[Ips-dhfpr] ASWFC Daily HF Prop Report - 27 August 22 issued 2330 UT on 27 Aug 2022 [SEC=OFFICIAL]

Regional Warning Centre rwc at ips.gov.au
Sun Aug 28 09:30:53 EST 2022


SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/27 AUGUST 2022
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (27 AUGUST) 
Date   T index  Conditions    
27 Aug    58    Normal         

Flares    Max     Fadeout    Freq.  Sectors
  M4.8    0236UT  possible   lower  E. Asia/Aust.
  M1.2    1138UT  possible   lower  European
  M1.1    1525UT  possible   lower  South American/
                                    Atlantic
  M1.8    1559UT  possible   lower  South American/
                                    Atlantic
  M1.1    1649UT  possible   lower  South American/
                                    Atlantic

MUFs:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Depressed by 30% during local night.
   Niue Island Region:
      Depressed by 15% during local day.
      Near predicted monthly values during local night.
   Northern Australian Region:
      Near predicted monthly values.
   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 1150UT 27/08, Ended at 1830UT 27/08
 and, 10MeV Proton/PCA Event Began at 1915UT 27/08, Ended at 2125UT 27/08

Monthly T index:
Month  T index
Jul      65
Aug      67
Sep      68


2. FORECAST (28 AUGUST - 30 AUGUST)
Date   T index  Conditions       MUFs                              
28 Aug    55    Normal           Near predicted monthly values
29 Aug    55    Normal-fair      Near predicted monthly values    
30 Aug    55    Normal           Near predicted monthly values   

COMMENT: SWS SWF HF Communications Warning 64 was issued on 27 
August and is current for 27-28 Aug. Maximum usable frequencies 
(MUFs) on UT day 27-Aug were near predicted monthly values with 
some mild depressions during local night in the Northern Australian 
region. Regional MUFs are expected to be mostly near predicted 
monthly values over 28-30, with mild depressions possible on 
29-Aug due to the combined effects of coronal hole high speed 
wind streams and a possible glancing blow from a CME first observed 
on 27-Aug.

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



More information about the ips-dhfpr mailing list