NOCN04 CWAO 291930
GENOT NO. 019

NOTE TO ALL USERS OF CANADIAN METAR DATA

EFFECTIVE 1200Z AUGUST 11, 1998 CANADIAN METAR OBSERVATIONS WILL 
REPORT GUSTS WHEN:  THE HIGHEST PEAK IS AT LEAST 5 KT HIGHER THAN 
THE CURRENT TWO MINUTE AVERAGE AND THE HIGHEST PEAK IS AT LEAST 
15 KT DURING THE 10 MINUTE PERIOD IMMEDIATELY PRECEDING THE OBSERVATION.

THIS IS A SOFTWARE CHANGE ONLY.  CANADIAN WEATHER OBSERVERS WILL 
CONTINUE TO REPORT GUSTS AS PER THE MANUAL OF SURFACE WEATHER 
OBSERVATIONS.


NOTE POUR TOUS LES USAGERS DES DONNEES METAR CANADIENNES.

A PARTIR DU 11 AOUT 1998 A 1200Z, LES OBSERVATIONS CANADIENNES METAR 
INCLUERONT LES RAFALES LORSQUE: LA RAFALE LA PLUS FORTE EST DE 5 KT 
PLUS ELEVEE QUE LA MOYENNE COURANTE SUR DEUX MINUTES ET QUE LA POINTE 
LA PLUS ELEVEE EST D'AU MOINS 15 KT DURANT LES 10 MINUTES QUI PRECEDENT 
IMMEDIATEMENT L'OBSERVATION.

IL NE S'AGIT LA QUE D'UNE MODIFICATION DE LOGICIEL. LES OBSERVATEURS 
CANADIENS CONTINUERONT LEURS OBSERVATIONS CONFORMEMENT AU MANUEL 
D'OBSERVATIONS METEO DE SURFACE.

MCBEAN/ADMA/TORONTO