[Ips-dhfpr] ASWFC Daily HF Prop Report - 16 May 24 issued 2330 UT on 16 May 2024 [SEC=OFFICIAL]

[Regional Warning Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/16 MAY 2024
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (16 MAY) 
Date   T index  Conditions    
16 May   136    Fair-normal         

Flares    Max     Fadeout    Freq.  Sectors
 M1/--    0804UT  possible   lower  Mid East/Indian

MUFs:
   Cocos Island Region:
      Enhanced by 15% during local day.
      Near predicted monthly values during local night.
   Niue Island Region:
      Enhanced by 20-40%.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Davis/Mawson):
      Depressed by 15% over the UT day.

PCA Event : 10MeV Proton/PCA Event Began at 1355UT 13/05, Ended at 1410UT 16/05

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


2. FORECAST (17 MAY - 19 MAY)
Date   T index  Conditions       MUFs                              
17 May   120    Normal           Near predicted monthly values
18 May   120    Normal           Near predicted monthly values    
19 May   120    Normal           Near predicted monthly values   

COMMENT: ASWFC SWF HF Communications Warning 53 was issued on 
16 May and is current for 16-18 May. Maximum usable frequencies 
(MUFs) on UT day 16-May were mostly near predicted monthly values. 
Spread F was observed at Hobart during local night hours. Enhanced 
MUFs were observed at Niue. MUFs are expected to be near predicted 
monthly values over 17-19 May. Isolated 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