CIPS Real-Time SPC Practically Perfect Forecasts
"Practically Perfect" Forecasts (PPFs) resemble a forecast that is consistent with what a forecaster would provide given perfect knowledge of the event beforehand.
The PPFs shown below use the filtered real-time SPC storm reports located here and are updated every 15 minutes.
More information about how PPFs are calculated can be found in Hitchens et al. 2013 located here.
Past Totals: Latest PPF · 20250819/1200 · 20250818/1200 · 20250817/1200 · 20250816/1200 · 20250815/1200 · 20250814/1200 · 20250813/1200 · 20250812/1200
Reports: 20250819/1200 - 20250819/1915