[Ips-dhfpr] SWS Daily HF Prop Report - 25 April 18 issued 2330 UT on 25 Apr 2018 [SEC=UNCLASSIFIED]
Regional Warning Centre
rwc at ips.gov.au
Thu Apr 26 09:30:30 EST 2018
SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/25 APRIL 2018 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (25 APRIL)
Date T index Conditions
25 Apr 9 Normal
Niue Island Region:
Depressed by 20% during local day.
Near predicted monthly values during local night.
Northern Australian Region:
Near predicted monthly values.
Southern Australian Region:
Near predicted monthly values during local day.
Enhanced by 30% during local night.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Enhanced by 25% over the UT day.
PCA Event : No event.
Monthly T index:
Month T index
2. FORECAST (26 APRIL - 28 APRIL)
Date T index Conditions MUFs
26 Apr 4 Normal-fair Near predicted monthly values/depressed
10 to 20%
27 Apr 4 Normal-fair Near predicted monthly values/depressed
10 to 20%
28 Apr 6 Normal Near predicted monthly values
COMMENT: MUFs were mainly near predicted monthly values over
most of the Aus/NZ region with periods of minor depressions in
the northern areas on UT day 25 April. Periods of minor MUF enhancements
were recorded in some southern areas on this day. Minor to moderate
MUF depressions and degradations in HF conditions in the Aus/NZ
region may be expected on 26 and 27 April. HF conditions may
be expected to return to normal levels in the region on 28 April.
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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