Viewing archive of Tuesday, 9 March 2021
Solar activity report
Report of Solar-Geophysical Activity 2021 Mar 09 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 68 Issued at 2200Z on 09 Mar 2021IA. Analysis of Solar Active Regions and Activity from 08-2100Z to 09-2100Z Solar activity has been at low levels for the past 24 hours.
The largest solar event of the period was a C1 event observed at
09/1235Z from Region 2808 (N19E68). There are currently 2 numbered
sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be very low
with a slight chance for a C-class flare on days one, two, and three (10
Mar, 11 Mar, 12 Mar).
IIA. Geophysical Activity Summary 08-2100Z to 09-2100Z
The geomagnetic
field has been at quiet levels for the past 24 hours. Solar wind speed
reached a peak of 531 km/s at 08/2324Z. Electrons greater than 2 MeV at
geosynchronous orbit reached a peak level of 1413 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet levels on days one and two (10 Mar, 11 Mar) and quiet to
unsettled levels on day three (12 Mar).
III. Event Probabilities 10 Mar to 12 Mar
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 09 Mar 084 Predicted 10 Mar-12 Mar 082/082/082 90 Day Mean 09 Mar 077
V. Geomagnetic A Indices
Observed Afr/Ap 08 Mar 005/004 Estimated Afr/Ap 09 Mar 004/004 Predicted Afr/Ap 10 Mar-12 Mar 005/005-006/005-007/008
VI. Geomagnetic Activity Probabilities 10 Mar to 12 Mar
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 01% | 01% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 20% | 20% | 25% |
| Major-severe storm | 20% | 20% | 25% |
All times in UTC
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