[Ips-dhfpr] SWS Daily HF Prop Report - 19 February 21 issued 2330 UT on 19 Feb 2021

[Regional Warning Centre]

SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/19 FEBRUARY 2021 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (19 FEBRUARY) 
Date   T index  Conditions    
19 Feb    -5    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Enhanced by 25% during local night.
   Niue Island Region:
      No data available.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian Region:
      Depressed by 15% during local day.
      Near predicted monthly values during local night.
      Depressed by 25% after local dawn.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Jan      2
Feb      12
Mar      15


2. FORECAST (20 FEBRUARY - 22 FEBRUARY)
Date   T index  Conditions       MUFs                              
20 Feb   -20    Normal-fair      15 to 20% below predicted monthly 
                                 values
21 Feb   -15    Normal-fair      Depressed 15%/near predicted 
                                 monthly values    
22 Feb    -8    Normal           Near predicted monthly values   

COMMENT: On UT day 19 February, MUFs in the Australian region 
were mostly near predicted monthly values with some mild depressions 
in the Southern Australian region during local day and after 
local dawn. Sporadic E layers were observed, strong at times. 
MUFs in the Australian region are expected to be mildly to moderately 
depressed on UT days 20-21 February and mostly near predicted 
monthly values on 22 February. Sporadic E occurrences are likely 
to continue.

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For an explanation of some of the terms in this report, go to
http://www.sws.bom.gov.au, and follow links to Educational->
Glossary on Solar Terrestrial Terms.

Space Weather Services              email: asfc at bom.gov.au
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