[Ips-hf-warning] IPS HF COMMS WARNING issued 0009 UT on 22 Dec 2015 [SEC=UNCLASSIFIED]

[rwc]

SUBJ: SWS HF RADIO COMMUNICATIONS WARNING 15/82
ISSUED AT 0009UT/22 DECEMBER 2015
BY THE AUSTRALIAN SPACE FORECAST CENTRE.

Strong geomagnetic activity during the last 24 hours (UT day 
21 Dec) has caused this MUF degradation. Depressed MUF conditions 
are expected to last for few days (22-23 Dec) mainly over the 
high and mid-latitude regions and then gradually return to near 
monthly predicted values.

DEGRADED HF PROPAGATION CONDITIONS EXPECTED
FROM 22-23 DECEMBER 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
_____________________________________________________________
22 Dec:   30          -15%      2  4  6  8 12 12 16 22
23 Dec:   50          -10%      2  4  6  8 12 16 16 22

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

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