MSGID: 1:18/200@fidonet 66952473   
   PID: MBSE-FIDO 1.1.6 (Linux-x86_64)   
   CHRS: CP437 2   
   TZUTC: -0500   
   TID: MBSE-FIDO 1.1.6 (Linux-x86_64)   
      :Product: 3-Day Forecast :Issued: 2025 Dec 13 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 5 (NOAA Scale G1). The greatest expected 3   
      hr Kp for Dec 13-Dec 15 2025 is 4.67 (NOAA Scale G1). NOAA Kp index   
      breakdown Dec 13-Dec 15 2025 Dec 13 Dec 14 Dec 15 00-03UT 4.33 3.67 2.33   
      03-06UT 4.33 3.00 2.00 06-09UT 4.67 (G1) 2.67 2.00 09-12UT 3.67 2.67 2.00   
      12-15UT 2.67 2.67 2.00 15-18UT 2.67 2.00 2.00 18-21UT 3.33 2.00 2.00   
      21-00UT 3.67 2.67 2.33 Rationale: G1 (Minor) geomagnetic storm levels are   
      expected on 13 Dec due to ongoing CH HSS influence. 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 Dec 13-Dec 15 2025 Dec 13   
      Dec 14 Dec 15 S1 or greater 5% 5% 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 Radio blackouts reaching the R1 levels were   
      observed over the past 24 hours. The largest was at Dec 12 2025 0505 UTC.   
      Radio Blackout Forecast for Dec 13-Dec 15 2025 Dec 13 Dec 14 Dec 15 R1-R2   
      55% 45% 35% R3 or greater 5% 1% 1% Rationale: R1-R2 (Minor-Moderate) radio   
      blackouts are likely on 13 Dec due to the potential of Region 4296 and   
      4294 near the W limb.   
      
      
   --- MBSE BBS v1.1.6 (Linux-x86_64)   
    * Origin: Outpost BBS * Johnson City, TN (1:18/200)   
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