Routine Space Environment Product (Daily)
Issued by NWS
Issued by NWS
183 FXXX12 KWNP 071231 DAYDIS :Product: Forecast Discussion :Issued: 2025 Apr 07 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 remained at low levels. Only low-level C-class activity was observed. Regions 4054 (S13W11, Dki/beta-gamma) and 4048 (S16W34, Fkc/beta-gamma) were the most complex on the visible and continued to evolve over the past 24 hours. Minor growth was also observed in Region 4055 (N08E13, Cro/beta). The remaining active regions were either stable or in decay. No Earth-directed CMEs were observed in available coronagraph imagery. .Forecast... Solar activity is likely to reach moderate levels (R1-R2/Minor-Moderate), with a slight chance for R3 (Strong) levels, over 07-09 Apr. Energetic Particles .24 hr Summary... The greater than 2 MeV electron flux reached high levels, seeing a peak value of 9,242 pfu at 06/1505 UTC. The greater than 10 MeV proton flux was slightly elevated, but still near background levels. .Forecast... The greater than 2 MeV electron flux is expected to be at normal to high levels on 07-09 Apr due to CH HSS influence. The greater than 10 MeV proton flux is expected to be at background levels on 07-09 Apr. Solar Wind .24 hr Summary... Solar wind parameters remained enhanced due to waning negative polarity CH HSS influence. Total magnetic field strength was between 5-7 nT with no significant periods of southward Bz observed. Solar wind speeds were in gradual decline, decreasing from peaks ~700 km/s to ~500 km/s by the end of the reporting period. Phi angle was predominantly oriented in the negative sector. .Forecast... Solar wind parameters are expected to see continued CH HSS influence over 07-08 Apr due to multiple negative polarity coronal holes in the Suns W hemisphere. Geospace .24 hr Summary... The geomagnetic field was at quiet to unsettled levels. .Forecast... The geomagnetic field is likely to produce mostly unsettled to active periods, with isolated G1 (Minor) storm conditions possible, on 07-08 Apr as negative polarity CH HSS influence continues. A decrease to mostly quiet conditions, with isolated unsettled levels, is likely over 09 Apr.