Viewing archive of Friday, 2 June 2023
Solar activity report
Report of Solar-Geophysical Activity 2023 Jun 02 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 153 Issued at 2200Z on 02 Jun 2023IA. Analysis of Solar Active Regions and Activity from 01-2100Z to 02-2100Z Solar activity has been at moderate levels for the past 24
hours. The largest solar event of the period was a M1 event observed at
02/0241Z from Region 3324 (N15W12). There are currently 10 numbered
sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be low with
a chance for M-class flares and a slight chance for an X-class flare on
days one, two, and three (03 Jun, 04 Jun, 05 Jun).
IIA. Geophysical Activity Summary 01-2100Z to 02-2100Z
The geomagnetic
field has been at quiet levels for the past 24 hours. Solar wind speed
reached a peak of 458 km/s at 01/2118Z. Total IMF reached 5 nT at
01/2351Z. The maximum southward component of Bz reached -3 nT at
02/0029Z. Electrons greater than 2 MeV at geosynchronous orbit reached
a peak level of 226 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at unsettled to minor storm levels on day one (03 Jun), quiet to
active levels on day two (04 Jun) and quiet to unsettled levels on day
three (05 Jun). Protons have a slight chance of crossing threshold on
days one, two, and three (03 Jun, 04 Jun, 05 Jun).
III. Event Probabilities 03 Jun to 05 Jun
| Class M | 45% | 45% | 45% |
| Class X | 15% | 15% | 15% |
| Proton | 15% | 15% | 15% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 02 Jun 162 Predicted 03 Jun-05 Jun 165/165/160 90 Day Mean 02 Jun 152
V. Geomagnetic A Indices
Observed Afr/Ap 01 Jun 014/013 Estimated Afr/Ap 02 Jun 010/015 Predicted Afr/Ap 03 Jun-05 Jun 015/020-011/015-011/012
VI. Geomagnetic Activity Probabilities 03 Jun to 05 Jun
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 35% | 30% | 15% |
| Minor storm | 15% | 15% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 20% | 20% | 15% |
| Major-severe storm | 20% | 20% | 10% |
All times in UTC
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