MSGID: 1:18/200@fidonet 6690b5bc   
   PID: MBSE-FIDO 1.1.1 (Linux-x86_64)   
   CHRS: CP437 2   
   TZUTC: -0400   
   TID: MBSE-FIDO 1.1.1 (Linux-x86_64)   
   :Product: 3-Day Forecast   
   :Issued: 2025 Apr 18 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 4 (below NOAA   
   Scale levels).   
   The greatest expected 3 hr Kp for Apr 18-Apr 20 2025 is 4.00 (below NOAA   
   Scale levels).   
      
   NOAA Kp index breakdown Apr 18-Apr 20 2025   
      
                Apr 18       Apr 19       Apr 20   
   00-03UT       2.67         2.67         2.33   
   03-06UT       3.00         2.00         3.00   
   06-09UT       4.00         2.67         2.33   
   09-12UT       3.00         2.33         1.67   
   12-15UT       2.33         2.33         1.33   
   15-18UT       1.67         2.33         1.00   
   18-21UT       1.67         2.33         1.67   
   21-00UT       2.33         2.33         2.00   
      
   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 Apr 18-Apr 20 2025   
      
                 Apr 18  Apr 19  Apr 20   
   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 Apr 18-Apr 20 2025   
      
                 Apr 18        Apr 19        Apr 20   
   R1-R2           55%           55%           55%   
   R3 or greater   10%           10%           10%   
      
   Rationale: Isolated R1-2 (Minor-Moderate) radio blackouts are likely   
   through 20 Apr.   
      
      
      
   --- MBSE BBS v1.1.1 (Linux-x86_64)   
    * Origin: Outpost BBS * Johnson City, TN (1:18/200)   
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