THUNDERBOARD · Impact Confidence Details
Why This Score?
Impact Confidence provides decision-support context based on THUNDERBOARD warning data.
DEMO MODEDEMOUpdated 11:20 PM CDT
High82%
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: Sample Severe Thunderstorm Warning polygon intersects Linn County with recent timing and sample motion toward the Cedar Rapids metro.
Weighted Scoring Factors
- +38Demo active Severe Thunderstorm Warning selected as the primary Linn County alert.
- +18Demo warning polygon is available and intersects Linn County.
- +10Demo warning was issued less than 10 minutes ago.
- +7Demo storm motion references the Cedar Rapids metro area.
- +12Demo severe wind/damage parameter is included.
- -4Demo packet has no confirmed local storm report.
- -3Demo packet has no radar trend input.
Confidence Trend
RisingCurrent 82% · Previous 58% · Change +24 points · Samples 2
Primary Factors
- DEMO MODE: Sample warning polygon intersects Linn County.
- DEMO MODE: Sample warning age is less than 10 minutes.
- DEMO MODE: Sample storm motion indicates possible movement toward the Cedar Rapids metro.
Limiting Factors
- DEMO MODE: No confirmed local storm report is included in the sample packet.
- DEMO MODE: Radar trend is not 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.