[Ips-dhfpr] ASWFC Daily HF Prop Report - 14 May 26 issued 2330 UT on 14 May 2026 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/14 MAY 2026
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (14 MAY) 
Date   T index  Conditions    
14 May    52    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      No data available during local day.
      No data available during local night.
   Niue Island Region:
      Depressed by 15% during local day.
      Depressed by 25% during local night.
   Northern Australian Region:
      Depressed by 15% during local day.
      Depressed by 15% during local night.
      Depressed by 20% after local dawn.
   Southern Australian Region:
      Mostly near predicted monthly values.
   Antarctic Region (Casey/Davis/Mawson):
      Depressed by 15% over the UT day.

PCA Event : No event.

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


2. FORECAST (15 MAY - 17 MAY)
Date   T index  Conditions       MUFs                              
15 May    50    Normal-fair      Depressed 15%/near predicted 
                                 monthly values
16 May    50    Normal-fair      Depressed 15%/near predicted 
                                 monthly values    
17 May    60    Normal           Near predicted monthly values   

COMMENT: ASWFC HF Communications Warning 48 was issued on 13 
May and is current for 14-16 May. Maximum Usable Frequencies 
(MUFs) were mostly near predicted monthly values in southern 
Australia and 15-20% depressed in northern Australian on UT day 
14-May. Spread-F was observed at Hobart and Canberra during local 
night hours. MUFs are expected to be near predicted monthly values 
to 15% depressed over 15-16 May, improving to near predicted 
monthly values on 17-May.

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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