interactive display - Updated: 22 Dec 2024

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Search the CPC   Text-Format Discussions    Prognostic    Discussion Graphics & Maps    Map Legend    500mb Heights &      Anomalies    Hawaiian Outlook &      Anomalies    Surface Forecast      Skill    Model Guidance Used    Archives [NEW] Verifications [NEW]    Charts    Explanation Related Products    6-10 Day Outlooks    HPC: Day 6, Day 7    Wind Chill    NAEFS 8-14 Day     Outlooks    AO/NAO/PNA/AAO About Us    Our Mission    Who We Are Contact Us    CPC Information    CPC Web Team Note: 6-10 Day outlooks are issued daily between 3pm & 4pm Eastern Time. All forecasts issued on weekends are completely automated while all weekday outlooks are modified by the forecaster.   Please refer to the U.S. Prognostic Discussion for an explanation of terms and symbols used on these maps.

Home > Outlooks & Forecasts > 8-14 Day Outlook Normal Maps courtesy of the PRISM Climate Group, Oregon State University, prism.oregonstate.edu created Oct 2008 Alaska 8 to 14 Day Outlook Monday December 30 - Sunday January 5 This webpage was developed in conjunction with the Weather Forecast Office in Pendleton, Oregon (WFO PDT). Many thanks to the staff there for developing the prototype and assisting in the transition to CPC. FAQ What climatologies are used in this display? PRISM (Parameter-elevation Regressions on Independent Slopes Model) normals are used in this display. PRISM data are inherently available as monthly values. For precipitation, daily average values are calculated (Monthly Total/Number of Days in Month) and combined with data from the Cooperative Observer Network (COOP). These values are then summed over the 7-day period to create total precipitation normals. For temperatures, monthly average maximum/minimum temperatures are assigned to the 15th of the current month and subsequent month. Intervening values are linearly interpolated, combined with data from the COOP, and averaged over the 7-day period to create average maximum/minimum temperature normals. What color scheme is used? The color scheme follows that of the static images for the 6-10 day forecasts and 8-14 day forecasts. What does the highlighting around the normal precipitation or normal maximum/minimum temperature imply? The color used to highlight the normal values (precipitation or maximum/minimum temperature) are used to delineate the category of the forecast at the point clicked. If the selected point is within an area of enhanced odds for above-normal temperatures, the shading around the normal maximum/minimum temperature will appear red. If the selected point is within an area of enhanced odds for below-normal temperatures, the shading around the normal maximum/minimum temperature will appear blue. The same idea applies to the precipitation normal values, except enhanced odds for above- (below-) normal precipitation values are green (brown). NOAA/ National Weather Service National Centers for Environmental Prediction Climate Prediction Center 5830 University Research Court College Park, Maryland 20740 Page Author: Climate Prediction Center Internet Team Disclaimer Information Quality Credits Glossary Privacy Policy Freedom of Information Act (FOIA) About Us Career Opportunities