Viewing archive of Thursday, 29 February 2024
Solar activity report
Report of Solar-Geophysical Activity 2024 Feb 29 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 60 Issued at 2200Z on 29 Feb 2024IA. Analysis of Solar Active Regions and Activity from 28-2100Z to 29-2100Z 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
29/0000Z from Region 3590 (N18W65). There are currently 7 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 (01 Mar, 02 Mar) and expected to be low with a chance
for M-class flares on day three (03 Mar).
IIA. Geophysical Activity Summary 28-2100Z to 29-2100Z
The geomagnetic
field has been at quiet levels for the past 24 hours. Solar wind speed
reached a peak of 439 km/s at 28/2145Z. Electrons greater than 2 MeV at
geosynchronous orbit reached a peak level of 125 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to unsettled levels on day one (01 Mar) and quiet to
active levels on days two and three (02 Mar, 03 Mar). Protons greater
than 10 Mev have a slight chance of crossing threshold on days one and
two (01 Mar, 02 Mar).
III. Event Probabilities 01 Mar to 03 Mar
| Class M | 50% | 50% | 25% |
| Class X | 10% | 10% | 01% |
| Proton | 15% | 15% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 29 Feb 164 Predicted 01 Mar-03 Mar 160/155/160 90 Day Mean 29 Feb 163
V. Geomagnetic A Indices
Observed Afr/Ap 28 Feb 005/004 Estimated Afr/Ap 29 Feb 006/008 Predicted Afr/Ap 01 Mar-03 Mar 008/008-009/012-011/012
VI. Geomagnetic Activity Probabilities 01 Mar to 03 Mar
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 10% | 20% | 20% |
| Minor storm | 01% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 25% | 20% | 20% |
| Major-severe storm | 20% | 20% | 20% |
All times in UTC
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Space weather facts
| Last X-flare | 2024/11/06 | X2.39 |
| Last M-flare | 2024/11/20 | M1.1 |
| Last geomagnetic storm | 2024/11/10 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| October 2024 | 166.4 +25 |
| November 2024 | 142.7 -23.8 |
| Last 30 days | 155.2 +4.4 |