Product: Weekly Highlights and Forecasts:Issued: 2008 Jun 04 0023 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Product description and SWPC contact on the Web
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# Weekly Highlights and Forecasts
#
Highlights of Solar and Geomagnetic Activity
26 May - 01 June 2008
Solar activity was very low. No X-ray flares were observed during the period. Region 997 (S08, L=183, class/area, Axx/010 on 26 May). This region decayed to spotless plage on 27 May, and was still on the visible solar disk as the summary period ended.
No proton events were observed at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit reached high levels during 26 - 27 May.
The geomagnetic field was at quiet to active levels during the summary period. On 26 - 27 May activity was at mostly quiet levels. At approximately 0130 UTC on 28 May a co-rotating interaction region (CIR) was observed at the ACE spacecraft. Shortly thereafter the onset of a coronal hole high speed stream was observed at 0500 UTC on 28 May. During this timeframe activity increased to quiet to unsettled levels. Solar wind speed values also increased to 552
km/s around 0130 UTC on 29 May, with interplanetary magnetic field (IMF) values ranging between +/- 8 nT. On 30 May activity increased to quiet to active levels, again, due to a coronal hole high speed stream. Wind speeds gradually increased to a maximum of 657 km/s at
approximately 0730 UTC on 31 May, with IMF values ranging between +/- 6 nT. As wind speed values leveled off at around 600 km/s, the geomagnetic field declined to quiet to unsettled levels through the end of the summary period.
Forecast of Solar and Geomagnetic Activity
04 - 30 June 2008
Solar activity is expected to be very low.
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 04 - 08 June and 19 - 23 June.
The geomagnetic field is expected to be at quiet levels 04 - 14 June. Activity is expected to increase to quiet to unsettled levels on 15 - 20 June, with isolated active periods possible on 17 June as a coronal hole high speed stream rotates into a geoeffective position. Conditions should decline to quiet levels on 21 - 24 June. On 25 - 29 June expect activity to increase again to quiet to unsettled levels due to a coronal hole high speed stream. Activity should decline to quiet levels on 30 June as the coronal hole high speed stream rotates out of a geoeffective position.
Product: 27-day Space Weather Outlook Table 27DO.txt:Issued: 2008 Jun 04 0023 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Product description and SWPC contact on the Web
# http://www.swpc.noaa.gov/wwire.html
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# 27-day Space Weather Outlook Table
# Issued 2008 Jun 03
#
# UTC Radio Flux Planetary Largest
# Date 10.7 cm A Index Kp Index
2008 Jun 04 67 5 2
2008 Jun 05 67 5 2
2008 Jun 06 67 5 2
2008 Jun 07 67 5 2
2008 Jun 08 67 5 2
2008 Jun 09 67 5 2
2008 Jun 10 67 5 2
2008 Jun 11 70 5 2
2008 Jun 12 70 5 2
2008 Jun 13 70 5 2
2008 Jun 14 70 5 2
2008 Jun 15 70 8 3
2008 Jun 16 70 10 3
2008 Jun 17 70 15 4
2008 Jun 18 70 8 3
2008 Jun 19 70 10 3
2008 Jun 20 70 8 3
2008 Jun 21 70 5 2
2008 Jun 22 70 5 2
2008 Jun 23 70 5 2
2008 Jun 24 70 5 2
2008 Jun 25 70 8 3
2008 Jun 26 67 10 3
2008 Jun 27 67 8 3
2008 Jun 28 67 8 3
2008 Jun 29 67 8 3
2008 Jun 30 67 5 2
(Source: NOAA)