[Ips-dhfpr] SWS Daily HF Prop Report - 09 December 19 issued 2352 UT on 09 Dec 2019

rwc rwc at ips.gov.au
Tue Dec 10 10:52:15 EST 2019


SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/09 DECEMBER 2019 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (09 DECEMBER) 
Date   T index  Conditions    
09 Dec   -25    Normal         

Flares: none

MUFs:
   Cocos Island Region:
      Depressed by 20% during local day.
      Near predicted monthly values during local night.
   Niue Island Region:
      Near predicted monthly values during local day.
      Depressed by 25% during local night.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian Region:
      Depressed by 15% during local day.
      Near predicted monthly values during local night.
   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
Nov      -30
Dec      -16
Jan      -17


2. FORECAST (10 DECEMBER - 12 DECEMBER)
Date   T index  Conditions       MUFs                              
10 Dec   -25    Normal           Near predicted monthly values
11 Dec   -25    Normal           Near predicted monthly values    
12 Dec   -25    Normal           Near predicted monthly values   

COMMENT: Maximum usable frequencies (MUFs) were mostly near predicted 
monthly values with only minor depressed periods for Equatorial 
and Southern AUS/NZ regions. Notable sporadic E observed for 
Northern AUS and Southern AUS stations and mostly normal HF conditions 
observed for Antarctic regions. Similar levels of ionospheric 
support are expected for the next 3days with MUFs ranging from 
near predicted monthly values to Moderately depressed for Equatorial, 
Northern AUS and Southern AUS/NZ regions.

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