[Ips-dhfpr] IPS Daily HF Prop Report - 19 May 13 issued 2330 UT on 19 May 2013

Regional Warning Centre rwc at ips.gov.au
Mon May 20 09:30:20 EST 2013


SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/19 MAY 2013 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (19 MAY) 
Date   T index  Conditions    
19 May    90    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      Enhanced by 25% during local day.
      Enhanced by 30% during local night.
   Niue Island Region:
      Mostly near predicted monthly values.
      Enhanced by 20% after local dawn.
   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):
      Near predicted monthly values over the UT day.

PCA Event : No event.

Predicted Monthly T index for May:  69


2. FORECAST (20 MAY - 22 MAY)
Date   T index  Conditions       MUFs                              
20 May    90    Fair             Near to 15% above predicted 
                                 monthly values
21 May    70    Normal           Near predicted monthly values    
22 May    70    Normal           Near predicted monthly values   

COMMENT: IPS Preliminary HF Communications Warning 11 was issued 
on 18 May and is current for 20-21 May. Mostly normal ionospheric 
support observed over the AUS/NZ region for the last 24 hours. 
Degraded HF conditions expected 20-May due to increased geomagnetic 
activity, particularly in S.Aus/NZ/Antarctic locations. MUFs 
expected to be mostly near predicted monthly values 20-May, with 
overnight depressions for Southern AUS/NZ regions. More widespread 
MUF depressions expected from 21-May. Some chance of short wave 
fadeouts 20-May due to solar active regions.

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

IMPORTANT: This e-mail, including any attachments, may contain,
confidential or copyright information.  The views expressed in 
this message are those of the individual sender, unless 
specifically stated to be the views of IPS.  If you are not 
the intended recipient, please contact the sender immediately 
and delete all copies of this e-mail and attachments. 
To unsubscribe from an IPS mail list either send an email to 
"MAIL_LIST"-leave at ips.gov.au or go to
http://www.ips.gov.au/mailman/listinfo/"MAIL_LIST".
Information about training can be obtained from
http://www.ips.gov.au/mailman/listinfo/ips-training.
General information is available from
http://www.ips.gov.au/mailman/listinfo/ips-info.





More information about the ips-dhfpr mailing list