MSGID: 1:18/200@fidonet 66958bdd   
   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 30 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 3 (below NOAA   
   Scale levels).   
   The greatest expected 3 hr Kp for Dec 30-Jan 01 2026 is 5.00 (NOAA Scale   
   G1).   
      
   NOAA Kp index breakdown Dec 30-Jan 01 2026   
      
                Dec 30       Dec 31       Jan 01   
   00-03UT       1.33         1.67         5.00 (G1)   
   03-06UT       1.33         1.67         4.33   
   06-09UT       1.33         2.00         3.67   
   09-12UT       1.33         2.00         3.33   
   12-15UT       1.67         2.33         3.33   
   15-18UT       2.00         2.67         4.00   
   18-21UT       2.67         3.33         3.67   
   21-00UT       3.00         4.33         3.33   
      
   Rationale: No G1 (Minor) or greater geomagnetic storms are expected   
   through 31 Dec. G1 (Minor) geomagnetic storms are likely on 01 Jan due   
   to recurrent solar wind features combined with potential transient   
   features.   
      
   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 30-Jan 01 2026   
      
                 Dec 30  Dec 31  Jan 01   
   S1 or greater   10%     10%     10%   
      
   Rationale: There is a slight chance for a flux above the S1 (Minor) or   
   greater threshold due to the flaring potential of the active regions on   
   the visible solar disk.   
      
   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 29 2025 0651 UTC.   
      
   Radio Blackout Forecast for Dec 30-Jan 01 2026   
      
                 Dec 30        Dec 31        Jan 01   
   R1-R2           55%           55%           55%   
   R3 or greater   10%           10%           10%   
      
   Rationale: R1/R2 (Minor-Moderate) radio blackouts are likely on 30-31   
   Dec and 01 Jan due to the flare potential of the current active regions.   
   There is a slight chance for isolated R3 (Strong) events during the   
   3-day period.   
      
      
      
   --- MBSE BBS v1.1.6 (Linux-x86_64)   
    * Origin: Outpost BBS * Johnson City, TN (1:18/200)   
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