Viewing archive of Monday, 2 May 2016
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 2016 May 02 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 123 Issued at 2200Z on 02 May 2016IA. Analysis of Solar Active Regions and Activity from 01-2100Z to 02-2100Z Solar activity has been at low levels for the past 24 hours.
The largest solar event of the period was a C3 event observed at
02/0842Z from Region 2540 (N22E24). There are currently 5 numbered
sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be very low
with a chance for a C-class flares on day one (03 May) and likely to be
low on days two and three (04 May, 05 May).
IIA. Geophysical Activity Summary 01-2100Z to 02-2100Z
The geomagnetic
field has been at unsettled to major storm levels for the past 24 hours.
Solar wind speed reached a peak of 559 km/s at 02/1830Z. Total IMF
reached 9 nT at 02/1908Z. The maximum southward component of Bz reached
-8 nT at 02/0119Z. Electrons greater than 2 MeV at geosynchronous orbit
reached a peak level of 874 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to unsettled levels on day one (03 May) and quiet levels
on days two and three (04 May, 05 May).
III. Event Probabilities 03 May to 05 May
| Class M | 05% | 05% | 05% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 02 May 090 Predicted 03 May-05 May 095/105/110 90 Day Mean 02 May 096
V. Geomagnetic A Indices
Observed Afr/Ap 01 May 016/017 Estimated Afr/Ap 02 May 021/026 Predicted Afr/Ap 03 May-05 May 010/010-006/005-006/005
VI. Geomagnetic Activity Probabilities 03 May to 05 May
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 15% | 10% | 10% |
| Minor storm | 05% | 01% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 20% | 15% | 15% |
| Minor storm | 25% | 15% | 15% |
| Major-severe storm | 20% | 10% | 10% |
All times in UTC
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