[Ips-dhfpr] ASWFC Daily HF Prop Report - 06 July 23 issued 2330 UT on 06 Jul 2023 [SEC=OFFICIAL]
Regional Warning Centre
rwc at ips.gov.au
Fri Jul 7 09:30:16 EST 2023
SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/06 JULY 2023
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (06 JULY)
Date T index Conditions
06 Jul 88 Normal
Flares Max Fadeout Freq. Sectors
M1.0 1050UT possible lower European
MUFs:
Cocos Island Region:
Enhanced by 30% during local day.
Depressed by 20% during local night.
Niue Island Region:
Near predicted monthly values.
Northern Australian Region:
Near predicted monthly values during local day.
Depressed by 15% during local night.
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
Jun 98
Jul 91
Aug 88
2. FORECAST (07 JULY - 09 JULY)
Date T index Conditions MUFs
07 Jul 85 Fair Near predicted monthly values
08 Jul 85 Normal Near predicted monthly values
09 Jul 85 Normal Near predicted monthly values
COMMENT: Maximum usable frequencies (MUFs) on UT day 06-Jul in
the Australian region were generally near predicted monthly values.
Spread F was occasionally observed during local night hours.
MUFs are expected to be near predicted monthly values over 07-09
Jul. Degraded HF conditions may be experienced during local night
hours over 07-08 Jul due to the anticipated arrival of a CME.
Mild depressions may be experienced after local dawn on 08-Jul
for southern Australian region if expected geomagnetic activity
eventuates on 07-Jul. Isolated minor 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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