[Ips-dhfpr] ASWFC Daily HF Prop Report - 07 April 25 issued 2331 UT on 07 Apr 2025 [SEC=OFFICIAL]
Australian Space Weather Forecasting Centre
aswfc at bom.gov.au
Tue Apr 8 09:31:42 AEST 2025
SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/07 APRIL 2025
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (07 APRIL)
Date T index Conditions
07 Apr 133 Normal
Flares: none.
MUFs:
Cocos Island Region:
Enhanced by 30% during local day.
Enhanced by 45% during local night.
Niue Island Region:
Enhanced by 25% during local day.
Near predicted monthly values during local night.
Northern Australian Region:
Enhanced by 20% during local day.
Enhanced by 15% during local night.
Southern Australian Region:
Near predicted monthly values during local day.
Depressed by 15% during local night.
Antarctic Region (Casey/Davis/Mawson):
Depressed by 30% over the UT day.
PCA Event : No event.
Monthly T index:
Month T index
Mar 126
Apr 115
May 113
2. FORECAST (08 APRIL - 10 APRIL)
Date T index Conditions MUFs
08 Apr 120 Normal-fair Near predicted monthly values
to 15% depressed
09 Apr 120 Normal-fair Near predicted monthly values
to 15-20% depressed
10 Apr 115 Normal-fair Near predicted monthly values
to 15-20% depressed
COMMENT: Maximum usable frequencies (MUFs) in the Australian
region on UT day 7-Apr were mostly near predicted values, with
enhancements in the north and depressions in the south. Spread
F was observed in Hobart during local night hours. MUFs are expected
to be near predicted values to 15-20% depressed over 8-10 Apr
due to persistent coronal hole activity.
----------------------------------------------------------
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
More information about the ips-dhfpr
mailing list