[Ips-dhfpr] ASWFC Daily HF Prop Report - 15 May 24 issued 2338 UT on 15 May 2024 [SEC=OFFICIAL]

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SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/15 MAY 2024
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (15 MAY) 
Date   T index  Conditions    
15 May   123    Normal         

Flares    Max     Fadeout    Freq.  Sectors
  X3.4    0837UT  probable   all    Mid East/Indian
  X2.9    1438UT  probable   all    South American/Atlantic
  
MUFs:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Enhanced by 35% during local night.
   Niue Island Region:
      Near predicted monthly values during local day.
      Enhanced by 20% during local night.
   Northern Australian Region:
      Mostly near predicted monthly values.
   Southern Australian Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Davis/Mawson):
      Near predicted monthly values over the UT day.
      Proton event in progress, increased absorption observed.

PCA Event : 10MeV Proton/PCA Event Began 13 05 2024 1355UT and is in progress

Monthly T index:
Month  T index
Apr      125
May      114
Jun      116


2. FORECAST (16 MAY - 18 MAY)
Date   T index  Conditions       MUFs                              
16 May   120    Normal-fair      Near predicted monthly values
17 May   120    Normal           Near predicted monthly values    
18 May   120    Normal           Near predicted monthly values   

COMMENT: Maximum usable frequencies (MUFs) on UT day 15-May were 
mostly near predicted monthly values. Spread F was observed at 
Hobart during local night hours. MUFs are expected to be near 
predicted monthly values over 16-18 May, with the chance of mild 
depressions in the southern Australian region due to anticipated 
geomagnetic activity. Shortwave fadeouts are expected.

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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