[ips-sf] SWS Summary Forecast for 18 July - issued 2342UT/17-Jul-2016 [SEC=UNCLASSIFIED]

[rwc]

Solar activity was low during 17 July UT. Active Regions 2567 and 2565
produced C class X ray flares. A C7 flare is in progress at the time
of this report. Hydrogen alpha solar telescopes reveal a ribbon like
structure. AR 2567 will continue to produce C class flares and there
is a chance it will produce an M class flare today, 18 July. AR 2567
and 2565 are crossing the solar meridian today and the combined region
is very active in spacecraft Far Ultraviolet (FUV) and X ray images.
Any filament eruption or CME launched from this region during the next
3 days will likely impact Earth. The solar wind speed declined from
about 500 km/s to below 450 km/s during 17 July. A negative polarity
coronal hole may have a minor impact on Earth starting in about 2
days. Geomagnetic conditions were quiet during 17 July UT and they are
expected to be quiet today, 18 July. Conditions for HF radio wave
propagation are expected to be mildly depressed to near normal during
the next 2 days.

Space Weather Services              email: asfc at bom.gov.au
Bureau of Meteorology
PO Box 1386                         WWW: http://www.sws.bom.gov.au
Haymarket NSW 1240  AUSTRALIA       FTP: ftp://ftp-out.sws.bom.gov.au
tel: +61 2 9213 8010                fax: +61 2 9213 8060 

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