[Ips-dhfpr] ASWFC Daily HF Prop Report - 29 April 24 issued 2330 UT on 29 Apr 2024 [SEC=OFFICIAL]

[Regional Warning Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/29 APRIL 2024
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (29 APRIL) 
Date   T index  Conditions    
29 Apr   119    Normal         

Flares    Max     Fadeout    Freq.  Sectors
  M2.5    0048UT  possible   lower  West Pacific
  M3.7    0111UT  possible   lower  West Pacific

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.
      Enhanced by 20% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 25% during local night.
   Southern Australian Region:
      Mostly 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
Mar      120
Apr      114
May      115


2. FORECAST (30 APRIL - 02 MAY)
Date   T index  Conditions       MUFs                              
30 Apr   120    Normal           Near to 15% above predicted 
                                 monthly values
01 May   125    Normal           Near to 15% above predicted 
                                 monthly values    
02 May   130    Normal           Near to 15% above predicted 
                                 monthly values   

COMMENT: ASWFC SWF HF Communications Warning 42 was issued on 
27 April and is current for 28-30 Apr. Maximum usable frequencies 
(MUFs) on UT day 29-Apr were generally near predicted values 
to 25% enhanced. Mild spread-F was observed at most southern 
Australian sites during local midnight hours. Scintillation was 
observed at Weipa between 29/0720-1422 UT. MUFs are expected 
to be near predicted values over 30-Apr to 02-May, with mild 
enhancements possible. 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