[Ips-whfpr] ASWFC Weekly Prop. Report (25 February 26) issued 0050 UT on 25 Feb 2026 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC WEEKLY HF PROPAGATION REPORT
ISSUED ON 25 FEBRUARY 2026 
FROM THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (18 FEBRUARY - 24 FEBRUARY)
Date   T index   Conditions        
18 Feb   87      Normal            
MUFS:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Enhanced by 15% during local night.
   Niue Island Region:
      Enhanced by 35% during local day.
      Enhanced by 20% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 15% during local night.
   Southern Australian Region:
      Depressed by 15% during local day.
      Near predicted monthly values during local night.
   Antarctic Region (Casey/Davis/Mawson):
      Near predicted monthly values over the UT day.

19 Feb   95      Normal-fair       
MUFS:
   Cocos Island Region:
      Enhanced by 15% during local day.
      Enhanced by 25% during local night.
   Niue Island Region:
      Near predicted monthly values during local day.
      Depressed by 15% 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.

20 Feb  109      Normal            
MUFS:
   Cocos Island Region:
      Enhanced by 15% during local day.
      Near predicted monthly values during local night.
   Niue Island Region:
      Enhanced by 25% during local day.
      Near predicted monthly values during local night.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 20% during local night.
   Southern Australian Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Davis/Mawson):
      Near predicted monthly values over the UT day.

21 Feb   95      Normal            
MUFS:
   Cocos Island Region:
      Mostly near predicted monthly values.
   Niue Island Region:
      Enhanced by 30% during local day.
      Near predicted monthly values during local night.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian Region:
      Mostly near predicted monthly values.
   Antarctic Region (Casey/Davis/Mawson):
      Near predicted monthly values over the UT day.

22 Feb   89      Fair              
MUFS:
   Cocos Island Region:
      Enhanced by 30% during local day.
      Near predicted monthly values during local night.
      Enhanced by 20% after local dawn.
   Niue Island Region:
      Near predicted monthly values.
   Northern Australian Region:
      Mostly near predicted monthly values.
      Depressed by 30% after local dawn.
   Southern Australian Region:
      Mostly near predicted monthly values.
      Depressed by 25% after local dawn.
   Antarctic Region (Casey/Davis/Mawson):
      Depressed by 15% over the UT day.

23 Feb   46      Normal-fair       
MUFS:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Depressed by 20% during local night.
   Niue Island Region:
      Enhanced by 40% during local day.
      Enhanced by 55% during local night.
   Northern Australian Region:
      Depressed by 40% during local day.
      Depressed by 30% during local night.
   Southern Australian Region:
      Depressed by 20% during local day.
      Near predicted monthly values during local night.
      Depressed by 25% after local dawn.
   Antarctic Region (Casey/Davis/Mawson):
      Near predicted monthly values over the UT day.

24 Feb   77      Normal-fair       
MUFS:
   Cocos Island Region:
      Enhanced by 15% during local day.
      Enhanced by 15% during local night.
   Niue Island Region:
      Enhanced by 20% during local day.
      Enhanced by 25% during local night.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian Region:
      Depressed by 15% during local day.
      Depressed by 15% during local night.
   Antarctic Region (Casey/Davis/Mawson):
      Near predicted monthly values over the UT day.

Predicted Monthly T index for February:  88

2. FORECAST (25 FEBRUARY - 03 MARCH) 
MUFS: 
MUFs in the Australian region are expected to be near predicted
monthly values over the week of 25-Feb to 03-Mar. Depressions
of up to 15% are possible in the southern Australian region on
25-Feb due to recent geomagnetic activity. Further mild depressions
are possible over the week if the solar disk remains spotless.

Propagation conditions:
Mostly normal propagation conditions are expected over the week
of 25-Feb to 03-Mar. Degraded conditions are possible in the 
southern hemisphere.

T index: 88

3. OUTLOOK (04 MARCH - 03 APRIL)
Degraded HF propagation conditions possible:
4 Mar,  12-15 Mar,  23-24 Mar,  31 Mar to 1 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
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