[Ips-dhfpr] ASWFC Daily HF Prop Report - 13 December 22 issued 2331 UT on 13 Dec 2022 [SEC=OFFICIAL]

[Regional Warning Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/13 DECEMBER 2022
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (13 DECEMBER) 
Date   T index  Conditions    
13 Dec   122    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      Enhanced by 25-40%.
   Niue Island Region:
      Near predicted monthly values during local day.
      Enhanced by 20% during local night.
      Enhanced by 25% after local dawn.
   Northern Australian Region:
      Enhanced by 20-25%.
   Southern Australian Region:
      Enhanced by 15%.
   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
Nov      77
Dec      70
Jan      70


2. FORECAST (14 DECEMBER - 16 DECEMBER)
Date   T index  Conditions       MUFs                              
14 Dec    95    Normal           10 to 15% above predicted monthly 
                                 values
15 Dec    95    Normal           10 to 15% above predicted monthly 
                                 values    
16 Dec    95    Normal           10 to 15% above predicted monthly 
                                 values   

COMMENT: Maximum usable frequencies (MUFs) in the Australian 
region on UT day 13-Dec were mostly enhanced 15-20%, with Cocos 
Island MUFs strongly enhanced by up to 40%. Sporadic-E and spread 
F was observed at Hobart during local night hours. MUFs are expected 
to be generally near predicted monthly values to 15% enhanced 
over 14-16 Dec. Isolated minor fadeouts possible.

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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