Viewing archive of Monday, 25 December 2023
Geophysical report
Solar and Geophysical Activity Summary 2023 Dec 25 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 359 Issued at 0245Z on 25 Dec 2023 This report is compiled from data received at SWO on 24 DecA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0124 0124 0124 170 0643 0643 0644 110 0806 0816 0821 3529 S20W25 C3.7 Sf 170 0821 0821 0821 120 0827 0827 0827 160 0856 0907 0911 3530 C2.1 110 1005 1005 1005 660 1109 1118 1124 3529 S20W27 M2.9 1n 2300 1637 1649 1656 3529 S17W33 M2.6 1f 1921 1951 2016 M1.1 2328 2340 2347 3529 S21W33 C5.0 Sf 190
B. Proton Events
C. Geomagnetic Activity Summary
D. Stratwarm
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 183 SSN 113 Afr/Ap 007/007 X-ray Background C1.2 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 2.2e+04 GT 10 MeV 1.8e+04 p/(cm2-ster-day) (GOES-16 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 3.20e+06 e/(cm2-ster-day) (GOES-16 satellite synchronous orbit W75 degrees) 3 Hour K-indices Boulder 2 2 3 3 2 2 2 1 Planetary 2 3 2 3 2 1 0 1
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, NTAnchorage, AK, Fairbanks, AK, Juneau, AK, Utqiagvik, 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
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 |