[Ips-dhfpr] SWS Daily HF Prop Report - 31 December 21 issued 2331 UT on 31 Dec 2021
Regional Warning Centre
rwc at ips.gov.au
Sat Jan 1 10:31:06 EST 2022
SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/31 DECEMBER 2021 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (31 DECEMBER)
Date T index Conditions
31 Dec 46 Normal
Flares Max Fadeout Freq. Sectors
C9.0 0658UT probable lower Mid East/Indian
MUFs:
Cocos Island Region:
Near predicted monthly values during local day.
Enhanced by 25% during local night.
Niue Island Region:
Enhanced by 15% during local day.
Near predicted monthly values during local night.
Northern Australian Region:
Near predicted monthly values during local day.
Enhanced by 15% 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
Nov 3
Dec 33
Jan 36
2. FORECAST (01 JANUARY - 03 JANUARY)
Date T index Conditions MUFs
01 Jan 40 Normal Near predicted monthly values
02 Jan 40 Normal Near predicted monthly values
03 Jan 35 Normal Near predicted monthly values
COMMENT: SWS SWF HF Communications Warning 44 was issued on 29
December and is current for 30 Dec to 1 Jan. MUFs in the Australian
region on UT day 31 December were near predicted monthly values
to 25% enhanced. MUFs are expected to be near predicted monthly
values to about 15% enhanced on 01 to 03 January. There is a
chance for isolated minor fadeouts on 01 January.
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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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