[Ips-dhfpr] ASWFC Daily HF Prop Report - 27 May 24 issued 2330 UT on 27 May 2024 [SEC=OFFICIAL]

[Regional Warning Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/27 MAY 2024
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (27 MAY) 
Date   T index  Conditions    
27 May   107    Normal         

Flares    Max     Fadeout    Freq.  Sectors
  X2.8    0708UT  probable   all    Mid East/Indian

MUFs:
   Cocos Island Region:
      Enhanced by 15% during local day.
      Near predicted monthly values during local night.
   Niue Island Region:
      Mostly near predicted monthly values.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Depressed by 25% during local night.
   Southern Australian Region:
      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      125
May      114
Jun      116


2. FORECAST (28 MAY - 30 MAY)
Date   T index  Conditions       MUFs                              
28 May   110    Normal           Near predicted monthly values
29 May   110    Normal           Near predicted monthly values    
30 May   110    Normal           Near predicted monthly values   

COMMENT: ASWFC SWF HF Communications Warning 56 was issued on 
26 May and is current for 26-28 May. Maximum usable frequencies 
(MUFs) in the Australian region on UT day 27-May were generally 
near predicted monthly values. Northern Australia MUFs were 25% 
depressed during local night hours. Spread F was observed at 
Hobart and Canberra during local night hours. MUFs are expected 
to be near predicted monthly values over 28-30 May. Shortwave 
fadeouts are probable.

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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