Viewing archive of Thursday, 28 November 2019
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 2019 Nov 28 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 332 Issued at 2200Z on 28 Nov 2019IA. Analysis of Solar Active Regions and Activity from 27-2100Z to 28-2100Z Solar activity has been at very low levels for the past 24
hours. There are currently 0 numbered sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be very low
on days one, two, and three (29 Nov, 30 Nov, 01 Dec).
IIA. Geophysical Activity Summary 27-2100Z to 28-2100Z
The geomagnetic
field has been at quiet levels for the past 24 hours. Solar wind speed
reached a peak of 398 km/s at 27/2254Z. Total IMF reached 5 nT at
27/2305Z. The maximum southward component of Bz reached -5 nT at
28/1659Z. Electrons greater than 2 MeV at geosynchronous orbit reached a
peak level of 1290 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet levels on days one, two, and three (29 Nov, 30 Nov, 01
Dec).
III. Event Probabilities 29 Nov to 01 Dec
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 28 Nov 070 Predicted 29 Nov-01 Dec 070/070/070 90 Day Mean 28 Nov 069
V. Geomagnetic A Indices
Observed Afr/Ap 27 Nov 002/004 Estimated Afr/Ap 28 Nov 004/005 Predicted Afr/Ap 29 Nov-01 Dec 006/005-006/005-006/005
VI. Geomagnetic Activity Probabilities 29 Nov to 01 Dec
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 10% | 10% | 10% |
| Minor storm | 01% | 01% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 15% | 15% | 15% |
| Major-severe storm | 10% | 10% | 10% |
All times in UTC
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