VA2OM > SOLAR 22.12.25 09:30l 53 Lines 1989 Bytes #200 (0) @ WW BID : 55307_VE2PKT Subj: Solar and Geomagnetic Activity Path: ED1ZAC<ED1ZAC<IZ3LSV<IW0QNL<JH4XSY<N3HYM<W9GM<VE2PKT Sent: 251222/1011Z 55307@VE2PKT.#TRV.QC.CAN.NOAM LinBPQ6.0.25 :Product: Weekly Highlights and Forecasts :Issued: 2025 Dec 22 0335 UTC # Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center # Product description and SWPC contact on the Web # https://www.swpc.noaa.gov/content/subscription-services # # Weekly Highlights and Forecasts # Highlights of Solar and Geomagnetic Activity 15 - 21 December 2025 Solar activity reached high levels on 19-21 Dec. There were three M1 flares from an unnumbered region beyond the east limb, Region 4315 (N19E58, L=35, class/area Bxo/10 on 20 Dec) and Region 4316 (S07E28, L=45, class/area Dsi/50 on 21 Dec. Low levels with only C-class activity was observed on 15-18 Dec. These two numbered regions also produced numerous C-class flares. No significant CME activity was observed on the Earth-facing disk. No proton events were observed at geosynchronous orbit. The greater than 2 MeV electron flux at geosynchronous orbit reached high levels on 17-21 Dec due to coronal hole high speed stream influences. Normal to moderate levels were observed on 15-16 Dec. Geomagnetic field activity reached G1 (Minor) storm levels on 17 and 21 Dec due to CH HSS influences. Active levels were observed on 18 Dec. Quiet to unsettled levels were observed on 15-16, and 19-20 Dec. Forecast of Solar and Geomagnetic Activity 22 December - 17 January 2026 Solar activity is expected to be at low to moderate levels for the outlook period. No proton events are expected at geosynchronous orbit. The greater than 2 MeV electron flux at geosynchronous orbit is expected to be at high levels on 25-29 Dec, 1-6 Jan, and 14-17 Jan. All due to recurrent CH HSS influences. Geomagnetic field activity is expected to be at G2 (Moderate) storm levels on 30 Dec; G1 (Minor) storm levels are expected on 22-23 Dec, 31 Dec, and 17 Jan, active levels are expected on 24-25 Dec, 01-02 Jan, 09-10 Jan, and 12-14 Jan. All due to recurrent CH HSS influences. 73 de VA2OM, SYSOP of VE2PKT
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