[Ips-dhfpr] ASWFC Daily HF Prop Report - 20 November 22 issued 2331 UT on 20 Nov 2022 [SEC=OFFICIAL]

[Regional Warning Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/20 NOVEMBER 2022
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (20 NOVEMBER) 
Date   T index  Conditions    
20 Nov    81    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      Enhanced by 20% during local day.
      Enhanced by 15% during local night.
   Niue Island Region:
      Near predicted monthly values.
   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 (21 NOVEMBER - 23 NOVEMBER)
Date   T index  Conditions       MUFs                              
21 Nov    65    Normal-fair      Near predicted monthly values 
                                 to 10-15% depressed
22 Nov    60    Normal           Near predicted monthly values 
                                 to 15% depressed    
23 Nov    70    Normal           Near predicted monthly values   

COMMENT: Maximum usable frequencies (MUFs) on UT day 20-Nov were 
mostly near predicted monthly values. Sporadic-E was observed 
at most sites during local night hours. Mildly degraded ionospheric 
conditions were observed At Darwin and Learmonth during local 
night hours. MUFs are generally expected to be at predicted monthly 
values over 21-23 Nov, with mild depressions possible in local 
night hours to high latitude regions in response to anticipated 
geomagnetic activity from a coronal hole.

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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