[ips-sf] IPS Summary Forecast for 20 March - issued 2332UT/19-Mar-2016 [SEC=UNCLASSIFIED]

[rwc]

Solar activity has been at very low levels on 19 March. Solar wind
speed stayed mostly between 400 and 450 km/s during this period. Very
low levels of solar activity, with some possibility of isolated C
class activity, may be expected from 20 to 22 March. Due to sustained
periods of negative IMF Bz and relatively stronger solar wind stream,
some above expectation rises (up to minor storm levels) in geomagnetic
activity levels were observed on 19 March at some mid and high
latitude locations. Solar wind stream is still going strong. If Bz
again goes negative for sufficiently long time, geomagnetic activity
may again show some rises to active levels on 20 March. Else, mostly
quiet to unsettled conditions on 20 March and mostly quiet conditions
on 21 and 22 March may be expected. Varied HF conditions were observed
in the low and mid latitude regions on 19 March. These regions
recorded periods of minor to moderate enhancements as well as periods
of depressions in MUFs. Mostly normal HF conditions may be expected
for the next three days (20 to 22 March).

Space Weather Services              email: asfc at ips.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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