[Ips-dhfpr] ASWFC Daily HF Prop Report - 27 December 23 issued 2330 UT on 27 Dec 2023 [SEC=OFFICIAL]
Regional Warning Centre
rwc at ips.gov.au
Thu Dec 28 10:30:18 EST 2023
SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/27 DECEMBER 2023
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (27 DECEMBER)
Date T index Conditions
27 Dec 133 Normal-fair
Flares: none.
MUFs:
Cocos Island Region:
Near predicted monthly values during local day.
Enhanced by 20% during local night.
Niue Island Region:
Near predicted monthly values during local day.
Enhanced by 15% during local night.
Northern Australian Region:
Near predicted monthly values.
Southern Australian Region:
Near predicted monthly values during local day.
Enhanced by 15% during local night.
Antarctic Region (Casey/Davis/Mawson):
Near predicted monthly values over the UT day.
PCA Event : No event.
Monthly T index:
Month T index
Nov 114
Dec 100
Jan 98
2. FORECAST (28 DECEMBER - 30 DECEMBER)
Date T index Conditions MUFs
28 Dec 125 Normal Near to 15% above predicted
monthly values
29 Dec 125 Normal Near to 15% above predicted
monthly values
30 Dec 125 Normal Near to 15% above predicted
monthly values
COMMENT: Maximum usable frequencies (MUFs) on UT day 27-Dec in
the Australian region were near predicted monthly values, with
enhancements of up to 15% observed in the southern Australian
region during local night. Sporadic E obscured the foF2 at Perth
at times during local night. MUFs are expected to be near predicted
monthly values to 15% enhanced on 28-Dec, with less enhancements
to mild depressions possible in the southern Australian region
if geomagnetic activity eventuates. MUFs are expected to be near
predicted monthly values to 15% enhanced over 29-30 Dec. Isolated
shortwave fadeouts are possible.
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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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