Space weather
Unavailable- Component score
- —
- Freshness state
- Unavailable
- Observed
- No approved current observation
Source completeness0%
Solar and geomagnetic context
Space weather: reading geomagnetic and solar scales
Space weather describes conditions driven by solar activity that can affect radio communication, navigation, satellites, power systems, and aurora visibility. Different NOAA products measure different phenomena. This page keeps planetary K-index observations, geomagnetic storm levels, solar radiation storms, and radio blackouts separate before the score engine normalizes them.
- Page reviewed
- Current evidence
- Unavailable
Current evidence
Current space-weather signal
A verified panel combines the latest normalized observation with active official alerts and their issue or expiry times. Missing alerts are not automatically interpreted as quiet conditions when the feed itself is unavailable.
Current NOAA observations and alerts are not exposed through the approved public category-page boundary. The component is unavailable rather than zero, and the page makes no claim that space weather is calm.
Solar and geomagnetic context
One sky, several independent scales
The planetary K-index summarizes geomagnetic disturbance, while NOAA's G, S, and R scales communicate geomagnetic storms, solar radiation storms, and radio blackouts. They have different inputs and effects. A high value on one scale does not authorize inventing a value on another, so each observation and alert keeps its own product identity.
Space-weather conditions can change on short timescales and may have regional or technology-specific effects. The global category offers context, not operational instructions. Satellite operators, aviation users, radio users, and power-system professionals should follow NOAA products and the procedures relevant to their systems.
Methodology
Products the component keeps distinct
Planetary K-index
An observed geomagnetic activity metric with its own timestamp and quality state.
Official alerts
Issued products can include severity, headline, source reference, and expiry information.
G, S, and R scales
Three consequence-oriented scales that are normalized independently before aggregation.
Freshness state
Fast-changing conditions require short windows
The component compares observation and alert times with domain-specific freshness limits. Stale values reduce completeness; expired values become unavailable and cannot support Reasons to Chill.
Current view calculated:
Provenance
Sources and usage boundaries
The public source registry is unavailable. Source decisions remain fail-closed.
| Source | Rights decision | Production state | Attribution and limits |
|---|---|---|---|
| NOAA Space Weather Prediction Center | Approved | Not enabled for production | Space-weather observations and alerts are attributed to NOAA SWPC with issue, observation, and expiry times where supplied. Approved production products. Conditions can change quickly, so delayed or missing observations cannot be described as quiet space weather. |
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