[Ips-dhfpr] SWS Daily HF Prop Report - 20 January 18 issued 2330 UT on 20 Jan 2018 [SEC=UNCLASSIFIED]
Regional Warning Centre
rwc at ips.gov.au
Sun Jan 21 10:30:54 EST 2018
SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/20 JANUARY 2018 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (20 JANUARY)
Date T index Conditions
20 Jan -1 Normal
Niue Island Region:
Mostly near predicted monthly values.
Depressed by 20% after local dawn.
Northern Australian Region:
Depressed by 15% during local day.
Near predicted monthly values during local night.
Southern Australian Region:
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 (21 JANUARY - 23 JANUARY)
Date T index Conditions MUFs
21 Jan -4 Fair Near predicted monthly values/depressed
10 to 40%
22 Jan 0 Normal Near predicted monthly values
23 Jan -2 Fair Near predicted monthly values/depressed
10 to 30%
COMMENT: Mostly normal HF conditions were observed in the Aus/NZ
regions today (20 January) with some periods of minor MUF depressions
in the Northern parts of the region. Periods of Sporadic E blanketing
were also evident. Expected enhancements in geomagnetic activity
and continued very low levels of solar activity may result in
minor to significant MUF depressions in the region on 21 and
23 January. HF conditions may be more normal on 22 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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