Routine Space Environment Product (Daily)
Issued by NWS
Issued by NWS
375 FXXX12 KWNP 010031 DAYDIS :Product: Forecast Discussion :Issued: 2026 Sep 01 0030 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 at low levels. X-ray activity was limited to low-level C-class events with a few appearing to have originated from a returning region just beyond the northeast limb. Region 4520 (S12W07, Dai/beta) gained additional spots and penumbra and produced a C2.6/SF flare at 31/1516 UTC, which was the largest event of the period. Regions 4521 (N09E67, Hsx/alpha), 4522 (N13W15, Bxo/beta) and 4523 (N10E77, Hax/alpha) were all numbered in the past 24 hours, but were relatively quiet. No Earth-directed CMEs were observed in available coronagraph imagery. .Forecast... Solar activity is expected to remain at low levels with a slight chance for M-class (R1-R2/Minor-Moderate) activity through 03 Sep. Energetic Particle .24 hr Summary... The greater than 2 MeV electron flux reached high levels with a peak flux of 2,010 pfu at 31/1445 UTC. The greater than 10 MeV proton flux was at background levels. .Forecast... The greater than 2 MeV electron flux is expected to reach high levels through 03 Sep. The greater than 10 MeV proton flux is expected to continue at background levels through 02 Sep. Solar Wind .24 hr Summary... Solar wind parameters remained mildly enhanced as positive polarity CH HSS influences waned. Total magnetic field strength reached a peak of 5 nT, while the Bz component was +/- 5 nT. Solar wind speeds gradually decreased to ~4 km/s. The phi angle was predominately positive. .Forecast... Solar wind conditions are expected to return to ambient levels over the course of 01 Sep and remain at ambient levels through 03 Sep. Geospace .24 hr Summary... The geomagnetic field reached unsettled levels due to waning positive polarity CH HSS influences. .Forecast... Unsettled conditions are possible early on 01 Sep as positive polarity CH HSS influences wane. Otherwise, mostly quiet levels are expected to prevail through 03 Sep.