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

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/24 JUNE 2024
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (24 JUNE) 
Date   T index  Conditions    
24 Jun   104    Normal         

Flares    Max     Fadeout    Freq.  Sectors
  M1.3    0417UT  possible   lower  E. Asia/Aust.
  M1.8    0452UT  possible   lower  E. Asia/Aust.
  M1.1    1910UT  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 during local day.
      Depressed by 15% during local night.
   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
May      121
Jun      116
Jul      117


2. FORECAST (25 JUNE - 27 JUNE)
Date   T index  Conditions       MUFs                              
25 Jun   105    Normal           Near predicted monthly values
26 Jun   105    Normal           Near predicted monthly values    
27 Jun   105    Normal           Near predicted monthly values   

COMMENT: ASWFC SWF HF Communications Warning 69 was issued on 
23 June and is current for 24-25 Jun. Maximum usable frequencies 
(MUFs) were mostly near predicted monthly values in the Australian 
region on UT day 24-Jun. MUFs were depressed by 15% during local 
night in northern Australia. Spread-F was observed at several 
sites during local night hours. MUFs are expected to be near 
predicted monthly values over 25-27 Jun. 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