Viewing archive of Thursday, 17 November 2022
Solar activity report
Report of Solar-Geophysical Activity 2022 Nov 17 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 321 Issued at 2200Z on 17 Nov 2022IA. Analysis of Solar Active Regions and Activity from 16-2100Z to 17-2100Z Solar activity has been at low levels for the past 24 hours.
The largest solar event of the period was a C6 event observed at
17/0928Z from Region 3140 (N23W0*). There are currently 5 numbered
sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be very low
with a chance for a C-class flares and a slight chance for an M-class
flare on day one (18 Nov) and expected to be very low with a chance for
a C-class flares on days two and three (19 Nov, 20 Nov).
IIA. Geophysical Activity Summary 16-2100Z to 17-2100Z
The geomagnetic
field has been at quiet levels for the past 24 hours. Solar wind speed
reached a peak of 406 km/s at 17/1454Z. Total IMF reached 7 nT at
17/1236Z. The maximum southward component of Bz reached -2 nT at
16/2335Z. Electrons greater than 2 MeV at geosynchronous orbit reached
a peak level of 261 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to unsettled levels on day one (18 Nov), quiet to minor
storm levels on day two (19 Nov) and unsettled to minor storm levels on
day three (20 Nov).
III. Event Probabilities 18 Nov to 20 Nov
| Class M | 15% | 05% | 05% |
| Class X | 01% | 01% | 01% |
| Proton | 05% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 17 Nov 119 Predicted 18 Nov-20 Nov 118/118/118 90 Day Mean 17 Nov 133
V. Geomagnetic A Indices
Observed Afr/Ap 16 Nov 002/002 Estimated Afr/Ap 17 Nov 003/003 Predicted Afr/Ap 18 Nov-20 Nov 009/010-014/018-020/028
VI. Geomagnetic Activity Probabilities 18 Nov to 20 Nov
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 25% | 35% | 40% |
| Minor storm | 10% | 15% | 25% |
| Major-severe storm | 01% | 01% | 05% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 10% |
| Minor storm | 30% | 30% | 25% |
| Major-severe storm | 40% | 50% | 60% |
All times in UTC
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