Product: Weekly Highlights and Forecasts:Issued: 2008 Dec 02 2351 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Product description and SWPC contact: www.swpc.noaa.gov/weekly.html
#
# Weekly Highlights and Forecasts
#
Highlights of Solar and Geomagnetic Activity
24 - 30 November 2008
Solar activity was very low through the period. No flares were observed. The visible disk was spotless.
No proton events were observed at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit was at normal levels.
Geomagnetic field activity was at mostly quiet levels on 24 November. On 25 and 26 November, activity increased to quiet to active levels, with isolated minor storm periods at high latitudes observed on the 25th. This period of activity was due to a recurrent coronal hole that rotated into a geoeffective position. By early on 27 November, activity decayed to quiet levels and remained so through the balance of the summary period. The period began with ACE solar wind
velocities at about 270 km/s. These velocities persisted through late on 24 November when wind speed jumped abruptly to about 600 km/s by midday on the 25th. During this timeframe, the Bz component of the IMF varied from a high of +18 nT (25/0543Z) to a low of -15
nT (25/0406Z) with a Bt max of 24 nT (25/0342Z), all associated with the onset of the coronal high speed stream. Wind speeds reached a maximum of 658 km/s by late on 26 November and gradually decayed to, and ended the period at about 360 km/s.
Forecast of Solar and Geomagnetic Activity
03 - 29 December 2008
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 03 December and 06 - 12
December.
Geomagnetic field activity is expected to be at mostly quiet levels on 03 December. Activity is expected to increase to unsettled to active levels during 04 - 06 December due to a recurrent CH HSS. Activity is expected to decrease to quiet levels during 07 - 21 December. Activity is expected to increase to unsettled levels on 22 - 24 December due to another recurrent CH HSS. Activity is expected to decrease to quiet levels during 25 - 29 December.
Product: 27-day Space Weather Outlook Table 27DO.txt
:Issued: 2008 Dec 02 2352 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Product description and SWPC contact: www.swpc.noaa.gov/wwire.html
# 27-day Space Weather Outlook Table
# Issued 2008 Dec 02
#
# UTC Radio Flux Planetary Largest
# Date 10.7 cm A Index Kp Index
2008 Dec 03 70 5 2
2008 Dec 04 70 8 3
2008 Dec 05 70 15 4
2008 Dec 06 70 10 3
2008 Dec 07 70 5 2
2008 Dec 08 70 5 2
2008 Dec 09 70 5 2
2008 Dec 10 69 5 2
2008 Dec 11 69 5 2
2008 Dec 12 68 5 2
2008 Dec 13 68 5 2
2008 Dec 14 68 5 2
2008 Dec 15 68 5 2
2008 Dec 16 68 5 2
2008 Dec 17 68 5 2
2008 Dec 18 68 5 2
2008 Dec 19 68 5 2
2008 Dec 20 68 5 2
2008 Dec 21 68 5 2
2008 Dec 22 68 10 3
2008 Dec 23 68 8 3
2008 Dec 24 68 8 3
2008 Dec 25 68 5 2
2008 Dec 26 69 5 2
2008 Dec 27 69 5 2
2008 Dec 28 69 5 2
2008 Dec 29 70 5 2
(NOAA)
