[Ips-dhfpr] SWS Daily HF Prop Report - 25 October 17 issued 2345 UT on 25 Oct 2017 [SEC=UNCLASSIFIED]

rwc rwc at ips.gov.au
Thu Oct 26 10:45:40 EST 2017


SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/25 OCTOBER 2017 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (25 OCTOBER) 
Date   T index  Conditions    
25 Oct     5    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      No data available.
   Niue Island Region:
      Near predicted monthly values.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Depressed by 15% during local night.
   Southern Australian Region:
      Depressed by 15% during local day.
      Near predicted monthly values during local night.
   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
Sep      20
Oct      5
Nov      4


2. FORECAST (26 OCTOBER - 28 OCTOBER)
Date   T index  Conditions       MUFs                              
26 Oct     0    Normal-fair      Near predicted monthly values/depressed 
                                 15 to 30%
27 Oct     0    Normal-fair      Near predicted monthly values/depressed 
                                 10 to 20%    
28 Oct     5    Normal-fair      Near predicted monthly values   

COMMENT: SWS HF Communications Warning 44 was issued on 25 October 
and is current for 25-26 Oct. Minor MUF depressions for Southern 
AUS/NZ regions and Northern AUS/Equatorial regions for 25Oct. 
MUF depressions of ~20% for Northern AUS and Southern AUS/NZ 
regions possible over the next 24-48 hours. Degraded ionospheric 
support for Antarctic regions expected during this period. MUFs 
expected to be near predicted monthly values for 28Oct.

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