[Ips-dhfpr] ASWFC Daily HF Prop Report - 03 May 24 issued 2330 UT on 03 May 2024 [SEC=OFFICIAL]

[Regional Warning Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/03 MAY 2024
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (03 MAY) 
Date   T index  Conditions    
03 May   101    Fair           

Flares    Max     Fadeout    Freq.  Sectors
  M2.7    0015UT  possible   lower  West Pacific
  X1.6    0222UT  probable   all    E. Asia/Aust.
  M4.5    0811UT  possible   lower  Mid East/Indian
  M1.2    2243UT  possible   lower  East Pacific/
                                    North American

MUFs:
   Cocos Island Region:
      Mostly near predicted monthly values.
   Niue Island Region:
      Near predicted monthly values.
   Northern Australian Region:
      Mostly near predicted monthly values.
   Southern Australian Region:
      Depressed by 30% during local day.
      Depressed by 25% during local night.
   Antarctic Region (Casey/Davis/Mawson):
      Depressed by 40% over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Apr      125
May      114
Jun      116


2. FORECAST (04 MAY - 06 MAY)
Date   T index  Conditions       MUFs                              
04 May   108    Normal-fair      Near predicted monthly values 
                                 to 20% depressed
05 May   115    Normal           Near predicted monthly values    
06 May   120    Normal           Near predicted monthly values   

COMMENT: ASWFC SWF HF Communications Warning 46 was issued on 
3 May and is current for 4-6 May. Maximum usable frequencies 
(MUFs) in the Australian region on UT day 03-May were near predicted 
values in the north ad 30% depressed in the south. Spread-F was 
observed at most sites during local night hours. Scintillation 
was observed in Darwin between 03/1320-1340 UT. MUFs are expected 
to begin returning to near predicted values on 04-May, although 
some mild depressions may persist in high latitudes. Equatorial 
scintillation may continue during local midnight hours. 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