[Ips-dhfpr] ASWFC Daily HF Prop Report - 28 April 24 issued 2330 UT on 28 Apr 2024 [SEC=OFFICIAL]

[Regional Warning Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/28 APRIL 2024
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (28 APRIL) 
Date   T index  Conditions    
28 Apr   127    Normal-fair    

Flares: none.

MUFs:
   Cocos Island Region:
      Enhanced by 20% during local day.
      Enhanced by 25% during local night.
   Niue Island Region:
      Near predicted monthly values.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian Region:
      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 (29 APRIL - 01 MAY)
Date   T index  Conditions       MUFs                              
29 Apr   140    Normal           Near to 15% above predicted 
                                 monthly values
30 Apr   140    Normal           Near to 15% above predicted 
                                 monthly values    
01 May   135    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) in the Australian region were near predicted monthly values 
UT day 28-Apr. Spread F was observed in Hobart and Canberra during 
local nighttime hours. MUFs are expected to be near predicted 
values to 15% enhanced over 29-Apr to 01-May. 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