Tuesday, June 10, 2008

Weekly Propagation Forecast Bulletins

Product: Weekly Highlights and Forecasts
:Issued: 2008 Jun 10 2053 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Product description and SWPC contact at:
# http://www.swpc.noaa.gov/weekly.html


# Weekly Highlights and Forecasts

Highlights of Solar and Geomagnetic Activity
02 - 08 June 2008

Solar activity was very low. No flares were detected. 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 through the period.

Geomagnetic field activity was at mostly quiet levels during 02 - 05 June. Activity increased to quiet to unsettled levels for the rest of the period. ACE solar wind measurements indicated a gradually subsiding recurrent high-speed stream was in progress at the start of the period. A peak solar wind velocity of 615 km/sec was detected at the start of the period. Velocities gradually decreased during 02 - 06 June with a low of 327 km/sec detected at 06/0213. A solar
sector boundary crossing (away (+) to toward (-)) occurred at approximately 07/0900 UTC. The boundary crossing was associated with an increase in velocities (peak 551 km/sec at 07/1604 UTC), increased IMF Bt (peak 10 nT at 0856 UTC), and periods of mostly
southward IMF Bz (minimum -7 nT at 07/0652 UTC). Velocities began to gradually decrease after 08/1400 UTC and reached a low of 302 km/sec by the close of the period.

Forecast of Solar and Geomagnetic Activity
11 June - 07 July 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 19 - 23 June.

Geomagnetic field activity is expected to be at quiet levels during 11 - 15 June. Activity is expected to increase to unsettled levels during 16 - 19 June due a recurrent coronal hole high-speed wind stream. Activity is expected to decrease to quiet levels during 20 - 24 June. Activity is expected to increase to unsettled levels during 25 - 28 June due to a recurrent coronal hole high-speed wind stream. Activity is expected to decrease to quiet levels during 29 June - 02
July. Activity is expected to increase to unsettled levels during 03 - 05 July due to recurrence. Activity is expected to decrease to quiet levels during the last two days of the period.

Product: 27-day Space Weather Outlook Table 27DO.txt
:Issued: 2008 Jun 10 2053 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 Jun 10
# UTC Radio Flux Planetary Largest
# Date 10.7 cm A Index Kp Index
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 5 2
2008 Jun 16 70 8 3
2008 Jun 17 70 10 3
2008 Jun 18 70 8 3
2008 Jun 19 68 8 3
2008 Jun 20 68 5 2
2008 Jun 21 68 5 2
2008 Jun 22 68 5 2
2008 Jun 23 68 5 2
2008 Jun 24 68 5 2
2008 Jun 25 68 8 3
2008 Jun 26 67 10 3
2008 Jun 27 67 8 3
2008 Jun 28 67 8 3
2008 Jun 29 67 5 2
2008 Jun 30 66 5 2
2008 Jul 01 66 5 2
2008 Jul 02 66 5 2
2008 Jul 03 66 8 3
2008 Jul 04 66 10 3
2008 Jul 05 66 8 3
2008 Jul 06 66 5 2
2008 Jul 07 68 5 2
(NOAA)