Viewing archive of Monday, 25 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 25 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 207 Issued at 2200Z on 25 Jul 2016IA. Analysis of Solar Active Regions and Activity from 24-2100Z to 25-2100Z Solar activity has been at low levels for the past 24 hours.
The largest solar event of the period was a C1 event observed at
25/0909Z from Region 2567 (N05W0*). There are currently 0 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 and a slight chance for an M-class
flare on day one (26 Jul) and expected to be very low with a slight
chance for a C-class flare on days two and three (27 Jul, 28 Jul).
IIA. Geophysical Activity Summary 24-2100Z to 25-2100Z
The geomagnetic
field has been at quiet to active levels for the past 24 hours. Solar
wind speed reached a peak of 503 km/s at 25/0204Z. Total IMF reached 11
nT at 24/2103Z. The maximum southward component of Bz reached -6 nT at
25/0826Z. Electrons greater than 2 MeV at geosynchronous orbit reached a
peak level of 622 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to active levels on days one, two, and three (26 Jul, 27
Jul, 28 Jul).
III. Event Probabilities 26 Jul to 28 Jul
| Class M | 10% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 25 Jul 074 Predicted 26 Jul-28 Jul 070/070/070 90 Day Mean 25 Jul 088
V. Geomagnetic A Indices
Observed Afr/Ap 24 Jul 012/017 Estimated Afr/Ap 25 Jul 015/018 Predicted Afr/Ap 26 Jul-28 Jul 010/015-010/012-011/005
VI. Geomagnetic Activity Probabilities 26 Jul to 28 Jul
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 30% | 35% | 30% |
| Minor storm | 15% | 15% | 10% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 30% | 30% | 30% |
| Major-severe storm | 45% | 45% | 40% |
All times in UTC
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