Viewing archive of Tuesday, 19 June 2001
Solar activity report
Any mentioned solar flare in this report has a scaling factor applied by the Space Weather Prediction Center (SWPC). Because of the SWPC scaling factor, solar flares are reported as 42% smaller than for the science quality data. The scaling factor has been removed from our archived solar flare data to reflect the true physical units.
Report of Solar-Geophysical Activity 2001 Jun 19 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 170 Issued at 2200Z on 19 Jun 2001IA. Analysis of Solar Active Regions and Activity from 18-2100Z to 19-2100Z Solar activity decreased to low levels. Isolated,
optically uncorrelated, low-level C-class x-ray flares occurred. An
optically uncorrelated Type II radio sweep (estimated shock velocity
650 km/sec) occurred at 19/0335 UTC. Regions 9503 (N15W07) and 9506
(N18E20) each possessed a minor degree of magnetic complexity, but
were stable through the period. The remaining regions were
simply-structured and stable. New Region 9509 (S10W03) was numbered.
IB. Solar Activity Forecast
Solar activity is expected to be low
to moderate. There will be a fair chance for an isolated M-class
flare during the period.
IIA. Geophysical Activity Summary 18-2100Z to 19-2100Z
Geomagnetic field activity ranged from quiet to active levels.
IIB. Geophysical Activity Forecast
Geomagnetic field activity is
expected to be at quiet to unsettled levels with a chance for active
periods early on the first day.
III. Event Probabilities 20 Jun to 22 Jun
| Class M | 40% | 40% | 40% |
| Class X | 10% | 10% | 10% |
| Proton | 10% | 10% | 10% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 19 Jun 195 Predicted 20 Jun-22 Jun 190/190/190 90 Day Mean 19 Jun 174
V. Geomagnetic A Indices
Observed Afr/Ap 18 Jun 025/034 Estimated Afr/Ap 19 Jun 015/018 Predicted Afr/Ap 20 Jun-22 Jun 010/012-007/010-007/010
VI. Geomagnetic Activity Probabilities 20 Jun to 22 Jun
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 25% | 15% | 15% |
| Minor storm | 10% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 30% | 20% | 20% |
| Minor storm | 15% | 10% | 10% |
| Major-severe storm | 01% | 01% | 01% |
All times in UTC
Latest news
Saturday, 14 September 2024
X4.5 solar flare with a fast coronal mass ejection
Thursday, 12 September 2024
G3 geomagnetic storm watch due to CME passage
Monday, 12 August 2024
Severe G4 geomagnetic storm
Latest forum messages
Growth of Cycle 25 689AR 3825 221Unspecified geomagnetic activity 1447Some weird thing on farside seismic signature 11Density and Temperature ?s 3
More topicsSupport SpaceWeatherLive.com!
A lot of people come to SpaceWeatherLive to follow the Sun's activity or if there is aurora to be seen, but with more traffic comes higher server costs. Consider a donation if you enjoy SpaceWeatherLive so we can keep the website online!
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 |