[Ips-dhfpr] ASWFC Daily HF Prop Report - 21 August 22 issued 2330 UT on 21 Aug 2022 [SEC=OFFICIAL]
Regional Warning Centre
rwc at ips.gov.au
Mon Aug 22 09:30:57 EST 2022
SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/21 AUGUST 2022
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (21 AUGUST)
Date T index Conditions
21 Aug 44 Fair
Flares: none.
MUFs:
Cocos Island Region:
Near predicted monthly values during local day.
Depressed by 30% during local night.
Niue Island Region:
Depressed by 15% during local day.
Depressed by 20% during local night.
Northern Australian Region:
Near predicted monthly values during local day.
Depressed by 20% during local night.
Southern Australian Region:
Depressed by 15% during local day.
Depressed by 15% during local night.
Depressed by 20% after local dawn.
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 65
Aug 67
Sep 68
2. FORECAST (22 AUGUST - 24 AUGUST)
Date T index Conditions MUFs
22 Aug 45 Fair Depressed 15%/near predicted
monthly values
23 Aug 45 Normal Depressed 15%/near predicted
monthly values
24 Aug 45 Normal Depressed 15%/near predicted
monthly values
COMMENT: Maximum usable frequencies (MUFs) on UT day 21-Aug were
mostly near predicted monthly values to 20% depressed. Spread-F
and sporadic-E were observed during local night in the Australian
region. Regional MUFs are expected to be mostly near predicted
monthly values to 15% depressed over 22-24 Aug with continued
degradation during local night hours.
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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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