[Ips-dhfpr] SWS Daily HF Prop Report - 25 September 21 issued 2331 UT on 25 Sep 2021
Regional Warning Centre
rwc at ips.gov.au
Sun Sep 26 09:31:00 EST 2021
SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/25 SEPTEMBER 2021 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (25 SEPTEMBER)
Date T index Conditions
25 Sep 37 Normal
Flares: none.
MUFs:
Cocos Island Region:
Enhanced by 30% during local day.
Enhanced by 35% during local night.
Niue Island Region:
No data available.
Northern Australian Region:
Enhanced 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
Aug 14
Sep 27
Oct 30
2. FORECAST (26 SEPTEMBER - 28 SEPTEMBER)
Date T index Conditions MUFs
26 Sep 20 Normal-fair Near predicted monthly values/depressed
10 to 20%
27 Sep 15 Fair Near predicted monthly values/depressed
10 to 20%
28 Sep 20 Normal-fair Near predicted monthly values/depressed
10 to 20%
COMMENT: MUFs in the Australian region on UT day 25 September
were mostly near predicted monthly values, with some enhancements
in the Cocos Island region over the UT day and also in the Northern
Australian region during the local day. Some mild MUF depressions
are possible on UT days 26-28 September, due to the expected
increase in geomagnetic activity.
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For an explanation of some of the terms in this report, go to
https://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
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Haymarket NSW 1240 AUSTRALIA FTP: ftp://ftp-out.sws.bom.gov.au
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