889
FXXX10 KWNP 031231
DAYTDF

:Product: 3-Day Forecast
:Issued: 2026 Mar 03 1230 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 Mar 03-Mar 05 2026 is 3.67 (below NOAA
Scale levels).

NOAA Kp index breakdown Mar 03-Mar 05 2026

             Mar 03       Mar 04       Mar 05
00-03UT       1.00         3.67         2.67
03-06UT       2.67         3.33         2.67
06-09UT       2.33         2.33         1.33
09-12UT       2.33         2.00         1.67
12-15UT       2.00         1.33         1.33
15-18UT       2.33         2.00         1.67
18-21UT       3.33         2.00         1.67
21-00UT       3.67         2.00         1.33

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 Mar 03-Mar 05 2026

              Mar 03  Mar 04  Mar 05
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 Mar 03-Mar 05 2026

              Mar 03        Mar 04        Mar 05
R1-R2           30%           30%           30%
R3 or greater    5%            5%            5%

Rationale: There is a chance for R1-R2 (Minor-Moderate) radio blackouts
through 05 Mar.