[Ips-dhfpr] SWS Daily HF Prop Report - 18 April 18 issued 2343 UT on 18 Apr 2018 [SEC=UNCLASSIFIED]

rwc rwc at ips.gov.au
Thu Apr 19 09:43:05 EST 2018


SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/18 APRIL 2018 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (18 APRIL) 
Date   T index  Conditions    
18 Apr     8    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      No data available during local day.
      No data available during local night.
   Niue Island Region:
      Depressed by 20% during local day.
      Near predicted monthly values during local night.
   Northern Australian Region:
      Depressed by 15% during local day.
      Depressed by 15% during local night.
   Southern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 25% 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
Mar      2
Apr      2
May      1


2. FORECAST (19 APRIL - 21 APRIL)
Date   T index  Conditions       MUFs                              
19 Apr     7    Normal           Near predicted monthly values
20 Apr    -5    Normal           15 to 25% below predicted monthly 
                                 values    
21 Apr    -5    Normal           15 to 25% below predicted monthly 
                                 values   

COMMENT: On UT day 18 April, MUFs were near predicted monthly 
values over most of the Aus/NZ region. There were minor depressions 
in the Northern Australian region during the local day and night, 
and minor depressions in the Niue Island Region during the local 
night. There were a few cases of Sporadic E blanketing. MUFs 
are expected to be mostly near predicted monthly levels on 19 
April, with minor to moderate depressions possible on 20-21 April 
due to forecast geomagnetic activity.

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