:Product: 3-Day Forecast :Issued: 2025 Mar 14 1230 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 6 (NOAA Scale G2). The greatest expected 3 hr Kp for Mar 14-Mar 16 2025 is 5.67 (NOAA Scale G2). NOAA Kp index breakdown Mar 14-Mar 16 2025 Mar 14 Mar 15 Mar 16 00-03UT 5.67 (G2) 4.00 3.33 03-06UT 3.33 4.00 3.33 06-09UT 3.67 3.33 2.00 09-12UT 3.00 3.67 2.00 12-15UT 5.00 (G1) 3.67 2.00 15-18UT 3.67 3.33 1.67 18-21UT 3.33 4.00 3.00 21-00UT 3.00 4.00 3.33 Rationale: G1 Minor storming conditions are still possible early in the period on 14 Mar as the elevated conditions linger. 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 Mar 14-Mar 16 2025 Mar 14 Mar 15 Mar 16 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 14-Mar 16 2025 Mar 14 Mar 15 Mar 16 R1-R2 50% 50% 50% R3 or greater 10% 10% 10% Rationale: There is an increased chance for M-class flaring (R1-R2, Minor-Moderate) on 14-16 Mar.

1 / 1 页

首页 尾页