Space Weather

Geomagnetic activity & aurora outlook

Current Kp-Index 6.0 Moderate Storm (G2)
Geomagnetic Storm (G) 0 None
Solar Radiation (S) 0 None
Radio Blackout (R) 0 None

Aurora Forecast — OVATION Model

NOAA's 30-90 minute aurora forecast, looping through the last 6 hours of frames. The green/red oval shows where the aurora is likely to be visible right now — click an image to enlarge. View source imagery on NOAA →

Northern Hemisphere

NOAA OVATION aurora forecast, Northern Hemisphere

Southern Hemisphere

NOAA OVATION aurora forecast, Southern Hemisphere

Recent Space Weather Alerts

2026-10-04 06:13:42.580

Space Weather Message Code: WARK04 Serial Number: 5424 Issue Time: 2026 Oct 04 0613 UTC WARNING: Geomagnetic K-index of 4 expected Valid From: 2026 Oct 04 0615 UTC Valid To: 2026 Oct 04 2359 UTC …

View Full Alert on NOAA →
2026-10-04 08:01:06.560

Space Weather Message Code: ALTK04 Serial Number: 2689 Issue Time: 2026 Oct 04 0801 UTC ALERT: Geomagnetic K-index of 4 Threshold Reached: 2026 Oct 04 0757 UTC Synoptic Period: 0600-0900 Active Warning: YES Comment: NOAA …

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2026-10-04 11:07:31.433

Space Weather Message Code: WARK05 Serial Number: 2267 Issue Time: 2026 Oct 04 1107 UTC WARNING: Geomagnetic K-index of 5 expected Valid From: 2026 Oct 04 1110 UTC Valid To: 2026 Oct 04 2100 UTC …

View Full Alert on NOAA →
2026-10-04 11:23:41.163

Space Weather Message Code: ALTK05 Serial Number: 2050 Issue Time: 2026 Oct 04 1123 UTC ALERT: Geomagnetic K-index of 5 Threshold Reached: 2026 Oct 04 1122 UTC Synoptic Period: 0900-1200 Active Warning: YES Noaa Scale: …

View Full Alert on NOAA →
2026-10-04 14:03:28.167

Space Weather Message Code: ALTK05 Serial Number: 2051 Issue Time: 2026 Oct 04 1403 UTC ALERT: Geomagnetic K-index of 5 Threshold Reached: 2026 Oct 04 1402 UTC Synoptic Period: 1200-1500 Active Warning: YES Noaa Scale: …

View Full Alert on NOAA →

Kp Forecast

11-01 00:00Z 3.7
11-01 03:00Z 3.0
11-01 06:00Z 4.7
11-01 09:00Z 2.7
11-01 12:00Z 3.7
11-01 15:00Z 3.3
11-01 18:00Z 3.0
11-01 21:00Z 3.3
11-02 00:00Z 2.7
11-02 03:00Z 2.3
11-02 06:00Z 2.3
11-02 09:00Z 2.3
11-02 12:00Z 2.3
11-02 15:00Z 2.0
11-02 18:00Z 2.3
11-02 21:00Z 2.7

Aurora Visibility Guide

Rough guide only — local cloud cover, moon phase, and light pollution all affect what's actually visible.

Kp 0–2 Quiet Arctic Circle only — northern Alaska and far northern Canada.
Kp 3 Unsettled Northern Canada and Alaska.
Kp 4 Active Northern-tier US on the horizon — northern MT, ND, MN, WI, MI, ME.
Kp 5 Minor Storm (G1) Northern US states — WA, MT, ND, MN, WI, MI, NY, ME.
Kp 6 Moderate Storm (G2) Further south — OR, ID, WY, SD, IA, IL, PA, NJ.
Kp 7 Strong Storm (G3) Much of the northern half of the US — NV, UT, CO, NE, KS, MO, OH, VA.
Kp 8 Severe Storm (G4) As far south as CA, AZ, NM, TX, AL, GA — rare.
Kp 9 Extreme Storm (G5) Potentially visible across nearly the entire continental US — very rare.
Expanded view