This message is a product of the NOAA Space Weather Prediction Center(SWPC)
:Product: Forecast Discussion :Issued: 2023 Jun 03 0030 UTC # Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center ===================================================================== Solar Activity --------------------------------------------------------------------- .24 hr Summary... Solar activity reached moderate levels (R1-Minor) as newly numbered Region 3324 (N15W12, Bxo/beta) produced an impulsive M1.5 flare at 02/0241 UTC. The region decayed slightly to a Bxo group. Region 3315 (S17W88, Dao/beta) produced a C3.9 flare at 02/1411 UTC as the region departed the visible disk. A C3.3 flare was observed from new Region 3326 (N25E73, Hsx/alpha) at 02/1524 UTC. Region 3323 (S07E45, Esi/beta-gamma) produced a C6.3 flare at 02/2242 UTC. New Region 3325 (N11W02, Bxo/beta) was numbered this period. The remaining six regions were stable with no notable changes during the period. No Earth-directed CMEs were observed. --------------------------------------------------------------------- .Forecast... Solar activity is expected to be low with a chance for M-class flares and a slight chance for X-class flares on 03-05 Jun. ===================================================================== Energetic Particles --------------------------------------------------------------------- .24 hr Summary... The greater than 2 MeV electron flux was at normal to moderate levels and the greater than 10 MeV proton flux remained at background levels. --------------------------------------------------------------------- .Forecast... The greater than 2 MeV electron flux is expected to be at moderate to high levels 04-05 June. There is a slight chance the 10 MeV proton flux measured at GOES-16 could reach S1 (Minor) storm levels through 05 Jun. ===================================================================== Solar Wind --------------------------------------------------------------------- .24 hr Summary... The solar wind environment began the period mildly enhanced before returning to a more ambient state by about 02/0300 UTC. Total field strength peaked near 5 nT while the Bz component varied weakly between +2/-4 nT. Solar wind speeds slowly decayed through the period from about 445 km/s to near 360 km/s. The phi angle was oriented towards the Sun (negative). --------------------------------------------------------------------- .Forecast... Positive polarity CH HSSs are forecast to become geoeffective on 03 Jun, with effects lasting through 05 Jun. ===================================================================== Geospace --------------------------------------------------------------------- .24 hr Summary... The geomagnetic field was at quiet levels. --------------------------------------------------------------------- .Forecast... G1 (Minor) geomagnetic storms are likely on 03 Jun with the onset of a positive polarity CH HSS. Gradual improvements are expected on 04 Jun with unsettled to active levels followed by quiet to unsettled conditions on 05 Jun. ===================================================================== :NWRA: File downloaded/formatted: Sat Jun 3 01:41:19 UTC 2023Updated twice daily at approx. 0045 and 1245 UTC |
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