3-Day Forecast

Issued: 2020 Mar 31 1230 UTC
Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center and processed by SpaceWeatherLive.com

A. NOAA Geomagnetic Activity Observation and Forecast

The greatest observed 3 hr Kp over the past 24 hours was 4 (below NOAA Scale levels).

The greatest expected 3 hr Kp for Mar 31-Apr 02 2020 is 4 (below NOAA Scale levels).

NOAA Kp index breakdown

            Mar 31     Apr 01     Apr 02
00-03UT        4          3          3     
03-06UT        4          2          2     
06-09UT        4          2          2     
09-12UT        2          2          2     
12-15UT        2          2          2     
15-18UT        2          2          2     
18-21UT        2          2          2     
21-00UT        3          3          2     

Rationale
No G1 (Minor) or greater geomagnetic storms are expected. Unsettled to active levels are expected on 31 Mar due to CH HSS effects.

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 Mar 31-Apr 02 2020

              Mar 31  Apr 01  Apr 02
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 31-Apr 02 2020

              Mar 31        Apr 01        Apr 02
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.

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