Aurora & Space Weather
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27-day space weather outlook

NOAA's 27-day outlook of the 10.7 cm solar radio flux, the planetary A index and the largest expected Kp index for each day.

Last updated:

Issued by NOAA:

These are NOAA forecasts, not our own. For official space weather alerts and warnings, refer to NOAA SWPC or your national space weather service. NOAA SWPC · Aurora Dashboard
Largest Kp per day, NOAA 27-day outlookG1 (Kp 5)9/28: 29/289/29: 29/30: 210/1: 210/2: 210/210/3: 210/4: 410/5: 410/6: 410/610/7: 310/8: 310/9: 210/10: 210/1010/11: 310/12: 310/13: 310/14: 310/1410/15: 210/16: 210/17: 210/18: 210/1810/19: 210/20: 210/21: 410/22: 510/2210/23: 410/24: 4
Date (UTC)10.7 cm radio fluxPlanetary A indexLargest Kp
Sep 28, 20269852
Sep 29, 202610052
Sep 30, 202610552
Oct 1, 202610552
Oct 2, 202610052
Oct 3, 20269552
Oct 4, 202690124
Oct 5, 202691154
Oct 6, 202691124
Oct 7, 202692103
Oct 8, 20269383
Oct 9, 20269552
Oct 10, 20269852
Oct 11, 202610093
Oct 12, 202610283
Oct 13, 202610283
Oct 14, 202610083
Oct 15, 202610252
Oct 16, 202610252
Oct 17, 202610052
Oct 18, 20269852
Oct 19, 20269752
Oct 20, 20269652
Oct 21, 202694154
Oct 22, 202692205
Oct 23, 202690154
Oct 24, 202688124