[Ips-dhfpr] SWS Daily HF Prop Report - 19 August 21 issued 2330 UT on 19 Aug 2021
Regional Warning Centre
rwc at ips.gov.au
Fri Aug 20 09:30:58 EST 2021
SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/19 AUGUST 2021 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (19 AUGUST)
Date T index Conditions
19 Aug 16 Normal
Flares: none.
MUFs:
Cocos Island Region:
Depressed by 20% during local day.
Depressed by 30% during local night.
Depressed by 20% after local dawn.
Niue Island Region:
No data available.
Northern Australian Region:
Mostly near predicted monthly values at
Townsville. Depressed to 30% at Darwin 01-07 UT
and 20-21 UT.
Southern Australian Region:
Near predicted monthly values.
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
Jul 17
Aug 25
Sep 28
2. FORECAST (20 AUGUST - 22 AUGUST)
Date T index Conditions MUFs
20 Aug 15 Normal Near predicted monthly values
to 20% depressed.
21 Aug 20 Normal Near predicted monthly values
22 Aug 15 Normal Near predicted monthly values
COMMENT: MUFs in the Australian region on UT day 19 August were
near predicted monthly values to mildly depressed during local
day and early evening. Night MUFs at times were enhanced. Some
night spread F observed at mid latitudes. MUFs in the Australian
region on 20-22 August are expected to be near predicted monthly
values to 20% depressed with depressions most likely during daytime
and early evening.
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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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