Routine Space Environment Product (Daily)
Issued by NWS
Issued by NWS
587 FXXX12 KWNP 090031 DAYDIS :Product: Forecast Discussion :Issued: 2025 Nov 09 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. Region 4274 (N24E02, Ekc/beta-gamma-delta) remained the largest and most active region, and was responsible for most of the C-flare activity this period. Regions 4276 (S17E39, Dao/beta-gamma) and 4277 (S06E38, Dai/beta) both exhibited slight growth during the period, and each produced a few C-flares. The remainder of the spot groups were relatively unchanged and inactive. No new Earth-directed CMEs were detected in available imagery. .Forecast... M-class flares (R1/R2-Minor/Moderate) are likely, with a chance for an isolated X-class flare (R3-Strong), on 09-11 Nov. 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 remained at background levels. .Forecast... The greater than 2 MeV electron flux is expected to reach high levels on 09-11 Nov. There is a slight chance for the greater than 10 MeV proton flux to reach S1 (Minor) storm levels over 09-11 Nov. Solar Wind .24 hr Summary... Solar wind parameters reflected remnant CME effects and negative polarity CH HSS influences. Total field strength gradually decreased from 11 nT to 5 nT. Bz was sustained southward, by as much as -9 nT, between 08/0000-0830 UTC. Solar wind speeds ranged between 575-700 km/s. Phi was predominately negative. .Forecast... Solar wind parameters are expected to remain enhanced through 11 Nov with negative polarity CH HSS influences (09-11 Nov) and the anticipated arrival of a CME from 07 Nov (10-11 Nov). Geospace .24 hr Summary... The geomagnetic field reached G1-G2 (Minor-Moderate) storm levels due to CME and negative polarity CH HSS influences. .Forecast... Periods of G1 (Minor) storming are likely on 09 Nov in response to negative polarity CH HSS influences. Periods of G1-G2 (Minor-Moderate) storming are likely on 10 Nov due to continued negative polarity CH HSS influences and the anticipated arrival of a CME that left the Sun on 07 Nov. Isolated active periods are likely on 11 Nov as negative polarity CH HSS influences and any remnant CME effects wane.