[Ips-hf-warning] IPS HF COMMS WARNING issued 0025 UT on 11 Sep 2015

rwc rwc at ips.gov.au
Fri Sep 11 10:25:05 EST 2015


SUBJ: IPS HF RADIO COMMUNICATIONS WARNING 15/51
ISSUED AT 0024UT/11 SEPTEMBER 2015
BY THE AUSTRALIAN SPACE FORECAST CENTRE.

Due to continued very low levels of ionising radiation and expected 
rise in geomagnetic activity levels from 11 to 13 September, 
mild to significant depressions in MUFs and degradations in HF 
conditions may be observed during this period.

DEGRADED HF PROPAGATION CONDITIONS EXPECTED
FROM 11-13 SEPTEMBER 2015
IF COMMS DIFFICULTIES EXPERIENCED TRY A LOWER FREQUENCY BAND
_____________________________________________________________

HF COMMUNICATIONS FORECAST (AUSTRALIAN/NEW ZEALAND REGION)
                                   FREQUENCY BANDS
       T-index      MUFs        2  4  6  8 12 16 22 26
_____________________________________________________________
11 Sep:    5          -30%      2  4  6  6  8 12 16 16
12 Sep:    0          -40%      2  4  4  4  8  8 12 12
13 Sep:   10          -30%      2  4  6  6  8 12 16 16

Space Weather Services              email: asfc at ips.gov.au
Bureau of Meteorology
PO Box 1386                         WWW: http://www.ips.gov.au
Haymarket NSW 1240  AUSTRALIA       FTP: ftp://ftp.ips.gov.au 
tel: +61 2 9213 8010                fax: +61 2 9213 8060 

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