Viewing archive of Monday, 23 May 2022
Solar activity report
Report of Solar-Geophysical Activity 2022 May 23 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 143 Issued at 2200Z on 23 May 2022IA. Analysis of Solar Active Regions and Activity from 22-2100Z to 23-2100Z 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
23/1105Z from Region 3017 (N13W28). There are currently 8 numbered
sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be low with
a chance for M-class flares on days one, two, and three (24 May, 25 May,
26 May).
IIA. Geophysical Activity Summary 22-2100Z to 23-2100Z
The geomagnetic
field has been at quiet to unsettled levels for the past 24 hours. Solar
wind speed reached a peak of 551 km/s at 22/2318Z. Total IMF reached 5
nT at 23/0645Z. The maximum southward component of Bz reached -4 nT at
23/0520Z. Electrons greater than 2 MeV at geosynchronous orbit reached
a peak level of 1051 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet levels on days one and two (24 May, 25 May) and quiet to
unsettled levels on day three (26 May). Protons have a slight chance of
crossing threshold on days one, two, and three (24 May, 25 May, 26 May).
III. Event Probabilities 24 May to 26 May
| Class M | 40% | 35% | 35% |
| Class X | 05% | 05% | 05% |
| Proton | 10% | 10% | 10% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 23 May 158 Predicted 24 May-26 May 158/156/154 90 Day Mean 23 May 126
V. Geomagnetic A Indices
Observed Afr/Ap 22 May 011/013 Estimated Afr/Ap 23 May 006/006 Predicted Afr/Ap 24 May-26 May 005/005-006/005-007/008
VI. Geomagnetic Activity Probabilities 24 May to 26 May
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 10% | 10% | 20% |
| Minor storm | 01% | 01% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 20% |
| Minor storm | 20% | 20% | 30% |
| Major-severe storm | 15% | 15% | 25% |
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
sun goes blank 71Space Weather Memes 566Incoming & Unnumbered Active Regions 1209AR13889 143Northern Lights long term prediction 3
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 | 2024/11/13 | M1.7 |
| 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 | 170.8 +4.3 |
| Last 30 days | 165.1 +20.3 |