[Ips-dhfpr] SWS Daily HF Prop Report - 27 September 16 issued 2330 UT on 27 Sep 2016 [SEC=UNCLASSIFIED]

Regional Warning Centre rwc at ips.gov.au
Wed Sep 28 09:30:24 EST 2016


SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/27 SEPTEMBER 2016 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     7    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Depressed by 40% during local night.
   Niue Island Region:
      No data available.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian Region:
      Depressed by 30% during local day.
      Depressed by 15% during local night.
      Depressed by 25% after local dawn.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Depressed by 15% over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Aug      29
Sep      35
Oct      34


2. FORECAST (28 SEPTEMBER - 30 SEPTEMBER)
Date   T index  Conditions       MUFs                              
28 Sep     5    Poor             Depressed 15%/near predicted 
                                 monthly values
29 Sep     5    Poor             Depressed 15%/near predicted 
                                 monthly values    
30 Sep     5    Fair             Depressed 15%/near predicted 
                                 monthly values   

COMMENT: SWS HF Communications Warning 41 was issued on 26 September 
and is current for 26-28 Sep. Observed MUF's were strongly depressed 
over the southern Australian and Antarctic regions, and near 
the monthly predicted levels for the equatorial and northern 
Australian regions. These strong depression in the high latitudes 
and enhancements in the low latitudes are associated with the 
observed minor storm conditions. MUFs over the high latitudes 
regions are expected to remain strongly depressed for the next 
three days (28 - 30 September) as active conditions associated 
with the coronal hole are expected to persist for a few more 
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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