[Ips-dhfpr] SWS Daily HF Prop Report - 15 April 22 issued 2331 UT on 15 Apr 2022 [SEC=OFFICIAL]
Regional Warning Centre
rwc at ips.gov.au
Sat Apr 16 09:31:01 EST 2022
SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/15 APRIL 2022 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (15 APRIL)
Date T index Conditions
15 Apr 45 Fair
Flares Max Fadeout Freq. Sectors
M1.2 1101UT possible lower European
M1.9 1359UT possible lower European
MUFs:
Cocos Island Region:
Enhanced by 25% during local day.
Near predicted monthly values during local night.
Enhanced by 25% after local dawn.
Niue Island Region:
Enhanced by 15% during local day.
Near predicted monthly values during local night.
Northern Australian Region:
Near predicted monthly values.
Southern Australian Region:
Depressed by 30% during local day.
Near predicted monthly values during local night.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Depressed by 25% over the UT day.
PCA Event : No event.
Monthly T index:
Month T index
Mar 64
Apr 46
May 49
2. FORECAST (16 APRIL - 18 APRIL)
Date T index Conditions MUFs
16 Apr 60 Normal-fair Near to 20% above predicted
monthly values
17 Apr 60 Normal Near to 20% above predicted
monthly values
18 Apr 65 Normal Near to 20% above predicted
monthly values
COMMENT: Maximum usable frequencies (MUFs) on UT day 15 Apr were
near monthly predicted values to 20% enhanced at lower latitudes.
Norfolk Is., Brisbane and more southern sites were mostly depressed,
at times to 35%. MUFs are expected to be near predicted monthly
values to enhanced 16-18 Apr. Mid to high latitudes may experience
some minor degradations in conditions on 16-18 Apr.
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For an explanation of some of the terms in this report, go to
https://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
tel: +61 2 9213 8010 fax: +61 2 9213 8060
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