[Ips-dhfpr] SWS Daily HF Prop Report - 03 July 22 issued 2330 UT on 03 Jul 2022 [SEC=OFFICIAL]

[Regional Warning Centre]

SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/03 JULY 2022 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (03 JULY) 
Date   T index  Conditions    
03 Jul    44    Fair-normal    

Flares: none.

MUFs:
   Cocos Island Region:
      Near predicted monthly values.
   Niue Island Region:
      Near predicted monthly values during local day.
      Depressed by 20% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Depressed by 20% during local night.
   Southern Australian Region:
      Depressed 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
Jun      60
Jul      65
Aug      67


2. FORECAST (04 JULY - 06 JULY)
Date   T index  Conditions       MUFs                              
04 Jul    45    Normal           Depressed 10 to 15%/near predicted 
                                 monthly values
05 Jul    55    Normal           Near predicted monthly values    
06 Jul    55    Normal           Near predicted monthly values   

COMMENT: Maximum usable frequencies (MUFs) on UT day 03-Jul were 
15-20% depressed to near predicted monthly values. Degraded HF 
conditions were observed during local night hours, with spread 
F observed overnight at several sites to varying degrees. 
Frequent sporadic E was also observed in regional ionograms. 
MUFs for today are generally expected to be slightly depressed 
to near predicted monthly values. Forecast possible degraded 
HF conditions over 04-05 Jul, due to the possible arrival of 
recent CMEs, are now looking less likely. However, degraded conditions 
for southern Australian region are expected from around 07-08 Jul 
due to anticipated coronal hole wind stream induced geomagnetic 
activity.

----------------------------------------------------------
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.

Space Weather Services              email: asfc at bom.gov.au
Bureau of Meteorology
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Haymarket NSW 1240  AUSTRALIA       FTP: ftp://ftp-out.sws.bom.gov.au
tel: +61 2 9213 8010                fax: +61 2 9213 8060 

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