NW7US Propagation Alert January 15, 2005
During the series of flares from solar sunspot region 0720, at 0614 UTC 15 January 2005, a strong solar flare and radio sweep event was observed. This indicates a full-halo coronal mass ejection (one that is headed directly toward Earth). The start time of this Type II burst was 0554 UTC 15 January 2005. The shock speed is estimated at 1300 km/s - this is a MAJOR SHOCK. An extremely strong Type IV event followed the Type II event. The sweep looks optically correlated with the flare from region 0720. (To see the sweep, browse to It is now expected that the start of January 16 will see strong geomagnetic storminess, increasing to MAJOR GEOMAGNETIC storminess, then declining late on January 17 to active levels. This could well be a major Aurora event, as well. *STRONGLY DEGRADED HF PROPAGATION CONDITIONS ARE EXPECTED* from 16 January through 17 January 2005. Additional details will be reported when available. http://prop.hfradio.org/ips_type2event-20050115.gif (IPS)) ---[Start Commercial]--------------------- World Radio TV Handbook 2005 is coming out. Preorder yours and support open communications for DXers: http://www.amazon.com/exec/obidos/ASIN/0823077942/hardcoredxcom ---[End Commercial]----------------------- ________________________________________ Hard-Core-DX mailing list Hard-Core-DX@hard-core-dx.com http://dallas.hard-core-dx.com/mailman/listinfo/hard-core-dx http://www.hard-core-dx.com/ _______________________________________________ THE INFORMATION IN THIS ARTICLE IS FREE. It may be copied, distributed and/or modified under the conditions set down in the Design Science License published by Michael Stutz at http://dsl.org/copyleft/dsl.txt
