[Ips-dhfpr] SWS Daily HF Prop Report - 30 January 21 issued 2337 UT on 30 Jan 2021

[rwc]

SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/30 JANUARY 2021 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (30 JANUARY) 
Date   T index  Conditions    
30 Jan    -3    Normal-fair    

Flares: none.

MUFs:
   Cocos Island Region:
      Depressed by 15% during local day.
      Near predicted monthly values during local night.
   Niue Island Region:
      No data available.
   Northern Australian Region:
      Depressed by 25% during local day.
      Near predicted monthly values during local night.
   Southern Australian Region:
      Near predicted monthly values.
   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
Dec      11
Jan      9
Feb      11


2. FORECAST (31 JANUARY - 02 FEBRUARY)
Date   T index  Conditions       MUFs                              
31 Jan     0    Normal           Near predicted monthly values
01 Feb     5    Normal-fair      Near predicted monthly values    
02 Feb   -20    Normal           Depressed 20%/near predicted 
                                 monthly values   

COMMENT: SWS HF Communications Warning 2 was issued on 30 January 
and is current for 30-31 Jan. On UT day 30 January, MUFs in lower 
and mid latitudes of the Australian region were moderately depressed 
in the first half of the 24 hours, then near predicted monthly 
levels. Sporadic E was observed, strong at times. MUFs in the 
Australian region are expected to be near predicted monthly values 
on 31 January to 01 February, although daytime depressions may 
continue. Sporadic E occurrences are likely. Depressions likely 
on 02 February in response to expected geomagnetic activity.

----------------------------------------------------------
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
Bureau of Meteorology
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Haymarket NSW 1240  AUSTRALIA       FTP: ftp://ftp-out.sws.bom.gov.au
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