Cannot create UDFs returning "Table" in Snowflake - compilation error

Question

USE AGDWHDEV.EDW_WEATHER; -- My database and schema

CREATE OR REPLACE function EDW_WEATHER.find_nearest_radar()
  returns table (LATITUDE number, LONGITUDE number)
  as 'SELECT 1 LATITUDE, 1 LONGITUDE';

-- The function compiled successfully but when I ran it:

select EDW_WEATHER.find_nearest_radar();

-- I get this:

002141 (42601): SQL compilation error:

Unknown user-defined function EDW_WEATHER.FIND_NEAREST_RADAR

If I change the return type to a FLOAT (non-Table) or any simple return type, it works. Determined, I search the web and followed this example, at:

https://www.bmc.com/blogs/snowflake-user-defined-functions/

in the section "Snowflake table function"

but I got the same error! What am I doing wrong?