Canwarn
CANWARN, acronym màkà CANadian Weather Amateur Radio Network, bụ mmemme a haziri ahazi na-ahụ màkà ihu igwe siri ike na akụkọ nke Ngalaba Ọrụ Meteorological nkè Environment Canada haziri ma na-agba ọsọ. Ihe ndị otu CANWARN na-eme bụ nkè a na-akpọ eziokwu n'ala, ha na-akwado ma na-agbakwunye ozi na nyocha nkè satellite na radar yana ịnye ozi a na-apụghị ịhụ ányá site na teknụzụ ndị a.

Ọ bụ ndị otu Windsor Amateur Radio Club na Windsor, Ontario chepụtara usoro ihe omume ahụ n'afọ 1986.  Randy Mawson VE3TRW, Paul Robertson VE3HFQ, Jerry Beneteau VE3EXT na Bill Leal VE3ES guzobere usoro na usoro mbụ n'oge ahụ na ógé ọzụzụ mbụ e mèrè na Windsor n'oge oyi nke afọ 1986/1987 na Windsor Airport, ébé obibi n'oge Windsor Weather Office of Environment Canada.  Paul VE3HFQ na Bill VE3ES na-etinye ákà ikpeazụ na ọdụ (VE3YQG) dị na Windsor Weather Office na mbido ọnwa Eprel 1987 mgbè a kpọrọ netwọk CANWARN mbụ ka ọ bụrụ iwu.  Akụkọ banyéré ajọ ifufe na ndịda ọwụwa anyanwụ Michigan n'ụzọ na-aga Essex County ka e zigara na tebụl ihu igwe siri ike nke Environment Canada na Toronto, Ontario.

Ka e mesịrị n'afọ ahụ, mgbè ajọ ifufe nke Edmonton na arịrịọ nke Hage Report, a gbasaa CANWARN karịa mmemme mbụ nke Windsor (Ontario) Weather Office.  A haziri ebe oké ifufe na Canada dịbu ma na-arụ ọrụ n'onwe ya na Environment Canada ma ọ nweghị ihe ịga nke ọma nke mmemme CANWARN mere. Na mmalite, CANWARN dabeere na ndịda Ontario na etiti Alberta mana o mechara too iji kpuchie mba ahụ dum site na mmalite afọ 1990.

United States bịdọrọ mmemme nyocha nke oké ifufe n'ime afọ ndị 1950s. Tupu nke ahụ, ọ nwekwara naanị mmemme spotting mpaghara. N'afọ ndị 1970, ọ mụbara mbọ ịchọpụta ma malite mmemme Skywarn ya, nke kpaliri CANWARN. N'afọ 2000, Europe malitekwara ịhazi mbọ ndị a na-eme n'okpuru nkwado nke Skywarn Europe, nke nwéré alaka ndị na-achị onwé ha n'ihe dị ka mba iri na abụọ.

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 Ọrụ Mberede Redio Amateur

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 Ebe obibi Canwarn
 Ndị Radio Amateurs nke Canada CANWARN Page