Viewing archive of Saturday, 16 June 2018
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 2018 Jun 16 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 167 Issued at 2200Z on 16 Jun 2018IA. Analysis of Solar Active Regions and Activity from 15-2100Z to 16-2100Z Solar activity has been at very low levels for the past 24
hours. There are currently 1 numbered sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be very low
on days one, two, and three (17 Jun, 18 Jun, 19 Jun).
IIA. Geophysical Activity Summary 15-2100Z to 16-2100Z
The geomagnetic
field has been at quiet levels for the past 24 hours. Solar wind speed
reached a peak of 312 km/s at 16/1607Z. Electrons greater than 2 MeV at
geosynchronous orbit reached a peak level of 508 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet levels on day one (17 Jun) and quiet to unsettled levels
on days two and three (18 Jun, 19 Jun).
III. Event Probabilities 17 Jun to 19 Jun
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 16 Jun 071 Predicted 17 Jun-19 Jun 072/072/072 90 Day Mean 16 Jun 070
V. Geomagnetic A Indices
Observed Afr/Ap 15 Jun 006/004 Estimated Afr/Ap 16 Jun 004/004 Predicted Afr/Ap 17 Jun-19 Jun 005/005-008/008-008/008
VI. Geomagnetic Activity Probabilities 17 Jun to 19 Jun
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 10% | 20% | 20% |
| Minor storm | 01% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 20% | 20% |
| Minor storm | 20% | 30% | 30% |
| Major-severe storm | 10% | 25% | 25% |
All times in UTC
Latest news
Thursday, 21 November 2024
Major far side eruption, S1 radiation storm
Monday, 11 November 2024
Coronal hole faces Earth
Friday, 1 November 2024
X2.0 solar flare
Latest forum messages
Unspecified geomagnetic activity 1664Comment limitation 9AR 3906 8>500 meV 23Filaments and prominences 561
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 | 2024/11/23 | 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 | 144.7 -21.7 |
| Last 30 days | 158.6 +10.8 |