[Ips-dhfpr] IPS Daily HF Prop Report - 29 December 15 issued 2330 UT on 29 Dec 2015 [SEC=UNCLASSIFIED]

[Regional Warning Centre]

SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/29 DECEMBER 2015 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (29 DECEMBER) 
Date   T index  Conditions    
29 Dec    77    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Enhanced by 20% during local night.
   Niue Island Region:
      Mostly near predicted monthly values.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian Region:
      Near predicted monthly values.
   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
Nov      55
Dec      63
Jan      63


2. FORECAST (30 DECEMBER - 01 JANUARY)
Date   T index  Conditions       MUFs                              
30 Dec    50    Fair             Near predicted monthly values/depressed 
                                 5 to 40%
31 Dec    55    Fair             Near predicted monthly values/depressed 
                                 5 to 30%    
01 Jan    65    Normal           Near predicted monthly values   

COMMENT: IPS Preliminary HF Communications Warning 85 was issued 
on 28 December and is current for 30-31 Dec. Observed MUF's in 
the Australian/NZ regions for the UT day 29 December were mostly 
near predicted monthly values. Minor to significant degradations 
in HF conditions and depressions in MUFs may be expected on 30 
and 31 December due to expected rise in geomagnetic activity 
levels on these days. HF conditions in the region may be expected 
to return to mostly normal levels on 1 January.

----------------------------------------------------------
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 ips.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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