[Ips-dhfpr] ASWFC Daily HF Prop Report - 23 November 24 issued 2331 UT on 23 Nov 2024 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/23 NOVEMBER 2024
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (23 NOVEMBER) 
Date   T index  Conditions    
23 Nov    99    Normal         

Flares    Max     Fadeout    Freq.  Sectors
  M1.0 22/2215UT  possible   lower  East Pacific/
                                    North American
  M1.1    1607UT  possible   lower  South American/
                                    Atlantic
  M1.1    1811UT  possible   lower  East Pacific/
                                    North American

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

PCA Event : 10MeV Proton/PCA Event Began at 1915UT 21/11, Ended at 1820UT 22/11
 and, 100MeV Proton/PCA Event Began at 1835UT 21/11, Ended at 0245UT 22/11

Monthly T index:
Month  T index
Oct      139
Nov      119
Dec      117


2. FORECAST (24 NOVEMBER - 26 NOVEMBER)
Date   T index  Conditions       MUFs                              
24 Nov   100    Normal-fair      Near predicted monthly values 
                                 to 10-15% depressed
25 Nov   110    Normal-fair      Near predicted monthly values 
                                 to 10-15% depressed    
26 Nov   115    Normal           Near predicted monthly values   

COMMENT: ASWFC SWF HF Communications Warning 137 was issued on 
23 November and is current for 23-25 Nov. Maximum usable frequencies 
(MUFs) in the Australian region on UT day 23-Nov were near predicted 
values to depressed by 20%. Sporadic E was observed in Hobart 
and Perth during local midnight and dawn hours. MUFs are expected 
to be near predicted values over 24-26 Nov, although 10-15% depressions 
are possible.

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