[Ips-dhfpr] SWS Daily HF Prop Report - 20 March 21 issued 2341 UT on 20 Mar 2021

[rwc]

SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/20 MARCH 2021 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (20 MARCH) 
Date   T index  Conditions    
20 Mar    17    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      No data available.
   Niue Island Region:
      No data available.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 40% 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
Feb      -1
Mar      16
Apr      20


2. FORECAST (21 MARCH - 23 MARCH)
Date   T index  Conditions       MUFs                              
21 Mar   -15    Fair-normal      Near predicted monthly values/depressed 
                                 10 to 30%
22 Mar   -15    Fair-normal      Near predicted monthly values/depressed 
                                 10 to 30%    
23 Mar   -10    Normal-fair      Near predicted monthly values/depressed 
                                 10 to 20%   

COMMENT: SWS HF Communications Warning 10 was issued on 19 March 
and is current for 20-22 Mar. On UT day 20 March, MUFs in the 
Australian region were mostly near predicted monthly values. 
Enhanced MUFs observed in the Northern Australian region local 
night. Sporadic E was observed at times at some stations. Mild 
to moderate MUF depressions are possible on UT days 21-23 March 
in response to forecast 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
tel: +61 2 9213 8010                fax: +61 2 9213 8060 

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