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  NOAA 3 Day Space Weather Forecast
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The greatest observed 3 hr Kp over the past 24 hours was 2 (below NOAA
Scale levels).
The greatest expected 3 hr Kp for Oct 26-Oct 28 2021 is 3 (below NOAA
Scale levels).

NOAA Kp index breakdown Oct 26-Oct 28 2021

            Oct 26     Oct 27     Oct 28
00-03UT        2          2          2     
03-06UT        2          2          3     
06-09UT        1          3          3     
09-12UT        1          2          2     
12-15UT        2          1          1     
15-18UT        2          2          2     
18-21UT        3          2          3     
21-00UT        3          3          3     

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-16 over the past 24 hours, was
below S-scale storm level thresholds.

Solar Radiation Storm Forecast for Oct 26-Oct 28 2021

              Oct 26  Oct 27  Oct 28
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

Radio blackouts reaching the R1 levels were observed over the past 24
hours. The largest was at Oct 26 2021 0247 UTC.

Radio Blackout Forecast for Oct 26-Oct 28 2021

              Oct 26        Oct 27        Oct 28
R1-R2           20%           20%           20%
R3 or greater    1%            1%            1%

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