[Ips-dhfpr] SWS Daily HF Prop Report - 04 September 17 issued 2330 UT on 04 Sep 2017 [SEC=UNCLASSIFIED]

[Regional Warning Centre]

SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/04 SEPTEMBER 2017 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (04 SEPTEMBER) 
Date   T index  Conditions    
04 Sep    29    Normal         

Flares    Max     Fadeout    Freq.  Sectors
  M1.2    0550UT  possible   lower  E. Asia/Aust.
  M1.4    1531UT  possible   lower  South American/
                                    Atlantic
  C9.0    1823UT  probable   lower  East Pacific/
                                    North American
  M1.6    1940UT  possible   lower  East Pacific/
                                    North American
  M5.5    2033UT  possible   lower  East Pacific/
                                    North American

MUFs:
   Cocos Island Region:
      Enhanced by 20% during local day.
      Near predicted monthly values during local night.
   Niue Island Region:
      Mostly near predicted monthly values.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 20% during local night.
      Enhanced by 20% after local dawn.
   Southern Australian Region:
      Enhanced by 20% during local day.
      Enhanced by 25% during local night.
      Enhanced by 25% after local dawn.
   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
Aug      10
Sep      5
Oct      4


2. FORECAST (05 SEPTEMBER - 07 SEPTEMBER)
Date   T index  Conditions       MUFs                              
05 Sep    30    Normal           About 20% above predicted monthly 
                                 values
06 Sep    30    Normal           About 20% below predicted monthly 
                                 values    
07 Sep    30    Normal           About 20% below predicted monthly 
                                 values   

COMMENT: Maximum usable frequencies (MUFs) were near predicted 
monthly values to enhanced in the Aus/NZ region over the last 
24 hours. Isolated periods of sporadic E were observed in some 
locations. An increase in EUV flux is likely to result in MUFs 
enhancements for the next 3 days.

----------------------------------------------------------
For an explanation of some of the terms in this report, go to
http://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
PO Box 1386                         WWW: http://www.sws.bom.gov.au
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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