Viewing archive of Sunday, 29 March 2020
Solar activity report
Report of Solar-Geophysical Activity 2020 Mar 29 2230 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 89 Issued at 2200Z on 29 Mar 2020IA. Analysis of Solar Active Regions and Activity from 28-2100Z to 29-2100Z 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 (30 Mar, 31 Mar, 01 Apr).
IIA. Geophysical Activity Summary 28-2100Z to 29-2100Z
The geomagnetic
field has been at quiet to unsettled levels for the past 24 hours. Solar
wind speed reached a peak of 449 km/s at 29/0728Z. Total IMF reached 6
nT at 29/0838Z. The maximum southward component of Bz reached -4 nT at
29/1050Z. Electrons greater than 2 MeV at geosynchronous orbit reached
a peak level of 278 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to active levels on days one and two (30 Mar, 31 Mar) and
quiet to unsettled levels on day three (01 Apr).
III. Event Probabilities 30 Mar to 01 Apr
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 29 Mar 068 Predicted 30 Mar-01 Apr 068/068/068 90 Day Mean 29 Mar 071
V. Geomagnetic A Indices
Observed Afr/Ap 28 Mar 004/005 Estimated Afr/Ap 29 Mar 007/008 Predicted Afr/Ap 30 Mar-01 Apr 009/012-010/012-007/008
VI. Geomagnetic Activity Probabilities 30 Mar to 01 Apr
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 40% | 35% | 30% |
| Minor storm | 15% | 15% | 10% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 10% | 10% | 15% |
| Minor storm | 30% | 30% | 30% |
| Major-severe storm | 55% | 50% | 40% |
All times in UTC
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