[Ips-dhfpr] SWS Daily HF Prop Report - 14 May 17 issued 2353 UT on 14 May 2017 [SEC=UNCLASSIFIED]

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SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/14 MAY 2017 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (14 MAY) 
Date   T index  Conditions    
14 May     0    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      Near predicted monthly values during local day.
      No data available during local night.
      Depressed by 20% after local dawn.
   Niue Island Region:
      Depressed by 25% during local day.
      Near predicted monthly values during local night.
      Depressed by 20% after local dawn.
   Northern Australian Region:
      Mostly near predicted monthly values.
   Southern Australian Region:
      Depressed by 15% during local day.
      Near predicted monthly values during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Enhanced by 20% over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Apr      14
May      12
Jun      12


2. FORECAST (15 MAY - 17 MAY)
Date   T index  Conditions       MUFs                              
15 May    -5    Normal-fair      Near predicted monthly values/depressed 
                                 10 to 30%
16 May   -10    Normal-fair      Depressed 15%/near predicted 
                                 monthly values    
17 May   -15    Normal-fair      Depressed 15%/near predicted 
                                 monthly values   

COMMENT: Variable HF conditions observed for 14May with depressed 
MUFs for Equatorial, Northern AUS and Southern AUS/NZ stations 
during local day and near predicted monthly values during local 
night. MUFs near predicted monthly values for Antarctic regions. 
Similar conditions are expected for local day 15May after which 
notable MUF depressions for Southern AUS/NZ and Antarctic regions 
are expected due to increased geomagnetic activity from coronal 
hole effects. Geomagnetic activity is expected to continue into 
16May-17May resulting in depressed MUF's of 10%-30% for Northern 
AUS, Southern AUS/NZ regions with poor ionospheric support for 
Antarctic regions.

----------------------------------------------------------
For an explanation of some of the terms in this report, go to
http://www.sws.bom.gov.au, and follow links to Educational->
Glossary on Solar Terrestrial Terms.

Space Weather Services              email: asfc at bom.gov.au
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