[Ips-dhfpr] SWS Daily HF Prop Report - 18 February 20 issued 2341 UT on 18 Feb 2020

rwc rwc at ips.gov.au
Wed Feb 19 10:41:03 EST 2020


SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/18 FEBRUARY 2020 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (18 FEBRUARY) 
Date   T index  Conditions    
18 Feb    -4    Normal-fair    

Flares: none.

MUFs:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Enhanced by 15% during local night.
   Niue Island Region:
      Near predicted monthly values during local day.
      Enhanced by 30% during local night.
   Northern Australian Region:
      Depressed by 20% during local day.
      Enhanced by 40% during local night.
   Southern Australian Region:
      Mostly near predicted monthly values.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Depressed by 15% over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Jan      -20
Feb      -16
Mar      -16


2. FORECAST (19 FEBRUARY - 21 FEBRUARY)
Date   T index  Conditions       MUFs                              
19 Feb   -10    Normal-fair      Near predicted monthly values
20 Feb   -10    Normal-fair      Near predicted monthly values    
21 Feb   -10    Normal           Near predicted monthly values   

COMMENT: Maximum usable frequencies (MUFs) for UT day 18 February 
were mostly near predicted monthly values in the Australian region. 
Enhancements in MUFs were observed during nighttime in lower 
latitudes. Similar levels of ionospheric support are expected 
for the next three days, 19-21 February. Degraded conditions 
are possible during night time.

----------------------------------------------------------
For an explanation of some of the terms in this report, go to
http://www.sws.bom.gov.au, and follow links to Educational->
Glossary on Solar Terrestrial Terms.

Space Weather Services              email: asfc at bom.gov.au
Bureau of Meteorology
PO Box 1386                         WWW: http://www.sws.bom.gov.au
Haymarket NSW 1240  AUSTRALIA       FTP: ftp://ftp-out.sws.bom.gov.au
tel: +61 2 9213 8010                fax: +61 2 9213 8060 

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