Viewing archive of Friday, 29 January 1999
Solar activity report
Any mentioned solar flare in this report has a scaling factor applied by the Space Weather Prediction Center (SWPC). Because of the SWPC scaling factor, solar flares are reported as 42% smaller than for the science quality data. The scaling factor has been removed from our archived solar flare data to reflect the true physical units.
Report of Solar-Geophysical Activity 1999 Jan 29 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 029 Issued at 2200Z on 29 JAN 1999IA. Analysis of Solar Active Regions and Activity from 28-2100Z to 29-2100Z
SOLAR ACTIVITY HAS BEEN VERY LOW.
IB. Solar Activity Forecast
SOLAR ACTIVITY IS EXPECTED TO REMAIN
VERY LOW.
IIA. Geophysical Activity Summary 28-2100Z to 29-2100Z
GEOMAGNETIC ACTIVITY HAS BEEN UNSETTLED.
IIB. Geophysical Activity Forecast
GEOMAGNETIC ACTIVITY IS
EXPECTED TO REMAIN QUIET TO UNSETTLED.
III. Event Probabilities 30 JAN to 01 FEB
| Class M | 10% | 10% | 10% |
| Class X | 01% | 01% | 01% |
| Proton | 05% | 05% | 05% |
| PCAF | GREEN | ||
IV. Penticton 10.7 cm Flux
Observed 29 JAN 118 Predicted 30 JAN-01 FEB 115/115/115 90 Day Mean 29 JAN 144
V. Geomagnetic A Indices
OBSERVED AFR/AP 28 JAN 006/007 ESTIMATED AFR/AP 29 JAN 007/008 PREDICTED AFR/AP 30 JAN-01 FEB 005/005-006/007-007/009
VI. Geomagnetic Activity Probabilities 30 JAN to 01 FEB
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 05% | 05% | 05% |
| Minor storm | 02% | 02% | 02% |
| Major-severe storm | 02% | 02% | 02% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 06% | 06% | 07% |
| Minor storm | 03% | 03% | 03% |
| Major-severe storm | 02% | 02% | 02% |
All times in UTC
Currently there's no noteworthy space weather
Latest news
Friday, 28 March 2025
X1.1 solar flare
Monday, 24 March 2025
Coronal hole faces Earth
Saturday, 22 March 2025
Strong G3 geomagnetic storm watch for 23 March
Latest forum messages
2025/04/12-13 Filament CMEs 2025/04/16 G2 Watch 63AR4062 15AR 4055 100Incoming & Unnumbered Active Regions 1714AR 4060 24
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!
Latest alerts
10:39 UTC - Solar flare
Moderate M1.52 flare from sunspot region 4055
10:24 UTC - Radio Blackout
Minor R1 radio blackout in progress (≥M1 - current: M1.52)
Monday, 14 April 2025
23:15 UTC - Geomagnetic activity
Active geomagnetic conditions (Kp4) Threshold Reached: 23:01 UTC
07:09 UTC - Solar flare
Moderate M4.28 flare from sunspot region 4055
06:48 UTC - Radio Blackout
Minor R1 radio blackout in progress (≥M1 - current: M1.53)
Space weather facts
| Last X-flare | 2025/03/28 | X1.1 |
| Last M-flare | 2025/04/14 | M4.2 |
| Last geomagnetic storm | 2025/04/06 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| March 2025 | 134.2 -20.4 |
| April 2025 | 128.8 -5.4 |
| Last 30 days | 129.1 -15.1 |