Friday, July 09, 2010

Weekly Propagation Forecast Bulletins

Product: Weekly Highlights and Forecasts:Issued: 2010 Jul 06 2021 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
28 June - 04 July 2010

Solar activity was at very low levels. An unnumbered plage region near N15W13 produced two B1 flares on 29 June. Region 1085 (S23, L=201, class/area Cro/010, on 29 June) appeared on the disk on 29 June and decayed to spotless plage on 30 June. Region 1084 (S19, L=144, class/area Hsx/110, on 01 July) contained a single spot. This region produced a B1 flare on 01 July.

No proton events were observed at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit reached high levels during 29 June - 04 July.

Geomagnetic field activity was predominantly at quiet levels on 28 June. Activity increased during the remainder of the forecast period, as an extension of the northern CH became geoeffective. Quiet to unsettled levels at mid-latitudes, with active levels and an isolated minor storm at high latitudes, were observed on 29 June. A further increase to quiet to active levels, with minor storm levels at high latitudes was observed on 30 June. During this
period, ACE satellite observations showed increased solar wind speed (peak 714 km/s at 30/0347 UTC), with increased IMF total field intensity (peak 11 nT at 29/2147 UTC) and increased density (9 p/cc at 29/2217 UTC). Activity decreased slightly on 01 July to quiet to
unsettled levels, with active levels at high latitudes. Quiet to unsettled levels were observed for the remainder of the period.

Forecast of Solar and Geomagnetic Activity
07 July - 02 August 2010


Solar activity is expected to be at very low levels.

No proton events are expected at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit is expected to reach high levels during 07 - 10 July, 14 – 19 July, and 26 July - 02 Aug. Normal to moderate flux levels are expected during the remainder of the period.

The geomagnetic field is expected to increase to quiet to unsettled levels during 09 - 11 July due to a recurrent CIR/CH-HSS and a weak CME resulting from a filament eruption near N43E25. Activity is expected to decrease to quiet levels during 11 - 13 July as effects from the CH HSS subside. Quiet to unsettled levels, with isolated active levels, are expected during 14 - 16 July, as a second recurrent CH-HSS becomes geoeffective. Activity is expected to
return to quiet levels during 17 - 22 July. Activity is expected to increase to unsettled to active levels during 23 - 28 July due to a third recurrent CIR/CH-HSS. Activity is expected to decrease to quiet to unsettled levels on 29 July and then to mostly quiet levels for the remainder of the period as the CH-HSS moves out of geoeffective range.

Product: 27-day Space Weather Outlook Table 27DO.txt
:Issued: 2010 Jul 06 2021 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 2010 Jul 06

#
# UTC Radio Flux Planetary Largest
# Date 10.7 cm A Index Kp Index
2010 Jul 07 74 5 2
2010 Jul 08 74 5 2
2010 Jul 09 74 6 2
2010 Jul 10 74 8 3
2010 Jul 11 76 8 3
2010 Jul 12 78 5 2
2010 Jul 13 80 5 2
2010 Jul 14 78 8 3
2010 Jul 15 80 15 3
2010 Jul 16 70 8 3
2010 Jul 17 70 5 2
2010 Jul 18 72 5 2
2010 Jul 19 74 5 2
2010 Jul 20 74 5 2
2010 Jul 21 74 5 2
2010 Jul 22 75 5 2
2010 Jul 23 75 18 4
2010 Jul 24 73 12 3
2010 Jul 25 73 10 3
2010 Jul 26 73 8 3
2010 Jul 27 73 15 3
2010 Jul 28 73 10 3
2010 Jul 29 72 8 3
2010 Jul 30 72 5 2
2010 Jul 31 72 5 2
2010 Aug 01 72 5 2
2010 Aug 02 72 5 2
(NOAA)