Viewing archive of Thursday, 20 August 2020
Solar activity report
Report of Solar-Geophysical Activity 2020 Aug 20 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 233 Issued at 2200Z on 20 Aug 2020IA. Analysis of Solar Active Regions and Activity from 19-2100Z to 20-2100Z
IB. Solar Activity Forecast
IIA. Geophysical Activity Summary 19-2100Z to 20-2100Z
IIB. Geophysical Activity Forecast
III. Event Probabilities 21 Aug to 23 Aug
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 20 Aug 070 Predicted 21 Aug-23 Aug 070/070/069 90 Day Mean 20 Aug 070
V. Geomagnetic A Indices
Observed Afr/Ap 19 Aug 009/007 Estimated Afr/Ap 20 Aug 004/005 Predicted Afr/Ap 21 Aug-23 Aug 006/005-006/005-007/006
VI. Geomagnetic Activity Probabilities 21 Aug to 23 Aug
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 10% | 10% | 10% |
| Minor storm | 01% | 01% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 20% | 20% | 15% |
| Minor storm | 20% | 20% | 25% |
| Major-severe storm | 10% | 10% | 20% |
All times in UTC
Current data suggests there is a moderate possibility for aurora to appear at the following high latitude regions in the near future
Fairbanks, AKCurrent data suggests there is a slight possibility for aurora to appear at the following high latitude regions in the near future
Edmonton, AB, Gillam, MB, Whitehorse, YT, Yellowknife, NTAnchorage, AK, Juneau, AK, Utqiagvik, AK
Latest news
Coronal hole faces Earth
X2.0 solar flare from sunspot region 4001
Coronal hole faces Earth, Minor G1 geomagnetic storm watch
Latest forum messages
Support 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!
Latest alerts
Saturday, 15 March 2025
13:48 UTC - Hemispheric Power Index
The OVATION model predicts the Hemispheric Power Index to reach 52GW at 14:31 UTC
Friday, 14 March 2025
22:39 UTC - Solar flare
Moderate M1.16 flare
22:24 UTC - Radio Blackout
Minor R1 radio blackout in progress (≥M1 - current: M1.16)
10:55 UTC - Coronal hole
A southern hemisphere coronal hole is facing Earth. Enhanced solar wind could arrive in ~3 days
Space weather facts
| Last X-flare | 2025/02/23 | X2.0 |
| Last M-flare | 2025/03/14 | M1.1 |
| Last geomagnetic storm | 2025/03/14 | Kp6- (G2) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| February 2025 | 154.6 +17.6 |
| March 2025 | 125.9 -28.7 |
| Last 30 days | 139.6 -15 |