Viewing archive of Saturday, 9 March 2019
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 2019 Mar 09 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 68 Issued at 2200Z on 09 Mar 2019IA. Analysis of Solar Active Regions and Activity from 08-2100Z to 09-2100Z Solar activity has been at very low levels for the past 24
hours. There are currently 1 numbered sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be very low
with a slight chance for a C-class flare on days one, two, and three (10
Mar, 11 Mar, 12 Mar).
IIA. Geophysical Activity Summary 08-2100Z to 09-2100Z
The geomagnetic
field has been at quiet levels for the past 24 hours. Solar wind speed
reached a peak of 468 km/s at 09/1629Z. Total IMF reached 6 nT at
09/0411Z. The maximum southward component of Bz reached -5 nT at
09/1229Z. Electrons greater than 2 MeV at geosynchronous orbit reached a
peak level of 2558 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to unsettled levels on day one (10 Mar), quiet to minor
storm levels on day two (11 Mar) and unsettled to active levels on day
three (12 Mar).
III. Event Probabilities 10 Mar to 12 Mar
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 09 Mar 071 Predicted 10 Mar-12 Mar 071/071/071 90 Day Mean 09 Mar 071
V. Geomagnetic A Indices
Observed Afr/Ap 08 Mar 003/003 Estimated Afr/Ap 09 Mar 005/005 Predicted Afr/Ap 10 Mar-12 Mar 006/008-022/030-014/018
VI. Geomagnetic Activity Probabilities 10 Mar to 12 Mar
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 10% | 40% | 35% |
| Minor storm | 01% | 20% | 10% |
| Major-severe storm | 01% | 05% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 10% | 15% |
| Minor storm | 20% | 30% | 35% |
| Major-severe storm | 10% | 55% | 40% |
All times in UTC
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