[Ips-dhfpr] SWS Daily HF Prop Report - 14 December 21 issued 2331 UT on 14 Dec 2021
Regional Warning Centre
rwc at ips.gov.au
Wed Dec 15 10:31:18 EST 2021
SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/14 DECEMBER 2021 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (14 DECEMBER)
Date T index Conditions
14 Dec 9 Normal
Flares: none.
MUFs:
Cocos Island Region:
Near predicted monthly values during local day.
Depressed by 20% during local night.
Depressed by 20% after local dawn.
Niue Island Region:
Depressed by 15% during local day.
Near predicted monthly values during local night.
Depressed by 25% after local dawn.
Northern Australian Region:
Mostly near predicted monthly values.
Southern Australian Region:
Mostly 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 (15 DECEMBER - 17 DECEMBER)
Date T index Conditions MUFs
15 Dec 15 Normal Near predicted monthly values
16 Dec 20 Normal Near predicted monthly values
17 Dec 25 Normal Near predicted monthly values
COMMENT: SWS HF Communications Warning 39 was issued on 12 December
and is current for 13-15 Dec. MUFs in the Australian region on
UT day 14 December were mostly near predicted monthly values,
with occasional mild depressions at some locations in the region.
Mostly near predicted monthly values are expected on 15-17 December,
with a chance of mild depressions in some locations on 15-Dec.
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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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