[Ips-dhfpr] ASWFC Daily HF Prop Report - 24 November 23 issued 2330 UT on 24 Nov 2023 [SEC=OFFICIAL]

[Regional Warning Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/24 NOVEMBER 2023
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (24 NOVEMBER) 
Date   T index  Conditions    
24 Nov   127    Normal         

Flares    Max     Fadeout    Freq.  Sectors
  M1.1    0934UT  possible   lower  Mid East/Indian

MUFs:
   Cocos Island Region:
      Near predicted monthly values.
   Niue Island Region:
      Near predicted monthly values during local day.
      Enhanced by 15% during local night.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 15% during local night.
   Antarctic Region (Casey/Davis/Mawson):
      Near predicted monthly values over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Oct      130
Nov      100
Dec      98


2. FORECAST (25 NOVEMBER - 27 NOVEMBER)
Date   T index  Conditions       MUFs                              
25 Nov   110    Normal           Near predicted monthly values
26 Nov   110    Fair             Near predicted monthly values    
27 Nov    90    Fair-normal      Depressed 10 to 15%/near predicted 
                                 monthly values   

COMMENT: Maximum usable frequencies (MUFs) were near predicted 
monthly values to 15% enhanced. Mild spread-F was observed at 
Hobart and Perth during local night hours. MUFs are expected 
to be near predicted monthly values to 15% enhanced on 25-Nov. 
Degraded HF communications quality may be experienced during 
local night hours on 26-Nov. MUFs may become depressed by 15% 
in the southern Australian region on 27-Nov due to anticipated 
geomagnetic activity.

----------------------------------------------------------
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