[Ips-dhfpr] SWS Daily HF Prop Report - 20 November 18 issued 2330 UT on 20 Nov 2018 [SEC=UNCLASSIFIED]
Regional Warning Centre
rwc at ips.gov.au
Wed Nov 21 10:30:19 EST 2018
SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/20 NOVEMBER 2018 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (20 NOVEMBER)
Date T index Conditions
20 Nov -25 Normal-fair
Cocos Island Region:
No data available.
Niue Island Region:
Depressed by 35% during local day.
Near predicted monthly values during local night.
Northern Australian Region:
Near predicted monthly values.
Southern Australian Region:
Depressed by 15% during local day.
Depressed by 20% during local night.
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
2. FORECAST (21 NOVEMBER - 23 NOVEMBER)
Date T index Conditions MUFs
21 Nov -30 Normal-fair Depressed 10 to 30%/near predicted
22 Nov -30 Normal-fair Near predicted monthly values/depressed
10 to 30%
23 Nov -30 Normal-fair Near predicted monthly values/depressed
10 to 30%
COMMENT: SWS HF Communications Warning 17 was issued on 20 November
and is current for 20-22 Nov. Northern AUS and Southern AUS/NZ
regions MUFs ranged from minor depressions to near predicted
monthly values during 20 Nov. MUFs depressions ranging between
10%-40% during local day for Niue Island. Similar levels of ionospheric
support expected for the next 3 days due to continued very low
levels of ionising radiation from the Sun and current weak geomagnetic
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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