Viewing archive of Monday, 2 March 2015
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 2015 Mar 02 2330 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 61 Issued at 2200Z on 02 Mar 2015IA. Analysis of Solar Active Regions and Activity from 01-2100Z to 02-2100Z Solar activity has been at moderate levels for the past 24
hours. The largest solar event of the period was a M4 event observed at
02/1931Z from Region 2290 (N22W91). There are currently 4 numbered
sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be low with
a chance for M-class flares on day one (03 Mar) and expected to be low
with a slight chance for an M-class flare on day two (04 Mar) and likely
to be low on day three (05 Mar).
IIA. Geophysical Activity Summary 01-2100Z to 02-2100Z
The geomagnetic
field has been at unsettled to minor storm levels for the past 24 hours.
Solar wind speed, as measured by the ACE spacecraft, reached a peak
speed of 697 km/s at 02/1231Z. Total IMF reached 15 nT at 02/0230Z. The
maximum southward component of Bz reached -11 nT at 02/0347Z. Electrons
greater than 2 MeV at geosynchronous orbit reached a peak level of 356
pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at unsettled to active levels on days one and two (03 Mar, 04 Mar)
and quiet to unsettled levels on day three (05 Mar).
III. Event Probabilities 03 Mar to 05 Mar
| Class M | 25% | 10% | 05% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 02 Mar 130 Predicted 03 Mar-05 Mar 130/130/125 90 Day Mean 02 Mar 143
V. Geomagnetic A Indices
Observed Afr/Ap 01 Mar 023/025 Estimated Afr/Ap 02 Mar 021/030 Predicted Afr/Ap 03 Mar-05 Mar 015/020-012/015-007/010
VI. Geomagnetic Activity Probabilities 03 Mar to 05 Mar
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 40% | 35% | 30% |
| Minor storm | 15% | 10% | 10% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 10% | 15% | 15% |
| Minor storm | 30% | 30% | 30% |
| Major-severe storm | 55% | 45% | 40% |
All times in UTC
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