[Ips-dhfpr] SWS Daily HF Prop Report - 22 May 18 issued 2336 UT on 22 May 2018 [SEC=UNCLASSIFIED]

[rwc]

SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/22 MAY 2018 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (22 MAY) 
Date   T index  Conditions    
22 May     5    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      No data available.
   Niue Island Region:
      Depressed by 15% during local day.
      Near predicted monthly values during local night.
   Northern Australian Region:
      Depressed by 15% during local day.
      Near predicted monthly values 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):
      Enhanced by 30% over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Apr      7
May      1
Jun      0


2. FORECAST (23 MAY - 25 MAY)
Date   T index  Conditions       MUFs                              
23 May    -5    Normal           Near predicted monthly values
24 May     0    Normal           Near predicted monthly values    
25 May     0    Normal           Near predicted monthly values   

COMMENT: MUFs were mostly near predicted monthly values for most 
AUS/NZ regions on UT day 22 May. Expect mostly near predicted 
monthly values for the next three days (23 - 25 May). The ionospheric 
support is expected to be weakest today, but still near monthly 
predicted levels. This is in to response to some minor magnetic 
disturbance associated with the passage of the polar coronal 
hole.

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