[Ips-dhfpr] ASWFC Daily HF Prop Report - 03 July 23 issued 2331 UT on 03 Jul 2023 [SEC=OFFICIAL]

[Regional Warning Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/03 JULY 2023
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (03 JULY) 
Date   T index  Conditions    
03 Jul    87    Normal         

Flares    Max     Fadeout    Freq.  Sectors
  M1.3    0653UT  possible   lower  Mid East/Indian

MUFs:
   Cocos Island Region:
      Near predicted monthly values.
   Niue Island Region:
      Near predicted monthly values during local day.
      Enhanced by 15% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Depressed by 20% during local night.
   Southern Australian Region:
      Mostly 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      91
Aug      88


2. FORECAST (04 JULY - 06 JULY)
Date   T index  Conditions       MUFs                              
04 Jul    90    Normal           Near predicted monthly values
05 Jul    90    Normal           Near predicted monthly values    
06 Jul    90    Normal           Near predicted monthly values   

COMMENT: ASWFC SWF HF Communications Warning 61 was issued on 
2 July and is current for 2-4 Jul. Maximum usable frequencies 
(MUFs) on UT day 03-Jul in the Australian region were generally 
near predicted monthly values. Spread F was observed during local 
night hours at east coast sites. MUFs are expected to be near 
predicted monthly values over 04-06 Jul. Mildly degraded HF conditions 
may be experienced during local night hours. Shortwave fadeouts 
are possible. A strong fadeout was observed at Niue 03/2310-04/0030UT 
in association with yesterdays X1 flare.

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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