Viewing archive of Saturday, 28 March 2020
Solar activity report
Report of Solar-Geophysical Activity 2020 Mar 28 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 88 Issued at 2200Z on 28 Mar 2020IA. 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 Mar, 30 Mar, 31 Mar).
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 418 km/s at 27/2104Z. Total IMF reached 5 nT at
28/1950Z. The maximum southward component of Bz reached -3 nT at
28/2034Z. Electrons greater than 2 MeV at geosynchronous orbit reached
a peak level of 481 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet levels on day one (29 Mar) and quiet to active levels on
days two and three (30 Mar, 31 Mar).
III. Event Probabilities 29 Mar to 31 Mar
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 28 Mar 069 Predicted 29 Mar-31 Mar 069/069/069 90 Day Mean 28 Mar 071
V. Geomagnetic A Indices
Observed Afr/Ap 27 Mar 004/004 Estimated Afr/Ap 28 Mar 004/004 Predicted Afr/Ap 29 Mar-31 Mar 006/005-009/012-010/012
VI. Geomagnetic Activity Probabilities 29 Mar to 31 Mar
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 10% | 40% | 35% |
| Minor storm | 01% | 15% | 15% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 10% | 10% |
| Minor storm | 15% | 30% | 30% |
| Major-severe storm | 10% | 55% | 50% |
All times in UTC
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