[Ips-dhfpr] IPS Daily HF Prop Report - 19 September 01

[rwc]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 19/2330Z SEPTEMBER 2001 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (19 SEPTEMBER) 
Date   T index  Conditions    
19 Sep   157    Normal         

Flares: none.

MUFs:
   Equatorial PNG Region:
      Near predicted monthly values during local day,
      Enhanced by 25% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day,
      Enhanced greater than 30% during local night.
   Southern Australian and New Zealand Region:
      Enhanced greater than 20%.
   Antarctic Region (Casey/Scott Base):
      Enhanced by 35% over the UT day.


Predicted Monthly T index for September: 108
2. FORECAST (20 SEPTEMBER - 22 SEPTEMBER)
Date   T index  Conditions       MUFs                              
20 Sep   145    Normal           15-20% above predicted monthly 
                                 values 
21 Sep   120    Normal-fair      near predicted monthly values     
22 Sep   135    Normal           Near predicted monthly values 
                                 to enhanced 15%.    
COMMENT: IPS HF Communications Warning 47 was issued on 18 September 
and is current for interval 19-21 September (SWFs) . Enhanced 
MUFs again expected today. Fadeouts can be expected on daylight 
HF circuits. Slightly degraded conditions may be experienced 
for 21-22 September following the anticipated impact of the CME 
observed on 18 September. 

IPS Radio and Space Services      | email: asfc at ips.gov.au
PO Box 1386                       | WWW: http://www.ips.gov.au/asfc
Haymarket NSW 1240  AUSTRALIA     | FTP: ftp://ftp.ips.gov.au/users/asfc/ 
tel: +61 2 9213 8010              | fax: +61 2 9213 8060