Product: Weekly Highlights and Forecasts :Issued: 2013 Sep 09 0225 UTC # Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center # Product description and SWPC web contact www.swpc.noaa.gov/weekly.html # # Weekly Highlights and Forecasts # Highlights of Solar and Geomagnetic Activity 02 - 08 September 2013 Solar activity was at very low to low levels. Very low levels were observed on 02 September. Activity increased to low levels on 03 September with a single C1/Sf flare at 03/1747 UTC from Region 1834 (N12, L=021, class/area Dai/090 on 02 September). 04 September saw 8 C-class events, the largest a C3/Sf at 04/0431 UTC from Region 1837 (S16, L=352, class/area Dsi/130 on 05 September). A pair of C-class flares were observed on 05 September, the largest a C1/Sf at 05/1955 UTC from Region 1836 (N11, L=339 class/area Cao/180 on 30 August). Low levels continued on 06 September with a C1 x-ray event from an unnumbered region beyond the NE limb. The period closed out on 07 - 08 September with very low levels. No Earth-directed coronal mass ejections (CMEs) were observed during the summary period. No proton events were observed at geosynchronous orbit. The greater than 2 MeV electron flux at geosynchronous orbit was at moderate to high levels through the summary period. Geomagnetic field activity was at quiet to unsettled levels. 02 - 03 September observed quiet to unsettled levels due to residual coronal hole high speed stream (CH HSS) effects combined with weak effects from the 30 August CME. The remainder of the period saw quiet levels with an isolated unsettled period early on 08 September. Solar wind began the period on 02 September at about 525 km/s, declined in speed to near 350 km/s by early on 03 September and varied between 350 km/s to 500 km/s through the remainder of the period. Interplanetary magnetic field (IMF) Bt varied between 3 to 9 nT while the Bz component of the IMF did not vary much beyond +7/-5 nT. Phi angle was in a predominately negative (towards) orientation for a majority of the period with positive (away) orientation on 02 September and again on 08 September. Forecast of Solar and Geomagnetic Activity 09 September - 05 October 2013 Solar activity is expected to be very low to low levels. No proton events are expected at geosynchronous orbit. The greater than 2 MeV electron flux at geosynchronous orbit is expected to be moderate to high levels on 12 - 16 September, 19 - 23 September and 29 September - 05 October due to activity associated with CH HSSs. Normal to moderate levels are expected for the remainder of the period. Geomagnetic field activity is expected to be at quiet to unsettled levels on 09 - 13 September with isolated active periods on 09 and 12 September due to CH HSS effects. Mostly quiet conditions are expected on 14 - 16 September. Quiet to active conditions are expected from 17 - 20 September, quiet to unsettled conditions from 23 - 24 September and quiet to active conditions on 26 - 29 September due to CH HSS effects. Mostly quiet conditions are expected for the remaining periods.
Product: 27-day Space Weather Outlook Table 27DO.txt
:Issued: 2013 Sep 09 0225 UTC # Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center # Product description and SWPC web contact www.swpc.noaa.gov/wwire.html # # 27-day Space Weather Outlook Table # Issued 2013-09-09 # # UTC Radio Flux Planetary Largest # Date 10.7 cm A Index Kp Index 2013 Sep 09 105 10 4 2013 Sep 10 110 10 3 2013 Sep 11 110 8 3 2013 Sep 12 110 18 4 2013 Sep 13 110 8 3 2013 Sep 14 110 8 3 2013 Sep 15 110 5 2 2013 Sep 16 105 5 2 2013 Sep 17 100 15 4 2013 Sep 18 105 15 4 2013 Sep 19 110 15 4 2013 Sep 20 115 8 3 2013 Sep 21 120 5 2 2013 Sep 22 120 5 2 2013 Sep 23 115 5 2 2013 Sep 24 115 5 2 2013 Sep 25 115 5 2 2013 Sep 26 115 10 3 2013 Sep 27 115 15 4 2013 Sep 28 115 10 3 2013 Sep 29 115 10 3 2013 Sep 30 115 5 2 2013 Oct 01 110 5 2 2013 Oct 02 105 5 2 2013 Oct 03 100 5 2 2013 Oct 04 95 5 2 2013 Oct 05 95 5 2 (NOAA)