[Ips-whfpr] ASWFC Weekly Prop. Report (06 September 23) issued 0250 UT on 06 Sep 2023 [SEC=OFFICIAL]

[rwc]

SUBJ: ASWFC WEEKLY HF PROPAGATION REPORT
ISSUED ON 06 SEPTEMBER 2023 
FROM THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (30 AUGUST - 05 SEPTEMBER)
Date   T index   Conditions        
30 Aug  100      Normal-fair       
MUFS:
   Cocos Island Region:
      Enhanced by 40% during local day.
      Enhanced by 45% during local night.
   Niue Island Region:
      Mostly near predicted monthly values.
      Enhanced by 25% after local dawn.
   Northern Australian Region:
      Mostly near predicted monthly values.
   Southern Australian Region:
      Mostly near predicted monthly values.
   Antarctic Region (Casey/Davis/Mawson):
      Enhanced by 20% over the UT day.

31 Aug  111      Normal            
MUFS:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Enhanced by 20% during local night.
   Niue Island Region:
      Enhanced by 15% during local day.
      Enhanced by 70% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 35% during local night.
   Southern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 20% during local night.
   Antarctic Region (Casey/Davis/Mawson):
      Enhanced by 20% over the UT day.

01 Sep  117      Normal            
MUFS:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Depressed by 15% during local night.
   Niue Island Region:
      Enhanced by 15-40%.
   Northern Australian Region:
      Enhanced by 20%.
   Southern Australian Region:
      Enhanced by 15-20%.
   Antarctic Region (Casey/Davis/Mawson):
      Enhanced by 15% over the UT day.

02 Sep  109      Normal-fair       
MUFS:
   Cocos Island Region:
      Enhanced by 30% during local day.
      Near predicted monthly values during local night.
   Niue Island Region:
      Enhanced by 15% during local day.
      Near predicted monthly values during local night.
      Enhanced by 35% after local dawn.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 20% during local night.
      Enhanced 15% after local dawn.
   Southern Australian Region:
      Enhanced by 15% during local day.
      Depressed 15-20% after local dawn.
   Antarctic Region (Casey/Davis/Mawson):
      Near predicted monthly values over the UT day,
      with spread F observed,

03 Sep   76      Fair              
MUFS:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Depressed by 20% during local night.
   Niue Island Region:
      Enhanced by 20-30%.
   Northern Australian Region:
      Near predicted monthly values to 15% enhanced.
   Southern Australian Region:
      Depressed by 20-25% local day.
      Near predicted monthly values to 15-20% depressed,
      local night.
   Antarctic Region (Casey/Davis/Mawson):
      Depressed by 35% over the UT day.

04 Sep   92      Normal            
MUFS:
   Cocos Island Region:
      Enhanced by 25% during local day.
      Enhanced by 35% during local night.
   Niue Island Region:
      Near predicted monthly values during local day.
      Enhanced by 15% during local night.
   Northern Australian Region:
      Mostly near predicted monthly values.
   Southern Australian Region:
      Mostly near predicted monthly values.
   Antarctic Region (Casey/Davis/Mawson):
      Depressed by 20% over the UT day.

05 Sep   92      Normal            
MUFS:
   Cocos Island Region:
      Depressed by 15% during local day.
      Depressed by 15% during local night.
   Niue Island Region:
      Enhanced by 25% during local day.
      Enhanced by 80% during local night.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Davis/Mawson):
      Near predicted monthly values over the UT day.

Predicted Monthly T index for September:  96

2. FORECAST (06 SEPTEMBER - 12 SEPTEMBER) 
MUFS: MUFs near predicted monthly values tending to 15% enhanced by the end of
the week.

Propagation conditions: Normal. SWFs probable early in week.

T index: 96
ASWFC SWF HF Communications Warning 87 was issued on 5 September 
and is current for 6-8 Sep.

3. OUTLOOK (13 SEPTEMBER - 13 OCTOBER)
Degraded HF propagation conditions possible:
23-24 Sep, 28-30 Sep.

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
https://www.sws.bom.gov.au, and follow links to Educational->
Glossary on Solar Terrestrial Terms.

Australian Space Weather Forecasting Centre
Bureau of Meteorology
ASWFC at bom.gov.au
www.bom.gov.au | www.sws.bom.gov.au