Report of Solar Geophysical Activity (RSGA)

 

Joint USAF/NOAA Solar Geophysical Activity Report and Forecast
SDF Number 280 Issued at 2200Z on 07 Oct 2013

IA.  Analysis of Solar Active Regions and Activity from 06/2100Z to
07/2100Z: Solar activity has been at low levels for the past 24 hours.
The largest solar event of the period was a C6 event observed at
07/0414Z from Region 1856 (N07E02). There are currently 6 numbered
sunspot regions on the disk.
IB.  Solar Activity Forecast: Solar activity is likely to be low with a
slight chance for an M-class flare on days one, two, and three (08 Oct,
09 Oct, 10 Oct).

IIA.  Geophysical Activity Summary 06/2100Z to 07/2100Z: 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
341 km/s at 07/0055Z. Total IMF reached 6 nT at 07/0517Z. The maximum
southward component of Bz reached -6 nT at 07/0319Z. Electrons greater
than 2 MeV at geosynchronous orbit reached a peak level of 669 pfu.
IIB.  Geophysical Activity Forecast: The geomagnetic field is expected
to be at quiet levels on day one (08 Oct), quiet to unsettled levels on
day two (09 Oct) and quiet to active levels on day three (10 Oct).

III.  Event probabilities 08 Oct-10 Oct
Class M    10/10/10
Class X    01/01/01
Proton     01/01/01
PCAF       green

IV.  Penticton 10.7 cm Flux
Observed           07 Oct 112
Predicted   08 Oct-10 Oct 110/110/110
90 Day Mean        07 Oct 110

V.  Geomagnetic A Indices
Observed Afr/Ap 06 Oct  003/002
Estimated Afr/Ap 07 Oct  005/006
Predicted Afr/Ap 08 Oct-10 Oct  006/005-007/008-012/012

VI.  Geomagnetic Activity Probabilities 08 Oct-10 Oct
A.  Middle Latitudes
Active                10/20/30
Minor Storm           01/05/10
Major-severe storm    01/01/01
B.  High Latitudes
Active                15/15/15
Minor Storm           15/30/30
Major-severe storm    10/30/40
 

Radio Events Observed 07 Oct 2013
A.  245 MHz Bursts
Start  End   Peak Flux  Time of Peak  Duration
1424   1424    180          1424        0000  
B.  245 MHz Noise Storms
No 245 MHz Noise Storms Observed.


		
Official Space Weather Advisory issued by NOAA Space Weather 
		Prediction Center

		Boulder, Colorado, USA

		

		SPACE WEATHER ADVISORY OUTLOOK #13-41

		2013 October 7 at 4:04 a.m. MDT (2013 October 7 1004 UTC)

		

		**** SPACE WEATHER OUTLOOK ****

		

		Summary For September 30-October 6

		

		Geomagnetic storms reaching the G2 (Moderate) level were observed on 02 
		October.  Solar radiation storms reaching the S2 (Moderate) level 
		were observed on 30 September - 02 October.

		

		Outlook For October 7-13

		

		No space weather storms are expected during the outlook period.  
		

		

		SPACE WEATHER ADVISORY OUTLOOK #13-40

		2013 October 6 at 7:09 p.m. MDT (2013 October 7 0109 UTC)

		

		**** SPACE WEATHER OUTLOOK ****

		

		Summary For September 30-October 6

		

		Geomagnetic storms reaching the G2 (moderate)  level were observed 
		on 02 October.  Solar radiation storms reaching the S2 (moderate) 
		level were observed between 30 September through 02 October.

		

		Outlook For October 7-13

		

		There is a slight chance for R1 (minor) radio blackouts through the 
		period.