[Ips-whfpr] IPS Weekly Prop. Report (10 April 13) issued 0206 UT on 10 Apr 2013

[rwc]

SUBJ: IPS WEEKLY HF PROPAGATION REPORT
ISSUED ON 10 APRIL 2013 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (03 APRIL - 09 APRIL)
Date   T index   Conditions        
03 Apr   91      Normal            
MUFS:
   Cocos Island Region:
      Near predicted monthly values with enhancements of
      25% 08-10, 19 UT and 35-60% 13-18 UT.
   Niue Island Region:
      Near predicted monthly values. Enhanced 30-55% 07-14
      UT and 25% 18-19 UT.
   Northern Australian Region:
      Near predicted monthly values. Enhanced 25-50% 06-14
      UT and 15-25% 18-22 UT at Darwin. Enhanced 20-25%
      05-08 UT at Townsville.
   Southern Australian and New Zealand Region:
      Mostly near predicted monthly values. Night spread F
      at Hobart.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values to 25% enhanced during
      local day and depressions to 25% local night.

04 Apr   92      Normal            
MUFS:
   Cocos Island Region:
      Near predicted monthly values. Enhanced 20-30%
      07-10 and 13-14 UT.
   Niue Island Region:
      Near predicted monthly values. Enhanced 20-25%
      05-06 and 14 UT.
   Northern Australian Region:
      Near predicted monthly values. Enhanced 25-40%
      10-14, 17-18 and 22 UT at Darwin. Enhanced 20-40% 16-18
      UT at Townsville.
   Southern Australian and New Zealand Region:
      Near predicted monthly values to 20% enhanced. Spread
      F at Hobart, mostly night time.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values to 30% enhanced.
      Depressions of 30% at Mawson 03-04 and 14 UT.

05 Apr   98      Normal            
MUFS:
   Cocos Island Region:
      Near predicted monthly values 00-05 and 20 UT. Enhanced
      40-70% 08-17 UT and 20-30% at other times.
   Niue Island Region:
      Near predicted monthly values.
   Northern Australian Region:
      Near predicted monthly values. Enhanced 25-50% 10-23 UT at
      Darwin. Enhanced 15-25% 07-10, 14-19, 23 UT at Townsville.
   Southern Australian and New Zealand Region:
      Mostly near predicted monthly values. Some enhancements to
      30%. Night spread F at Hobart.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values to 25% enhanced. Depressions to
      25% 16-19 UT.

06 Apr  110      Normal            
MUFS:
   Cocos Island Region:
      Near predicted monthly values 00-05 and 18-23 UT. Enhanced
      25-60% at other times.
   Niue Island Region:
      Near predicted monthly values to 20% enhanced. Enhanced 40%
      22-23 UT.
   Northern Australian Region:
      Enhanced 15-25% with enhancements of 40-65% 10-18 UT at Darwin.
      Near predicted monthly values with 20-25% enhancements 00-01,
      08-10 UT at Townsville.
   Southern Australian and New Zealand Region:
      Near predicted monthly values to 30% enhanced. Night spread F
      at Hobart.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Enhanced to 30% during local day. Near predicted monthly values
      to 20% depressed during local night.

07 Apr  106      Normal            
MUFS:
   Cocos Island Region:
      Near predicted monthly values. Enhanced 15-30% 05-08,
      19 UT. Enhanced 40-70% 09-18 UT.
   Niue Island Region:
      Near predicted monthly values with enhancements 20-30%
      00-04, 06-07 and 22-23 UT. Depressions 15-20% 13-17 UT.
   Northern Australian Region:
      Near predicted monthly values. Enhancements 20-40% 09-13
      and 17-18 UT.
   Southern Australian and New Zealand Region:
      Mostly 10-30% above predicted monthly values.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Enhanced to 30% during local day. Mostly near predicted
      monthly values during local night.

08 Apr  100      Normal            
MUFS:
   Cocos Island Region:
      Enhanced by 15% during local day.
      Enhanced by 80% during local night.
   Niue Island Region:
      Enhanced by 15% during local day.
      Near predicted monthly values during local night.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian and New Zealand Region:
      Enhanced by 15% during local day.
      Near predicted monthly values during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Enhanced by 15% over the UT day.

09 Apr  103      Normal            
MUFS:
   Cocos Island Region:
      Enhanced by 15% during local day.
      Enhanced by 65% during local night.
   Niue Island Region:
      Enhanced by 20% during local day.
      Enhanced by 40% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 25% during local night.
   Southern Australian and New Zealand Region:
      Enhanced by 20% during local day.
      Enhanced by 15% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Enhanced by 20% over the UT day.

Predicted Monthly T index for April:  68

2. FORECAST (10 APRIL - 16 APRIL) 
MUFS: MUFs near predicted monthly values with periods of some enhancements.

Propagation conditions: Mostly normal. SWFs possible.

T index: 100

3. OUTLOOK (17 APRIL - 17 MAY)
Degraded HF propagation conditions possible:
24 to 26 Apr

PLEASE NOTE:
Space weather conditions can frequently be determined by short 
timescale events that cannot be forecast a week in advance,
particularly at solar maximum.

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 

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