[Ips-dhfpr] SWS Daily HF Prop Report - 25 May 22 issued 2330 UT on 25 May 2022 [SEC=OFFICIAL]
Regional Warning Centre
rwc at ips.gov.au
Thu May 26 09:30:49 EST 2022
SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/25 MAY 2022 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (25 MAY)
Date T index Conditions
25 May 82 Normal
Flares Max Fadeout Freq. Sectors
M1.3 1824UT possible lower East Pacific/
North American
MUFs:
Cocos Island Region:
Mostly near predicted monthly values.
Enhanced by 25% after local dawn.
Niue Island Region:
Enhanced by 30% during local day.
Near predicted monthly values during local night.
Enhanced by 25% after local dawn.
Northern Australian Region:
Enhanced by 25% during local day.
Near predicted monthly values during local night.
Enhanced by 20% after local dawn.
Southern Australian Region:
Enhanced by 20% during local day.
Near predicted monthly values during local night.
Enhanced by 20% after local dawn.
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 77
May 51
Jun 54
2. FORECAST (26 MAY - 28 MAY)
Date T index Conditions MUFs
26 May 80 Normal Near to 25% above predicted
monthly values
27 May 80 Normal-fair Near to 25% above predicted
monthly values
28 May 80 Normal Near to 25% above predicted
monthly values
COMMENT: Maximum usable frequencies (MUFs) on UT day 25-May were
near monthly predicted values to moderately enhanced. Spread-F
was observed at Hobart during 1200-2100UT. MUFs are expected
to be mostly near monthly predicted values to moderately enhanced
during 26-28 May. Shortwave fadeouts are possible during this
period.
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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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