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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 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



Snow water equivalent march 11 th 2011
Snow Water Equivalent March 11th, 2011


Snow water equivalent april 11 th 2011
Snow Water Equivalent April 11th, 2011


Snow water equivalent april 11 th 2010
Snow Water Equivalent April 11th, 2010




Monday- Apr11th IR Satellite Imagery / 500 mb heights


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


Tuesday, Apr 12500 mb heights / model precipitation









Total Precipitation Ending Thursday, April 19th



Equatorial ocean temperatures ensemble forecast issued 4 april 2011
Equatorial Ocean Temperatures Ensemble ForecastIssued 4 April 2011

Ensemble forecasts predict the a return to near normal sea-surface conditions by early summer 2011.


U. S. Seasonal OutlooksApril2011

Precipitation

Temperature


U. S. Seasonal OutlooksApril – June 2011

Precipitation

Temperature



Idaho spring flood increasing
Idaho Spring Flood Increasing 2011

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





Owyhee river
Owyhee 2011River


Boise river
Boise 2011River


Current information on web

www.weather.gov/boise 2011

Current Information on Web

www.nwrfc.noaa.gov


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