[Ips-dhfpr] ASWFC Daily HF Prop Report - 24 February 23 issued 2331 UT on 24 Feb 2023 [SEC=OFFICIAL]

[Regional Warning Centre]

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

1. SUMMARY (24 FEBRUARY) 
Date   T index  Conditions    
24 Feb   125    Normal         

Flares    Max     Fadeout    Freq.  Sectors
  M1.2    1715UT  possible   lower  South American/
                                    Atlantic
  M3.7    2030UT  possible   lower  East Pacific/
                                    North American

MUFs:
   Cocos Island Region:
      Enhanced by 20% during local day.
      Enhanced by 20% during local night.
      Enhanced by 40% after local dawn.
   Niue Island Region:
      Near predicted monthly values during local day.
      Enhanced by 40% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 35% during local night.
      Enhanced by 40% after local dawn.
   Southern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 25% during local night.
      Enhanced by 25% after local dawn.
   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 (25 FEBRUARY - 27 FEBRUARY)
Date   T index  Conditions       MUFs                              
25 Feb   125    Normal           20-30% above predicted values
26 Feb   125    Normal-fair      20-30% above predicted values    
27 Feb   125    Normal-fair      20-30% above predicted values   

COMMENT: ASWFC SWF HF Communications Warning 22 was issued on 
24 February and is current for 25-27 Feb. Maximum usable frequencies 
(MUFs) in the Australian region on 24-Feb were 25-40% enhanced, 
particularly after local dawn. Sporadic-E was observed at Hobart 
during local night. MUFs are expected to be 20-30% above predicted 
monthly values over 25-27 Feb. Shortwave fadeouts are 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