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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 04.05.26 18:16l 66 Lines 2837 Bytes #2 (0) @ WW BID : 7261_VE2PKT Read: GUEST Subj: Solar and Geomagnetic Activity Path: JH4XSY<N3HYM<VE3CGR<VE2PKT Sent: 260504/0912Z 7261@VE2PKT.#TRV.QC.CAN.NOAM LinBPQ6.0.25 :Product: Weekly Highlights and Forecasts :Issued: 2026 May 04 0142 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 27 April - 03 May 2026 Solar activity reached moderate levels on 27 and 18 Apr due to M-class (R1-Minor) activity from Region 4425 (N05, L=162, class/area=Ekc/320 on 28 Apr) and 4420 (S18, L=246, class/area=Eki/300 on 21 Sep). Region 4420 produced the strongest flare of the period, an M1.5/Sn (R1) flare at 28/1353 UTC. The region also produced two Type II radio sweeps alongside C-class activity. The ejecta associated with the activity originated from near the NW limb and was not suspected to contain an Earth-directed component. The other 13 numbered active regions on the visible disk were either mostly quiet or only produced C-class X-ray activity. No other Earth-directed CMEs were identified in available coronagraph imagery. No proton events were observed at geosynchronous orbit. The greater than 2 MeV electron flux at geosynchronous orbit was normal to moderate levels over the past seven days. Geomagnetic field activity reached G1 (Minor) geomagnetic storm levels on 30 Apr and active levels on 01 May due to influence from a negative polarity CH HSS. Total magnetic field strength reached a brief peak of 14 nT on 30 Apr, with Bz reaching as far south as -12 nT. Solar wind speeds peak at just over 500 km/s early on 01 May and gradually waned over the next two days. The remainder of the period was at quiet to unsettled levels. Forecast of Solar and Geomagnetic Activity 04 May - 30 May 2026 Solar activity is likely to be at low levels with a chance for M-Class (R1/R2-Minor/Moderate) throughout the outlook period due to the flare potential of multiple regions on the visible disk as well as multiple complex regions due to return from the Sun's farside. No proton events are expected at geosynchronous orbit. The greater than 2 MeV electron flux at geosynchronous orbit is likely to reach high levels on 15-20 May due to influence from a recurrent, negative polarity coronal hole. The remainder of the outlook period is expected to at normal to moderate levels. Geomagnetic field activity is expected to reach G1 (Minor) geomagnetic storm levels on 15-17 May; active levels are likely on 08 May, 18 May, 23 May, and 27 May; unsettled levels are likely on 04 May, 09 May, 21-22 May, and 27 May. All enhancements in geomagnetic activity are forecast in anticipation of influence fron multiple, recurrent, coronal hole HSSs. The remainder of the outlook period is expected to be at mostly quiet levels. 73 de VA2OM, SYSOP of VE2PKT
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