[Ips-dhfpr] SWS Daily HF Prop Report - 09 April 18 issued 2330 UT on 09 Apr 2018 [SEC=UNCLASSIFIED]

[Regional Warning Centre]

SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/09 APRIL 2018 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (09 APRIL) 
Date   T index  Conditions    
09 Apr    13    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.
      Enhanced by 20% after local dawn.
   Northern Australian Region:
      Depressed by 25% during local day.
      Near predicted monthly values during local night.
   Southern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 40% 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 (10 APRIL - 12 APRIL)
Date   T index  Conditions       MUFs                              
10 Apr    12    Normal-fair      Near predicted monthly values
11 Apr     0    Normal-fair      Near predicted monthly values    
12 Apr     0    Normal           Near predicted monthly values   

COMMENT: HF conditions were variable on UT day 9 April. MUFs 
were mildly depressed over the Northern Australian region during 
local day, enhanced over the Southern Australian region during 
local night, otherwise MUFs were near predicted monthly values. 
There were a few cases of Sporadic E blanketing over the Australian 
Ionosonde sites. The two day outlook (10-11 April) is for MUFs 
to be mostly near predicted monthly levels. Mild enhancements 
are also likely in response to the expected increase in geomagnetic 
activity.

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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
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