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Tuesday, July 10, 2007

Shortwave propagation report July 11-August 6


Forecast of Solar and Geomagnetic Activity
11 July - 06 August 2007

Solar activity is expected to be at very low to low levels with isolated moderate activity possible through 20 July (the date when Region 963 will rotate around the solar west limb). Thereafter, through 03 August, activity is expected to be at mostly very low levels. Old Region 963 (S07, L=058) is due to return after 03 August, so levels are expected to increase to low, with isolated moderate activity possible.
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 16 - 17 July, 22 – 23 July, and on 03 August.

Geomagnetic field activity is expected to be at unsettled to active levels on 11 July due to a recurrent coronal hole high-speed stream. Quiet to unsettled conditions are expected during 12 - 17 July. An increase to quiet to active conditions is expected during 18 - 20 July with minor storm periods possible on 19 July due to another recurrent coronal hole high-speed stream. Mostly quiet conditions are expected during 21 - 30 July. Another recurrent coronal hole
high-speed stream is expected to rotate into a geoeffective position on 31 July, with unsettled to active levels expected. Field activity is expected to be mostly quiet to unsettled from 01 - 06
August.

Product: 27-day Space Weather Outlook Table 27DO.txt
:Issued: 2007 Jul 10 1853 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Environment Center
# Product description and SEC contact on the Web
# http://www.sec.noaa.gov/wwire.html
#
# 27-day Space Weather Outlook Table
# Issued 2007 Jul 10
#
# UTC Radio Flux Planetary Largest
# Date 10.7 cm A Index Kp Index
2007 Jul 11 80 15 4
2007 Jul 12 80 8 3
2007 Jul 13 85 5 2
2007 Jul 14 85 5 2
2007 Jul 15 85 8 3
2007 Jul 16 80 8 3
2007 Jul 17 80 8 3
2007 Jul 18 80 10 3
2007 Jul 19 80 15 4
2007 Jul 20 80 10 3
2007 Jul 21 75 5 2
2007 Jul 22 75 5 2
2007 Jul 23 70 5 2
2007 Jul 24 70 5 2
2007 Jul 25 70 5 2
2007 Jul 26 70 10 3
2007 Jul 27 70 5 2
2007 Jul 28 70 5 2
2007 Jul 29 70 5 2
2007 Jul 30 70 5 2
2007 Jul 31 70 15 4
2007 Aug 01 70 5 2
2007 Aug 02 70 5 2
2007 Aug 03 75 5 2
2007 Aug 04 80 5 2
2007 Aug 05 80 5 2
2007 Aug 06 80 10 3
(Source: NOAA)