[Ips-dhfpr] SWS Daily HF Prop Report - 12 May 21 issued 2330 UT on 12 May 2021
Regional Warning Centre
rwc at ips.gov.au
Thu May 13 09:30:11 EST 2021
SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/12 MAY 2021 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (12 MAY)
Date T index Conditions
12 May 10 Normal-fair
Flares: none.
MUFs:
Cocos Island Region:
No data available.
Niue Island Region:
Depressed by 20% during local day.
Near predicted monthly values during local night.
Northern Australian Region:
Depressed by 20% during local day.
Near predicted monthly values during local night.
Southern Australian Region:
Depressed by 15% during local day.
Enhanced by 30% during local night.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Enhanced by 30% over the UT day.
PCA Event : No event.
Monthly T index:
Month T index
Apr 12
May 21
Jun 24
2. FORECAST (13 MAY - 15 MAY)
Date T index Conditions MUFs
13 May 0 Normal-fair Depressed 15%/near predicted
monthly values
14 May 5 Normal-fair Near predicted monthly values
15 May 10 Normal Near predicted monthly values
COMMENT: MUFs in the Australian region on UT day 12 May were
mostly near predicted monthly values with some mild to moderate
depressions during the local day. There were also some moderate
enhancements in the South Australian during the local night and
Antarctic regions. In the Australian region, MUFs on UT day 13
May are expected to be mostly near predicted monthly values during
the local day, with some mild to moderate depressions expected
during the local night. The forecast depressions are in response
to the recent disturbed conditions associated with the 9 May
CME. Then mostly normal HF propagation conditions are expected
on UT days 14-15 May.
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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
Bureau of Meteorology
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Haymarket NSW 1240 AUSTRALIA FTP: ftp://ftp-out.sws.bom.gov.au
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