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Solar activity report
Report of Solar-Geophysical Activity 2023 Jul 01 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 182 Issued at 2200Z on 01 Jul 2023IA. Analysis of Solar Active Regions and Activity from 30-2100Z to 01-2100Z
Solar activity has been at low levels for the past 24 hours.
The largest solar event of the period was a C4 event observed at
01/1256Z. There are currently 7 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 (02 Jul, 03 Jul, 04 Jul).
IIA. Geophysical Activity Summary 30-2100Z to 01-2100Z
The geomagnetic
field has been at quiet levels for the past 24 hours. Solar wind speed
reached a peak of 513 km/s at 01/0042Z. Total IMF reached 7 nT at
30/2217Z. The maximum southward component of Bz reached -3 nT at
01/0110Z. Electrons greater than 2 MeV at geosynchronous orbit reached
a peak level of 2570 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to unsettled levels on days one and three (02 Jul, 04
Jul) and quiet levels on day two (03 Jul). Protons have a slight chance
of crossing threshold on days one, two, and three (02 Jul, 03 Jul, 04
Jul).
III. Event Probabilities 02 Jul to 04 Jul
| Class M | 45% | 45% | 45% |
| Class X | 10% | 10% | 10% |
| Proton | 10% | 10% | 10% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 01 Jul 166 Predicted 02 Jul-04 Jul 165/160/160 90 Day Mean 01 Jul 155
V. Geomagnetic A Indices
Observed Afr/Ap 30 Jun 008/009 Estimated Afr/Ap 01 Jul 006/006 Predicted Afr/Ap 02 Jul-04 Jul 008/010-006/005-009/010
VI. Geomagnetic Activity Probabilities 02 Jul to 04 Jul
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 20% | 15% | 20% |
| Minor storm | 05% | 01% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 20% | 15% | 20% |
| Major-severe storm | 20% | 10% | 20% |
All times in UTC
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