[Ips-dhfpr] SWS Daily HF Prop Report - 31 May 21 issued 2330 UT on 31 May 2021

[Regional Warning Centre]

SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/31 MAY 2021 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (31 MAY) 
Date   T index  Conditions    
31 May    10    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      No data available.
   Niue Island Region:
      Depressed by 20% during local day.
      No data available during local night.
      Depressed by 20% after local dawn.
   Northern Australian Region:
      Depressed by 15% 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.

PCA Event : No event.

Monthly T index:
Month  T index
Apr      12
May      21
Jun      24


2. FORECAST (01 JUNE - 03 JUNE)
Date   T index  Conditions       MUFs                              
01 Jun    15    Normal           Near predicted monthly values
02 Jun    15    Normal           Near predicted monthly values    
03 Jun    10    Normal           Near predicted monthly values   

COMMENT: MUFs in the Australian region on UT day 31 May were 
mostly near predicted monthly values with some mild depressions 
in the Northern Australian and Niue Island regions during the 
local day. There were also some mild enhancements in the Southern 
Australian region during the local night. MUFs are expected to 
be mostly near predicted monthly values on UT days 1-3 June. 
Some mild MUF depressions are possible on 3 June due to the expected 
increase in geomagnetic activity on 1-2 June.

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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
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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