[Ips-dhfpr] SWS Daily HF Prop Report - 23 May 22 issued 2330 UT on 23 May 2022 [SEC=OFFICIAL]
Regional Warning Centre
rwc at ips.gov.au
Tue May 24 09:30:59 EST 2022
SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/23 MAY 2022 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (23 MAY)
Date T index Conditions
23 May 84 Normal
Flares: none.
MUFs:
Cocos Island Region:
Enhanced by 35% during local day.
Near predicted monthly values during local night.
Enhanced by 20% after local dawn.
Niue Island Region:
Enhanced by 30% during local day.
Enhanced by 35% during local night.
Enhanced by 20% after local dawn.
Northern Australian Region:
Enhanced by 15% during local day.
Near predicted monthly values during local night.
Enhanced by 25% after local dawn.
Southern Australian Region:
Enhanced by 20% during local day.
Near predicted monthly values during local night.
Enhanced by 25% after local dawn.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Enhanced by 15% over the UT day.
PCA Event : No event.
Monthly T index:
Month T index
Apr 77
May 51
Jun 54
2. FORECAST (24 MAY - 26 MAY)
Date T index Conditions MUFs
24 May 85 Normal Near to 20% above predicted
monthly values
25 May 85 Normal Near to 20% above predicted
monthly values
26 May 85 Normal Near to 20% above predicted
monthly values
COMMENT: SWS SWF HF Communications Warning 46 was issued on 22
May and is current for 23-25 May. Maximum usable frequencies
(MUFs) on UT day 23-May were near monthly predicted values to
moderately enhanced. Spread-F was observed at Hobart during 1300-2100UT.
MUFs are expected to be mostly near monthly predicted values
to moderately enhanced during 24-26 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
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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