Viewing archive of Thursday, 24 July 2014
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 2014 Jul 24 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 24 Jul 2014IA. Analysis of Solar Active Regions and Activity from 23-2100Z to 24-2100Z Solar activity has been at low levels for the past 24 hours.
The largest solar event of the period was a C2 event observed at
24/0151Z from Region 2121 (N07E45). There are currently 4 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 days one and two (25 Jul, 26 Jul)
and likely to be low with a slight chance for an M-class flare on day
three (27 Jul).
IIA. Geophysical Activity Summary 23-2100Z to 24-2100Z
The geomagnetic
field has been at quiet to unsettled levels for the past 24 hours. Solar
wind speed, as measured by the ACE spacecraft, reached a peak speed of
409 km/s at 24/1152Z. Total IMF reached 6 nT at 23/2312Z. The maximum
southward component of Bz reached -4 nT at 24/1022Z.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to unsettled levels on days one and two (25 Jul, 26 Jul)
and quiet levels on day three (27 Jul).
III. Event Probabilities 25 Jul to 27 Jul
| Class M | 01% | 05% | 10% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 24 Jul 104 Predicted 25 Jul-27 Jul 110/115/125 90 Day Mean 24 Jul 129
V. Geomagnetic A Indices
Observed Afr/Ap 23 Jul 007/005 Estimated Afr/Ap 24 Jul 005/005 Predicted Afr/Ap 25 Jul-27 Jul 008/008-007/008-006/005
VI. Geomagnetic Activity Probabilities 25 Jul to 27 Jul
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 20% | 20% | 10% |
| Minor storm | 01% | 01% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 20% | 20% | 15% |
| Major-severe storm | 15% | 15% | 10% |
All times in UTC
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