[Ips-dhfpr] ASWFC Daily HF Prop Report - 19 June 24 issued 2330 UT on 19 Jun 2024 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/19 JUNE 2024
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (19 JUNE) 
Date   T index  Conditions    
19 Jun   121    Normal         

Flares    Max     Fadeout    Freq.  Sectors
  M1.1    0638UT  possible   lower  Mid East/Indian

MUFs:
   Cocos Island Region:
      Enhanced by 20% during local day.
      Depressed by 15% during local night.
   Niue Island Region:
      Near predicted monthly values during local day.
      Depressed by 20% during local night.
   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
May      121
Jun      116
Jul      117


2. FORECAST (20 JUNE - 22 JUNE)
Date   T index  Conditions       MUFs                              
20 Jun   115    Normal-fair      Near predicted monthly values
21 Jun   115    Normal           Near predicted monthly values    
22 Jun   115    Normal           Near predicted monthly values   

COMMENT: ASWFC SWF HF Communications Warning 67 was issued on 
19 June and is current for 19-20 Jun. Maximum usable frequencies 
(MUFs) on UT day 19-Jun were near predicted monthly values in 
the Australian region. Spread F was observed at several Australian 
sites during local night hours. MUFs are expected to be near 
predicted monthly values over 20-22 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