[Ips-whfpr] ASWFC Weekly Prop. Report (05 April 23) issued 0245 UT on 05 Apr 2023 [SEC=OFFICIAL]

[rwc]

SUBJ: ASWFC WEEKLY HF PROPAGATION REPORT
ISSUED ON 05 APRIL 2023 
FROM THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (29 MARCH - 04 APRIL)
Date   T index   Conditions        
29 Mar  137      Normal            
MUFS:
   Cocos Island Region:
      Enhanced by 35% during local day.
      Enhanced by 80% during local night.
      Enhanced by 40% after local dawn.
   Niue Island Region:
      Enhanced by 40% during local day.
      Enhanced by 40% during local night.
      Enhanced by 25% after local dawn.
   Northern Australian Region:
      Enhanced by 25% during local day.
      Enhanced by 25% during local night.
      Enhanced by 40% after local dawn.
   Southern Australian Region:
      Enhanced by 20% during local day.
      Enhanced by 20% during local night.
      Enhanced by 30% after local dawn.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

30 Mar  151      Normal            
MUFS:
   Cocos Island Region:
      Enhanced by 35% during local day.
      Enhanced by 85% during local night.
      Enhanced by 40% after local dawn.
   Niue Island Region:
      Enhanced by 40% during local day.
      Enhanced by 60% during local night.
      Enhanced by 40% after local dawn.
   Northern Australian Region:
      Enhanced by 30% during local day.
      Enhanced by 30% during local night.
      Enhanced by 40% after local dawn.
   Southern Australian Region:
      Enhanced by 35% during local day.
      Enhanced by 25% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

31 Mar  121      Normal            
MUFS:
   Cocos Island Region:
      Enhanced by 20-40% 
   Niue Island Region:
      Enhanced by 35-65%.
   Northern Australian Region:
      Enhanced by 25-35%.
   Southern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 20% during local night.
      Enhanced by 25% after local dawn.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Depressed by 20% over the UT day, with frequent 
      absorption observed at Mawson.

01 Apr  137      Normal            
MUFS:
   Cocos Island Region:
      Enhanced by 25-75%.
   Niue Island Region:
      Enhanced by 30-45%.
   Northern Australian Region:
      Enhanced by 25-30%.
   Southern Australian Region:
      Enhanced by 15% during local day.
      Enhanced by 15% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.
      Absorption observed at times at Mawson.

02 Apr  129      Normal            
MUFS:
   Cocos Island Region:
      Enhanced by 15-30% during local day.   
   Niue Island Region:
      Enhanced by 35-85% 
   Northern Australian Region:
      Enhanced by 25% during local day.
      Near predicted monthly values during local night.
   Southern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 15% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.
      Absorption observed at Mawson.

03 Apr  138      Normal            
MUFS:
   Cocos Island Region:
      Enhanced by 45% during local day.
      Enhanced by 70% during local night.
   Niue Island Region:
      Enhanced by 25% during local day.
      Enhanced by 20-40% during local night and after local dawn.
   Northern Australian Region:
      Enhanced by 20% during local day.
      Enhanced by 25-30% during local night and after local dawn.
   Southern Australian Region:
      Enhanced by 25% during local day.
      Enhanced by 20-30% during local night and after local dawn.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

04 Apr  128      Normal            
MUFS:
   Cocos Island Region:
      Enhanced by 20% during local day.
      Enhanced by 40% during local night.
      Enhanced by 20% after local dawn.
   Niue Island Region:
      Enhanced by 25% during local day.
      Near predicted monthly values during local night.
      Enhanced by 20% after local dawn.
   Northern Australian Region:
      Enhanced by 20% during local day.
      Enhanced by 20-25% during local night and after local dawn.
   Southern Australian Region:
      Enhanced by 25% during local day.
      Enhanced by 15-25% during local night and after local dawn.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

Predicted Monthly T index for April:  84

2. FORECAST (05 APRIL - 11 APRIL) 
MUFS: MUFs are expected to be near predicted monthly values to 20%
enhanced throughout the week. 

Propagation conditions: Normal HF propagation conditions are expected.
Minor SWFs are possible early in the week. 

T index: 84

3. OUTLOOK (12 APRIL - 12 MAY)
Degraded HF propagation conditions possible:
27-Apr to 03-May

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