Routine Space Environment Product (Daily)
Issued by NWS
Issued by NWS
512 FXXX12 KWNP 070031 DAYDIS :Product: Forecast Discussion :Issued: 2025 Jul 07 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 at low levels with weak C-class flare activity observed. Regions 4127 (S19W59, Dai/beta) and 4134 (S23W15, Dao/beta) indicated intermediate spot growth. Slight growth was observed in the leader portion of Region 4130 (S11W11, Dai/beta). The remaining active regions on the visible disk were either stable or in decay. No Earth-directed CMEs were observed in available coronagraph imagery. .Forecast... Solar activity is expected to be at low levels over 07-09 Jul. 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 continue at normal to moderate levels over 07-09 Jul. The greater than 10 MeV proton flux is expected to persist at background levels through 09 Jul. Solar Wind .24 hr Summary... Solar wind parameters reflected continued negative polarity coronal hole influence during the period. The total magnetic field strength reached 13 nT and the Bz component reached as far south as -10 nT. Solar wind speeds began the period at about 475 km/s, but slowly decreased to end-of-period speeds near 430 km/s. The phi angle was predominately negative. .Forecast... Solar wind parameters are expected to remain mildly elevated over 07-08 Jul due to negative polarity coronal hole influence. More nominal parameters are expected on 09 Jul. Geospace .24 hr Summary... The geomagnetic field reached G1 (Minor) geomagnetic storm levels early in the period, and again to end the period, in response to negative polarity coronal hole influence. .Forecast... The geomagnetic field is expected to range from quiet to isolated periods of G1 (Minor) geomagnetic storm levels early on 07 July. By late 07 July and into 08 July, conditions are expected to fall to quiet to unsettled levels due to sustained, yet weakening, negative polarity CH HSS influence. Mostly quiet levels are expected on 09 Jul.