:Product: 3-Day Forecast
:Issued: 2026 Mar 07 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 3 (below NOAA
Scale levels).
The greatest expected 3 hr Kp for Mar 07-Mar 09 2026 is 3.67 (below NOAA
Scale levels).

NOAA Kp index breakdown Mar 07-Mar 09 2026

             Mar 07       Mar 08       Mar 09
00-03UT       2.67         2.67         2.67     
03-06UT       3.67         3.67         2.67     
06-09UT       3.67         2.67         3.67     
09-12UT       2.67         2.67         2.67     
12-15UT       2.67         1.67         1.67     
15-18UT       2.67         1.67         1.67     
18-21UT       2.67         2.67         2.67     
21-00UT       3.67         3.00         2.67     

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 Mar 07-Mar 09 2026

              Mar 07  Mar 08  Mar 09
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 07-Mar 09 2026

              Mar 07        Mar 08        Mar 09
R1-R2           20%           20%           20%
R3 or greater    1%            1%            1%

Rationale: There is a slight chance for R1-R2 (Minor-Moderate) radio
blackouts through 09 Mar.