[Ips-dhfpr] IPS Daily HF Prop Report - 24 December 15 issued 2330 UT on 24 Dec 2015 [SEC=UNCLASSIFIED]

Regional Warning Centre rwc at ips.gov.au
Fri Dec 25 10:30:44 EST 2015


SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/24 DECEMBER 2015 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (24 DECEMBER) 
Date   T index  Conditions    
24 Dec    58    Poor           

Flares    Max     Fadeout    Freq.  Sectors
  M1.1    0213UT  possible   lower  E. Asia/Aust.

MUFs:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Depressed by 25% during local night.
      Depressed by 25% after local dawn.
   Niue Island Region:
      Enhanced by 15% during local day.
      Enhanced by 20% during local night.
   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 (25 DECEMBER - 27 DECEMBER)
Date   T index  Conditions       MUFs                              
25 Dec    60    Normal           Near predicted monthly values
26 Dec    65    Normal           Near predicted monthly values    
27 Dec    60    Normal           Near predicted monthly values   

COMMENT: IPS SWF HF Communications Warning 84 was issued on 24 
December and is current for 24-26 Dec. Observed MUF's for the 
UT day 24 Dec were near the predicted monthly values. There is 
a chance of isolated shortwave fadeouts for the next two days 
due to flaring potential from active sunspot regions (Region 
2472 and 2473). The 2-day outlook (25-26 Dec) is for MUFs to 
remain strong, near the expected predicted monthly values.

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