Space Weather Forecast & Tracking

GNSS & terrestrial impact guidance — powered by NOAA data

Kp Index

? The planetary K-index (Kp) measures geomagnetic disturbance on a 0-9 scale. Values >=4 indicate unsettled conditions; >=5 indicates a geomagnetic storm.
2.0 ↑
Quiet

Geomagnetic conditions are quiet (Kp 2.0). No significant impacts expected.

GNSS Risk

? Composite risk score (0-100) based on Kp index (35%), Bz magnetic field (25%), solar wind speed (20%), and radio blackout scale (20%). Higher scores mean greater GNSS disruption risk.
8 Low
0 100

Nominal GNSS conditions. Normal precision operations may proceed. Standard monitoring recommended.

Active Alerts

? Current space weather alerts issued by NOAA's Space Weather Prediction Center within the last 24 hours.
  • minor other CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pf...

Current Estimated Kp — 15-Minute Intervals (Last 3 Hours)

? Near-real-time estimated Kp derived from 1-minute NOAA data, averaged into 15-minute buckets. Y-axis uses non-linear scaling to emphasize storm-level values.
02457917:0017:3018:0018:3019:0019:3020:0020:3021:0021:3022:0022:3023:0023:3000:00

Local time — non-linear scale: Kp 0–4 (60%), 4–7 (30%), 7–9 (10%)

Kp 1–4 Normal

Kp 1 Quiet — no GNSS impact
Kp 2 Nominal accuracy
Kp 3 Minor aurora, no GNSS impact
Kp 4 (G0) Monitor GNSS quality

Kp 5–7 Storm

Kp 5 (G1) Minor fluctuations at high latitudes
Kp 6 (G2) RTK fix rates drop, PPP convergence extends
Kp 7 (G3) Significant errors, avoid precision work

Kp 8–9 Severe

Kp 8 (G4) GNSS severely degraded, lock loss likely
Kp 9 (G5) GNSS unusable for precision work

Historical Kp — 3-Hour Intervals

1.303:001.706:001.309:001.712:002.015:001.018:002.021:00

Feb 9, 2026

Historical Kp — 3-hour intervals, dashed lines at Kp 4 (active) and Kp 5 (storm)