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Show 8W Ml. SERVICE FLAGS. A Key to the Display Itelng Hung t b Uncle Ham's iVenther Prophet. The weather signal flags displayed over the board of trade bulldiug mean as follows: Number 1 While flag, six feet square, indicates in-dicates clear weather. Number i Blue flag, six feet square, indicates indi-cates rain or snow. Number 3 white and blue flag (parallel bars of white and blue), six feet square, indicates indi-cates that local raius or showers will ocean, and that the rainfall will not be general. Number 4 Black triangular flag, four feet at the base aud six feet in length, always refers re-fers to temperature; when placed above number 1, 3 or 3, indicates warmer weather; when placed below numbers num-bers 1, a, or 3, indicates colder weather; when not displayed, the indications in-dications are Ibat 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, aud not more than six degrees for the remaining months of the year. Number 5, while flag, six feet square, with black square lu center, indicates the approach of a sudden and 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 lowor, and 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 poles, the signals should bo arranged to read downward; when displayed from horizontal supports a small streamer should be attached to indicate the pifhrt if! t,o .', Um mJ4 r" tv It,' teotl, lNTEUl'KHTAHlON OS jd si' I. A VS. No. 1, alone, mai- antes fair weather, stationary sta-tionary temperature. , No. 2, alone, indicates rain or snow, sta-tioary sta-tioary temperature. No. 3, alone, indicates local rain, stationary station-ary temperature. No. 1, with No. 4 above It, Indicates fair weather, warmer. No. 1, with No. 4 below it, indicates fair weather colder. No. II, with No. 4 above it, Indicates warmer weather, rain or snow. No. 2, with No. 4 below it, indicates colde weather, rain or enow. No, 3, with No. 4 above it,iudicatea warmer weather with local raius. No. 3, with No. 4 below it, Indicates colder witli local rulua. No. 1, with No. 5 above It. indicates fair weather, cold wave. No. ", with No. b above It, indicates wet weather, coli wave. |
