[Ips-hf-warning] SWS HF COMMS WARNING issued 2332 UT on 27 May 2017 [SEC=UNCLASSIFIED]

[rwc]

SUBJ: SWS HF RADIO COMMUNICATIONS WARNING 17/30
ISSUED AT 2332UT/27 MAY 2017
BY THE AUSTRALIAN SPACE FORECAST CENTRE.

Due to arrival of 23 May CME

DEGRADED HF PROPAGATION CONDITIONS EXPECTED
FROM 28-29 MAY 2017
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
_____________________________________________________________
28 May:  -25          -30%      2  4  6  6  8 12 16 16
29 May:    0          -10%      2  4  6  8 12 16 16 22

Space Weather Services              email: asfc at bom.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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