[Ips-dhfpr] ASWFC Daily HF Prop Report - 01 February 25 issued 2330 UT on 01 Feb 2025 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/01 FEBRUARY 2025
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (01 FEBRUARY) 
Date   T index  Conditions    
01 Feb   127    Normal-fair    

Flares    Max     Fadeout    Freq.  Sectors
  M2.4    1319UT  possible   lower  European

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

PCA Event : No event.

Monthly T index:
Month  T index
Jan      124
Feb      116
Mar      113


2. FORECAST (02 FEBRUARY - 04 FEBRUARY)
Date   T index  Conditions       MUFs                              
02 Feb   105    Normal-fair      Depressed 10 to 15%/near predicted 
                                 monthly values
03 Feb   115    Normal-fair      Near predicted monthly values    
04 Feb   115    Normal           Near predicted monthly values   

COMMENT: ASWFC SWF HF Communications Warning 14 was issued on 
31 January and is current for 1-3 Feb. Maximum usable frequencies 
(MUFs) in the Australian region were near predicted monthly values 
to 20% depressed in southern Australian regions on UT day 01-Feb. 
Mild spread-F was observed at Hobart during local night hours. 
MUFs are expected to be near predicted monthly values to 10-15% 
depressed on 02-Feb due to a mild increase in geomagnetic activity. 
MUFs are expected to be near predicted monthly values over 03-04 
Feb. Shortwave fadeouts are possible.

----------------------------------------------------------
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