[Ips-dhfpr] ASWFC Daily HF Prop Report - 08 February 23 issued 2331 UT on 08 Feb 2023 [SEC=OFFICIAL]

[Regional Warning Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/08 FEBRUARY 2023
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (08 FEBRUARY) 
Date   T index  Conditions    
08 Feb    91    Normal         

Flares    Max     Fadeout    Freq.  Sectors
  M3.9 07/2258UT  possible   lower  East Pacific/
                                    North American
  M6.4 07/2307UT  probable   lower  West Pacific
  M2.1    0253UT  possible   lower  E. Asia/Aust.
  M1.6    1603UT  possible   lower  South American/
                                    Atlantic
  M1.5    2012UT  possible   lower  East Pacific/
                                    North American

MUFs:
   Cocos Island Region:
      Mostly near predicted monthly values.
      Enhanced by 25% after local dawn.
   Niue Island Region:
      Enhanced by 45% during local day.
      Near predicted monthly values during local night.
   Northern Australian Region:
      Enhanced by 20% during local day.
      Enhanced by 15% during local night.
   Southern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 15% during local night.
   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
Jan      119
Feb      75
Mar      76


2. FORECAST (09 FEBRUARY - 11 FEBRUARY)
Date   T index  Conditions       MUFs                              
09 Feb    95    Normal           Near predicted monthly values
10 Feb    95    Normal           Near to 15% above predicted 
                                 monthly values    
11 Feb    95    Normal           Near to 15% above predicted 
                                 monthly values   

COMMENT: ASWFC SWF HF Communications Warning 14 was issued on 
7 February and is current for 8-10 Feb. Maximum usable frequencies 
(MUFs) in the Southern Australian region on UT day 8-Feb were 
at near predicted monthly values. MUFs in the Northern Australian 
region were enhanced by up to 20%. Sporadic E was observed at 
Hobart and Canberra during local night. MUFs are expected to 
be near predicted monthly values on 9-Feb, with a chance of depressed 
conditions on due to possible increased geomagnetic activity. 
MUFs are expected to be near predicted monthly values to 15% 
enhanced over 10-11 Feb. Sporadic E is possible during local 
night, affecting lower frequencies. Shortwave fadeouts are probable.

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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