Viewing archive of Saturday, 23 July 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 Jul 23 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 205 Issued at 2200Z on 23 Jul 2016IA. Analysis of Solar Active Regions and Activity from 22-2100Z to 23-2100Z Solar activity has been at high levels for the past 24 hours.
The largest solar event of the period was a M7 event observed at
23/0516Z from Region 2567 (N05W80). There are currently 2 numbered
sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be low with
a chance for M-class flares and a slight chance for an X-class flare on
day one (24 Jul) and likely to be low with a chance for M-class flares
on day two (25 Jul) and expected to be very low with a slight chance for
a C-class flare on day three (26 Jul).
IIA. Geophysical Activity Summary 22-2100Z to 23-2100Z
The geomagnetic
field has been at quiet to unsettled levels for the past 24 hours. Solar
wind speed reached a peak of 511 km/s at 22/2114Z. Total IMF reached 7
nT at 22/2218Z. The maximum southward component of Bz reached -6 nT at
23/0610Z.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to unsettled levels on day one (24 Jul), quiet levels on
day two (25 Jul) and quiet to active levels on day three (26 Jul).
Protons greater than 10 Mev have a slight chance of crossing threshold
on days one and two (24 Jul, 25 Jul).
III. Event Probabilities 24 Jul to 26 Jul
| Class M | 40% | 30% | 01% |
| Class X | 10% | 01% | 01% |
| Proton | 10% | 10% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 23 Jul 086 Predicted 24 Jul-26 Jul 085/080/075 90 Day Mean 23 Jul 089
V. Geomagnetic A Indices
Observed Afr/Ap 22 Jul 008/008 Estimated Afr/Ap 23 Jul 009/009 Predicted Afr/Ap 24 Jul-26 Jul 007/008-006/005-010/015
VI. Geomagnetic Activity Probabilities 24 Jul to 26 Jul
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 10% | 10% | 35% |
| Minor storm | 01% | 01% | 15% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 20% | 20% | 15% |
| Minor storm | 25% | 25% | 30% |
| Major-severe storm | 15% | 10% | 45% |
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