[Ips-dhfpr] ASWFC Daily HF Prop Report - 13 April 23 issued 2330 UT on 13 Apr 2023 [SEC=OFFICIAL]

[Regional Warning Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/13 APRIL 2023
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (13 APRIL) 
Date   T index  Conditions    
13 Apr   122    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      Enhanced by 35% during local day.
      Enhanced by 85% during local night.
   Niue Island Region:
      Near predicted monthly values.
   Northern Australian Region:
      Enhanced by 15% during local day.
      Enhanced by 45% during local night.
   Southern Australian Region:
      Enhanced by 20% during local day.
      Enhanced by 20-25% during local night and after local dawn.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Enhanced by 25% over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Mar      132
Apr      84
May      84


2. FORECAST (14 APRIL - 16 APRIL)
Date   T index  Conditions       MUFs                              
14 Apr   125    Normal           15-25% above predicted monthly 
                                 values
15 Apr   125    Normal           15-25% above predicted monthly 
                                 values    
16 Apr   125    Normal           15-25% above predicted monthly 
                                 values   

COMMENT: Maximum usable frequencies (MUFs) on UT day 13-Apr in 
the Australian region were enhanced by 15-45%. MUFs are expected 
to be 15-25% enhanced over 14-16 Apr. Mild degradations are possible 
during local night hours on 14-Apr, due to an expected mild increase 
in geomagnetic activity. Isolated 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