Viewing archive of Friday, 1 April 2022
Solar activity report
Report of Solar-Geophysical Activity 2022 Apr 01 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 91 Issued at 2200Z on 01 Apr 2022IA. Analysis of Solar Active Regions and Activity from 31-2100Z to 01-2100Z Solar activity has been at low levels for the past 24 hours.
The largest solar event of the period was a C5 event observed at
01/0234Z from Region 2981 (S26E18). There are currently 5 numbered
sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be moderate
with a chance for X-class flares on days one and two (02 Apr, 03 Apr)
and expected to be low with a chance for M-class flares on day three (04
Apr).
IIA. Geophysical Activity Summary 31-2100Z to 01-2100Z
The geomagnetic
field has been at quiet to active levels for the past 24 hours. Solar
wind speed reached a peak of 548 km/s at 01/1436Z. Total IMF reached 22
nT at 31/2241Z. The maximum southward component of Bz reached -9 nT at
01/0934Z. Protons greater than 10 MeV at geosynchronous orbit reached a
peak level of 3 pfu at 31/2200Z. Electrons greater than 2 MeV at
geosynchronous orbit reached a peak level of 156 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to active levels on days one and two (02 Apr, 03 Apr) and
quiet to unsettled levels on day three (04 Apr). Protons have a chance
of crossing threshold on days one and two (02 Apr, 03 Apr) and have a
chance of crossing threshold on day three (04 Apr).
III. Event Probabilities 02 Apr to 04 Apr
| Class M | 75% | 75% | 35% |
| Class X | 30% | 30% | 05% |
| Proton | 50% | 50% | 25% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 01 Apr 147 Predicted 02 Apr-04 Apr 145/130/115 90 Day Mean 01 Apr 111
V. Geomagnetic A Indices
Observed Afr/Ap 31 Mar 018/026 Estimated Afr/Ap 01 Apr 016/022 Predicted Afr/Ap 02 Apr-04 Apr 011/012-011/015-007/010
VI. Geomagnetic Activity Probabilities 02 Apr to 04 Apr
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 25% | 45% | 30% |
| Minor storm | 10% | 20% | 10% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 10% | 15% |
| Minor storm | 30% | 35% | 25% |
| Major-severe storm | 40% | 55% | 40% |
All times in UTC
Latest news
Monday, 11 November 2024
Coronal hole faces Earth
Friday, 1 November 2024
X2.0 solar flare
Wednesday, 9 October 2024
X1.8 solar flare, severe geomagnetic storm watch
Latest forum messages
Filaments and prominences 481AR 13901 90Incoming & Unnumbered Active Regions 1245Sunspot Latitudes at or near Solar Maximum 76The Rotations of AR 13780 and AR 13902 1
More topicsSupport SpaceWeatherLive.com!
A lot of people come to SpaceWeatherLive to follow the Sun's activity or if there is aurora to be seen, but with more traffic comes higher server costs. Consider a donation if you enjoy SpaceWeatherLive so we can keep the website online!
Space weather facts
| Last X-flare | 2024/11/06 | X2.39 |
| Last M-flare | 2024/11/20 | M1.1 |
| Last geomagnetic storm | 2024/11/10 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| October 2024 | 166.4 +25 |
| November 2024 | 142.7 -23.8 |
| Last 30 days | 155.2 +4.4 |