Viewing archive of Tuesday, 28 June 2022
Solar activity report
Report of Solar-Geophysical Activity 2022 Jun 28 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 179 Issued at 2200Z on 28 Jun 2022IA. Analysis of Solar Active Regions and Activity from 27-2100Z to 28-2100Z Solar activity has been at very low levels for the past 24
hours. There are currently 5 numbered sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be very low
with a chance for a C-class flares and a slight chance for an M-class
flare on days one, two, and three (29 Jun, 30 Jun, 01 Jul).
IIA. Geophysical Activity Summary 27-2100Z to 28-2100Z
The geomagnetic
field has been at quiet to unsettled levels for the past 24 hours. Solar
wind speed reached a peak of 553 km/s at 28/0100Z. Total IMF reached 6
nT at 28/0343Z. The maximum southward component of Bz reached -4 nT at
28/0447Z. Electrons greater than 2 MeV at geosynchronous orbit reached
a peak level of 4931 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to unsettled levels on days one, two, and three (29 Jun,
30 Jun, 01 Jul).
III. Event Probabilities 29 Jun to 01 Jul
| Class M | 10% | 10% | 10% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 28 Jun 096 Predicted 29 Jun-01 Jul 095/095/095 90 Day Mean 28 Jun 128
V. Geomagnetic A Indices
Observed Afr/Ap 27 Jun 015/012 Estimated Afr/Ap 28 Jun 010/010 Predicted Afr/Ap 29 Jun-01 Jul 010/010-006/008-010/010
VI. Geomagnetic Activity Probabilities 29 Jun to 01 Jul
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 25% | 25% | 25% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 20% | 20% | 20% |
| Minor storm | 30% | 30% | 30% |
| Major-severe storm | 30% | 30% | 30% |
All times in UTC
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| Last M-flare | 2024/12/22 | M1.0 |
| Last geomagnetic storm | 2024/12/17 | Kp5+ (G1) |
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