Routine Space Environment Product (Daily)
Issued by NWS
Issued by NWS
532 FXXX12 KWNP 230031 DAYDIS :Product: Forecast Discussion :Issued: 2025 Nov 23 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 continued at low levels. Region 4291 (S14E65, Dao/beta) produced an impulsive C4.8 flare at 22/1146 UTC and a C6.6 flare at 22/1900 UTC, the two strongest flares of the period. The region is now the most magnetically complex region on the visible disk. The other region on the disk to contribute flares was Region 4290 (S10E65, Cao/beta) adding several low-level C-class flares as well. The remaining numbered active regions were mostly unchanged and stagnant. From approximately 22/1301-1341 UTC, the northern half of an ~12 degree long filament, centered near S22E06, was observed erupting in GONG H-alpha and GOES SUVI imagery. Initial indications point to most of the material being reabsorbed, with no discernible CME in coronagraph imagery. No Earth-directed CMEs were noted in available satellite imagery. .Forecast... Solar activity is expected to remain at low levels on 23-25 Nov, with a slight chance for moderate levels (R1-R2/Minor-Moderate) mainly due to the flare potential of Region 4291. Energetic Particle .24 hr Summary... The greater than 2 MeV electron flux was at moderate levels. The greater than 10 MeV proton flux was at background levels. .Forecast... The greater than 2 MeV electron flux is expected to remain at moderate levels, and the greater than 10 MeV proton flux in expected to remain at background levels through 25 Nov. Solar Wind .24 hr Summary... Solar wind parameters reflected the weak, lingering influence of a negative polarity coronal hole. Total magnetic field strength was between 4-9 nT, the Bz component ranged between +/-5 nT, and solar wind speeds varied between 390-450 km/s. Phi was in a mostly negative orientation. .Forecast... Mostly nominal conditions are likely for 23-25 Nov. Geospace .24 hr Summary... The geomagnetic activity was quiet to unsettled. .Forecast... The geomagnetic field is expected to be mostly quiet on 23-25 Nov as nominal solar wind conditions are expected to prevail.