This map loads the latest SPC outlook from our server and checks for updates every few minutes. To view other outlooks, from SPC's Day 1, 2 or 3 outlook page, save the KMZ, KML, shapefile (.zip) or GeoJSON downloads and load them here, several at once. One shapefile zip like day1otlk-shp.zip fills in risk, tornado, hail, wind and the hatched areas in one go. Single layers need SPC's file names, such as day1otlk_cat.kmz or day2otlk_cat.lyr.geojson. Files stay in this browser. Source: spc.noaa.gov/products/outlook