Viewing archive of Thursday, 16 February 2023
Geophysical report
Solar and Geophysical Activity Summary 2023 Feb 16 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 047 Issued at 0245Z on 16 Feb 2023 This report is compiled from data received at SWO on 15 FebA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0251 0259 0304 3226 N11E19 C7.3 Sf 100 0433 0447 0507 3213 M1.1 0516 0523 0530 3213 M2.0 0642 0705 0719 3213 M1.3 0842 0850 0856 C3.2 140 0936 0936 0936 150 1003 1003 1003 100 1049 1049 1051 170 1106 1106 1106 170 1117 1118 1118 610 2105 2114 2118 3213 M1.0 600 2118 2122 II 2142 2142 2143 130 2218 2218 2218 130
B. Proton Events
C. Geomagnetic Activity Summary
D. Stratwarm
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 174 SSN 140 Afr/Ap 023/024 X-ray Background C1.9 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 1.2e+06 GT 10 MeV 2.4e+04 p/(cm2-ster-day) (GOES-16 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 1.30e+06 e/(cm2-ster-day) (GOES-16 satellite synchronous orbit W75 degrees) 3 Hour K-indices Boulder ? ? ? ? ? ? ? ? Planetary 3 2 5 5 3 4 4 4
F. Comments
Boulder K indices were not available.
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
Edmonton, AB, Gillam, MB, Whitehorse, YT, Yellowknife, NTFairbanks, AK, Juneau, AK
Latest news
Coronal hole faces Earth
Strong G3 geomagnetic storm watch for 23 March
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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
Space weather facts
| Last X-flare | 2025/02/23 | X2.0 |
| Last M-flare | 2025/03/21 | M1.2 |
| Last geomagnetic storm | 2025/03/22 | Kp6- (G2) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| February 2025 | 154.6 +17.6 |
| March 2025 | 138.3 -16.4 |
| Last 30 days | 136.1 -18.1 |