:Product: 3-Day Forecast
:Issued: 2019 Jun 18 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 1 (below NOAA
Scale levels).
The greatest expected 3 hr Kp for Jun 18-Jun 20 2019 is 4 (below NOAA
Scale levels).

NOAA Kp index breakdown Jun 18-Jun 20 2019

            Jun 18     Jun 19     Jun 20
00-03UT        2          3          2     
03-06UT        3          3          3     
06-09UT        3          2          2     
09-12UT        2          1          2     
12-15UT        2          1          1     
15-18UT        2          2          2     
18-21UT        3          3          2     
21-00UT        4          3          2     

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

NA

Solar Radiation Storm Forecast for Jun 18-Jun 20 2019

              Jun 18  Jun 19  Jun 20
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

NA

Radio Blackout Forecast for Jun 18-Jun 20 2019

              Jun 18        Jun 19        Jun 20
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.