Viewing archive of Wednesday, 14 December 2022
Solar activity report
Report of Solar-Geophysical Activity 2022 Dec 14 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 348 Issued at 2200Z on 14 Dec 2022IA. Analysis of Solar Active Regions and Activity from 13-2100Z to 14-2100Z Solar activity has been at high levels for the past 24 hours.
The largest solar event of the period was a M6 event observed at
14/1442Z from Region 3165 (S20W49). There are currently 11 numbered
sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be moderate
with a slight chance for an X-class flare on day one (15 Dec) and likely
to be moderate with a slight chance for an X-class flare on day two (16
Dec) and expected to be low with a chance for M-class flares and a
slight chance for an X-class flare on day three (17 Dec).
IIA. Geophysical Activity Summary 13-2100Z to 14-2100Z
The geomagnetic
field has been at quiet levels for the past 24 hours. Solar wind speed
reached a peak of 410 km/s at 14/0336Z. Total IMF reached 7 nT at
14/2018Z. The maximum southward component of Bz reached -6 nT at
14/1936Z. Electrons greater than 2 MeV at geosynchronous orbit reached
a peak level of 400 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet levels on days one, two, and three (15 Dec, 16 Dec, 17
Dec). Protons have a slight chance of crossing threshold on days one,
two, and three (15 Dec, 16 Dec, 17 Dec).
III. Event Probabilities 15 Dec to 17 Dec
| Class M | 75% | 60% | 50% |
| Class X | 15% | 10% | 10% |
| Proton | 10% | 10% | 10% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 14 Dec 165 Predicted 15 Dec-17 Dec 164/160/158 90 Day Mean 14 Dec 132
V. Geomagnetic A Indices
Observed Afr/Ap 13 Dec 003/003 Estimated Afr/Ap 14 Dec 003/004 Predicted Afr/Ap 15 Dec-17 Dec 006/005-006/005-006/005
VI. Geomagnetic Activity Probabilities 15 Dec to 17 Dec
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 10% | 10% | 10% |
| Minor storm | 01% | 01% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 20% | 20% | 20% |
| Major-severe storm | 20% | 20% | 20% |
All times in UTC
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| Last M-flare | 2024/12/22 | M1.1 |
| Last geomagnetic storm | 2024/12/17 | Kp5+ (G1) |
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