THUNDERBOARD · Impact Confidence Details
Why This Score?
Impact Confidence provides decision-support context based on THUNDERBOARD warning data.
DEMO MODEDEMOUpdated 7:59 PM CDT
Elevated58%
How to read this score
Score bands
- 0-39: Low
- 40-59: Guarded
- 60-74: Elevated
- 75-89: High
- 90-100: Critical
What drives the score
- Primary NWS warning type
- County/polygon relevance
- Warning age and expiration
- NWS hazard tags and damage threat language
- Upstream warning, radar trend, and SPC context when available
Impact Confidence is deterministic decision support. Official NWS warning text, radar review, field reports, local EOC procedures, and agency policy remain authoritative. Open full scoring guide.
AI Basis: DEMO MODE: Active sample warning references Linn County with limited confirmation in the current sample packet.
Weighted Scoring Factors
- +38Demo active Severe Thunderstorm Warning selected as the primary Linn County alert.
- -8Demo warning references Linn County, but parsed polygon geometry is unavailable.
- +6Demo warning was issued approximately 18 minutes ago.
- +5Demo NWS wind parameter is included.
- +3Demo warning remains active beyond the immediate expiration window.
- -4Demo packet has no confirmed local storm report.
- -3Demo packet has no radar trend input.
Confidence Trend
RisingCurrent 58% · Previous 40% · Change +18 points · Samples 2
Primary Factors
- DEMO MODE: Active sample warning references Linn County.
- DEMO MODE: Sample warning age is approximately 18 minutes.
- DEMO MODE: NWS wind parameter is included in the sample packet.
Limiting Factors
- DEMO MODE: Parsed warning polygon is not available in the sample packet.
- DEMO MODE: No confirmed local storm report is included in the sample packet.
Source / Cache Status
Decision Support Notice: Official warning information remains the National Weather Service product. This page explains THUNDERBOARD confidence context; it does not replace NWS warning text, local EOC procedures, radar analysis, or field reports.