[Ips-dhfpr] ASWFC Daily HF Prop Report - 20 October 23 issued 2330 UT on 20 Oct 2023 [SEC=OFFICIAL]
Regional Warning Centre
rwc at ips.gov.au
Sat Oct 21 10:30:16 EST 2023
SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/20 OCTOBER 2023
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (20 OCTOBER)
Date T index Conditions
20 Oct 106 Normal
Flares: none.
MUFs:
Cocos Island Region:
Near predicted monthly values during local day.
Enhanced by 20% during local night.
Enhanced by 20% after local dawn.
Niue Island Region:
Enhanced by 25% during local day.
Enhanced by 20% during local night.
Northern Australian Region:
Mostly near predicted monthly values.
Southern Australian Region:
Mostly near predicted monthly values.
Antarctic Region (Casey/Davis/Mawson):
Near predicted monthly values over the UT day.
PCA Event : No event.
Monthly T index:
Month T index
Sep 104
Oct 98
Nov 96
2. FORECAST (21 OCTOBER - 23 OCTOBER)
Date T index Conditions MUFs
21 Oct 120 Normal Near to 15% above predicted
monthly values
22 Oct 120 Normal-fair Near to 15% above predicted
monthly values
23 Oct 110 Normal-fair Near predicted monthly values
COMMENT: Maximum usable frequencies (MUFs) in the Australian
region on UT day 20-Oct were mostly near predicted monthly values.
Some spread-F was observed at Hobart during local dawn hours.
MUFs are expected to be near predicted monthly values to 15%
enhanced over 21-23 Oct.
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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.
Australian Space Weather Forecasting Centre
Bureau of Meteorology
ASWFC at bom.gov.au
www.bom.gov.au | www.sws.bom.gov.au
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