[Ips-dhfpr] SWS Daily HF Prop Report - 07 November 18 issued 2330 UT on 07 Nov 2018 [SEC=UNCLASSIFIED]
Regional Warning Centre
rwc at ips.gov.au
Thu Nov 8 10:30:20 EST 2018
SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/07 NOVEMBER 2018 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (07 NOVEMBER)
Date T index Conditions
07 Nov -34 Normal
Niue Island Region:
Depressed by 25% during local day.
Near predicted monthly values during local night.
Northern Australian Region:
Near predicted monthly values during local day.
Depressed by 15% during local night.
Southern Australian Region:
Depressed by 20% during local day.
Depressed by 20% during local night.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Depressed by 15% over the UT day.
PCA Event : No event.
Monthly T index:
Month T index
2. FORECAST (08 NOVEMBER - 10 NOVEMBER)
Date T index Conditions MUFs
08 Nov -20 Normal Near predicted monthly values/depressed
5 to 20%
09 Nov -20 Normal-fair Near predicted monthly values/depressed
5 to 20%
10 Nov -20 Normal Near predicted monthly values/depressed
10 to 30%
COMMENT: SWS HF Communications Warning 13 was issued on 7 November
and is current for 8-10 Nov. MUFs were depressed by 15-20% over
much of the Australian and Antarctic regions during UT day, 07
November, due to continued very low levels of ionising radiation.
Expect near predicted MUFs to 20% depressions on 08-09 November
due to continued very low levels of ionising radiation. On 10
November expect deeper depressions to 30% and some degradation
in HF communication induced by an increase in geomagnetic activity
on 09 November leading to ionospheric storming.
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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