3-Day Forecast

Issued: 2019 Jul 20 0030 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 2 (below NOAA Scale levels).

The greatest expected 3 hr Kp for Jul 20-Jul 22 2019 is 3 (below NOAA Scale levels).

NOAA Kp index breakdown

            Jul 20     Jul 21     Jul 22
00-03UT        2          2          2     
03-06UT        1          1          2     
06-09UT        1          1          1     
09-12UT        1          1          1     
12-15UT        3          1          1     
15-18UT        3          1          2     
18-21UT        2          2          3     
21-00UT        3          2          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-14 over the past 24 hours, was below S-scale storm level thresholds.

Solar Radiation Storm Forecast for Jul 20-Jul 22 2019

              Jul 20  Jul 21  Jul 22
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 Jul 20-Jul 22 2019

              Jul 20        Jul 21        Jul 22
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.

Latest news

Support SpaceWeatherLive.com!

A lot of people come to SpaceWeatherLive to follow the Sun's activity or if there is aurora to be seen, but with more traffic comes higher server costs. Consider a donation if you enjoy SpaceWeatherLive so we can keep the website online!

100%

Latest alerts

Get instant alerts!

Space weather facts

Last X-flare:2017/09/10X8.2
Last M-flare:2017/10/20M1.0
Last geomagnetic storm:2019/07/10Kp5 (G1)
Number of spotless days in 2019:131
Current stretch spotless days:13

This day in history*

Solar flares
12002X3.3
22004M8.6
32000M5.0
42000M3.6
52002C9.6
ApG
1200036G2
2201622G1
3200520G1
4201118
5200218
*since 1994

Social networks