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SPACE ENVIRONMENT FORECAST
THU ,  May 28 , 2026
FRI ,  May 29 , 2026
SAT ,  May 30 , 2026
DAILY REPORTS
 
Space Environment Summary
During the past 24 hours, solar activity was low. Eleven sunspot active regions were on the visible disk without any M-class or above flare produced. The solar wind speed maintained at about 410 km/s. The geomagnetic field was at quiet to unsettled levels.
Published: 2026-05-28 00:30 UTC
Forecaster: 027/026
 
Space Environment Forecast
Within the next three days, solar activity is expected to be low to moderate with chances for M-class flares. The geomagnetic field is expected to be mainly quiet to unsettled with isolated periods for active levels.
Published: 2026-05-28 00:30 UTC
Forecaster: 027/026
 
F10.7 Index Ap Index
The 10.7-cm solar radio flux forecast for the next 24/48/72 hours.
Geomagnetic Ap index forecast for the next 24/48/72 hours.
24HR 48HR 72HR
144 143 140
24HR 48HR 72HR
13 10 10
 
Solar X-ray Flare Geomagnetic Storm
Probabilities for M and X class solar flares for the next 24/48/72 hours. Probabilities for minor and major disturbances in Geomagnetic field for the next 24/48/72 hours.
CLASS 24HR 48HR 72HR
M 50% 50% 50%
X 10% 10% 10%
CLASS 24HR 48HR 72HR
Minor 20% 10% 10%
Major 1% 1% 1%
 
Solar Proton Event Relativisitic Electron Enhancement
Probabilities for solar proton event for the next 24/48/72 hours.
Probabilities for GEO relativistic electrons enhancement event for the next 24/48/72 hours.
24HR 48HR 72HR
1% 1% 1%
24HR 48HR 72HR
1% 1% 1%
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24-hr Max:C3.2
Peak Time:2026 May 28 15:16 UTC
 
Updated:2026 May 28 22:54 UTC
>>more data<<
Current 5-min:2.213e-1 /cm2.sr.s
24-hr Max:5.439e-1 /cm2.sr.s
 
Updated:2026 May 28 22:45 UTC
>>more data<<
Speed:451.9 km/sec
Density:4.7 protons/cm3
 
Updated:2026 May 28 22:54 UTC
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Current:Kp=3
24-hr Max:Kp=4
 
Updated:2026 May 28 21:00 UTC
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Current 5-min:0.000e+0 /cm2.sr.s
Integral Flux:1.628e+7 /cm2.sr.day
 
Updated:2026 May 28 22:45 UTC
>>more data<<
10.7cm Flux:145 sfu
 
Update:2026 May 28 UTC
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SSN:165
 
Update:2026 May 27 UTC
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