[Ips-dhfpr] SWS Daily HF Prop Report - 27 October 18 issued 2330 UT on 27 Oct 2018 [SEC=UNCLASSIFIED]
Regional Warning Centre
rwc at ips.gov.au
Sun Oct 28 10:30:21 EST 2018
SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/27 OCTOBER 2018 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (27 OCTOBER)
Date T index Conditions
27 Oct -33 Normal-fair
Flares: none.
MUFs:
Niue Island Region:
Near predicted monthly values during local day.
Depressed by 30% during local night.
Depressed by 20% after local dawn.
Northern Australian Region:
Depressed by 20% during local day.
Depressed by 30% during local night.
Southern Australian Region:
Depressed by 20% 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
Sep 0
Oct -5
Nov -5
2. FORECAST (28 OCTOBER - 30 OCTOBER)
Date T index Conditions MUFs
28 Oct -25 Normal-fair Near predicted monthly values/depressed
10 to 30%
29 Oct -30 Normal-fair Near predicted monthly values/depressed
10 to 40%
30 Oct -30 Normal-fair Near predicted monthly values/depressed
10 to 40%
COMMENT: MUFs over the Australian regions were mainly from near
monthly predicted levels to depressed by around 30% on UT day
27 October. Very low levels of ionisation radiation from the
Sun seems to be the main reason for these MUF depressions. Minor
to moderate degradations in HF conditions and MUF depressions
in the Aus/NZ regions may be expected for the next three days
(UT days 28 to 30 October).
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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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