[Ips-dhfpr] SWS Daily HF Prop Report - 08 November 18 issued 2308 UT on 08 Nov 2018 [SEC=UNCLASSIFIED]
rwc
rwc at ips.gov.au
Fri Nov 9 10:08:56 EST 2018
SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/08 NOVEMBER 2018 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (08 NOVEMBER)
Date T index Conditions
08 Nov -33 Normal
Flares: none.
MUFs:
Niue Island Region:
Depressed by 20% 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 25% during local night.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Depressed by 20% over the UT day.
PCA Event : No event.
Monthly T index:
Month T index
Oct -17
Nov -7
Dec -7
2. FORECAST (09 NOVEMBER - 11 NOVEMBER)
Date T index Conditions MUFs
09 Nov -20 Normal-fair Near predicted monthly values/depressed
5 to 20%
10 Nov -30 Normal Near predicted monthly values/depressed
10 to 30%
11 Nov -30 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 15-25% over
much of the Australian and Antarctic regions during UT day, 08
November, due to continued very low levels of ionising radiation.
Expect near predicted MUFs to 20% depressions today due to continued
very low levels of ionising radiation. On 10-11 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.
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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
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