[Ips-dhfpr] IPS Daily HF Prop Report - 16 April 16 issued 2330 UT on 16 Apr 2016 [SEC=UNCLASSIFIED]

[Regional Warning Centre]

SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/16 APRIL 2016 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (16 APRIL) 
Date   T index  Conditions    
16 Apr    27    Fair-normal    

Flares: none.

MUFs:
   Cocos Island Region:
      Enhanced by 30% during local day.
      Near predicted monthly values during local night.
   Niue Island Region:
      Near predicted monthly values during local day.
      Depressed by 30% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Depressed by 30% during local night.
   Southern Australian Region:
      Depressed by 20% during local day.
      Depressed by 20% during local night.
      Depressed by 30% after local dawn.
   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
Mar      50
Apr      50
May      49


2. FORECAST (17 APRIL - 19 APRIL)
Date   T index  Conditions       MUFs                              
17 Apr    25    Fair-normal      Near predicted monthly values/depressed 
                                 20 to 30%
18 Apr    35    Normal-fair      Near predicted monthly values/depressed 
                                 15 to 20%    
19 Apr    25    Fair-normal      Near predicted monthly values/depressed 
                                 20 to 30%   

COMMENT: IPS HF Communications Warning 19 was issued on 16 April 
and is current for 17-19 Apr. Significantly depressed MUFs were 
observed across the Australian region on 16-Apr. Enhanced MUFs 
observed daytime at Cocos Island. Spread-F observed in most locations 
for varying periods during the latter half of the UT day. Moderate 
to significant MUF depressions are likely to persist for the 
next 3 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
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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