[Ips-dhfpr] SWS Daily HF Prop Report - 17 January 18 issued 2330 UT on 17 Jan 2018 [SEC=UNCLASSIFIED]
Regional Warning Centre
rwc at ips.gov.au
Thu Jan 18 10:30:27 EST 2018
SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/17 JANUARY 2018 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (17 JANUARY)
Date T index Conditions
17 Jan 4 Normal
Niue Island Region:
Enhanced by 20% during local day.
Enhanced by 20% during local night.
Northern Australian Region:
Depressed by 20% during local day.
Depressed by 20% during local night.
Southern Australian Region:
Mostly near predicted monthly values.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Near predicted monthly values over the UT day.
PCA Event : No event.
Monthly T index:
Month T index
2. FORECAST (18 JANUARY - 20 JANUARY)
Date T index Conditions MUFs
18 Jan 2 Normal Near predicted monthly values
19 Jan 2 Normal Near predicted monthly values
20 Jan 0 Normal-fair Near predicted monthly values/depressed
10 to 20%
COMMENT: HF conditions stayed mostly at normal levels in Australian
region with some periods of small MUF enhancements as well as
period of small MUF depressions in the Northern parts of the
region. Periods of Sporadic E blanketing were also evident. Mostly
normal HF conditions may be expected in the region for the next
two days (18 and 19 January) with some possibility of minor MUF
depressions as the solar activity is expected to stay at very
low levels during this period, which may result in the weakening
of ionising radiation. An expected rise in geomagnetic activity
on 20 January may also cause some MUF depressions in the region
on 20 January.
For an explanation of some of the terms in this report, go to
http://www.sws.bom.gov.au, and follow links to Educational->
Glossary on Solar Terrestrial Terms.
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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