Report of Solar Geophysical Activity (RSGA)

 

Joint USAF/NOAA Solar Geophysical Activity Report and Forecast
SDF Number 93 Issued at 2200Z on 03 Apr 2014

IA.  Analysis of Solar Active Regions and Activity from 02/2100Z to
03/2100Z: Solar activity has been at low levels for the past 24 hours.
The largest solar event of the period was a C5 event observed at
03/0414Z from Region 2030 (N11E43). There are currently 7 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 days one, two, and three (04 Apr, 05 Apr,
06 Apr).

IIA.  Geophysical Activity Summary 02/2100Z to 03/2100Z: The geomagnetic
field has been at quiet levels for the past 24 hours. Solar wind speed,
as measured by the ACE spacecraft, reached a peak speed of 441 km/s at
03/0037Z. Total IMF reached 7 nT at 03/1828Z. The maximum southward
component of Bz reached -5 nT at 03/1446Z.
IIB.  Geophysical Activity Forecast: The geomagnetic field is expected
to be at quiet to minor storm levels on days one and two (04 Apr, 05
Apr) and quiet to unsettled levels on day three (06 Apr).

III.  Event probabilities 04 Apr-06 Apr
Class M    40/40/40
Class X    05/05/05
Proton     05/05/05
PCAF       green

IV.  Penticton 10.7 cm Flux
Observed           03 Apr 153
Predicted   04 Apr-06 Apr 155/160/160
90 Day Mean        03 Apr 159

V.  Geomagnetic A Indices
Observed Afr/Ap 02 Apr  006/006
Estimated Afr/Ap 03 Apr  006/006
Predicted Afr/Ap 04 Apr-06 Apr  009/014-018/020-008/008

VI.  Geomagnetic Activity Probabilities 04 Apr-06 Apr
A.  Middle Latitudes
Active                35/35/10
Minor Storm           15/20/01
Major-severe storm    05/05/01
B.  High Latitudes
Active                10/10/15
Minor Storm           25/25/25
Major-severe storm    50/50/20
Radio Events Observed 03 Apr 2014
A.  245 MHz Bursts
Start  End   Peak Flux  Time of Peak  Duration
0015   0015    140          0015        0000  
0316   0316    230          0316        0000  
0321   0321    110          0321        0000  
1629   1629    110          1629        0000  
2026   2027    540          2027        0001  
2106   2108    190          2106        0002  
2154   2154    100          2154        0000  
2236   2236    110          2236        0000  
B.  245 MHz Noise Storms
Start  End   Peak Flux  Time of Peak
0903   0909    150          0903              

NOAA Space Weather Scale descriptions can be found at

www.sec.noaa.gov/NOAAscales