NAVAREA TWO 199/12
SOLAR ACTIVITY
1. STRONG SOLAR RADIATION STORM IN PROGRESS UNTIL 052359 UTC JUL.
RADIO AND SATELLITE NAVIGATION SERVICES MAY BE AFFECTED.
MARINERS SHOULD CHECK THEIR POSITION USING ALTERNATE MEANS AVAILABLE.
2. CANCEL THIS MESSAGE 060001 UTC JUL 12.
Number: 167/12
Type: NAVAREA I
Date: 022235 UTC Jul 12
Warning:
SOLAR ACTIVITY.
1.Strong solar radiation storm in progress until 052359 UTC Jul. Radio
and satellite navigation services may be affected. Mariners should
check their position using all alternate means available. 2.Cancel
this message 060100 UTC Jul 12.
The alternative means is the NEW 500 KHZ NETWORK
http://olivier.marsan.free.fr/N5NTW/index.html