[Ips-dhfpr] IPS Daily HF Prop Report - 22 May 13 issued 2357 UT on 22 May 2013

rwc rwc at ips.gov.au
Thu May 23 09:57:29 EST 2013


SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 2355UT/22 MAY 2013 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (22 MAY) 
Date   T index  Conditions    
22 May    85    Normal         

Flares    Max     Fadeout    Freq.  Sectors
  M5.0    1335UT  possible   lower  European

MUFs:
   Cocos Island Region:
      Enhanced by 20% during local day.
      Near predicted monthly values during local night.
   Niue Island Region:
      Near predicted monthly values.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Depressed by 15% during local night.
      Enhanced by 20% after local dawn.
   Southern Australian and New Zealand Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Enhanced by 20% over the UT day.

PCA Event : No event.

Predicted Monthly T index for May:  69


2. FORECAST (23 MAY - 25 MAY)
Date   T index  Conditions       MUFs                              
23 May    80    Normal           Near predicted monthly values
24 May    80    Normal-fair      Near predicted monthly values    
25 May    40    Normal-fair      Depressed 10-20%/near predicted 
                                 monthly values   

COMMENT: Mostly normal conditions were observed during 22 May. 
Mostly normal conditions are expected for 23-24 May with degraded 
conditions expected 25 May as the result of anticipated increased 
geomagnetic activity. SWFs possible over the next few days. Significantly 
degraded conditions are expected at high latitudes due to a PCA 
event likely to remain in progress for the next couple of days.

----------------------------------------------------------
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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tel: +61 2 9213 8010                fax: +61 2 9213 8060 

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