[Ips-dhfpr] ASWFC Daily HF Prop Report - 01 May 26 issued 2330 UT on 01 May 2026 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/01 MAY 2026
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (01 MAY) 
Date   T index  Conditions    
01 May    84    Normal-fair    

Flares: none.

MUFs:
   Cocos Island Region:
      No data available during local day.
      No data available during local night.
   Niue Island Region:
      Enhanced by 15% during local day.
      Near predicted monthly values during local night.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Davis/Mawson):
      Depressed by 20% over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Apr      74
May      71
Jun      68


2. FORECAST (02 MAY - 04 MAY)
Date   T index  Conditions       MUFs                              
02 May    85    Normal-fair      Near predicted monthly values
03 May    85    Normal-fair      Near predicted monthly values    
04 May    85    Normal-fair      Near predicted monthly values   

COMMENT: ASWFC SWF HF Communications Warning 45 was issued on 
1 May and is current for 1-2 May. Maximum Usable Frequencies 
(MUFs) in the Australian region on 01-May were mostly near predicted 
monthly values, with some enhancements seen at Niue Island. Spread-F 
and sporadic-E were observed at Perth and Hobart, with sporadic-E 
also observed at Canberra. Depressions of 20% were observed in 
the Antarctic region. MUFs are expected to be near predicted 
monthly values over 02-04 May. Isolated 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