Viewing archive of Thursday, 19 November 2009
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 2009 Nov 19 2201 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 323 Issued at 2200Z on 19 Nov 2009IA. Analysis of Solar Active Regions and Activity from 18-2100Z to 19-2100Z Solar activity has been at very low levels for the past
24 hours. Region 1033 (N19E34) a Bxo-beta , has grown in area and
sunspot number. Region 1032 (N15E07) a Bxo-beta, has shown little
change. No flares have occurred.
IB. Solar Activity Forecast
Solar activity is expected to be at
very low levels with a slight chance for a C-class flare.
IIA. Geophysical Activity Summary 18-2100Z to 19-2100Z
The geomagnetic field has been at quiet levels for the past 24 hours.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be unsettled with a chance for isolated active periods
for the next two days (20-21 November) due to a recurrent coronal
hole high-speed stream. Conditions should decline to mostly quiet to
unsettled levels for the third day (22 November).
III. Event Probabilities 20 Nov to 22 Nov
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | Green | ||
IV. Penticton 10.7 cm Flux
Observed 19 Nov 077 Predicted 20 Nov-22 Nov 080/080/080 90 Day Mean 19 Nov 072
V. Geomagnetic A Indices
Observed Afr/Ap 18 Nov 002/002 Estimated Afr/Ap 19 Nov 002/005 Predicted Afr/Ap 20 Nov-22 Nov 010/010-015/015-007/010
VI. Geomagnetic Activity Probabilities 20 Nov to 22 Nov
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 20% | 30% | 10% |
| Minor storm | 10% | 15% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 20% | 30% | 10% |
| Minor storm | 10% | 15% | 05% |
| Major-severe storm | 01% | 01% | 01% |
Latest news
Saturday, 11 May 2024
Extreme G5 geomagnetic storm
Friday, 10 May 2024
Severe G4 geomagnetic storm
Friday, 10 May 2024
Coronal mass ejection impact, Severe G4 geomagnetic storm possible!
Latest forum messages
Geomagnetic storming, CMEs from AR 13664, 2024-05-09/10 1096AR3664 785Incoming Active Regions 249Is there any truth to this "Internet/Electrical Grid Apocalypse"? 144Traffic record broken!(?) Updated! 8
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 | 2024/05/11 | X5.7 |
| Last M-flare | 2024/05/11 | M1.6 |
| Last geomagnetic storm | 2024/05/10 | Kp9 (G5) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| April 2024 | 136.5 +31.6 |
| May 2024 | 139.8 +3.3 |
| Last 30 days | 170.5 +79.6 |