Viewing archive of Wednesday, 15 November 2023
Solar activity report
Report of Solar-Geophysical Activity 2023 Nov 15 2205 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 319 Issued at 2200Z on 15 Nov 2023IA. Analysis of Solar Active Regions and Activity from 14-2100Z to 15-2100Z Solar activity has been at moderate levels for the past 24
hours. The largest solar event of the period was a M1 event observed at
14/2305Z from Region 3485 (S18W79). There are currently 3 numbered
sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be low with
a slight chance for an M-class flare on days one, two, and three (16
Nov, 17 Nov, 18 Nov).
IIA. Geophysical Activity Summary 14-2100Z to 15-2100Z
The geomagnetic
field has been at quiet to unsettled levels for the past 24 hours. Solar
wind speed reached a peak of 437 km/s at 15/1800Z. Total IMF reached 10
nT at 14/2108Z. The maximum southward component of Bz reached -6 nT at
15/1536Z. Electrons greater than 2 MeV at geosynchronous orbit reached
a peak level of 101 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to active levels on day one (16 Nov), quiet to unsettled
levels on day two (17 Nov) and quiet levels on day three (18 Nov).
III. Event Probabilities 16 Nov to 18 Nov
| Class M | 15% | 15% | 20% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 15 Nov 119 Predicted 16 Nov-18 Nov 120/118/116 90 Day Mean 15 Nov 147
V. Geomagnetic A Indices
Observed Afr/Ap 14 Nov 005/005 Estimated Afr/Ap 15 Nov 010/013 Predicted Afr/Ap 16 Nov-18 Nov 010/010-008/008-005/005
VI. Geomagnetic Activity Probabilities 16 Nov to 18 Nov
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 20% | 15% | 10% |
| Minor storm | 05% | 05% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 20% | 20% | 15% |
| Major-severe storm | 20% | 20% | 10% |
All times in UTC
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