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The 1886 Indianola Hurricane was a powerful tropical cyclone that destroyed the town of Indianola, Texas in August 1886, remarkably impacting the history and economic development of Texas. [1] It was the fifth and strongest hurricane of the 1886 Atlantic hurricane season, and one of the most intense hurricanes to ever hit the United States.
The Signal Corps map of the cyclone for September 7 indicated a pressure of at least 1007.5 mbar (hPa; 29.75 inHg) for the storm's outermost closed isobar, with a storm of similar nature positioned a short distance west of Jalisco, Mexico in the eastern Pacific Ocean. [8]
Once a map has a field of station models plotted, the analyzing isobars (lines of equal pressure), isallobars (lines of equal pressure change), isotherms (lines of equal temperature), and isotachs (lines of equal wind speed) are drawn. [18] The abstract weather symbols were devised to take up the least room possible on weather maps. [citation ...
The London Times published the first weather map on April 1, 1875. [12] In the United States, the 1876 Centennial Exposition in Philadelphia, Pennsylvania demonstrated that daily weather map transmission via telegraph could be accomplished. The New York Daily Graphic published weather maps from mid-1879 through the summer of 1882. By 1894 ...
While the newly completed Galveston Seawall mitigated a similar-scale disaster for Galveston, numerous fatalities occurred along unprotected stretches of the Texas coast due to the storm's 16.2 ft (4.9 m) storm surge. Overall, the major hurricane inflicted at least $30 million in damage (equivalent to $904 million in 2023) and killed 403–405 ...
An isobar (from Ancient Greek βάρος (baros) 'weight') is a line of equal or constant pressure on a graph, plot, or map; an isopleth or contour line of pressure. More accurately, isobars are lines drawn on a map joining places of equal average atmospheric pressure reduced to sea level for a specified period of time.
The geography of Texas is diverse and large. Occupying about 7% of the total water and land area of the U.S., [1] it is the second largest state after Alaska, and is the southernmost part of the Great Plains, which end in the south against the folded Sierra Madre Oriental of Mexico.
On the top right corner of the model for a surface weather map is the pressure, showing the last two integer digits of the pressure in millibars, or hectopascals, along with the first decimal. For instance, if the pressure at a certain location is 999.7 hPa, the pressure portion of the station model will read 997.