Viewing archive of Thursday, 2 March 2023
Solar activity report
Report of Solar-Geophysical Activity 2023 Mar 02 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 61 Issued at 2200Z on 02 Mar 2023IA. Analysis of Solar Active Regions and Activity from 01-2100Z to 02-2100Z 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
02/1210Z. There are currently 6 numbered sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be low with
a chance for M-class flares and a slight chance for an X-class flare on
days one and two (03 Mar, 04 Mar) and expected to be low with a chance
for M-class flares on day three (05 Mar).
IIA. Geophysical Activity Summary 01-2100Z to 02-2100Z
The geomagnetic
field has been at quiet to unsettled levels for the past 24 hours. Solar
wind speed reached a peak of 571 km/s at 01/2142Z. Total IMF reached 10
nT at 02/2100Z. The maximum southward component of Bz reached -7 nT at
02/2056Z. Electrons greater than 2 MeV at geosynchronous orbit reached
a peak level of 3374 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet levels on day one (03 Mar), quiet to active levels on day
two (04 Mar) and quiet to minor storm levels on day three (05 Mar).
Protons have a slight chance of crossing threshold on days one, two, and
three (03 Mar, 04 Mar, 05 Mar).
III. Event Probabilities 03 Mar to 05 Mar
| Class M | 45% | 45% | 30% |
| Class X | 10% | 10% | 05% |
| Proton | 10% | 10% | 10% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 02 Mar 169 Predicted 03 Mar-05 Mar 165/165/165 90 Day Mean 02 Mar 169
V. Geomagnetic A Indices
Observed Afr/Ap 01 Mar 006/005 Estimated Afr/Ap 02 Mar 006/008 Predicted Afr/Ap 03 Mar-05 Mar 006/005-010/012-014/020
VI. Geomagnetic Activity Probabilities 03 Mar to 05 Mar
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 15% | 30% | 35% |
| Minor storm | 01% | 10% | 20% |
| Major-severe storm | 01% | 01% | 05% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 10% |
| Minor storm | 20% | 30% | 25% |
| Major-severe storm | 20% | 40% | 55% |
All times in UTC
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