[Ips-dhfpr] SWS Daily HF Prop Report - 23 March 19 issued 2330 UT on 23 Mar 2019 [SEC=UNCLASSIFIED]

Regional Warning Centre rwc at ips.gov.au
Sun Mar 24 10:30:21 EST 2019


SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/23 MARCH 2019 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (23 MARCH) 
Date   T index  Conditions    
23 Mar    -1    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Enhanced by 20% during local night.
   Niue Island Region:
      No data available during local day.
      No data available during local night.
   Northern Australian Region:
      Depressed by 15% during local day.
      Enhanced by 15% during local night.
   Southern Australian Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Enhanced by 30% over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Feb      -15
Mar      -12
Apr      -13


2. FORECAST (24 MARCH - 26 MARCH)
Date   T index  Conditions       MUFs                              
24 Mar     5    Fair             Near to 15% above predicted 
                                 monthly values
25 Mar   -15    Normal           Near predicted monthly values    
26 Mar   -15    Normal           Near predicted monthly values   

COMMENT: Mostly near predicted monthly MUFs were observed for 
Australian region on UT day 23 March, with mild depressions for 
Northern Australian region during local day. Similar to slightly 
improved MUF conditions are expected on UT day 24 March, due 
the expected onset of disturbed geomagnetic conditions associated 
with 20 March CME. On 25 March the HF propagation conditions 
are expected to degrade due to the predicted increase in the 
geomagnetic activity up to Storm levels.

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