[Ips-dhfpr] ASWFC Daily HF Prop Report - 01 May 24 issued 2331 UT on 01 May 2024 [SEC=OFFICIAL]

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SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/01 MAY 2024
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (01 MAY) 
Date   T index  Conditions    
01 May   123    Normal         

Flares    Max     Fadeout    Freq.  Sectors
  M9.5 30/2346UT  probable   lower  West Pacific
  M1.9    1440UT  possible   lower  South American/
                                    Atlantic
  M1.8    2231UT  possible   lower  East Pacific/
                                    North American

MUFs:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Enhanced by 55% during local night.
   Niue Island Region:
      Near predicted monthly values.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Davis/Mawson):
      Near predicted monthly values over the UT day.

PCA Event : No event.

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


2. FORECAST (02 MAY - 04 MAY)
Date   T index  Conditions       MUFs                              
02 May   120    Normal           Near predicted monthly values
03 May   120    Normal           Near predicted monthly values    
04 May   120    Normal           Near predicted monthly values   

COMMENT: ASWFC SWF HF Communications Warning 43 was issued on 
30 April and is current for 1-2 May. Maximum usable frequencies 
(MUFs) on UT day 01-May were mostly near predicted monthly values 
in the Australian region. Spread-F was observed at Hobart and 
Darwin during local night hours. Equatorial scintillation was 
observed between 01/1330-1430UT at Darwin and Weipa. Amplitude 
scintillation was observed at Weipa 01/0410-0510UT, though this 
may be instrument noise. A shortwave fadeout was observed 20/2340-01/0019UT 
in association withe M9 flare. Isolated minor fadeouts possible 
on daylight HF circuits.

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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