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home | newest check | boards | help index | log | ps | userlogin | send sysop | slog | status forward | bcm news | users | version | remove cookieVA2OM > SOLAR 05.10.26 18:17l 60 Lines 2471 Bytes #19 (0) @ WW BID : 19937_VE2PKT Subj: Solar and Geomagnetic Activity Path: JH4XSY<N3HYM<K5DAT<VE2PKT Sent: 261005/0917Z 19937@VE2PKT.#TRV.QC.CAN.NOAM LinBPQ6.0.25 :Product: Weekly Highlights and Forecasts :Issued: 2026 Oct 05 0139 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 28 September - 04 October 2026 Solar activity was at very low to low levels throughout the summary period. Region 4535 (N11, L=351, class/area Dao/060 on 30 Sep) produced the strongest flare of the period; an impulsive C8.6/1f event at 30/0246 UTC. This event also produced a 523 km/s Type II and a Type IV Sweep. All other regions remained simple and absent of any significant activity. No Earth-directed CMEs were observed in available coronagraph imagery. No proton events were observed at geosynchronous orbit. The greater than 2 MeV electron flux at geosynchronous orbit reached high levels on 28-30 Sep and 01 Oct with a peak of 5,620 pfu observed at 29/1620 UTC. Moderate levels were observed on 02-04 Oct. Geomagnetic field activity was at quiet levels on 28-30 Sep and 01-03 Oct with some isolated unsettled periods observed early on 03 Oct. On 04 Oct, solar wind parameters became enhanced due to the influence of a positive polarity CH HSS. Total magnetic field strength increased to a peak of 22 nT and Bz observed several southward deflections, the maximum being -20 nT early on 04 Oct. Solar wind speeds steadily increased from about 300 km/s to a peak of 644 km/s later on 04 Oct. The phi angle was predominately positive. Forecast of Solar and Geomagnetic Activity 05 October - 31 October 2026 Solar activity is likely to continue at very low to low levels throughout 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 06-11 Oct, 14-17 Oct, and 23-28 Oct due to anticipated incluence from multiple, recurrent CH HSSs. Geomagnetic field activity is expected to reach G1 (Minor) geomagnetic storm levels on 22 and 31 Oct. Active levels are likely on 06, 21, and 23 Oct. Unsettled levels are likely on 07, 11-14, and 24 Oct. All increases in geomagnetic activity are associated with anticipated influence from multiple, recurrent, coronal hole HSSs. The remainder of the outlook period is likely to be at mostly quiet levels. 73 de VA2OM, SYSOP of VE2PKT
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