Viewing archive of Tuesday, 27 November 2018
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 2018 Nov 27 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 331 Issued at 2200Z on 27 Nov 2018IA. Analysis of Solar Active Regions and Activity from 26-2100Z to 27-2100Z 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 (28 Nov, 29 Nov, 30 Nov).
IIA. Geophysical Activity Summary 26-2100Z to 27-2100Z
The geomagnetic
field has been at quiet levels for the past 24 hours. Solar wind speed
reached a peak of 422 km/s at 27/2057Z. Total IMF reached 7 nT at
27/2039Z. The maximum southward component of Bz reached -7 nT at
27/1955Z.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet levels on days one, two, and three (28 Nov, 29 Nov, 30
Nov).
III. Event Probabilities 28 Nov to 30 Nov
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 27 Nov 068 Predicted 28 Nov-30 Nov 068/068/068 90 Day Mean 27 Nov 069
V. Geomagnetic A Indices
Observed Afr/Ap 26 Nov 002/001 Estimated Afr/Ap 27 Nov 005/006 Predicted Afr/Ap 28 Nov-30 Nov 005/005-006/005-006/005
VI. Geomagnetic Activity Probabilities 28 Nov to 30 Nov
| 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 | 20% | 20% | 20% |
| Major-severe storm | 15% | 15% | 15% |
All times in UTC
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