[Ips-dhfpr] IPS Daily HF Prop Report - 22 April 13 issued 2330 UT on 22 Apr 2013

Regional Warning Centre rwc at ips.gov.au
Tue Apr 23 09:30:22 EST 2013


SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/22 APRIL 2013 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (22 APRIL) 
Date   T index  Conditions    
22 Apr    56    Normal-fair    

Flares: none.

MUFs:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Depressed by 25% during local night.
   Niue Island Region:
      Depressed by 15% during local day.
      Depressed by 25% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Depressed by 15% during local night.
   Southern Australian and New Zealand Region:
      Near predicted monthly values during local day.
      Depressed by 15% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

PCA Event : No event.

Predicted Monthly T index for April:  68


2. FORECAST (23 APRIL - 25 APRIL)
Date   T index  Conditions       MUFs                              
23 Apr    60    Normal-fair      Near predicted monthly values
24 Apr    40    Poor-fair        10 to 20% below predicted monthly 
                                 values    
25 Apr    40    Poor-fair        10 to 20% below predicted monthly 
                                 values   

COMMENT: The propagation conditions were slightly depressed during 
the night hours of 22 April at most Australian stations. HF degradations 
and MUF depressions are possible from 24-Apr due to an expected 
increase in geomagnetic activity, especially in mid and Southern 
Aus/NZ regions. Chance of SWFs during the forecast period.

----------------------------------------------------------
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
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Haymarket NSW 1240  AUSTRALIA       FTP: ftp://ftp.ips.gov.au 
tel: +61 2 9213 8010                fax: +61 2 9213 8060 

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