[Ips-dhfpr] ASWFC Daily HF Prop Report - 31 May 24 issued 2330 UT on 31 May 2024 [SEC=OFFICIAL]

[ASWFC]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/31 MAY 2024
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (31 MAY) 
Date   T index  Conditions    
31 May   122    Normal         

Flares    Max     Fadeout    Freq.  Sectors
  M1.0    1120UT  possible   lower  European
  X1.1    2203UT  probable   all    East Pacific/
                                    North American

MUFs:
   Cocos Island Region:
      Enhanced by 15% during local day.
      Depressed by 20% during local night.
   Niue Island Region:
      Near predicted monthly values.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Depressed by 15% during local night.
   Southern Australian Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Davis/Mawson):
      Depressed by 25% over the UT day.

PCA Event : No event.

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


2. FORECAST (01 JUNE - 03 JUNE)
Date   T index  Conditions       MUFs                              
01 Jun   115    Normal-fair      Near predicted monthly values
02 Jun   115    Normal           Near predicted monthly values    
03 Jun   115    Normal           Near predicted monthly values   

COMMENT: Maximum usable frequencies (MUFs) in the Australian 
region on UT day 31-May were generally near predicted monthly 
values, with northern Australian region MUFs 15% depressed during 
local night hours. Spread F was observed at Hobart and Canberra 
during local night hours. MUFs are expected to be near predicted 
monthly values over 01-03 Jun. 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