[Ips-dhfpr] ASWFC Daily HF Prop Report - 17 November 22 issued 2330 UT on 17 Nov 2022 [SEC=OFFICIAL]

[Regional Warning Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/17 NOVEMBER 2022
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (17 NOVEMBER) 
Date   T index  Conditions    
17 Nov    93    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      Enhanced by 25% during local day.
      Enhanced by 25% during local night.
   Niue Island Region:
      Near predicted monthly values.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 30% 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 (18 NOVEMBER - 20 NOVEMBER)
Date   T index  Conditions       MUFs                              
18 Nov    85    Normal           Near predicted monthly values
19 Nov    80    Normal           Near predicted monthly values 
                                 to 15% depressed    
20 Nov    70    Normal-fair      Near predicted monthly values 
                                 to 15% depressed   

COMMENT: Maximum usable frequencies (MUFs) on UT day 17-Nov were 
generally near predicted monthly values, with 30% enhancements 
in the northern Australian region and 25% enhancements at Cocos 
islands. Sporadic-E was observed at most northern sites during 
local night hours. MUFs are expected to be near predicted monthly 
values to mildly enhanced over 18-19 Nov. Some depressions are 
expected in southern regions late 19-Nov and 20-Nov in response 
to anticipated geomagnetic activity from a moderately large 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