[Ips-dhfpr] IPS Daily HF Prop Report - 19 December 14 issued 2330 UT on 19 Dec 2014

Regional Warning Centre rwc at ips.gov.au
Sat Dec 20 10:30:38 EST 2014


SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/19 DECEMBER 2014 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (19 DECEMBER) 
Date   T index  Conditions    
19 Dec   134    Normal         

Flares    Max     Fadeout    Freq.  Sectors
  M1.3    0944UT  possible   lower  Mid East/Indian

MUFs:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Enhanced by 20% during local night.
   Niue Island Region:
      Enhanced by 15% during local day.
      Enhanced by 20% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 20% during local night.
   Southern Australian and New Zealand Region:
      Near predicted monthly values during local day.
      Enhanced by 20% 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
Nov      113
Dec      87
Jan      87


2. FORECAST (20 DECEMBER - 22 DECEMBER)
Date   T index  Conditions       MUFs                              
20 Dec   120    Normal-fair      Near to 15% above predicted 
                                 monthly values
21 Dec    80    Fair             Near predicted monthly values/depressed 
                                 10 to 20%    
22 Dec    80    Normal           Near predicted monthly values/depressed 
                                 10 to 30%   

COMMENT: IPS SWF HF Communications Warning 61 was issued on 17 
December and is current for 18-20 Dec. IPS Preliminary HF Communications 
Warning 63 was issued on 19 December and is current for 21-22 
Dec. MUFs were near predicted to enhanced over the UT day 19 
December. Isolated cases of sporadic E were observed in the eastern 
Australian regions. Near monthly predicted MUFs to slightly enhanced 
values are expected today, 20 December. Expect near predicted 
values with periods of depressed conditions on 21-22 December 
due to an expected increase in geomagnetic activity.

----------------------------------------------------------
For an explanation of some of the terms in this report, go to
http://www.ips.gov.au, and follow links to Educational->
Glossary on Solar Terrestrial Terms.

IPS Radio and Space Services        email: asfc at ips.gov.au
PO Box 1386                         WWW: http://www.ips.gov.au
Haymarket NSW 1240  AUSTRALIA       FTP: ftp://ftp.ips.gov.au 
tel: +61 2 9213 8010                fax: +61 2 9213 8060 

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