Viewing archive of Wednesday, 18 December 2019
Geophysical report
Solar and Geophysical Activity Summary 2019 Dec 18 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 352 Issued at 0245Z on 18 Dec 2019 This report is compiled from data received at SWO on 17 DecA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep None
B. Proton Events
None.
C. Geomagnetic Activity Summary
The geomagnetic field was at quiet
levels.
D. Stratwarm
Not available
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 071 SSN 000 Afr/Ap 002/002 X-ray BackgroundF. Comments
None.All times in UTC
Current data suggests there is a moderate possibility for aurora to appear at the following high latitude regions in the near future
VorkutaCurrent data suggests there is a slight possibility for aurora to appear at the following middle latitude regions in the near future
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Latest forum messages
Unspecified geomagnetic activity 2246Filaments and prominences 8CME is perceived to be slightly approaching 2May be of interest if you enjoy Solar Videography 3CME 20
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Latest alerts
18:00 UTC - Geomagnetic activity
Active geomagnetic conditions (Kp4) Threshold Reached: 17:46 UTC
15:30 UTC - Solar flare
Moderate M1.36 flare
15:15 UTC - Radio Blackout
Minor R1 radio blackout in progress (≥M1 - current: M1.36)
13:00 UTC - Solar flare
Moderate M2.36 flare
12:39 UTC - Radio Blackout
Minor R1 radio blackout in progress (≥M1 - current: M1.18)
Space weather facts
| Last X-flare | 2025/03/28 | X1.1 |
| Last M-flare | 2025/04/12 | M2.3 |
| 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 | 139.5 +5.3 |
| Last 30 days | 136.6 -3.5 |