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Report of Solar-Geophysical Activity 2024 Jun 20 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 172 Issued at 2200Z on 20 Jun 2024IA. Analysis of Solar Active Regions and Activity from 19-2100Z to 20-2100Z Solar activity has been at moderate levels for the past 24
hours. The largest solar event of the period was a M1 event observed at
20/1518Z from Region 3719 (S13E55). There are currently 6 numbered
sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is likely to be moderate
with a slight chance for an X-class flare on days one, two, and three
(21 Jun, 22 Jun, 23 Jun).
IIA. Geophysical Activity Summary 19-2100Z to 20-2100Z
The geomagnetic
field has been at quiet levels for the past 24 hours. Solar wind speed
reached a peak of 527 km/s at 19/2106Z. Total IMF reached 5 nT at
20/1747Z. The maximum southward component of Bz reached -3 nT at
20/0624Z. Electrons greater than 2 MeV at geosynchronous orbit reached
a peak level of 560 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to unsettled levels on days one and three (21 Jun, 23
Jun) and quiet to active levels on day two (22 Jun).
III. Event Probabilities 21 Jun to 23 Jun
| Class M | 60% | 60% | 60% |
| Class X | 15% | 15% | 15% |
| Proton | 05% | 05% | 05% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 20 Jun 203 Predicted 21 Jun-23 Jun 205/210/200 90 Day Mean 20 Jun 176
V. Geomagnetic A Indices
Observed Afr/Ap 19 Jun 009/010 Estimated Afr/Ap 20 Jun 006/005 Predicted Afr/Ap 21 Jun-23 Jun 008/010-011/012-008/010
VI. Geomagnetic Activity Probabilities 21 Jun to 23 Jun
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 20% | 30% | 20% |
| Minor storm | 05% | 10% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 25% | 30% | 25% |
| Major-severe storm | 30% | 40% | 30% |
All times in UTC
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Space weather facts
| Last X-flare | 2024/06/10 | X1.55 |
| Last M-flare | 2024/07/01 | M2.1 |
| Last geomagnetic storm | 2024/06/28 | Kp8- (G4) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| مايو ٢٠٢٤ | 171.7 +35.2 |
| Last 30 days | 155.8 +6.7 |