[Ips-dhfpr] ASWFC Daily HF Prop Report - 30 April 26 issued 2330 UT on 30 Apr 2026 [SEC=OFFICIAL]

Fri May 1 09:30:47 AEST 2026

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/30 APRIL 2026
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (30 APRIL) 
Date   T index  Conditions    
30 Apr    77    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      No data available during local day.
      No data available during local night.
   Niue Island Region:
      Near predicted monthly values during local day.
      Depressed by 15% during local night.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Davis/Mawson):
      Near predicted monthly values over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Mar      92
Apr      83
May      81

2. FORECAST (01 MAY - 03 MAY)
Date   T index  Conditions       MUFs                              
01 May    80    Normal-fair      Near predicted monthly values
02 May    85    Normal           Near predicted monthly values    
03 May    85    Normal           Near predicted monthly values   

COMMENT: ASWFC SWF HF Communications Warning 44 was issued on 
30 April and is current for 30 Apr to 2 May. Maximum Usable Frequencies 
(MUFs) in the Australian region were near predicted monthly values 
on UT day 30-Apr. Spread F was observed at Hobart and Canberra 
during local night hours. MUFs are expected to be generally near 
predicted monthly values over 01-03 May, with mild depressions 
possible on 01-May. 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