[Ips-dhfpr] SWS Daily HF Prop Report - 18 November 18 issued 2350 UT on 18 Nov 2018 [SEC=UNCLASSIFIED]
rwc at ips.gov.au
Mon Nov 19 10:50:22 EST 2018
SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/18 NOVEMBER 2018 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (18 NOVEMBER)
Date T index Conditions
18 Nov -31 Normal
Cocos Island Region:
No data available.
Niue Island Region:
Depressed by 20% during local day.
Depressed by 20% during local night.
Northern Australian Region:
Mostly near predicted monthly values.
Southern Australian Region:
Depressed by 15% during local day.
Near predicted monthly values 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 (19 NOVEMBER - 21 NOVEMBER)
Date T index Conditions MUFs
19 Nov -35 Normal Depressed 10 to 30%/near predicted
20 Nov -35 Normal Depressed 10 to 30%/near predicted
21 Nov -35 Normal Depressed 10 to 30%/near predicted
COMMENT: SWS HF Communications Warning 16 was issued on 16 November
and is current for 17-19 Nov. HF conditions for the AUS/NZ region
during the last 24 hours saw MUFs depressions ranging between
10%-30% during local day and night for Equatorial regions. Northern
AUS and Southern AUS/NZ regions MUFs ranged from minor depressions
to near predicted monthly values during local day and night,
and Antarctic regions near predicted monthly values over the
UT day. Similar levels of depressed ionospheric support expected
for the next 3 days with minor to moderate MUF depressions across
all latitude bands due to continued very low levels of ionising
radiation from the Sun.
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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