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Report of Solar-Geophysical Activity 2024 Jun 16 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 168 Issued at 2200Z on 16 Jun 2024IA. Analysis of Solar Active Regions and Activity from 15-2100Z to 16-2100Z Solar activity has been at low levels for the past 24 hours.
The largest solar event of the period was a C7 event observed at
15/2323Z from Region 3712 (S25E14). There are currently 7 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
(17 Jun, 18 Jun, 19 Jun).
IIA. Geophysical Activity Summary 15-2100Z to 16-2100Z
The geomagnetic
field has been at quiet to active levels for the past 24 hours. Solar
wind speed reached a peak of 487 km/s at 15/2218Z. Total IMF reached 12
nT at 15/2114Z. The maximum southward component of Bz reached -11 nT at
15/2101Z.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to unsettled levels on day one (17 Jun), quiet to active
levels on day two (18 Jun) and quiet levels on day three (19 Jun).
Protons have a slight chance of crossing threshold on days one, two, and
three (17 Jun, 18 Jun, 19 Jun).
III. Event Probabilities 17 Jun to 19 Jun
| Class M | 55% | 55% | 55% |
| Class X | 10% | 10% | 10% |
| Proton | 10% | 10% | 10% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 16 Jun 167 Predicted 17 Jun-19 Jun 175/180/180 90 Day Mean 16 Jun 176
V. Geomagnetic A Indices
Observed Afr/Ap 15 Jun 018/020 Estimated Afr/Ap 16 Jun 011/013 Predicted Afr/Ap 17 Jun-19 Jun 008/008-014/015-007/008
VI. Geomagnetic Activity Probabilities 17 Jun to 19 Jun
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 20% | 35% | 20% |
| Minor storm | 05% | 20% | 05% |
| Major-severe storm | 01% | 05% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 10% | 15% |
| Minor storm | 25% | 30% | 25% |
| Major-severe storm | 30% | 50% | 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 |