Routine Space Environment Product (Daily)
Issued by NWS
Issued by NWS
882 FXXX12 KWNP 101231 DAYDIS :Product: Forecast Discussion :Issued: 2026 Mar 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 was low. Low-level C-class flares were observed from Regions 4381 (N08W56, Cso/beta), 4387 (N09E46, Dro/beta) and new Region 4389 (N13E67, Ero/beta). The largest event of the period was a C7.8/Sf observed at 09/2038 UTC from Region 4387. Region 4381 simplified with some dissipation of its intermediate spots, while Region 4384 (N09W34, Cso/beta) showed a decline in its trailing spot. Region 4385 (S09, L=161) decayed to plage. Region 4387 remained relatively stable throughout the period. Region 4388 (S15W25, Cri/beta) was numbered this period and showed some evolution with new flux emergence and reconfiguration of the group, though its overall extent remained largely unchanged. No Earth-directed CMEs were observed in available coronagraph imagery. .Forecast... Solar activity is expected to be at low levels, with a slight chance for M-class (R1-R2/Minor-Moderate) flares through 12 Mar. Energetic Particle .24 hr Summary... The greater than 2 MeV electron flux reached high levels with a peak flux of 1,320 pfu observed at 09/1610 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 on 10-12 Mar. The greater than 10 MeV proton flux is expected to continue at background levels through 12 Mar. Solar Wind .24 hr Summary... Solar wind parameters indicated a waning, negative-polarity, CH HSS influence. Solar wind speed decreased from approximately 480 km/s to near 400 km/s. Total field ranged from 1-5 nT while the Bz component was between +/-5 nT. Phi angle was predominantly negative. .Forecast... Mildly enhanced solar wind parameters are expected to continue through 10 Mar as HSS conditions continue to wane, alongside possible transient influences from the 06 Mar CME. A return to nominal levels is expected on 11-12 Mar. Geospace .24 hr Summary... The geomagnetic field was quiet to unsettled. .Forecast... The geomagnetic field is expected to be quiet to unsettled on 10 Mar as HSS conditions continue to diminish with enhancements possible due to the anticipated arrival of the 06 Mar CME. Mostly quiet conditions are expected on 11-12 Mar.