[Ips-dhfpr] SWS Daily HF Prop Report - 22 February 19 issued 2330 UT on 22 Feb 2019 [SEC=UNCLASSIFIED]

Regional Warning Centre rwc at ips.gov.au
Sat Feb 23 10:30:21 EST 2019


SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/22 FEBRUARY 2019 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (22 FEBRUARY) 
Date   T index  Conditions    
22 Feb   -12    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Enhanced by 15% during local night.
   Niue Island Region:
      Mostly near predicted monthly values.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 40% during local night.
   Southern Australian Region:
      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      -27
Feb      -12
Mar      -13


2. FORECAST (23 FEBRUARY - 25 FEBRUARY)
Date   T index  Conditions       MUFs                              
23 Feb   -15    Normal           Near predicted monthly values
24 Feb   -15    Normal           Near predicted monthly values    
25 Feb   -15    Normal           Near predicted monthly values   

COMMENT: On UT day 22 February, MUFs were mostly near monthly 
predicted levels over the Australian region. In the Cocos Island 
and Northern Australian regions, mild to moderate enhancements 
were observed during the local night. The Antarctic region experienced 
minor depressions over the UT day. Sporadic E layers were seen 
across the region. During the next three UT days, 23-25 February, 
MUFs are expected to be mostly near monthly predicted levels. 
However, mild to moderate depressions are possible due to continued 
very low levels of ionising radiation from the Sun.

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