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The 1935 Labor Day hurricane, with a pressure of 892 mbar (hPa; 26.34 inHg), is the third strongest Atlantic hurricane and the strongest documented tropical cyclone prior to 1950. [11] Since the measurements taken during Wilma and Gilbert were documented using dropsonde, this pressure remains the lowest measured over land. [63]
The most intense storm by lowest pressure and peak 10-minute sustained winds was Typhoon Tip, which was also the most intense tropical cyclone ever recorded in terms of minimum central pressure. Storms with a minimum pressure of 899 hPa (26.55 inHg) or less are listed. Storm information was less reliably documented and recorded before 1950. [6]
This is the lowest central pressure on record for any Atlantic hurricane, [2] breaking the previous record of 888 mbar (26.2 inHg) set by Hurricane Gilbert in 1988. [4] Wilma's intensification rate broke all records in the basin, with a 24–hour pressure drop of 97 mbar (2.9 inHg); this also broke the record set by Gilbert.
Camille produced the sixth lowest official sea level pressure ever recorded in the Atlantic basin, at 900 millibars (27 inHg). [8] This was also its landfalling pressure; the only hurricane to hit the United States with a lower pressure at landfall was the Labor Day Hurricane of 1935.
The lowest pressure in a hurricane is always found at its center, or in its eye. In general, a lower pressure means a more intense hurricane in terms of its winds and overall destructive potential.
The cyclone's lowest barometric pressure occurs in the eye and can be as much as 15 percent lower than the pressure outside the storm. [1] In strong tropical cyclones, the eye is characterized by light winds and clear skies, surrounded on all sides by a towering, symmetric eyewall.
Late on October 17, a hurricane hunters flight into Wilma recorded winds of 50 mph (80 km/h), but an unusually low pressure of 989 millibars (29.2 inHg), which would be more typical of a minimal hurricane. This was due to unusually low pressures across the region, which resulted in a lesser pressure gradient and thus lighter winds. Convection ...
Its minimum pressure of 899 millibars was the second-lowest pressure on record for the basin at the time. The major hurricane was also very large at this time, with hurricane-force winds extending 144 mi (232 km) from its center and tropical-storm-force winds extending 345 miles. [3]