{"decision_support_notice":"Impact Confidence is a THUNDERBOARD decision-support indicator. It does not replace National Weather Service warnings, radar analysis, field reports, local EOC procedures, or agency policy.","ok":true,"operator_rules":["Use Impact Confidence as a briefing and prioritization aid.","Use official NWS warning text as the authoritative warning product.","Use local policy, EOC procedures, radar review, field reports, and communications plans for operational decisions.","A Low score does not mean no weather risk exists; it means THUNDERBOARD did not identify a strong primary-warning confidence signal for the selected county.","A High or Critical score should prompt validation against NWS products and local procedures, not automatic action by itself."],"score_bands":[{"level":"Critical","max":100,"meaning":"High-confidence, high-consequence warning context. Treat as urgent EOC decision-support context.","min":90},{"level":"High","max":89,"meaning":"Strong warning/radar/context signal. Prioritize situational awareness and readiness actions.","min":75},{"level":"Elevated","max":74,"meaning":"Meaningful warning or upstream influence signal. Monitor closely and validate with official products.","min":60},{"level":"Guarded","max":59,"meaning":"Early or partial signal. Useful for heads-up monitoring but not a primary trigger by itself.","min":40},{"level":"Low","max":39,"meaning":"No active primary warning or weak supporting signal for the selected county.","min":0}],"scoring_sources":[{"category":"hazard","description":"Tornado Warning and Severe Thunderstorm Warning are the core deterministic drivers.","label":"Primary NWS warning type"},{"category":"polygon","description":"County/polygon context helps determine whether the primary warning is directly relevant.","label":"Polygon / county match"},{"category":"time","description":"Newer and currently valid warnings carry more operational relevance.","label":"Warning age / expiration"},{"category":"tags","description":"Wind, hail, tornado, observed/radar-indicated, and damage threat language can adjust confidence.","label":"NWS hazard tags"},{"category":"upstream","description":"Nearby upstream primary warnings can create capped heads-up confidence even before a local warning exists.","label":"Upstream warning influence"},{"category":"radar_trend","description":"Optional radar trend factors may add context when available.","label":"Radar trend context"},{"category":"spc_outlook","description":"SPC outlook context can support but does not override live warning state.","label":"SPC outlook context"}],"title":"Impact Confidence Scoring Guide","version":"6.0.202"}