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Show SIGNAL SERVICE FLAGS. A Key to the Displays ftetllg Hung- Vp bj ITnclr- Sam's W eather Prophet. Tho weather signal flags displayed over ; the board of trade building mean as follows: Number 1 White flag, six feet squcre, in- j dicates clear weather. Number 2 Blue dug, HI feet square, indi-; indi-; cates rain or snow. Number 1 white and blue flag (parallel bars of w hite and blue), six feet square, indicates indi-cates that local rains or showers will occur, and that the rainfall will not be general. Number 4 Black triangular llag, four feet at the base and six feet iu length, always refers re-fers to temperature; when placed above number 1, 2 or 1, indicates warmer weather; when placed below num bcrs 1, 2, or 3, indicates Colder weather j When not displayed, the in-dicationu in-dicationu are that the temperature will re-main re-main stationary, or that tho change in tern pcraturo will not vary moru than four dc-I dc-I greus from the temperature of thu same hour ; oi the preceding day from March to October inclusive, and not more than six degrees for the remaining months of the year. Number 5, while llag, six felt square, with black square in center, indicates the approach of a sudden and decided Jail In temperature. This signal is not to be displayed unless it is expected that tho temperature will fall to orty-two degrees, or lower, aud is usually irdered at least twenty four hours in advance ad-vance of the cold wave. When number 5 is displayed, number 4 is always omitted. When displayed on pohs, the signals should be arranged to read downward; WhSO ; displayed from horizontal supports a small streamer should be attached to indicate the point from which the signals are to be read. IMTERrutiTAllION OF P1SI I.AV8. I No. 1, alone, Indh autes fair weather, stationary sta-tionary temperature. No. , alone, indicates rain or snow, sta-tioary sta-tioary temperature. No. 3, alone, indicates local rain, station, ary temperature. No. 1, with No. 4 above It, Indicates fair Weather, warmer. No. 1, with No. 4 below it, indicates fair weather (older. No. 2, with No. 1 above it,indicat"i warmer Weather, rain or suw. No. 2, with No. 4 below it, indicates colder weather, rain i t snow. No. 1, with No. -1 above It, indicates warmer weather with local rains. No. 3, with No. 4 below it, indicates colder with local ruins. No. 1, with No. 5 above it. indicates fair Weather, cold wavo. No. 2, with No. 5 above it, indicates wet Weather, coli wave. |