[Ips-dhfpr] SWS Daily HF Prop Report - 13 March 22 issued 2331 UT on 13 Mar 2022

[Regional Warning Centre]

SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/13 MARCH 2022 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (13 MARCH) 
Date   T index  Conditions    
13 Mar    67    Fair-normal    

Flares: none.

MUFs:
   Cocos Island Region:
      Enhanced by 20% during local day.
      Enhanced by 90% during local night.
      Enhanced by 20% after local dawn.
   Niue Island Region:
      Mostly near predicted monthly values.
   Northern Australian Region:
      Enhanced by 15% during local day.
      Near predicted monthly values during local night.
   Southern Australian Region:
      Enhanced by 20% during local day.
      Enhanced by 15% during local night.
      Depressed by 20% after local dawn.
   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
Feb      59
Mar      42
Apr      44


2. FORECAST (14 MARCH - 16 MARCH)
Date   T index  Conditions       MUFs                              
14 Mar     5    Fair             15 to 40% below predicted monthly 
                                 values
15 Mar    30    Normal-fair      Depressed 30%/Near predicted 
                                 monthly values    
16 Mar    60    Normal           Near to 15% above predicted 
                                 monthly values   

COMMENT: SWS Preliminary HF Communications Warning 23 was issued 
on 11 March and is current for 14-15 Mar. SWS SWF HF Communications 
Warning 24 was issued on 11 March and is current for 12-14 Mar. 
Maximum usable frequencies (MUFs) on 13 March were near predicted 
monthly values to about 20% enhanced with depressions to 25% 
after dawn at some mid-latitude sites. The expected geomagnetic 
activity has commenced. Degraded MUFs are expected on 14 and 
15 Mar with conditions improving in second half of 15 Mar.

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