[Ips-dhfpr] SWS Daily HF Prop Report - 21 April 18 issued 2342 UT on 21 Apr 2018 [SEC=UNCLASSIFIED]

rwc rwc at ips.gov.au
Sun Apr 22 09:42:53 EST 2018


SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/21 APRIL 2018 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (21 APRIL) 
Date   T index  Conditions    
21 Apr    -2    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      No data available during local day.
      No data available during local night.
   Niue Island Region:
      Depressed by 15% during local day.
      Near predicted monthly values during local night.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian Region:
      Depressed by 25% during local day.
      Depressed by 20% 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 (22 APRIL - 24 APRIL)
Date   T index  Conditions       MUFs                              
22 Apr    -5    Normal           Near predicted monthly values/depressed 
                                 15 to 25%
23 Apr     2    Normal           Near predicted monthly values    
24 Apr     2    Normal           Near predicted monthly values   

COMMENT: On UT day 21 April, MUFs were mainly near predicted 
monthly values over most of the Aus/NZ region. There were minor 
depressions in the Niue Island Region during the local day and 
moderate depressions in the Southern Australian Region during 
the local day and the local night. There were cases of Sporadic 
E blanketing. MUFs may experience minor to moderate depressions 
on 22 April due to recent geomagnetic activity, returning to 
near predicted monthly values on 23-24 April.

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