Routine Space Environment Product (Daily)
Issued by NWS
Issued by NWS
981 FXXX12 KWNP 020031 DAYDIS :Product: Forecast Discussion :Issued: 2026 May 02 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 low. Region 4420 (N16W83, Cao/beta) produced an impulsive C7.4/Sf flare at 01/1529 UTC, with associated Type-II radio sweep (est. 593 km/s), as it approached the west limb. Minor growth was observed in Regions 4424 (N17W49, Eai/beta), 4428 (S23W27, Dai/beta), 4429 (S04E20, Dso/beta), and newly-numbered 4431 (S16E53, Dao/beta). New Regions 4430 (N16W31, Dao/beta) and 4432 (N11E68, Bxo/beta) were also numbered, but were otherwise unremarkable. No Earth-directed CMEs were detected 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 02-04 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 02-04 May. The greater than 10 MeV proton flux is expected to remain at background levels through 04 May. Solar Wind .24 hr Summary... Solar wind parameters were consistent with ongoing negative polarity CH HSS influences. Total field strength reached a peak of 9 nT, and the Bz component reached as far south as -8 nT. Solar wind speeds slowly decreased from a peak of around 525 km/s to an average of around 450 km/s by the end of the period. .Forecast... The solar wind environment is expected to remain enhanced under negative polarity CH HSS influences over 02-04 May. Geospace .24 hr Summary... The geomagnetic field ranged from quiet to active levels this period in response to negative polarity CH HSS influences. .Forecast... The geomagnetic field is expected to be quiet and unsettled on 02 and 04 May, with active conditions likely on 03 May, due to continued negative polarity CH HSS influences.