[Ips-dhfpr] SWS Daily HF Prop Report - 31 October 21 issued 2331 UT on 31 Oct 2021

[Regional Warning Centre]

SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/31 OCTOBER 2021 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (31 OCTOBER) 
Date   T index  Conditions    
31 Oct    27    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      Enhanced by 20% during local day.
      Enhanced by 65% during local night.
   Niue Island Region:
      Depressed by 15% during local day.
      Near predicted monthly values during local night.
   Northern Australian Region:
      Mostly near predicted monthly values.
   Southern Australian Region:
      Depressed by 15% during local day.
      Near predicted monthly values during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

PCA Event : 10MeV Proton/PCA Event Began at 1730UT 28/10, Ended at 1335UT 30/10
 and, 10MeV Proton/PCA Event Began at 1435UT 30/10, Ended at 1505UT 30/10
 and, 10MeV Proton/PCA Event Began at 2050UT 30/10, Ended at 2120UT 30/10
 and, 100MeV Proton/PCA Event Began at 1625UT 28/10, Ended at 0405UT 30/10

Monthly T index:
Month  T index
Sep      24
Oct      29
Nov      33


2. FORECAST (01 NOVEMBER - 03 NOVEMBER)
Date   T index  Conditions       MUFs                              
01 Nov    25    Normal-fair      Near predicted monthly values
02 Nov    30    Normal           Near predicted monthly values    
03 Nov    30    Normal           Near predicted monthly values   

COMMENT: MUFs in the Australian region on UT day 31 October were 
mostly near predicted monthly values. There were some mild depressions 
in the Southern Australian and Niue Island regions during the 
local day. Some moderate enhancements were observed in the Cocos 
Island region. MUFs are expected to be mostly near predicted 
monthly values on UT days 1-3 November.

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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
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