the fastest winds in a hurricane are found in the eyewall.
the fastest winds in a hurricane are found in the eyewall.
where are the fastest winds in a hurricane found?
the eyewall
while at major hurricane status, ivan maintained very strong convection in its core with a well-defined eye. operationally, the probability for further rapid strengthening was considered nearly nine times the average of a typical hurricane. accordingly, ivan was forecast to pass near barbados with winds of about 150 mph (240 km/h). shortly after attaining category 4 status, the outer convection of the hurricane became ragged. hurricane hunters found a saharan air layer in the northern portion of the eye, leaving the eyewall eroded which caused a marked decrease in winds; by late on september 6 ivan weakened to winds of 105 mph (165 km/h). the inner eyewall dissipated as a 23-mile (37 km) outer eyewall became dominant, and concurrently the overall organization of the hurricane improved. ivan again attained major hurricane status as it approached the lesser antilles, and at 2130 utc on september 7 the cyclone passed 7 miles (11 km) south-southwest of the southern tip of grenada, its closest approach to the island. at the time, the hurricane maintained an eye diameter of 12 miles (19 km), with the northern portion of the eyewall producing strong winds on the island. the hurricane brought strong winds to grenada, and tropical storm force winds were reported as far north as dominica.
meteorological history of hurricane ivan
plans were made in 1918 for a bypass to the east of downtown wilmington for through traffic, avoiding market street. the bypass would utilize heald street, church and spruce streets, and would construct northeast boulevard heading northeast from the eleventh street bridge. the bypass was needed as philadelphia pike had steep grades that were difficult for trucks at the time. in 1934, the state highway department began work on this bypass. among them was the improvement of church and spruce streets by widening and paving them. in addition, the northeast boulevard was built, running from the eleventh street bridge over the brandywine creek northeast to edgemoor road in edgemoor. construction began this year on an extension of the road northeast to holly oak. the following year, the northeast boulevard was completed between edgemoor and holly oak. the construction of the northeast boulevard led to increased residential and industrial development along the route. in the later part of 1936, construction began on the portion of the wilmington bypass along heald street along with northeast boulevard (renamed governor printz boulevard) between holly oak and claymont. both of these projects were finished in fall 1937 and completed a bypass of the portion of us 13 through wilmington. this bypass route was designated as us 13 alt. in 1939. in 1939, construction was authorized to widen governor printz boulevard into a divided highway. the widening of the road to a divided highway was completed in 1940. in 1942, a bridge was completed on heald street that eliminated the grade crossing with a pennsylvania railroad line. us 13 alt. was widened to four lanes between 11th street and 30th street in wilmington in 1956. in 1970, us 13 was rerouted to bypass downtown wilmington on the us 13 alt. alignment while us 13 bus. was designated onto the former us 13 alignment from the southern border of wilmington to claymont.
special routes of u.s. route 13