Routine Space Environment Product (Daily)
Issued by NWS
Issued by NWS
160 FXXX12 KWNP 101231 DAYDIS :Product: Forecast Discussion :Issued: 2026 Aug 10 1230 UTC # Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center # Product description and SWPC contact on the Web # http://www.swpc.noaa.gov/wwire.html # # Forecast Discussion # Solar Activity .24 hr Summary... Solar activity returned to low levels with weak C-class activity observed from new Region 4505 (N15W85, Dao/beta). This region emerged near the west limb and produced numerous B-class and weak C-class events. New Region 4506 (N10E48, Axx/alpha) was numbered this period and produced B-class activity. No Earth-directed CMEs were observed in available coronagraph imagery. .Forecast... Solar activity is expected to be remain at low levels on 10 Aug, purely due to the flare potential of Region 4505, before decreasing back to very low levels on 11-12 Aug. Solar Orbiter PHI imagery suggests no significant returning regions during the forecast period. Energetic Particle .24 hr Summary... The greater than 2 MeV electron flux at geosynchronous orbit was at moderate levels. The greater than 10 MeV proton flux at geosynchronous orbit remained at background levels. .Forecast... The greater than 2 MeV electron flux is expected to remain at very low to low levels through 12 Aug. The greater than 10 MeV proton flux is expected to remain at background levels through 12 Aug. Solar Wind .24 hr Summary... Solar wind parameters reflected a gradual return to background conditions after the arrival of the CME early on 08 Aug. Total field (Bt) was steady at 5-6 nT, while the Bz component varied between +/-5 nT. Solar wind speed was steady at 400-465 km/s and the phi angle was in a steady negative sector. .Forecast... Moderate background conditions are expected to continue through 10 Aug. The anticipated arrivals of another CH HSS and a CME that left the Sun on 08 Aug are expected to produce a disturbed solar wind late on 11 Aug and into 12 Aug. Geospace .24 hr Summary... The geomagnetic field was at quiet levels. .Forecast... 10 Aug is expected to remain at quiet to isolated unsettled levels. Unsettled conditions are expected to persist through 11 Aug, with the potential for an isolated active period, due to anticipated onset of a positive polarity CH HSS. Active conditions, with the potential for an isolated G1 (Minor) storm period, are anticipated on 12 Aug due to the arrival of a CME that left the Sun on 08 Aug.