Routine Space Environment Product (Daily)
Issued by NWS
Issued by NWS
140 FXXX12 KWNP 220031 DAYDIS :Product: Forecast Discussion :Issued: 2024 Sep 22 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 remained at low levels. Only Regions 3833 (N21W16, Dai/beta) and 3828 (S2E05, Cai/beta) exhibited growth during the past 24 hours. No Earth-directed CMEs were observed in available coronagraph imagery. .Forecast... There is a chance for solar activity to reach moderate levels (R1-R2, Minor-Moderate) on 22-24 Sep. Energetic Particles .24 hr Summary... The greater than 2 MeV electron flux reached high levels. The greater than 10 MeV proton flux was at background levels. .Forecast... The greater than 2 MeV electron flux is likely to reach high levels on 22-24 Sep. The greater than 10 MeV proton flux is expected to remain below warning threshold over 22-24 Sep. Solar Wind .24 hr Summary... Solar wind parameters were near background levels. Total magnetic field strength was between 2-7 nT. The Bz component briefly reached as far south as -6 nT. Solar wind speeds ranged from ~350-450 km/s. Phi angle transitioned from positive to negative after ~21/0800 UTC. .Forecast... Solar wind parameters are likely to increase above background levels over 22 Sep due to the anticipated influence of a CH HSS. Solar wind parameters will likely return to nominal levels by 23 Sep. Geospace .24 hr Summary... The geomagnetic field was quiet. .Forecast... The geomagnetic field is likely to be at quiet to unsettled conditions over 22 Sep due to anticipated CH HSS influence. Quiet conditions are expected on 23-24 Sep.