Routine Space Environment Product (Daily)
Issued by NWS
Issued by NWS
833 FXXX12 KWNP 281231 DAYDIS :Product: Forecast Discussion :Issued: 2024 Jun 28 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 was at low levels. The largest flare was a C6.6 at 27/2347 UTC from Region 3730 (S18E02, Cso/beta). Slight decay was observed in Region 3730. Slight growth was observed in Region 3728 (S27E24, Dao/beta) and in the intermediate spots of Region 3729 (S03E49, Eai/beta). New Region 3731 (S17E56, Axx/alpha) was numbered. A CME was observed off the SW limb beginning at 27/1724 UTC in LASCO C2 imagery. Modelling efforts determined a possible glancing influence late on 01 Jul. .Forecast... Solar activity is expected to be low with a chance for M-class flares (R1-R2/Minor-Moderate) on 28-30 Jun. Energetic Particle .24 hr Summary... The greater than 2 MeV electron flux was at normal to moderate levels and 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 28-30 Jun. The greater than 10 MeV proton flux is expected to be at background levels on 28-30 Jun. Solar Wind .24 hr Summary... Solar wind parameters became further enhanced at 28/0912 UTC when an IP shock passage was observed at the ACE satellite, likely the flanking influence from the 24 Jun CME. Total field increased from 11 nT to 20 nT with a corresponding increase in solar wind speed from 323 km/s to 371 km/s. Total field further increased to 30 nT with solar wind speed reaching 423 km/s. The Bz component deflected further south to near -24 nT. Phi angle was mostly negative. .Forecast... Solar wind parameters are expected to continue to be enhanced through 29 Jun due as CME effects persist. A slow return to nominal levels is expected on 30 Jun. Geospace .24 hr Summary... The geomagnetic field was at quiet to G2 (Moderate) storming due to CME effects. .Forecast... Unsettled to G2 (Moderate) storming is expected on 28 Jun with G1 (Minor) storming likely to continue through early on 29 Jun due to persistent effects from the 24 Jun CME. Quiet to unsettled conditions are expected on 30 Jun as CME effects diminish.