NOCN01 CWAO 101830 GENOT NOCN01 NO. 075 ACTION - OPERATIONAL CHANGE / CHANGEMENT OPERATIONNEL STATION CHANGED FROM WS3 TO CONTRACT STATION / CHANGEMENT DE LA STATION DE WS3 A STATION A CONTRAT STATION - ESTEVAN A , SK IDENTIFIER / INDICATIF - YEN INDEX NUMBER / INDICATIF INTERNATIONAL - 71862 TYPE - CON LATITUDE - 49 13 N LONGTITUDE - 102 58 W ELEVATION - 581 M CIRCUIT HEADER / EN-TETE TLTP - SACN43 CWAO , SMCN06 CWAO PROGRAM / PROGRAMME - SA HOURLY OBSERVATIONS HORAIRES SA SM SYNOPTIC OBSERVATIONS SYNOPTIQUE SM , 0000, 0600, 1200, AND / ET 1800 UTC OPERATION - DAILY / TOUS LES JOURS 0000 - 2300 UTC PARAMETERS / PARAMETRES - NO CHANGE / PAS DE CHANGEMENT EFFECTIVE / EN VIGUEUR - JULY 07 JUILLET 1997 2100 UTC MCBEAN / ADMA / TORONTO