Routine Space Environment Product (Daily)
Issued by NWS
Issued by NWS
702 FXXX12 KWNP 241231 DAYDIS :Product: Forecast Discussion :Issued: 2025 Aug 24 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 due to M-class flares (R1-Minor). An M1.9 flare at 23/2006 UTC and an M1.3 flare at 24/0836 UTC, both events originating from beyond the east limb, were the strongest events of the period. Region 4191 (N11E29, Ehi/beta-gamma) produced the largest flare on the visible disk, a C9.1 at 23/1922 UTC, with increasing size and spot count. The remaining regions were stable. No Earth-directed CMEs were detected in coronagraph imagery. .Forecast... Solar activity is expected to be low, with a chance for R1-R2 (Minor-Moderate) events through 26 Aug. Energetic Particle .24 hr Summary... The greater than 2 MeV electron flux was at normal to moderate levels. The greater than 10 MeV proton flux remained slightly enhanced following flare activity from beyond the east limb, reaching a peak flux of 3 pfu. .Forecast... The greater than 2 MeV electron flux is likely to reach high levels on 24-26 Aug. There is a slight chance for the greater than 10 MeV proton flux to reach S1 (Minor) storm levels on 24 Aug. Solar Wind .24 hr Summary... Solar wind conditions were nominal. Total magnetic field strength ranged from 2-5 nT, with the Bz component fluctuating between +5/-3 nT. Solar wind speed gradually decreased from a peak near 480 km/s to around 375 km/s. The phi angle was predominately negative. .Forecast... Nominal solar wind conditions are expected to continue through 24 Aug. Enhanced conditions are likely on 25-26 Aug due to the influences of a negative polarity CH HSS. Geospace .24 hr Summary... The geomagnetic field was quiet. .Forecast... The geomagnetic field is expected to remain mostly quiet on 24 Aug. Active periods are likely on 25-26 Aug due to the influence of a negative polarity CH HSS.