[Ips-dhfpr] ASWFC Daily HF Prop Report - 18 November 22 issued 2331 UT on 18 Nov 2022 [SEC=OFFICIAL]

[Regional Warning Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/18 NOVEMBER 2022
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (18 NOVEMBER) 
Date   T index  Conditions    
18 Nov    89    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Enhanced by 15% during local night.
   Niue Island Region:
      Enhanced by 15-25%.
   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/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Oct      83
Nov      70
Dec      70


2. FORECAST (19 NOVEMBER - 21 NOVEMBER)
Date   T index  Conditions       MUFs                              
19 Nov    80    Normal-fair      Near predicted monthly values
20 Nov    70    Normal-fair      Depressed 10 to 15%/near predicted 
                                 monthly values    
21 Nov    70    Normal-fair      Depressed 10 to 15%/near predicted 
                                 monthly values   

COMMENT: Maximum usable frequencies (MUFs) on UT day 18-Nov were 
generally near predicted monthly values, with enhanced conditions 
observed at Niue. Southern Australian region MUFs were very mildly 
depressed after local dawn this morning and MUFs are generally 
expected to be mostly near predicted monthly values for today. 
Mild with the chance for moderate depressions are expected in 
the southern Australian region 20-Nov and 21-Nov in response 
to anticipated geomagnetic activity induced from a coronal hole 
high speed wind stream.

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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