[Ips-dhfpr] SWS Daily HF Prop Report - 14 October 17 issued 2332 UT on 14 Oct 2017 [SEC=UNCLASSIFIED]

[rwc]

SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/14 OCTOBER 2017 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (14 OCTOBER) 
Date   T index  Conditions    
14 Oct   -15    Poor-fair      

Flares: none.

MUFs:
   Cocos Island Region:
      No data available.
   Niue Island Region:
      Near predicted monthly values.
   Northern Australian Region:
      Depressed by 35% during local day.
      Depressed by 30% during local night.
   Southern Australian Region:
      Depressed by 25% during local day.
      Depressed by 30% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Disturbed ionospheric support.

PCA Event : No event.

Monthly T index:
Month  T index
Sep      20
Oct      5
Nov      4


2. FORECAST (15 OCTOBER - 17 OCTOBER)
Date   T index  Conditions       MUFs                              
15 Oct   -15    Fair-poor        20 to 30% below predicted monthly 
                                 values
16 Oct   -10    Fair-poor        Near predicted monthly values/depressed 
                                 20 to 30%    
17 Oct     5    Normal-fair      Near predicted monthly values   

COMMENT: SWS HF Communications Warning 43 was issued on 14 October 
and is current for 14-15 Oct. Degraded HF conditions across most 
of the Australian/NZ and Antarctic regions during the last 24 
hours. Mild to Moderate depression observed across Aus/NZ region. 
Disturbed periods observed for Low to Mid latitudes over the 
past 24 hours. High latitudes experienced poor HF conditions. 
Sporadic E and Spread F were also observed at times across the 
Australian region which may have contributed to degraded HF conditions. 
These is due to increased geomagnetic activity caused by the 
coronal hole adding to low solar flare activity. Similar, yet 
improving conditions may be expected to prevail over the next 
few 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
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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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