[Ips-dhfpr] SWS Daily HF Prop Report - 27 September 17 issued 2348 UT on 27 Sep 2017 [SEC=UNCLASSIFIED]

rwc rwc at ips.gov.au
Thu Sep 28 09:48:57 EST 2017


SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/27 SEPTEMBER 2017 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (27 SEPTEMBER) 
Date   T index  Conditions    
27 Sep    32    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      No data available during local day.
      No data available during local night.
   Niue Island Region:
      Near predicted monthly values.
   Northern Australian Region:
      Mostly near predicted monthly values.
   Southern Australian Region:
      Enhanced by 15% during local day.
      Enhanced by 35% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Enhanced by 30% over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Aug      10
Sep      5
Oct      4


2. FORECAST (28 SEPTEMBER - 30 SEPTEMBER)
Date   T index  Conditions       MUFs                              
28 Sep    20    Fair             Near predicted monthly values
29 Sep    15    Fair             Near predicted monthly values    
30 Sep    10    Normal-fair      Near predicted monthly values   

COMMENT: Over the last 24 hours, MUFs were near predicted monthly 
values in the Northern Australian Region and enhanced in the 
Southern and Antarctic regions. The two day outlook (28-29 September) 
is for the MUFs to be slightly enhanced compared to the predicted 
monthly levels, but with possible minor depressions at mid-high 
latitudes in the early local mornings. This is in response to 
Active to Minor Storm geomagnetic conditions associated with 
the passage of a coronal hole. MUFs are expected to return to 
near predicted monthly values on 30 September.

----------------------------------------------------------
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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