[Ips-dhfpr] SWS Daily HF Prop Report - 20 May 21 issued 2356 UT on 20 May 2021
rwc
rwc at ips.gov.au
Fri May 21 09:56:33 EST 2021
SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/20 MAY 2021 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (20 MAY)
Date T index Conditions
20 May 24 Normal
Flares: none.
MUFs:
Cocos Island Region:
No data available.
Niue Island Region:
Depressed by 15% during local day.
Near predicted monthly values during local night.
Northern Australian Region:
Near predicted monthly values during local day.
Enhanced by 20% during local night.
Southern Australian Region:
Near predicted monthly values during local day.
Enhanced by 35% 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
Apr 12
May 21
Jun 24
2. FORECAST (21 MAY - 23 MAY)
Date T index Conditions MUFs
21 May 5 Normal-fair Near predicted monthly values/depressed
10 to 30%
22 May 5 Normal-fair Near predicted monthly values/depressed
10 to 30%
23 May 15 Normal-fair Near predicted monthly values
COMMENT: MUFs in the Australian region on UT day 20 May were
near predicted monthly values with some mild depressions in the
Niue Island region during the local day. There were also some
moderate enhancements in the Australian region during the local
night. MUFs are expected to be mostly near predicted monthly
values with some mild to moderate depressions on UT days 21-22
May. Then mostly normal HF propagation conditions are expected
on UT day 23 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
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