[Ips-dhfpr] IPS Daily HF Prop Report - 17 February 11

[rwc]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 17/2330Z FEBRUARY 2011 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (17 FEBRUARY) 
Date   T index  Conditions    
17 Feb    49    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      Enhanced by 30% during local day,
      Enhanced by 35% during local night.
   Niue Island Region:
      Near predicted monthly values.
   Northern Australian Region:
      Enhanced by 30% during local day,
      Enhanced by 50% during local night.
   Southern Australian and New Zealand Region:
      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 February:  38
2. FORECAST (18 FEBRUARY - 20 FEBRUARY)
Date   T index  Conditions       MUFs                              
18 Feb    20    Fair             depressed 10 to 30%/near predicted 
                                 monthly values 
19 Feb    15    Normal           depressed 10 to 30%/near predicted 
                                 monthly values     
20 Feb    30    Normal           depressed 10 to 20%/near predicted 
                                 monthly values    
COMMENT: Normal HF conditions observed over Australian region 
during the last 24 hours with periods of enhanced MUFs observed 
during local day and night for Northern AUS/Equatorial regions. 
Normal ionospheric support for Southern AUS/NZ and Antarctic 
regions. Increased geomagnetic activity is expected for 18Feb-19Feb 
with the expected arrival of the 15feb X2.2 flare CME within 
the next 12 hours. Possible enhancements for mid to low latitudes 
followed by depressed MUFs of 10%-30% expected across the Australian 
region and disturbed ionospheric conditins for high latitudes 
in the next 24 hours. Depressed conditions expected for 19Feb-20Feb 
for mid to high latitudes. 
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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.

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