[Ips-dhfpr] IPS Daily HF Prop Report - 30 April 13 issued 2330 UT on 30 Apr 2013

Regional Warning Centre rwc at ips.gov.au
Wed May 1 09:30:27 EST 2013


SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/30 APRIL 2013 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (30 APRIL) 
Date   T index  Conditions    
30 Apr    84    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      Enhanced by 35% during local day.
      Enhanced by 30% during local night.
   Niue Island Region:
      Enhanced by 15% during local day.
      Near predicted monthly values during local night.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian and New Zealand Region:
      Mostly near predicted monthly values.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Enhanced by 15% over the UT day.

PCA Event : No event.

Predicted Monthly T index for April:  68


2. FORECAST (01 MAY - 03 MAY)
Date   T index  Conditions       MUFs                              
01 May    80    Normal           Near predicted monthly values
02 May    80    Normal           Near predicted monthly values    
03 May    80    Normal           Near predicted monthly values   

COMMENT: The HF propagation conditions were mostly normal during 
the UT day 30April at mid-latitudes. Strong enhancements at near-equatorial 
northern sites were observed, especially 08-09UT, from an enhanced 
equatorial anomaly, possibly caused by remnant activity after 
the geomagnetic disturbances of the previous days. Expect mostly 
normal HF frequency availability for next three days in the absence 
of significant geomagnetic or solar flare activity. There is 
a moderate chance of isolated M/X flares from at least 4 of the 
7 solar active regions, which if they occur during local daytime 
will cause short wave fadeouts of varying degrees.

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