Viewing archive of Friday, 20 May 2022
Solar activity report
Report of Solar-Geophysical Activity 2022 May 20 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 140 Issued at 2200Z on 20 May 2022IA. Analysis of Solar Active Regions and Activity from 19-2100Z to 20-2100Z Solar activity has been at moderate levels for the past 24
hours. The largest solar event of the period was a M3 event observed at
20/0745Z from Region 3014 (N24W09). 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 on days one, two, and three (21 May, 22 May,
23 May).
IIA. Geophysical Activity Summary 19-2100Z to 20-2100Z
The geomagnetic
field has been at quiet to unsettled levels for the past 24 hours. Solar
wind speed reached a peak of 608 km/s at 20/1541Z. Total IMF reached 7
nT at 20/1845Z. The maximum southward component of Bz reached -6 nT at
20/1540Z. Electrons greater than 2 MeV at geosynchronous orbit reached
a peak level of 225 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to unsettled levels on days one and two (21 May, 22 May)
and quiet levels on day three (23 May). Protons greater than 10 Mev have
a slight chance of crossing threshold on days two and three (22 May, 23
May).
III. Event Probabilities 21 May to 23 May
| Class M | 40% | 40% | 40% |
| Class X | 05% | 05% | 05% |
| Proton | 05% | 10% | 10% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 20 May 166 Predicted 21 May-23 May 160/162/165 90 Day Mean 20 May 124
V. Geomagnetic A Indices
Observed Afr/Ap 19 May 010/009 Estimated Afr/Ap 20 May 011/012 Predicted Afr/Ap 21 May-23 May 007/010-007/010-005/005
VI. Geomagnetic Activity Probabilities 21 May to 23 May
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 25% | 25% | 10% |
| Minor storm | 05% | 05% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 30% | 30% | 20% |
| Major-severe storm | 30% | 30% | 20% |
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
AR13893 1AR13889 144Cactus Discrepancies? Latest SOHO/LASCO images show a different story 12Space Weather Memes 572Ask your obscure/"stupid" space weather questions. 57
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 | 2024/11/15 | 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 | 161 -5.4 |
| Last 30 days | 161.7 +14.5 |