Routine Space Environment Product (Daily)
Issued by NWS
Issued by NWS
967 FXXX12 KWNP 031231 DAYDIS :Product: Forecast Discussion :Issued: 2025 Aug 03 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 was low. Region 4168 (N05E21, Dai/beta-gamma) produced a C4.3 flare at 03/0245 UTC, the largest of the period. The region continued to grow in area and number of spots. Region 4167 (N11W45, Dki/beta-gamma) remained the largest and most complex on the disk. The other spotted active regions on the visible disk were either stable or in gradual decay. No Earth-directed CMEs were observed in available coronagraph imagery. .Forecast... Solar activity is expected to be low with a chance for M-class flares (R1-R2/Minor-Moderate) over 03-05 Aug. Energetic Particle .24 hr Summary... The greater than 2 MeV electron flux remained at moderate levels. The greater than 10 MeV proton flux was steady at background levels throughout the period. .Forecast... The greater than 2 MeV electron flux is expected to be at moderate levels on 03-05 Aug. The greater than 10 MeV proton flux is expected to continue at background levels over 03-05 Aug. Solar Wind .24 hr Summary... The solar wind environment was at near-background levels. Total magnetic field strength was between 5-8 nT. No significant periods of southward Bz were observed. Solar wind speed declined from ~470 km/s to ~430 km/s by the end of the reporting period. Phi angle was predominantly oriented in the negative solar sector. .Forecast... Solar wind parameters are expected to continue near background levels over 03-04 Aug. Minor disturbances are likely on 05 Aug due to the anticipated influence of another, small, negative polarity CH HSS. Geospace .24 hr Summary... The geomagnetic field was at quiet to unsettled levels. .Forecast... Mostly quiet levels are expected over on 03-04 Aug under a near-background solar wind regime. Unsettled levels are again likely, with a chance for isolated active periods, on 05 Aug, due to the anticipated influence from another negative polarity CH HSS.