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SPC HREF Ensemble Viewer is a tool to visualize and compare the output of different ensemble members of the High Resolution Ensemble Forecast (HREF) for severe weather guidance. It shows probabilities of environmental conditions, hazard occurrence, and storm parameters for each grid point and member.
1 dzień temu · SPC provides forecasts and warnings for severe weather, fire weather, and convective outlooks in the United States. SPC HREF is a high-resolution ensemble forecasting system that can be accessed from the forecast tools section.
Coinciding with the operationalization of the HREFv2, the NOAA National Weather Service’s Storm Prediction Center (SPC) launched its HREF Ensemble Viewer (https://www.spc.noaa.gov/exper/href), a public web display for real-time HREF data.
HREF enables generation of calibrated probabilistic hazard information. improved. The SREF continues to serve as an important modeling system for operational SPC products: Days 1-3 Convective Outlooks. Days 1-3 Fire Wx Outlooks. Day 1 Thunderstorm Outlook. Day 1 Winter Wx Meso. Disc.
Summary of biggest changes. Reminder: The HiresWindow and NAM nest runs feed into HREF, which aggregates deterministic model runs into ensemble products. Increases HREF product frequency to hourly (from 3 hourly), adds non-CONUS HREF guidance (AK, HI, PR).
single-model ensemble, given the diversity of HREF composition. Develop a strategy for multi-year reforecast datasets for RRFS. Several skillful experimental and operational calibrated guidance products have been developed from the HREF now that there are five years of archived data.
Coinciding with the operationalization of the HREFv2, the NOAA National Weather Service's Storm Prediction Center (SPC) launched its HREF Ensemble Viewer (https://www.spc.noaa.gov/exper/href), a public web display for real-time HREF data.
