Product: Weekly Highlights and Forecasts:Issued: 2009 Jun 30 2121 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
22 - 28 June 2009
Solar activity was very low. New cycle polarity Region 1022 (S27, L=045, class/area Bxo/020 on 21 June) was numbered on 21 June. Region 1022 remained inactive and decayed to spotless plage early on 23 June. Region 1023 (S23, L=020, class/area Cso/040 on 24 June) was
numbered on 22 June. Region 1023 was most likely the source of A-class x-ray activity occurring during this period. Region 1023 gradually decayed to spotless plage on 25 June.
No proton events were observed at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit was at normal levels during the period.
Geomagnetic field activity was at predominantly quiet levels during 22 - 23 June. Field activity increased to quiet to active conditions late on 23 June and persisted through 24 June due to a coronal hole high-speed stream (CH HSS). During this period, an isolated period of minor storm levels was observed at high latitudes. Solar wind densities at ACE began to rise at 22/2333Z, increasing from 1 p/cc to a maximum of approximately 17 p/cc at 23/2045Z. ACE solar wind
observations showed a period of sustained southward IMF Bz between 23/1912Z and 24/2234Z (minimum of -20 nT / maximum of +20 nT). Solar wind velocities increased from 247 km/s (at 24/0656Z) to a maximum of 508 km/s (at 24/2112Z). Velocities gradually decreased to 366 km/s at 27/1034Z. Velocities increased again to 450 km/s at 28/2050Z. Bz reached a minimum of -12 nT at 28/1917Z, and the density reached a maximum of 28 p/cc at 28/1603Z. Geomagnetic field activity decreased to predominantly quiet conditions during 25 - 28 June. Isolated unsettled to active periods were observed late on 28 June due to a CH HSS.
Forecast of Solar and Geomagnetic Activity
01 - 27 July 2009
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 be at normal flux levels.
Geomagnetic field activity is expected to be at quiet levels, with isolated unsettled conditions possible during 01 - 02 July due to the continuing effects from the current CH HSS. Predominantly quiet conditions are expected during 03 - 20 July. Quiet to unsettled
conditions, with isolated active periods at high latitudes, are expected on 21 July due to a recurrent CH HSS. Predominantly quiet conditions are expected during 22 - 24 July. Activity is expected to increase to quiet to isolated unsettled levels on 25 July. Predominantly quiet conditions are expected during 26-27 July.
Product: 27-day Space Weather Outlook Table 27DO.txt:Issued: 2009 Jun 30 2121 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 2009 Jun 30
#
# UTC Radio Flux Planetary Largest
# Date 10.7 cm A Index Kp Index
2009 Jul 01 70 8 3
2009 Jul 02 70 8 3
2009 Jul 03 70 5 2
2009 Jul 04 70 5 2
2009 Jul 05 70 5 2
2009 Jul 06 70 5 2
2009 Jul 07 70 5 2
2009 Jul 08 70 5 2
2009 Jul 09 70 5 2
2009 Jul 10 70 5 2
2009 Jul 11 69 5 2
2009 Jul 12 69 5 2
2009 Jul 13 68 5 2
2009 Jul 14 68 5 2
2009 Jul 15 68 5 2
2009 Jul 16 68 5 2
2009 Jul 17 68 5 2
2009 Jul 18 68 5 2
2009 Jul 19 68 5 2
2009 Jul 20 68 5 2
2009 Jul 21 68 10 4
2009 Jul 22 68 5 2
2009 Jul 23 68 5 2
2009 Jul 24 68 5 2
2009 Jul 25 68 8 3
2009 Jul 26 68 5 2
2009 Jul 27 68 5 2
(NOAA)
