MSGID: 1:18/200@fidonet 66923af8   
   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 Jun 05 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 Jun 05-Jun 07 2025 is 5.67 (NOAA Scale   
   G2).   
      
   NOAA Kp index breakdown Jun 05-Jun 07 2025   
      
                Jun 05       Jun 06       Jun 07   
   00-03UT       4.67 (G1)    3.33         3.33   
   03-06UT       5.67 (G2)    4.00         3.67   
   06-09UT       4.67 (G1)    3.67         3.00   
   09-12UT       4.00         3.00         2.33   
   12-15UT       3.33         3.00         2.00   
   15-18UT       3.00         2.00         3.00   
   18-21UT       4.00         2.00         3.67   
   21-00UT       4.00         2.67         4.67 (G1)   
      
   Rationale: G1 to G2 (Minor-Moderate) geomagnetic storming is likely on   
   05 Jun due to waning CME and CH HSS influences. G1 (Minor) geomagnetic   
   storming is likely again on 07 Jun due to CME influences from the 04 Jun   
   filament eruption.   
      
   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 Jun 05-Jun 07 2025   
      
                 Jun 05  Jun 06  Jun 07   
   S1 or greater   10%     10%     10%   
      
   Rationale: A slight chance for S1 (Minor) solar radiation storms will   
   persist through 07 Jun given the flare potential and history of AR 4100   
   in particular.   
      
   C. NOAA Radio Blackout Activity and Forecast   
      
   Radio blackouts reaching the R1 levels were observed over the past 24   
   hours. The largest was at Jun 04 2025 2328 UTC.   
      
   Radio Blackout Forecast for Jun 05-Jun 07 2025   
      
                 Jun 05        Jun 06        Jun 07   
   R1-R2           45%           45%           45%   
   R3 or greater   10%           10%           10%   
      
   Rationale: A chance for R1-2 (Minor-Moderate) radio blackouts, with a   
   slight chance for an isolated R3 (Strong) event, will persist through 07   
   Jun.   
      
      
      
   --- MBSE BBS v1.1.1 (Linux-x86_64)   
    * Origin: Outpost BBS * Johnson City, TN (1:18/200)   
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