Viewing archive of Monday, 19 February 2024
Solar activity report
Report of Solar-Geophysical Activity 2024 Feb 19 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 50 Issued at 2200Z on 19 Feb 2024IA. Analysis of Solar Active Regions and Activity from 18-2100Z to 19-2100Z 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
19/0940Z from Region 3590 (N18E61). There are currently 5 numbered
sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be low with
a chance for M-class flares on days one, two, and three (20 Feb, 21 Feb,
22 Feb).
IIA. Geophysical Activity Summary 18-2100Z to 19-2100Z
The geomagnetic
field has been at quiet levels for the past 24 hours. Solar wind speed
reached a peak of 332 km/s at 18/2317Z. Total IMF reached 5 nT at
18/2100Z. The maximum southward component of Bz reached -3 nT at
19/1910Z. Electrons greater than 2 MeV at geosynchronous orbit reached
a peak level of 104 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to unsettled levels on day one (20 Feb) and quiet levels
on days two and three (21 Feb, 22 Feb).
III. Event Probabilities 20 Feb to 22 Feb
| Class M | 30% | 25% | 25% |
| Class X | 05% | 05% | 05% |
| Proton | 05% | 05% | 05% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 19 Feb 152 Predicted 20 Feb-22 Feb 160/160/155 90 Day Mean 19 Feb 163
V. Geomagnetic A Indices
Observed Afr/Ap 18 Feb 004/005 Estimated Afr/Ap 19 Feb 006/007 Predicted Afr/Ap 20 Feb-22 Feb 008/010-006/005-006/005
VI. Geomagnetic Activity Probabilities 20 Feb to 22 Feb
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 15% | 10% | 10% |
| Minor storm | 05% | 01% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 20% | 20% | 20% |
| Major-severe storm | 20% | 20% | 20% |
All times in UTC
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Space weather facts
| Last X-flare | 2024/09/14 | X4.54 |
| Last M-flare | 2024/09/14 | M3.0 |
| Last geomagnetic storm | 2024/09/17 | Kp8- (G4) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| August 2024 | 215.5 +19 |
| September 2024 | 151.6 -63.9 |
| Last 30 days | 158.3 -54.2 |