[Ips-dhfpr] IPS Daily HF Prop Report - 09 April 16 issued 2330 UT on 09 Apr 2016 [SEC=UNCLASSIFIED]

[Regional Warning Centre]

SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/09 APRIL 2016 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (09 APRIL) 
Date   T index  Conditions    
09 Apr    25    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      Depressed by 25% during local day.
      Depressed by 40% during local night.
   Niue Island Region:
      Enhanced by 35% during local day.
      Near predicted monthly values during local night.
   Northern Australian Region:
      Depressed by 15% during local day.
      Depressed by 35% during local night.
   Southern Australian Region:
      Depressed by 20% during local day.
      Depressed by 25% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Mar      50
Apr      50
May      49


2. FORECAST (10 APRIL - 12 APRIL)
Date   T index  Conditions       MUFs                              
10 Apr    25    Normal-fair      Depressed 15%/near predicted 
                                 monthly values
11 Apr    35    Normal           Near predicted monthly values    
12 Apr    45    Normal           Near predicted monthly values   

COMMENT: Conditions for HF radio propagation on UT day 9 April 
were significantly depressed over all Australian regions, except 
near the equatorial regions (e.g. Niue island). Conditions are 
expected to slightly recover to moderately depressed levels today, 
10 Apr. The HF depression over the past 48 hours is due to the 
aftermath of active conditions observed on UT day 7 April. HF 
conditions are expected to recover to mildly depressed to nearly 
monthly predicted values by UT day 11 April. HF users are advised 
to continue to use lower than the monthly predicted frequencies 
for the next 24 hours.

----------------------------------------------------------
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 ips.gov.au
Bureau of Meteorology
PO Box 1386                         WWW: http://www.sws.bom.gov.au
Haymarket NSW 1240  AUSTRALIA       FTP: ftp://ftp-out.sws.bom.gov.au
tel: +61 2 9213 8010                fax: +61 2 9213 8060 

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