[Ips-dhfpr] ASWFC Daily HF Prop Report - 01 July 23 issued 2330 UT on 01 Jul 2023 [SEC=OFFICIAL]

[Regional Warning Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/01 JULY 2023
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (01 JULY) 
Date   T index  Conditions    
01 Jul    91    Normal         

Flares    Max     Fadeout    Freq.  Sectors
  M1.1    2223UT  possible   lower  East Pacific/
                                    North American

MUFs:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Depressed by 20% during local night.
   Niue Island Region:
      Near predicted monthly values.
   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/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Jun      98
Jul      87
Aug      83


2. FORECAST (02 JULY - 04 JULY)
Date   T index  Conditions       MUFs                              
02 Jul    90    Normal           Near predicted monthly values
03 Jul    90    Normal           Near predicted monthly values    
04 Jul    90    Normal           Near predicted monthly values   

COMMENT: Maximum usable frequencies (MUFs) on UT day 01-Jul in 
the Australian region were generally near predicted monthly values. 
Depressions of 15% were observed in Northern Australian regions 
during local night hours. Spread F was observed during local 
night hours at several Australian sites. MUFs are expected to 
be near predicted monthly values over 02-04 Jul. Mildly degraded 
HF conditions may be experienced during local night hours. 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