Routine Space Environment Product (Daily)
Issued by NWS
Issued by NWS
879 FXXX10 KWNP 300031 DAYTDF :Product: 3-Day Forecast :Issued: 2024 Sep 30 0030 UTC # Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center # Product description and SWPC contact on the Web # http://www.swpc.noaa.gov/wwire.html # # 3-Day Forecast # 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 Sep 30-Oct 02 2024 is 4.00 (below NOAA Scale levels). NOAA Kp index breakdown Sep 30-Oct 02 2024 Sep 30 Oct 01 Oct 02 00-03UT 3.00 1.33 1.67 03-06UT 2.00 1.33 1.33 06-09UT 4.00 1.33 1.33 09-12UT 2.00 1.67 1.33 12-15UT 2.67 1.67 1.33 15-18UT 1.00 1.67 1.33 18-21UT 1.00 1.33 1.67 21-00UT 1.00 1.33 1.67 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 Sep 30-Oct 02 2024 Sep 30 Oct 01 Oct 02 S1 or greater 5% 5% 5% 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 Sep 29 2024 1441 UTC. Radio Blackout Forecast for Sep 30-Oct 02 2024 Sep 30 Oct 01 Oct 02 R1-R2 55% 55% 55% R3 or greater 10% 10% 10% Rationale: R1-R2 (Minor-Moderate) radio blackouts are likely, with a slight chance or R3 or greater events, over 30 Sep-02 Oct.