[Ips-dhfpr] ASWFC Daily HF Prop Report - 16 November 22 issued 2331 UT on 16 Nov 2022 [SEC=OFFICIAL]

Regional Warning Centre rwc at ips.gov.au
Thu Nov 17 10:31:16 EST 2022


SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/16 NOVEMBER 2022
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (16 NOVEMBER) 
Date   T index  Conditions    
16 Nov    95    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Enhanced by 25% during local night.
   Niue Island Region:
      Near predicted monthly values.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 15% during local night.
   Southern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 15% during local night.
   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
Oct      83
Nov      70
Dec      70


2. FORECAST (17 NOVEMBER - 19 NOVEMBER)
Date   T index  Conditions       MUFs                              
17 Nov    85    Normal           Near predicted monthly values
18 Nov    80    Normal           Near predicted monthly values    
19 Nov    70    Normal-fair      Near predicted monthly values   

COMMENT: ASWFC SWF HF Communications Warning 87 was issued on 
15 November and is current for 15-17 Nov. Maximum usable frequencies 
(MUFs) on UT day 16-Nov were generally near predicted monthly 
values, with enhancements of 15% in the Australian region and 
enhancements of 25% at Cocos Islands during local day. Sporadic-E 
was observed at most sites during local night hours. MUFs are 
expected to be near predicted monthly values to mildly enhanced 
over 17-18 Nov. There is a possibility of 15% depressions by 
the end of 19-Nov in the southern Australian regions due to anticipated 
geomagnetic activity from coronal hole high speed wind streams. 
Isolated shortwave fadeouts are possible on 17-Nov.

----------------------------------------------------------
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.

Australian Space Weather Forecasting Centre
Bureau of Meteorology
ASWFC at bom.gov.au
www.bom.gov.au | www.sws.bom.gov.au



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