MSGID: 1:18/200@fidonet 6692e3d2   
   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 26 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 Jun 26-Jun 28 2025 is 5.33 (NOAA Scale   
   G1).   
      
   NOAA Kp index breakdown Jun 26-Jun 28 2025   
      
                Jun 26       Jun 27       Jun 28   
   00-03UT       5.33 (G1)    4.00         3.67   
   03-06UT       5.00 (G1)    4.67 (G1)    3.33   
   06-09UT       4.00         4.00         3.00   
   09-12UT       3.67         3.33         2.67   
   12-15UT       3.00         2.33         2.33   
   15-18UT       3.00         2.33         2.33   
   18-21UT       4.00         2.67         2.67   
   21-00UT       5.00 (G1)    3.00         2.67   
      
   Rationale: G1 (Minor) geomagnetic storming is likely, with a chance for   
   an insolated G2 (Moderate) storming period, on 26-27 June due to   
   negative polarity CH HSS effects.   
      
   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 26-Jun 28 2025   
      
                 Jun 26  Jun 27  Jun 28   
   S1 or greater    5%      5%      5%   
      
   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 Jun 26-Jun 28 2025   
      
                 Jun 26        Jun 27        Jun 28   
   R1-R2           30%           35%           35%   
   R3 or greater    5%            5%            5%   
      
   Rationale: A chance for R1-R2 (Minor-Moderate) radio blackouts, with a   
   slight chance for X-class flares (R3-Strong), will persist through 28   
   June.   
      
      
      
   --- MBSE BBS v1.1.1 (Linux-x86_64)   
    * Origin: Outpost BBS * Johnson City, TN (1:18/200)   
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