[Ips-dhfpr] SWS Daily HF Prop Report - 16 April 21 issued 2330 UT on 16 Apr 2021
Regional Warning Centre
rwc at ips.gov.au
Sat Apr 17 09:30:13 EST 2021
SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/16 APRIL 2021 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (16 APRIL)
Date T index Conditions
16 Apr 14 Normal
Flares: none.
MUFs:
Cocos Island Region:
No data available.
Niue Island Region:
No data available.
Northern Australian Region:
Depressed by 15% during local day.
Depressed by 15% during local night.
Southern Australian Region:
Mostly near predicted monthly values.
Depressed by 25% after local dawn.
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
Mar 9
Apr 19
May 23
2. FORECAST (17 APRIL - 19 APRIL)
Date T index Conditions MUFs
17 Apr 0 Normal-fair Near predicted monthly values/depressed
10 to 30%
18 Apr 0 Normal-fair Near predicted monthly values/depressed
10 to 30%
19 Apr 4 Normal Near predicted monthly values
COMMENT: SWS HF Communications Warning 11 was issued on 16 April
and is current for 17-18 Apr. MUFs over the Australian regions
were mostly near predicted monthly levels on UT day 16 April;
mild depressions were observed in the Northern Australian region
and moderate depressions were seen in the Southern Australian
region after local dawn. Mild to moderate MUFs depressions are
likely for 17-18 April due to the observed increase in geomagnetic
activity.
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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
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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