[Ips-dhfpr] ASWFC Daily HF Prop Report - 02 April 26 issued 2339 UT on 02 Apr 2026 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/02 APRIL 2026
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (02 APRIL) 
Date   T index  Conditions    
02 Apr   118    Normal-fair    

Flares    Max     Fadeout    Freq.  Sectors
  M3.5    1816UT  possible   lower  East Pacific/
                                    North American

MUFs:
   Cocos Island Region:
      Near predicted monthly values.
   Niue Island Region:
      Enhanced by 50% during local day.
      Enhanced by 50% during local night.
      Enhanced by 25% after local dawn.
   Northern Australian Region:
      Enhanced by 15% during local day.
      Enhanced by 20% during local night.
   Southern Australian Region:
      Enhanced by 20% during local day.
      Enhanced by 25% during local night.
      Depressed by 30% after local dawn.
   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 (03 APRIL - 05 APRIL)
Date   T index  Conditions       MUFs                              
03 Apr    50    Poor-fair        Depressed 20 to 30%/near predicted 
                                 monthly values
04 Apr    70    Fair-normal      Depressed 10 to 15%/near predicted 
                                 monthly values    
05 Apr    90    Normal           Near predicted monthly values   

COMMENT: ASWFC HF Communications Warning 32 was issued on 2 April 
and is current for 3 Apr only. Maximum usable frequencies (MUFs) 
in the Australian region on UT day 02-Apr were enhanced by 15-20% 
in the northern Australian region. MUFs in the southern Australian 
region were enhanced during the local day and night by 20-25%, 
then becoming 30% depressed after local dawn this morning following 
overnight geomagnetic activity induced by a coronal hole wind 
stream. Southern Australian region MUFs are expected to be depressed 
by 30% during the local day today. Northern Australian region 
MUFs are expected to remain near predicted monthly values on 
03-Apr. Southern Australian region MUFs are expected to be depressed 
by to up 15% on 04-Apr. Isolated minor short wave fadeouts are 
possible.

----------------------------------------------------------
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