[Ips-dhfpr] SWS Daily HF Prop Report - 13 October 21 issued 2331 UT on 13 Oct 2021
Regional Warning Centre
rwc at ips.gov.au
Thu Oct 14 10:31:21 EST 2021
SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/13 OCTOBER 2021 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (13 OCTOBER)
Date T index Conditions
13 Oct 8 Fair
Flares: none.
MUFs:
Cocos Island Region:
Near predicted monthly values during local day.
Depressed by 15% during local night.
Niue Island Region:
No data.
Northern Australian Region:
Near predicted monthly values during local day.
Enhanced by 25% during local night.
Southern Australian Region:
Depressed by 20% during local day.
Depressed by 15% during local night.
Depressed by 30% after local dawn.
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
Sep 24
Oct 29
Nov 33
2. FORECAST (14 OCTOBER - 16 OCTOBER)
Date T index Conditions MUFs
14 Oct 10 Normal Near predicted monthly values
15 Oct 15 Normal Near predicted monthly values
16 Oct 20 Normal Near predicted monthly values
COMMENT: SWS HF Communications Warning 25 was issued on 12 October
and is current for 13-14 Oct. MUFs in the Australian region on
UT day 13 October were mostly near mildly depressed levels in
most regions. These mild depressions were the aftermath of the
recent disturbed conditions caused by the 9 October CME. MUFs
are likely to remain mildly depressed today 14 October. MUFs
are expected to gradually recover towards the monthly predicted
level from UT day 15 October.
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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
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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