[Ips-dhfpr] ASWFC Daily HF Prop Report - 10 July 23 issued 2331 UT on 10 Jul 2023 [SEC=OFFICIAL]
Regional Warning Centre
rwc at ips.gov.au
Tue Jul 11 09:31:01 EST 2023
SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/10 JULY 2023
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (10 JULY)
Date T index Conditions
10 Jul 82 Normal
Flares Max Fadeout Freq. Sectors
M2.3 0355UT possible lower E. Asia/Aust.
M1.4 2218UT possible lower East Pacific/
North American
MUFs:
Cocos Island Region:
Near predicted monthly values 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 (11 JULY - 13 JULY)
Date T index Conditions MUFs
11 Jul 85 Normal Near predicted monthly values
12 Jul 85 Normal Near predicted monthly values
13 Jul 80 Normal-fair Near predicted monthly values
COMMENT: ASWFC SWF HF Communications Warning 63 was issued on
10 July and is current for 10-12 Jul. Maximum usable frequencies
(MUFs) on UT day 10-Jul in the Australian region were generally
near predicted monthly values, with depressions of up to 15%
during local night in the northern Australian region. Spread
F was observed during local night hours at several Australian
sites. MUFs are expected to be near predicted monthly values
over 11-13 Jul. 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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