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Show SIGNAL SERVICE FLAGS. A Eey to the Displays Reinp Hung Up bj Uncle Sam's Weather Prophet. The weather signal flags displayed over the board of trade building mean as follows: Number 1 White flag, 3ix feet square, in- dicates clear weather. Number 2 Blue flag, six feet square, indi- , cates rain or snow. Number3 white and blue flag (parallel : bars of white and blue), six feet square, indi- i catea that local rains or showers will occr, j and .'hat the rainfall will not be general. Number 4 Black triangular flag, four feet I at the base and six feet in length, always refers re-fers to temperature; when placed above number 1, 2 or 3, indicates warmer weather; when placed below numbers num-bers 1, 2, or 3, indicataa colder weather; when not displayed, the indications in-dications are that the temperature will remain re-main stationary, or that the change in tern perature will not vary more than four degrees de-grees from the temperature of the same hour of the preceding day from March to October inclusive, and not more than six degrees for the remaining months of the year. i Number 5, whit flag, six feat square, with black square in center, indicates the approach of a sudden aud decided fall in temperature. This signal is not to be displayed unless it is expected that the temperature will fall to forty-two degrees, or lower, and is usually rdered at least twenty-four hours in advance ad-vance of the cold wave. When number 5 ia displayed, number 4 is always omitted. When displayed on poles, the signals i should be arranged to reed downward; when displayed from horizontal supports a small streamer should be attached to indicate the ' point from which the signals are to be read. INTERPRET AR ION OF DISPLAYS. No. 1, alone, indicants fair weather, sta-! sta-! tionary temperature. No. 2, alone, indicates rain or snow, sta-i sta-i tioary temperature. No. 3, alone, indicates local rain, station-; station-; ary temperature. i No. 1, with No. 4 above it, indicates fair weather, warmer. No. 1, with No. 4 below it, indicates fair weather colder. No. 2, with No. 4 above it,indicate warmer weather, rain or snow. No. 2, with No. 4 below it, indicates colde weather, rain or snow. No. 3, with No. 4 above indicates warmer ! weatker with local rains. No. 3. with No. 4 below it, indicates colder : With local rain. No. 1, with No. 5 above it. indicates fair I weather, cold wave. No. 2, with No. 5 above it, indicate wet ; wea tiier, coll wave. I |