[Ips-dhfpr] ASWFC Daily HF Prop Report - 27 April 23 issued 2330 UT on 27 Apr 2023 [SEC=OFFICIAL]

[Regional Warning Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/27 APRIL 2023
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (27 APRIL) 
Date   T index  Conditions    
27 Apr   112    Normal         

Flares    Max     Fadeout    Freq.  Sectors
  M1.8    1114UT  possible   lower  European

MUFs:
   Cocos Island Region:
      Enhanced by 20% during local day.
      Near predicted monthly values during local night.
   Niue Island Region:
      Near predicted monthly values during local day.
      Enhanced by 25% during local night.
   Northern Australian Region:
      Enhanced by 15% during local day.
      Near predicted monthly values during local night.
   Southern Australian Region:
      Enhanced by 15% during local day.
      Near predicted monthly values during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Mar      132
Apr      84
May      84


2. FORECAST (28 APRIL - 30 APRIL)
Date   T index  Conditions       MUFs                              
28 Apr   115    Normal-fair      Near to 15% above predicted 
                                 monthly values
29 Apr   115    Normal           Near to 15% above predicted 
                                 monthly values    
30 Apr   115    Normal           Near to 15% above predicted 
                                 monthly values   

COMMENT: Maximum usable frequencies (MUFs) on UT day 27-Apr in 
the Australian region were near predicted monthly values to 15% 
enhanced. Strong spread F was observed at Hobart during local 
night hours. MUFs are expected to be near predicted monthly values 
to 15% enhanced over 28-30 Apr.

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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