Climate and Water Supply Outlook IDWR Briefing, April 11 th 2011

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  1. Idaho Weather, Climate and Water Supply Outlook IDWR Briefing, April 11th2011 Jay Breidenbach, NOAA National Weather Service Snowpack Images Recent Temperature and Precipitation Anomalies Forecast for next 10 days – continuation of stormy pattern La-Nina Status Three Month Climate Outlook Water Supply Numbers and Idaho Spring Flood Outlook

  2. Snow Water Equivalent Feb8th, 2011

  3. Snow Water Equivalent March 11th, 2011

  4. Snow Water Equivalent April 11th, 2011

  5. Snow Water Equivalent April 11th, 2010

  6. Temperature and Precipitation Anomalies March 2011

  7. Temperature and Precipitation at Boise

  8. Monday- Apr11th IR Satellite Imagery / 500 mb heights

  9. Monday, Apr 11th(Morning) 500 mb heights / model precipitation

  10. Tuesday, Apr 12500 mb heights / model precipitation

  11. Wednesday, Apr 13th

  12. Thursday, Apr 14th

  13. Friday, Apr 15th

  14. Saturday, Apr 16th

  15. Sunday, Apr 17th

  16. Monday, Apr 18th

  17. Tuesday, Apr 19th

  18. Total Precipitation Ending Thursday, April 19th

  19. La-Nina Continues to Weaken

  20. Equatorial Ocean Temperatures Ensemble ForecastIssued 4 April 2011 Ensemble forecasts predict the a return to near normal sea-surface conditions by early summer 2011.

  21. U. S. Seasonal OutlooksApril2011 Precipitation Temperature

  22. U. S. Seasonal OutlooksApril – June 2011 Precipitation Temperature

  23. Near Normal Water Supply Expected in Most Areas of Idaho in 2011

  24. Idaho Spring Flood Increasing Highlights: Large snow pack and Forecast River Volumes have elevated flood risk in: -Portions of Upper Snake River Basin -Bear River Basin -BruneauRiver -Portions of Idaho Panhandle -Small Stream in upper Clearwater

  25. Flooding on Weiser River

  26. Flooding on Weiser River

  27. Flooding on Weiser River

  28. OwyheeRiver

  29. BoiseRiver

  30. www.weather.gov/boise Current Information on Web www.nwrfc.noaa.gov

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