[Ips-dhfpr] SWS Daily HF Prop Report - 17 May 22 issued 2331 UT on 17 May 2022 [SEC=OFFICIAL]

[Regional Warning Centre]

SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/17 MAY 2022 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (17 MAY) 
Date   T index  Conditions    
17 May    92    Normal         

Flares    Max     Fadeout    Freq.  Sectors
  C9.0    1145UT  probable   lower  European

MUFs:
   Cocos Island Region:
      Enhanced by 45% during local day.
      Near predicted monthly values during local night.
      Enhanced by 25% after local dawn.
   Niue Island Region:
      Enhanced by 25% during local day.
      Near predicted monthly values during local night.
      Enhanced by 70% after local dawn.
   Northern Australian Region:
      Enhanced by 20% during local day.
      Enhanced by 35% during local night.
      Enhanced by 30% after local dawn.
   Southern Australian Region:
      Enhanced by 20% during local day.
      Enhanced by 30% during local night.
      Enhanced by 30% after local dawn.
   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      77
May      51
Jun      54


2. FORECAST (18 MAY - 20 MAY)
Date   T index  Conditions       MUFs                              
18 May    90    Normal           Near to 15% above predicted 
                                 monthly values
19 May    90    Normal           Near to 15% above predicted 
                                 monthly values    
20 May    90    Normal           Near to 15% above predicted 
                                 monthly values   

COMMENT: SWS SWF HF Communications Warning 44 was issued on 17 
May and is current for 17-19 May. Maximum usable frequencies 
(MUFs) on UT day 17-May were near monthly predicted values to 
slightly enhanced. Spread-F was observed at Hobart during 1100-1400UT. 
MUFs are expected to be mostly near monthly predicted values 
to slightly enhanced during 18-20 May. Short-wave fadeouts are 
possible during this period.

----------------------------------------------------------
For an explanation of some of the terms in this report, go to
https://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 

IMPORTANT: This e-mail, including any attachments, may contain,
confidential or copyright information.  The views expressed in 
this message are those of the individual sender, unless 
specifically stated to be the views of SWS.  If you are not 
the intended recipient, please contact the sender immediately 
and delete all copies of this e-mail and attachments. 
To unsubscribe from an IPS mail list either send an email to 
"MAIL_LIST"-leave at ips.gov.au or go to
http://www.sws.bom.gov.au/mailman/listinfo/"MAIL_LIST".
Information about training can be obtained from
http://www.sws.bom.gov.au/mailman/listinfo/ips-training.
General information is available from
http://www.sws.bom.gov.au/mailman/listinfo/ips-info.