[Ips-dhfpr] SWS Daily HF Prop Report - 30 September 16 issued 2337 UT on 30 Sep 2016 [SEC=UNCLASSIFIED]

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SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/30 SEPTEMBER 2016 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (30 SEPTEMBER) 
Date   T index  Conditions    
30 Sep    -8    Fair           

Flares: none.

MUFs:
   Cocos Island Region:
      Enhanced by 15% during local day.
      Depressed by 30% during local night.
   Niue Island Region:
      No data available.
   Northern Australian Region:
      Depressed by 30% during local day.
      Depressed by 20% during local night.
      Depressed by 20% after local dawn.
   Southern Australian Region:
      Depressed by 35% during local day.
      Depressed by 40% during local night.
   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 (01 OCTOBER - 03 OCTOBER)
Date   T index  Conditions       MUFs                              
01 Oct     0    Normal-fair      15 to 20% below predicted monthly 
                                 values
02 Oct     5    Normal-fair      Depressed 15%/near predicted 
                                 monthly values    
03 Oct    15    Normal           Near predicted monthly values   

COMMENT: SWS HF Communications Warning 42 was issued on 29 September 
and is current for 29 Sep to 1 Oct. Observed MUF's were strongly 
depressed over most Australian regions throughout the UT day 
30 September except on the day side for the equatorial Australian 
regions. These depression are associated with the observed disturbed 
geomagnetic conditions driven by a very large positive polarity 
coronal hole. Slightly improved MUFs, though still near depressed 
levels compared to monthly predicted values, are expected for 
the next two days (1-2 October) as the ionosphere gradually recovers 
from the aftermath of storms associated with the coronal hole.

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