Routine Space Environment Product (Daily)
Issued by NWS
Issued by NWS
163 FXXX12 KWNP 101231 DAYDIS :Product: Forecast Discussion :Issued: 2025 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 reached moderate levels. Region 4168 (N05W70, Eao/beta-gamma) produced numerous weak M-class flares (R1-Minor) during the period. The region showed signs of decay as it transited towards the W limb. Region 4172 (N09E04, Eai, bet-gamma) produced numerous C-class flares this period. Only minor changes were observed in other active regions on the visible disk. No Earth-directed CMEs were observed in available coronagraph imagery. .Forecast... Solar activity is likely to continue at moderate levels (R1-R2/Minor-Moderate), with a slight chance for R3 (Strong) events, over 10-12 Aug. Energetic Particle .24 hr Summary... The greater than 2 MeV electron flux was at normal to moderate levels and the greater than 10 MeV proton flux was at background levels. .Forecast... The greater than 2 MeV electron flux is expected to continue at moderate levels, with a chance to reach high, over 10-12 Aug. The greater than 10 MeV proton flux is expected to remain at background levels over 10-12 Aug. Solar Wind .24 hr Summary... Solar wind parameters reflected a transition from a CIR into a positive polarity CH HSS proper after ~09/1530 UTC. Total magnetic field strength decreased from 16 nT to ~6 nT by the end of the UT day. The Bz component was primarily southward before 09/1530 UTC, with values as low as -15 nT observed. Solar wind speeds increased from ~450 km/s to ~600 km/s by the end of the reporting period. Phi angle was predominantly oriented in the positive solar sector. .Forecast... Enhancements in the solar wind are likely to continue over the next three days (10-12 Aug) under the influence of a positive polarity CH HSS, with an additional enhancement possible on 10 Aug due to possible weak interaction with the periphery of a CME that left the Sun on 07 Aug. Geospace .24 hr Summary... The geomagnetic field was at G1-G2 (Minor-Moderate) geomagnetic storm levels. .Forecast... The geomagnetic field is expected to reached active to G1 (Minor) geomagnetic storm levels over 10 Aug. Active conditions are likely over 11-12 Aug as CH HSS influence persists.