university of nebraska lincoln r school of natural resources carc update allen dutcher state...
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University of NebraskaLincoln
R
School of Natural ResourcesSchool of Natural Resources
University of Nebraska Lincoln
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CARC Update
Allen Dutcher
State Climatologist - Nebraska
(402)-472-5206
University of NebraskaLincoln
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School of Natural ResourcesSchool of Natural Resources
University of Nebraska Lincoln
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Equatorial Pacific Sea Surface Temperatures
University of NebraskaLincoln
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School of Natural ResourcesSchool of Natural Resources
University of Nebraska Lincoln
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Water Year Precipitation
University of NebraskaLincoln
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School of Natural ResourcesSchool of Natural Resources
University of Nebraska Lincoln
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SMI maps
• The soil moisture index (SMI) scales the fraction of available water in a 50 cm (~20 in.) profile
• Scaled such that 0.0 is the equivalent of 50% available water– 5.0 represents a soil at field capacity and -5.0 represents a soil at wilting point
• Measured under grass cover– Can be used to approximate soil moisture in nearby grain fields
University of NebraskaLincoln
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School of Natural ResourcesSchool of Natural Resources
University of Nebraska Lincoln
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Surplus or Deficit maps
• The surplus or deficit maps show how much water:– Is needed to get the soil profile back to 50% available water (shown on the map as a deficit)– Is left in the soil profile before the 50% threshold is reached (shown on the map as a surplus)
• The colored dot represents the SMI at that location• Irrigation scheduling possibilities?
University of NebraskaLincoln
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School of Natural ResourcesSchool of Natural Resources
University of Nebraska Lincoln
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Water Year Precipitation Departures
University of NebraskaLincoln
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School of Natural ResourcesSchool of Natural Resources
University of Nebraska Lincoln
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Water Year Percent of Normal
University of NebraskaLincoln
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School of Natural ResourcesSchool of Natural Resources
University of Nebraska Lincoln
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Water Year Percent of Normal Precipitation - National
University of NebraskaLincoln
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School of Natural ResourcesSchool of Natural Resources
University of Nebraska Lincoln
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Current 7-Day Soil Temperatures
University of NebraskaLincoln
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School of Natural ResourcesSchool of Natural Resources
University of Nebraska Lincoln
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Platte River Update
• 2 Million acre-feet of runoff projected
• Current storage: 830,000 acre-feet
• Flood pool storage: 250,000 acre-feet
• Water releases increased by CNPPID with high flows for at least 30 days
• Near record to record river stages and doesn’t include southern branch flows
• Sudden warmth and/or heavy rainfall would aggravate the situation
• Irrigation will determine summer flood risk
University of NebraskaLincoln
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School of Natural ResourcesSchool of Natural Resources
University of Nebraska Lincoln
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June Temperature Outlook
University of NebraskaLincoln
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School of Natural ResourcesSchool of Natural Resources
University of Nebraska Lincoln
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June Precipitation Outlook
University of NebraskaLincoln
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School of Natural ResourcesSchool of Natural Resources
University of Nebraska Lincoln
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June-AugustTemperature Outlook
University of NebraskaLincoln
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School of Natural ResourcesSchool of Natural Resources
University of Nebraska Lincoln
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June-AugustPrecipitation Outlook