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SPACE ENVIRONMENT FORECAST
SUN ,  Aug 16 , 2026
MON ,  Aug 17 , 2026
TUE ,  Aug 18 , 2026
DAILY REPORTS
 
Space Environment Summary
During the past 24 hours, solar activity was low. Eight active sunspot regions were on the visible disk without any M-class or above flares produced. The solar wind speed slowly decreased to about 360 km/s. The geomagnetic field was quiet to unsettled.
Published: 2026-08-16 00:30 UTC
Forecaster: 022/027
 
Space Environment Forecast
Within the next three days, solar activity is expected to be mainly low with a slight chance for M-class flares. The geomagnetic field is expected to be quiet to unsettled on 16 Aug. It will reach active to storm levels on 17-18 Aug due to the effects of the CME produced on 14 Aug.
Published: 2026-08-16 00:30 UTC
Forecaster: 022/027
 
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
115 114 114
24HR 48HR 72HR
6 25 12
 
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 20% 20% 20%
X 1% 1% 1%
CLASS 24HR 48HR 72HR
Minor 1% 60% 30%
Major 1% 20% 10%
 
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% 10% 1%
24HR 48HR 72HR
1% 1% 1%
right_bar
24-hr Max:C3.8
Peak Time:2026 Aug 16 03:18 UTC
 
Updated:2026 Aug 16 18:11 UTC
>>more data<<
Current 5-min:2.059e-1 /cm2.sr.s
24-hr Max:3.576e-1 /cm2.sr.s
 
Updated:2026 Aug 16 18:05 UTC
>>more data<<
Speed:303.97 km/sec
Density:1.6 protons/cm3
 
Updated:2026 Aug 16 18:09 UTC
>>more data<<
Current:Kp=0
24-hr Max:Kp=3
 
Updated:2026 Aug 16 15:00 UTC
>>more data<<
Current 5-min:1.210e+2 /cm2.sr.s
Integral Flux:1.580e+7 /cm2.sr.day
 
Updated:2026 Aug 16 18:05 UTC
>>more data<<
10.7cm Flux:117 sfu
 
Update:2026 Aug 15 UTC
>>more data<<
SSN:111
 
Update:2026 Aug 15 UTC
>>more data<<