Product: Weekly Highlights and Forecasts:Issued: 2008 May 29 2000 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/weekly.html
#
# Weekly Highlights and Forecasts
Highlights of Solar and Geomagnetic Activity
19 - 25 May 2008
Solar activity was very low. No X-ray flares were observed during the period. Regions 994 (S12, L=310, class/area, Bxo/020 on 19 May) and 996 (N09, L=256, class/area, Bxo/010 on 19 May) were on the disk when the period began as B-type groups. By 21 May both of these regions had decayed to spotless plage, and remained spotless through the remainder of the period.
No proton events were observed at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit reached high levels during 23 - 25 May.
The geomagnetic field was at quiet to unsettled levels during the summary period. Activity levels did increase on 21 May to quiet to active levels due to a coronal hole high speed stream. Solar wind speed measurements from the ACE spacecraft began the period at around 340 km/s and slowly increased to a maximum of approximately 630 km/s at 1432 UTC on 21 May. The inter-planetary magnetic field (IMF) Bz component during this time ranged between +/- 7. Solar wind speeds declined throughout the rest of the summary period to end at about 450 km/s, with IMF Bz ranging between +/- 5.
Forecast of Solar and Geomagnetic Activity
28 May - 23 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 01 - 10 June and 19 - 23
June.
The geomagnetic field is expected to be at quiet levels on 28 May. On 29 May a coronal hole high speed stream is expected to rotate into a geoeffective position and increase activity levels to quiet to unsettled levels; isolated periods of active conditions may be observed during this period. On 10 June activity levels should decrease again to mostly quiet conditions through 14 June. Another coronal hole high speed stream is expected to impact the geomagnetic field on 15 June. Activity levels should increase again to quiet to unsettled levels, with a chance for isolated active conditions. On 23 June conditions are expected to be at quiet levels.
Product: 27-day Space Weather Outlook Table 27DO.txt:Issued: 2008 May 29 1607 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
#
# 27-day Space Weather Outlook Table
# Issued 2008 May 29
#
# UTC Radio Flux Planetary Largest
# Date 10.7 cm A Index Kp Index
2008 May 30 68 10 3
2008 May 31 68 8 3
2008 Jun 01 68 10 3
2008 Jun 02 68 10 3
2008 Jun 03 68 10 3
2008 Jun 04 68 5 2
2008 Jun 05 68 10 3
2008 Jun 06 68 10 3
2008 Jun 07 68 10 3
2008 Jun 08 68 10 3
2008 Jun 09 68 10 3
2008 Jun 10 70 5 2
2008 Jun 11 70 5 2
2008 Jun 12 72 5 2
2008 Jun 13 72 5 2
2008 Jun 14 72 5 2
2008 Jun 15 70 8 3
2008 Jun 16 70 15 3
2008 Jun 17 70 5 2
2008 Jun 18 70 15 3
2008 Jun 19 68 10 3
2008 Jun 20 68 10 3
2008 Jun 21 68 10 3
2008 Jun 22 68 10 3
2008 Jun 23 68 5 2
(NOAA)