[Ips-dhfpr] SWS Daily HF Prop Report - 20 January 22 issued 2331 UT on 20 Jan 2022

Regional Warning Centre rwc at ips.gov.au
Fri Jan 21 10:31:06 EST 2022


SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/20 JANUARY 2022 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (20 JANUARY) 
Date   T index  Conditions    
20 Jan    51    Normal         

Flares    Max     Fadeout    Freq.  Sectors
  M5.5    0601UT  possible   lower  Mid East/Indian

MUFs:
   Cocos Island Region:
      Near predicted monthly values.
   Niue Island Region:
      Near predicted monthly values.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 30% during local night.
   Southern Australian Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

PCA Event : 10MeV Proton/PCA Event Began at 0755UT 20/01, Ended at 1515UT 20/01
 and, 100MeV Proton/PCA Event Began at 0820UT 20/01, Ended at 1045UT 20/01

Monthly T index:
Month  T index
Dec      34
Jan      36
Feb      39


2. FORECAST (21 JANUARY - 23 JANUARY)
Date   T index  Conditions       MUFs                              
21 Jan    40    Normal           Near predicted monthly values
22 Jan    40    Normal           Near predicted monthly values    
23 Jan    40    Normal           Near predicted monthly values   

COMMENT: SWS SWF HF Communications Warning 7 was issued on 20 
January and is current for 21 Jan only. Australian regional maximum 
usable frequencies (MUFs) were near predicted monthly values 
on 20 January. Occasional sporadic E observed at some stations. 
MUFs are expected to be mostly near predicted monthly values 
on 21-23 January. There is a slight chance for a shortwave fadeout 
on daylight HF circuits, today 21 January.

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

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