[Ips-dhfpr] ASWFC Daily HF Prop Report - 29 April 25 issued 2331 UT on 29 Apr 2025 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/29 APRIL 2025
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (29 APRIL) 
Date   T index  Conditions    
29 Apr   119    Fair-normal    

Flares    Max     Fadeout    Freq.  Sectors
  M1.7    0513UT  possible   lower  E. Asia/Aust.
  M1.3    1003UT  possible   lower  European
  M1.6    1057UT  possible   lower  European

MUFs:
   Cocos Island Region:
      Near predicted monthly values.
   Niue Island Region:
      Near predicted monthly values.
   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      126
Apr      115
May      113


2. FORECAST (30 APRIL - 02 MAY)
Date   T index  Conditions       MUFs                              
30 Apr   125    Normal           Near predicted monthly values
01 May   125    Normal           Near predicted monthly values    
02 May   125    Normal           Near predicted monthly values   

COMMENT: ASWFC SWF HF Communications Warning 42 was issued on 
29 April and is current for 29 Apr to 1 May. Maximum usable frequencies 
(MUFs) in the Australian region on UT day 29-Apr were near predicted 
monthly values. Spread F was observed at Hobart during local 
night hours. MUFs are expected to be near predicted monthly values 
over 30-Apr to 02-May. Southern Australian region HF conditions 
may become mildly degraded during local night hours 01-02 May. 
Isolated minor fadeouts 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