[Ips-dhfpr] SWS Daily HF Prop Report - 17 May 21 issued 2344 UT on 17 May 2021
rwc at ips.gov.au
Tue May 18 09:44:06 EST 2021
SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/17 MAY 2021 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (17 MAY)
Date T index Conditions
17 May 15 Normal
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.
Southern Australian Region:
Near predicted monthly values during local day.
Enhanced by 25% 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
2. FORECAST (18 MAY - 20 MAY)
Date T index Conditions MUFs
18 May 15 Normal-fair Near predicted monthly values
19 May 5 Normal-fair Near predicted monthly values/depressed
10 to 30%
20 May 5 Normal-fair Near predicted monthly values/depressed
10 to 30%
COMMENT: MUFs in the Australian region on UT day 17 May were
near predicted monthly values with some mild depressions in the
Niue Island Region occurring during the local day. There were
also some moderate enhancements in the Southern Australian region
during the local night. MUFs are expected to be near predicted
monthly values on UT days 18-20 May with some possible mild to
moderate depressions due to the expected increase in geomagnetic
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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