[Ips-dhfpr] ASWFC Daily HF Prop Report - 01 May 23 issued 2331 UT on 01 May 2023 [SEC=OFFICIAL]

[Regional Warning Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/01 MAY 2023
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (01 MAY) 
Date   T index  Conditions    
01 May    91    Normal         

Flares    Max     Fadeout    Freq.  Sectors
  M1.1    0121UT  possible   lower  West Pacific
  M7.1    1309UT  probable   lower  European

MUFs:
   Cocos Island Region:
      Enhanced by 35% during local day.
      Near predicted monthly values during local night.
   Niue Island Region:
      Mostly near predicted monthly values.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Apr      120
May      84
Jun      85


2. FORECAST (02 MAY - 04 MAY)
Date   T index  Conditions       MUFs                              
02 May    95    Normal-fair      Near predicted monthly values
03 May    95    Normal-fair      Near predicted monthly values    
04 May    95    Normal           Near predicted monthly values   

COMMENT: ASWFC SWF HF Communications Warning 41 was issued on 
1 May and is current for 1-3 May. Maximum usable frequencies 
(MUFs) on UT day 01-May in the Australian region were near predicted 
monthly values. Spread F was observed at Hobart during local 
night hours. Sporadic E was observed at Brisbane and Townsville 
during local night hours. MUFs are expected to be near predicted 
monthly values over 02-04 May. 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