Routine Space Environment Product (Daily)
Issued by NWS
Issued by NWS
726 FXXX12 KWNP 041231 DAYDIS :Product: Forecast Discussion :Issued: 2026 May 04 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 reached moderate levels. Region 4424 (N17W85, Dao/beta) produced an M1.8 flare at 04/0133 UTC, which was the largest event of the period. Regions 4425 (N05W54, Cao/beta), 4428 (S23W57, Dao/beta) and 4431 (S16E17, Dso/beta) exhibited signs of decay while Region 4429 (S04W12, Dai/beta) gained additional, simple spots while undergoing consolidation. Regions 4434 (N12E56, Axx/alpha) and 4435 (N23E71, Hax/alpha) were numbered this period, but were otherwise unremarkable. The remaining numbered regions were relatively stable and quiet. The easterly CME first observed in LASCO C2 coronagraph imagery at approximately 04/0000 UTC was modeled and determined to be a miss well behind Earths orbit. No Earth-directed CMEs were observed in available coronagraph imagery. .Forecast... Solar activity is expected to be at low levels with a chance for M-flares (R1-R2/Minor-Moderate) on 04-06 May. Energetic Particle .24 hr Summary... The greater than 2 MeV electron flux was at normal to moderate levels. The greater than 10 MeV proton flux was at background levels. .Forecast... The greater than 2 MeV electron flux is expected to be at normal to moderate levels on 04-06 May. The greater than 10 MeV proton flux is expected to remain at background levels through 06 May. Solar Wind .24 hr Summary... Solar wind parameters continued to reflect weak negative polarity CH HSS influences. Total field was mostly under 5 nT until a small enhancement of 5-8 nT began just after 04/0405 UTC. The Bz component of the IMF was remained benign at +/-5 nT with no significant sustained deflections. Solar wind speeds were largely on the decline, beginning the period near 435-440 km/s and ending near 400 km/s. .Forecast... The solar wind environment is expected to remain weakly enhanced over 04-06 May as negative polarity CH HSS influences slowly diminish. Geospace .24 hr Summary... The geomagnetic field activity was at quiet to unsettled levels. .Forecast... The geomagnetic field is expected to continue at quiet to unsettled levels on 04-06 May as negative polarity CH HSS influences slowly wane.