Forecast of the auroral oval boundaries for the next hour
www.spaceweather.ru
Space Research Institute RAS, Moscow
iki.cosmos.ru

Forecast for:
UT  19:00-20:00, 13.12.2025
MSK 22:00-23:00, 13.12.2025

Poleward boundary of the auroral oval
Magnetic local time:           00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23
Geomagnetic latitude, degrees: 72 72 73 73 74 74 74 74 74 74 75 75 76 75 75 74 74 73 73 73 73 73 73 72

Equatorward boundary of the auroral oval
Magnetic local time:           00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23
Geomagnetic latitude, degrees: 63 63 64 64 65 66 67 69 70 71 72 73 73 73 73 72 72 71 69 68 67 66 65 64

Equatorward boundary of the diffuse aurora
Magnetic local time:           00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23
Geomagnetic latitude, degrees: 61 60 61 61 62 62 62 63 63 64 65 66 67 67 68 68 68 67 66 65 64 63 62 61

Current AL index: -199
AL index is estimated on the basis of real-time DSCOVR magnetic field and solar wind speed

Updated at:
UT  18:05, 13.12.2025
MSK 21:05, 13.12.2025

Questions, comments and suggestions are welcomed at
Anatoli Petrukovich,   a.petrukovich@cosmos.ru
Tatiana Podladchikova, t.podladchikova@skoltech.ru