:Product: 3-Day Forecast
:Issued: 2026 Nov 02 0030 UTC
# Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center
#
A. NOAA Geomagnetic Activity Observation and Forecast

The greatest observed 3 hr Kp over the past 24 hours was 5 (NOAA Scale
G1).
The greatest expected 3 hr Kp for Nov 02-Nov 04 2026 is 3.00 (below NOAA
Scale levels).

NOAA Kp index breakdown Nov 02-Nov 04 2026

             Nov 02       Nov 03       Nov 04
00-03UT       2.67         1.67         1.67         
03-06UT       3.00         2.00         2.00         
06-09UT       3.00         1.67         1.67         
09-12UT       2.67         1.33         1.33         
12-15UT       2.00         0.67         1.33         
15-18UT       2.00         0.67         0.67         
18-21UT       1.67         1.67         0.67         
21-00UT       2.00         1.33         1.67         

Rationale: No G1 (Minor) or greater geomagnetic storms are expected. No
significant transient or recurrent solar wind features are forecast.

B. NOAA Solar Radiation Activity Observation and Forecast

Solar radiation, as observed by NOAA GOES-18 over the past 24 hours, was
below S-scale storm level thresholds.

Solar Radiation Storm Forecast for Nov 02-Nov 04 2026

              Nov 02  Nov 03  Nov 04
S1 or greater    1%      1%      1%

Rationale: No S1 (Minor) or greater solar radiation storms are expected.
No significant active region activity favorable for radiation storm
production is forecast.

C. NOAA Radio Blackout Activity and Forecast

No radio blackouts were observed over the past 24 hours.

Radio Blackout Forecast for Nov 02-Nov 04 2026

              Nov 02        Nov 03        Nov 04
R1-R2            1%            1%            1%
R3 or greater    1%            1%            1%

Rationale: No R1 (Minor) or greater radio blackouts are expected. No
significant active region flare activity is forecast.