[Ips-dhfpr] ASWFC Daily HF Prop Report - 30 March 25 issued 2331 UT on 30 Mar 2025 [SEC=OFFICIAL]
Australian Space Weather Forecasting Centre
aswfc at bom.gov.au
Mon Mar 31 10:31:00 AEDT 2025
SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/30 MARCH 2025
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (30 MARCH)
Date T index Conditions
30 Mar 136 Normal
Flares Max Fadeout Freq. Sectors
M1.9 29/2300UT possible lower West Pacific
M1.5 0148UT possible lower West Pacific
M1.6 1643UT possible lower South American/
Atlantic
M1.4 2250UT possible lower East Pacific/
North American
MUFs:
Cocos Island Region:
Near predicted monthly values.
Niue Island Region:
Enhanced by 35% during local day.
Enhanced by 55% during local night.
Northern Australian Region:
Mostly near predicted monthly values.
Southern Australian Region:
Enhanced by 15% during local day.
Near predicted monthly values 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
Feb 127
Mar 117
Apr 114
2. FORECAST (31 MARCH - 02 APRIL)
Date T index Conditions MUFs
31 Mar 130 Normal-fair Near predicted monthly values
to 15-20% enhanced
01 Apr 135 Normal-fair Near predicted monthly values
to 10-15% enhanced
02 Apr 140 Normal Near predicted monthly values
to 15-20% enhanced
COMMENT: ASWFC SWF HF Communications Warning 32 was issued on
29 March and is current for 29-31 Mar. Maximum usable frequencies
(MUFs) in the Australian region on UT day 30-Mar were near predicted
values to 15% enhanced. Sporadic-E was observed in Brisbane and
Townsville during local night hours. Scintillation was observed
in Weipa from 1106 to 1130 UT. MUFs are generally expected to
be near predicted values to 15-20% enhanced over 31-Mar to 1-2
Apr.
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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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