[Ips-dhfpr] ASWFC Daily HF Prop Report - 06 May 24 issued 2333 UT on 06 May 2024 [SEC=OFFICIAL]

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SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/06 MAY 2024
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (06 MAY) 
Date   T index  Conditions    
06 May   117    Normal         

Flares    Max     Fadeout    Freq.  Sectors
  M1.6    0106UT  possible   lower  West Pacific
  M1.3    0528UT  possible   lower  E. Asia/Aust.
  X4.5    0635UT  confirmed  all    Mid East/Indian
  M1.5    0959UT  possible   lower  Mid East/Indian
  M1.2    2148UT  possible   lower  East Pacific/
                                    North American
  M4.3    2227UT  possible   lower  East Pacific/
                                    North American

MUFs:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Enhanced by 15% 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.
   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 (07 MAY - 09 MAY)
Date   T index  Conditions       MUFs                              
07 May   100    Normal           Near predicted monthly values
08 May   100    Normal           Near predicted monthly values    
09 May   100    Normal           Near predicted monthly values   

COMMENT: ASWFC Preliminary HF Communications Warning 47 was issued 
on 5 May and is current for 5-7 May. ASWFC SWF HF Communications 
Warning 48 was issued on 6 May and is current for 7-9 May. Maximum 
usable frequencies (MUFs) on UT day 06-May were generally near 
predicted monthly values. A shortwave fadeout was observed in 
the Australian region in association with the X4.5 flare from 
06/0517-0848UT. Spread-F was observed in Hobart, Canberra and 
Perth during local night hours. MUFs are expected to be near 
predicted values for 07-09 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