[Ips-whfpr] IPS Weekly Prop. Report (17 April 02)

[rwc]

SUBJ: IPS WEEKLY HF PROPAGATION REPORT
ISSUED AT 17/0200Z APRIL 2002 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (10 APRIL - 16 APRIL)
Date   T index   Conditions        
10 Apr  152      Normal            
MUFS:
   Equatorial PNG Region:
      Near predicted monthly values during local day,
      Enhanced by 20% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day,
      Enhanced by 45% during local night.
   Southern Australian and New Zealand Region:
      Enhanced by 15-20%.
   Antarctic Region (Casey/Scott Base):
      Enhanced by 25% over the UT day.


11 Apr  153      Normal-fair       
MUFS:
   Equatorial PNG Region:
      Near predicted monthly values during local day,
      Enhanced by 15% during local night.
      Enhanced by 20% after local dawn.
   Northern Australian Region:
      Near predicted monthly values during local day,
      Enhanced by 30% during local night.
      Enhanced by 15% after local dawn.
   Southern Australian and New Zealand Region:
      Enhanced by 15-35%.
   Antarctic Region (Casey/Scott Base):
      Enhanced by up to 50% over the UT day.


12 Apr  162      Normal            
MUFS:
   Equatorial PNG Region:
      Near predicted monthly values during local day,
      Enhanced by 30% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day,
      Enhanced by 40% during local night.
   Southern Australian and New Zealand Region:
      Enhanced by 20% during local day,
      Enhanced by 40% during local night.
   Antarctic Region (Casey/Scott Base):
      Enhanced by 40% over the UT day.


13 Apr  160      Normal-fair       
MUFS:
   Equatorial PNG Region:
      Enhanced by 15%.
   Northern Australian Region:
      Near predicted monthly values during local day,
      Enhanced by 35% during local night.
   Southern Australian and New Zealand Region:
      Enhanced by 20%.
   Antarctic Region (Casey/Scott Base):
      Enhanced by 40% over the UT day.


14 Apr  161      Normal-fair       
MUFS:
   Equatorial PNG Region:
      Enhanced by 20% during local day,
      Depressed by 15% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day,
      Enhanced by 35% during local night.
   Southern Australian and New Zealand Region:
      Enhanced by 20-30%.
   Antarctic Region (Casey/Scott Base):
      Enhanced by 45% over the UT day.


15 Apr  156      Normal-fair       
MUFS:
   Equatorial PNG Region:
      Near predicted monthly values during local day,
      Enhanced by 20% during local night.
   Northern Australian Region:
      Enhanced by 15-40%.
   Southern Australian and New Zealand Region:
      Enhanced by 20-30%.
   Antarctic Region (Casey/Scott Base):
      Enhanced by 25% over the UT day.


16 Apr  151      Normal            
MUFS:
   Equatorial PNG Region:
      Near predicted monthly values during local day,
      Enhanced by 40% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day,
      Enhanced by 15-30%.
   Southern Australian and New Zealand Region:
      Enhanced by 15-30%.
   Antarctic Region (Casey/Scott Base):
      Enhanced by 20% over the UT day.


Predicted Monthly T index for April: 113
2. FORECAST (17 APRIL - 23 APRIL) 
MUFS: mildly depressed/degraded late 17 Apr/early 18 Apr. Otherwise
MUFs expected to be near to 20% above normal.
Propagation conditions: Fair 17-18Apr otherwise good.
T index:  150
COMMENT: IPS HF Communications Warning 14 was issued on 17 April 
and is current for interval  17-18 April. 
3. OUTLOOK (24 APRIL - 24 MAY)
Degraded HF propagation conditions possible:
26-29 Apr
   04 May
09-11 May


PEASE NOTE:
At this time of the solar cycle, space weather conditions
are frequently determined by short timescale events, not
able to be forecasted a week in advance.

IPS Radio and Space Services      | email: asfc at ips.gov.au
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