669
FXXX10 KWNP 020031
DAYTDF

:Product: 3-Day Forecast
:Issued: 2025 Nov 02 0030 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Product description and SWPC contact on the Web
# http://www.swpc.noaa.gov/wwire.html
#
#             3-Day Forecast
#
A. NOAA Geomagnetic Activity Observation and Forecast

The greatest observed 3 hr Kp over the past 24 hours was 3 (below NOAA
Scale levels).
The greatest expected 3 hr Kp for Nov 02-Nov 04 2025 is 4.33 (below NOAA
Scale levels).

NOAA Kp index breakdown Nov 02-Nov 04 2025

             Nov 02       Nov 03       Nov 04
00-03UT       3.00         2.67         2.67
03-06UT       2.33         3.67         2.67
06-09UT       2.00         3.00         2.33
09-12UT       4.33         2.67         2.33
12-15UT       3.33         2.33         2.33
15-18UT       3.00         2.33         2.33
18-21UT       2.33         2.00         2.00
21-00UT       3.33         2.67         2.33

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 2025

              Nov 02  Nov 03  Nov 04
S1 or greater    5%      5%      5%

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 2025

              Nov 02        Nov 03        Nov 04
R1-R2           25%           35%           45%
R3 or greater    5%           10%           10%

Rationale: There exists a chance for R1-R2 (Minor-Moderate) radio
blackouts, with a slight chance for R3 (Strong), over 02-04 Nov.