That attractive barometer you got last Christmas may have seemed like an interesâ€" ting gift, and the woodgrain case certainly matches the paneling in the den; but how many times have you looked at it since you hung it up? The barometer is one of the weather fosecaster‘s simâ€" plest and most valuable inâ€" struments, but it is pracâ€" tically useless unless you know how to use it. Fortunately, a barometer seldom wears out, so blow off the dust and take a few tips from University of Guelph weatherman, Proâ€" fessor Terry Gillespie, on how to use your barometer to tell whether or not to go ahead with the picnic this afternoon or decide if toâ€" morrow will be a good day to spray the lawn. In accordance with Canaâ€" da‘s metrication program, atmospheric pressure is now reported in kilopascals (kPa), although your baro meter may be calibrated in inches of mercury, or milliâ€" bars if it was made in Europe. The calibration â€"used is really insignificant, says Prof. Gillespie, since it is the trend in pressure rather than the actual presâ€" sure reading that is imporâ€" tant as a weather indicator. on & * sgtic+ He suggests you‘ll only fully insured, clean, efficient, courteous vice, dressed in traditional attire. Call THE PROFESSIONAL Sweeps Notice is hereby given that | have complied with Section 24 of The Municipal Elections Act, 1977 and that | have posted up at my office at the City Hall, Waterloo, Ontario on the twentyâ€" first day of October, 1978, the preliminary list of all electors and that such list remains there for And | hereby call upon all voters mediate proceedings to have all 0 errors corrected according to law, the filing complaints being the 27th day 1978 all electors inspection. Revisions to th Clerk‘s Office, W Marsland Centre, a m. to 4:45 p.m CLERK‘S NOTICE § OF POSTING OF PRELIMINARY LIST OF ELECTORS 1978 CITY OF WATERLOO IN THE REGIONAL MUNICIPALITY OF WATERLOO Dated this eighteenth day of October 742â€"8277 the list W ROYAL TOUCH CHIMNEY SWEEPS INC. LZ a clyr Iâ€"â€"Iâ€"aC tg RQ In addition to the indicaâ€" tor needle, your barometer will sport a marker needle which you may want to set at bedtime or breakfast. As a general rule, rising pressure over a period of time indicates the approach of fair skies while falling pressure often signals a turn to less settled weather. need to check the baro meter‘s calibration once a year. You can convert the kilopascal reading from the local weather station by using one of the following formulas: kPa x 0.2953 â€" inches of mercury or kPa x 10 â€" millibars. Atmospheric pressures in Canada usually fall in the range from 98.0 to 103.0 kilopascals. With a little bit of pracâ€" tice, says Prof. Gillespie, you‘ll be able to predict the arrival of an approaching storm by watching how fast the barometric pressure is falling. A very slow decline would suggest a weather change within the next 24 hours, while a rapid decline in pressure may indicate a disturbance is only six to eight hours away. The speed at which the pressure rises will also give you some inâ€" dication of how quickly clear skies will return after a rain storm. An important ‘part of shortâ€"range weather foreâ€" RC. KEELING RETURNING OFFICER l voters to take imâ€" ave all omissions or o law., the last day for 27th day of October, 1978 casting is simply the obserâ€" vation of changes in atâ€" mospheric conditions, notes Prof. Gillespie. Anyone can improve his powers of obâ€" servation and therefore his ability to make local predicâ€" tions if he learns what to look for in pressure chanâ€" ges, wind direction and cloud formations. These are the subjects he‘ll be coâ€" vering in a nonâ€"credit evenâ€" ing course to be offered this fall. The course will be held on the Guelph campus as part of the University‘s Conâ€" tinuing Education fall proâ€" gram. Our goal is to help class participants make better use of weather forecasts and predictions, says Prof. Gilâ€" lespie. He plans to offer genâ€" eral information on warm and cold fronts, what they mean and what causes them, as well as details on what kind of thermometer to buy and where to place it. 4 G G L d ‘ O U e & a La e and cloud photography are other tepics to be discussed. ‘‘We‘ll also talk about barometers,‘" says Prof. Gillespie. 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