Routine Space Environment Product (Daily)
Issued by NWS
Issued by NWS
006 FXXX12 KWNP 231231 DAYDIS :Product: Forecast Discussion :Issued: 2025 Feb 23 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 4001 (N24W83, Cao/beta) produced the strongest flare of the period; an M4.9 flare (R1-Minor) at 23/0213 UTC. Region 3998 (S14W21, Eki/beta-gamma) produced an impulsive M1.0 flare at 23/0956 UTC and grew slightly, while Region 4000 (N17W13, Dai/beta-gamma-delta) began to show signs of decay. The remaining regions were stable. No Earth-directed CMEs were observed in available coronagraph imagery. .Forecast... There is a chance for R1-R2 (Minor-Moderate) events, and a slight chance for R3 or greater events, over 23-25 Feb. 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 near-background levels. .Forecast... The greater than 2 MeV electron flux is expected to continue at normal to moderate levels through 25 Feb. There is a slight chance for the greater than 10 MeV proton flux to reach S1 (Minor) storm levels over 23-25 Feb. Solar Wind .24 hr Summary... Background solar wind conditions prevailed with a weakly enhanced IMF. Total field strength reached 7 nT and the Bz component was sustained southward, by as much as -6 nT, for brief intervals. Solar wind speeds were steady between 300-350 km/s. .Forecast... Weakly enhanced solar wind conditions are likely over 23-25 Feb. Negative polarity CH HSS influences are likely on 24-25 Feb, with possible glancing influences of a CME that left the Sun late on 19 Feb. Geospace .24 hr Summary... The geomagnetic field was at quiet to unsettled levels. .Forecast... The geomagnetic field is expected to be at quiet to unsettled levels over 23-25 Feb. Negative polarity CH HSS influences are likely on 24-25 Feb, with possible glancing influences of a CME that left the Sun late on 19 Feb.