Viewing archive of Saturday, 16 April 2016
Geophysical report
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 107 Issued at 0245Z on 16 Apr 2016 This report is compiled from data received at SWO on 15 AprA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0007 0007 0007 170 0013 0013 0014 200 0042 0042 0042 120 0043 0043 0043 110 0105 0105 0106 310 0113 0113 0113 100 0116 0116 0116 140 0149 0149 0149 100 0321 0321 0321 120 0352 0352 0353 120 0453 0453 0453 110 0643 0643 0643 230 0646 0646 0646 280
B. Proton Events
C. Geomagnetic Activity Summary
D. Stratwarm
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 112 SSN 069 Afr/Ap 009/006 X-ray Background B2.9 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 1.5e+06 GT 10 MeV 1.3e+04 p/(cm2-ster-day) (GOES-13 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 6.70e+07 e/(cm2-ster-day) (GOES-13 satellite synchronous orbit W75 degrees) 3 Hour K-indices Boulder 3 2 1 1 2 3 1 2 Planetary 4 2 0 0 1 1 1 2
F. Comments
None
All times in UTC
Current data suggests there is a slight possibility for aurora to appear at the following high latitude regions in the near future
Gillam, MB, Whitehorse, YT, Yellowknife, NTFairbanks, AK
Latest news
Coronal hole faces Earth
Strong G3 geomagnetic storm watch for 23 March
Coronal hole faces Earth
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Latest alerts
Monday, 24 March 2025
Coronal hole faces Earth
The anticipated strong G3 geomagnetic storm watch never materialized as the coronal mass ejection that was supposed to arrive early yesterday didn't arrive until today just past midnight UTC. The impact was very lackluster with the Bt (total strength of the IMF) increasing to a moderate 15nT at best and the solar wind speed reaching just 420km/s. A far cry from the anticipated 700 to 800km/s. That once again goes to show how hard it is to forecast space weather events and any resulting geomagnetic conditions. We remain under the influence of the CME and high latitude sky watchers should remain alert for some nice aurora displays but middle latitude sky watchers will probably have to wait for the next opportunity.
13:55 UTC - Coronal hole
A transequatorial coronal hole is facing Earth. Enhanced solar wind could arrive in ~3 days
02:45 UTC - Geomagnetic activity
Active geomagnetic conditions (Kp4) Threshold Reached: 02:33 UTC
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| Last M-flare | 2025/03/21 | M1.2 |
| Last geomagnetic storm | 2025/03/22 | Kp6- (G2) |
| Spotless days | |
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