[Ips-dhfpr] SWS Daily HF Prop Report - 17 November 18 issued 2333 UT on 17 Nov 2018 [SEC=UNCLASSIFIED]
rwc at ips.gov.au
Sun Nov 18 10:33:36 EST 2018
SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/17 NOVEMBER 2018 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (17 NOVEMBER)
Date T index Conditions
17 Nov -40 Normal
Cocos Island Region:
No data available.
Niue Island Region:
Depressed by 15% during local day.
Depressed by 35% during local night.
Northern Australian Region:
Depressed by 30% during local day.
Depressed by 20% during local night.
Depressed by 25% after local dawn.
Southern Australian Region:
Depressed by 20% during local day.
Depressed by 15% 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 (18 NOVEMBER - 20 NOVEMBER)
Date T index Conditions MUFs
18 Nov -35 Normal Depressed 10%-30%/near predicted
19 Nov -40 Normal Depressed 10 to 30%/near predicted
20 Nov -40 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 for all latitudes and an isolated enhanced
period for Equatorial regions. MUFs ranged from minor depressions
to near predicted monthly values during local night for Equatorial/Northern
AUS regions with Southern AUS/NZ and Antarctic regions near predicted
monthly values and isolated enhanced periods. 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
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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