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Wednesday, January 23, 2008

Weekly Radio Propagation Forecast Bulletins

Product: Weekly Highlights and Forecasts
:Issued: 2008 Jan 22 1923 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
14 - 20 January 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 reached high levels during each day of the period.

The geomagnetic field was unsettled to active on 14 January with minor to major storm periods detected at high latitudes. Activity decreased to quiet to unsettled levels at mid latitudes during the remainder of the period. However, active to minor storm periods were detected at high latitudes during 15 - 19 January. A brief major storm period was also detected at high latitudes on 19 January. ACE solar wind observations indicated a recurrent coronal hole high-speed stream was in progress during the period. Solar wind velocities were variable throughout the period with a range of 533 - 763 km/sec. IMF Bz was also variable throughout the period in the + 6 nT range. IMF Bt readings were elevated during the period with a peak of 8.0 nT observed at 14/0406 UTC.

Forecast of Solar and Geomagnetic Activity
23 January - 18 February 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 23 - 27 January and 03 - 18 February.

The geomagnetic field is expected to be quiet during 23 - 31 January. Activity is expected to increase to unsettled to active levels on 01 - 02 February due to the onset of a recurrent coronal hole high-speed stream. Quiet to unsettled conditions are expected during 03 - 04 February as the high-speed stream gradually subsides. Quiet conditions are expected during 05 - 08 February. Activity is expected to increase to unsettled to active levels during 09 - 10 conditions are expected during 11 - 13 February as coronal hole effects subside. Activity is expected to decrease to quiet levels during the rest of the period.

Product: 27-day Space Weather Outlook Table 27DO.txt
:Issued: 2008 Jan 22 1923 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 Jan 22
#
# UTC Radio Flux Planetary Largest
# Date 10.7 cm A Index Kp Index
2008 Jan 23 70 5 2
2008 Jan 24 70 5 2
2008 Jan 25 75 5 2
2008 Jan 26 75 5 2
2008 Jan 27 75 5 2
2008 Jan 28 80 5 2
2008 Jan 29 80 5 2
2008 Jan 30 80 5 2
2008 Jan 31 80 5 2
2008 Feb 01 80 15 4
2008 Feb 02 80 12 4
2008 Feb 03 80 10 3
2008 Feb 04 75 10 3
2008 Feb 05 75 5 2
2008 Feb 06 75 5 2
2008 Feb 07 75 5 2
2008 Feb 08 75 5 2
2008 Feb 09 75 15 4
2008 Feb 10 75 15 4
2008 Feb 11 75 10 3
2008 Feb 12 75 10 3
2008 Feb 13 75 8 3
2008 Feb 14 70 5 2
2008 Feb 15 70 5 2
2008 Feb 16 70 5 2
2008 Feb 17 70 5 2
2008 Feb 18 70 5 2
(NOAA)