[Ips-dhfpr] ASWFC Daily HF Prop Report - 10 May 26 issued 2330 UT on 10 May 2026 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/10 MAY 2026
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (10 MAY) 
Date   T index  Conditions    
10 May    59    Normal         

Flares    Max     Fadeout    Freq.  Sectors
  M5.7    1339UT  possible   lower  European

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 during local day.
      Depressed by 35% during local night.
   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
Apr      74
May      71
Jun      68


2. FORECAST (11 MAY - 13 MAY)
Date   T index  Conditions       MUFs                              
11 May    55    Normal           Near predicted monthly values
12 May    60    Normal           Near predicted monthly values    
13 May    60    Normal           Near predicted monthly values   

COMMENT: ASWFC SWF HF Communications Warning 47 was issued on 
10 May and is current for 11-13 May. Maximum Usable Frequencies 
(MUFs) in the Australian region were mostly near predicted monthly 
values on UT day 10-May, with 35% depressions observed in northern 
Australia during local night hours. Spread F was observed at 
Hobart and Darwin during local night hours. MUFs are expected 
to be near predicted monthly values over 11-13 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