[Ips-dhfpr] IPS Daily HF Prop Report - 22 May 16 issued 2330 UT on 22 May 2016 [SEC=UNCLASSIFIED]

Regional Warning Centre rwc at ips.gov.au
Mon May 23 09:30:39 EST 2016


SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/22 MAY 2016 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    33    Mildly depressed/normal         

Flares: B class flares

MUFs:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Depressed by 20% during local night.
   Niue Island Region:
      Depressed by 25% during local day.
      Depressed by 20% during local night.
   Northern Australian Region:
      Depressed by 15% during local day.
      Depressed by 35% during local night.
   Southern Australian Region:
      Mostly near predicted monthly values.
   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
Apr      30
May      47
Jun      46


2. FORECAST (23 MAY - 25 MAY)
Date   T index  Conditions       MUFs                              
23 May    40    Mildly depressed   5 to 25% below predicted monthly 
                to normal          values
24 May    40    Mildly depressed   5 to 25% below predicted monthly 
                to normal          values
25 May    40    Mildly depressed   5 to 25% below predicted monthly 
                to normal          values
  

COMMENT: Conditions for HF radio wave propagation were mildly 
depressed throughout the Australian region during 22 May UT. 
Cocos Island was an exception: the preliminary daily T index 
was 76 due to a 70% enhancement in plasma density at 10 UT. 
Conditions are expected to remain mildly depressed throughout 
most of the Australian region during the next 2 days.

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