[Ips-dhfpr] SWS Daily HF Prop Report - 25 May 21 issued 2330 UT on 25 May 2021
Regional Warning Centre
rwc at ips.gov.au
Wed May 26 09:30:12 EST 2021
SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/25 MAY 2021 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 8 Normal
Cocos Island Region:
No data available.
Niue Island Region:
No data available.
Northern Australian Region:
Depressed by 15% during local day.
Near predicted monthly values during local night.
Southern Australian Region:
Near predicted monthly values.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Enhanced by 30% over the UT day.
PCA Event : No event.
Monthly T index:
Month T index
2. FORECAST (26 MAY - 28 MAY)
Date T index Conditions MUFs
26 May 5 Normal-fair Near predicted monthly values
27 May 0 Fair Near predicted monthly values/depressed
10 to 30%
28 May 10 Normal-fair Near predicted monthly values/depressed
10 to 20%
COMMENT: SWS HF Communications Warning 17 was issued on 25 May
and is current for 26-27 May. MUFs in the Australian region on
UT day 25 May were mostly near predicted monthly values with
some minor depressions in the Northern Australian region during
the local day. Mostly normal MUFs can be expected on UT day 26
May with some possible enhancements during the first half of
the UT day followed by possible minor to moderate depressions.
Moderate to significant MUF depressions could occur on UT day
27 May due to expected increase in geomagnetic activity with
possible slow recovery in MUFs on 28 May as the geomagnetic activity
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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