Viewing archive of Friday, 18 November 2022
Solar activity report
Report of Solar-Geophysical Activity 2022 Nov 18 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 322 Issued at 2200Z on 18 Nov 2022IA. Analysis of Solar Active Regions and Activity from 17-2100Z to 18-2100Z Solar activity has been at low levels for the past 24 hours.
The largest solar event of the period was a C5 event observed at
18/0914Z. There are currently 4 numbered sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is likely to be low with a
slight chance for an M-class flare on days one, two, and three (19 Nov,
20 Nov, 21 Nov).
IIA. Geophysical Activity Summary 17-2100Z to 18-2100Z
The geomagnetic
field has been at quiet levels for the past 24 hours. Solar wind speed
reached a peak of 474 km/s at 18/0030Z. Total IMF reached 11 nT at
18/1833Z. The maximum southward component of Bz reached -9 nT at
18/1719Z. Electrons greater than 2 MeV at geosynchronous orbit reached
a peak level of 508 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at unsettled to minor storm levels on days one and two (19 Nov, 20
Nov) and quiet to active levels on day three (21 Nov).
III. Event Probabilities 19 Nov to 21 Nov
| Class M | 10% | 10% | 10% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 18 Nov 116 Predicted 19 Nov-21 Nov 115/115/115 90 Day Mean 18 Nov 133
V. Geomagnetic A Indices
Observed Afr/Ap 17 Nov 001/001 Estimated Afr/Ap 18 Nov 003/005 Predicted Afr/Ap 19 Nov-21 Nov 014/020-021/028-011/012
VI. Geomagnetic Activity Probabilities 19 Nov to 21 Nov
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 40% | 40% | 30% |
| Minor storm | 30% | 35% | 15% |
| Major-severe storm | 10% | 15% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 10% | 05% | 15% |
| Minor storm | 25% | 20% | 30% |
| Major-severe storm | 65% | 75% | 45% |
All times in UTC
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| Last M-flare | 2024/11/20 | M1.1 |
| Last geomagnetic storm | 2024/11/10 | Kp5+ (G1) |
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