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Routine Space Environment Product (Daily)
Issued by NWS
Issued by NWS
889 FXXX10 KWNP 161231 DAYTDF :Product: 3-Day Forecast :Issued: 2024 Aug 16 1230 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 Aug 16-Aug 18 2024 is 5.33 (NOAA Scale G1). NOAA Kp index breakdown Aug 16-Aug 18 2024 Aug 16 Aug 17 Aug 18 00-03UT 2.67 3.00 5.00 (G1) 03-06UT 2.00 2.67 5.33 (G1) 06-09UT 2.00 2.67 4.67 (G1) 09-12UT 2.33 2.00 4.00 12-15UT 1.67 2.67 3.67 15-18UT 2.00 3.33 3.67 18-21UT 3.00 4.33 3.00 21-00UT 2.67 4.33 2.67 Rationale: G1 (Minor) geomagnetic storming is likely on 18 Aug due to the anticipated arrival of a CME from 14 Aug. 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 Aug 16-Aug 18 2024 Aug 16 Aug 17 Aug 18 S1 or greater 10% 10% 10% Rationale: There is a slight chance for S1 (Minor) solar radiation storms over 16-18 Aug. C. NOAA Radio Blackout Activity and Forecast No radio blackouts were observed over the past 24 hours. Radio Blackout Forecast for Aug 16-Aug 18 2024 Aug 16 Aug 17 Aug 18 R1-R2 70% 70% 70% R3 or greater 20% 20% 20% Rationale: R1-R2 (Minor-Moderate) radio blackouts are likely, with a slight chance for R3 or greater events, through 18 Aug.