Viewing archive of Tuesday, 9 November 2021
Solar activity report
Report of Solar-Geophysical Activity 2021 Nov 09 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 313 Issued at 2200Z on 09 Nov 2021IA. Analysis of Solar Active Regions and Activity from 08-2100Z to 09-2100Z Solar activity has been at moderate levels for the past 24
hours. The largest solar event of the period was a M2 event observed at
09/1702Z from Region 2891 (N16, L=211). There are currently 3 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 on days one, two, and three (10 Nov,
11 Nov, 12 Nov).
IIA. Geophysical Activity Summary 08-2100Z to 09-2100Z
The geomagnetic
field has been at quiet to unsettled levels for the past 24 hours. Solar
wind speed reached a peak of 399 km/s at 08/2102Z. Total IMF reached 6
nT at 09/2040Z. The maximum southward component of Bz reached -5 nT at
09/1834Z. Protons greater than 10 MeV at geosynchronous orbit reached a
peak level of 2 pfu at 09/2030Z. Electrons greater than 2 MeV at
geosynchronous orbit reached a peak level of 2487 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet levels on days one, two, and three (10 Nov, 11 Nov, 12
Nov).
III. Event Probabilities 10 Nov to 12 Nov
| Class M | 05% | 05% | 05% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 09 Nov 092 Predicted 10 Nov-12 Nov 092/092/092 90 Day Mean 09 Nov 087
V. Geomagnetic A Indices
Observed Afr/Ap 08 Nov 003/003 Estimated Afr/Ap 09 Nov 005/006 Predicted Afr/Ap 10 Nov-12 Nov 006/005-006/005-006/005
VI. Geomagnetic Activity Probabilities 10 Nov to 12 Nov
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 10% | 10% | 10% |
| Minor storm | 01% | 01% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 20% | 20% | 20% |
| Minor storm | 20% | 20% | 20% |
| Major-severe storm | 10% | 10% | 10% |
All times in UTC
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Space weather facts
| Last X-flare | 2024/12/08 | X2.2 |
| Last M-flare | 2024/12/23 | M8.9 |
| Last geomagnetic storm | 2024/12/17 | Kp5+ (G1) |
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| Monthly mean Sunspot Number | |
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