and Impacts –
A deep closed low developed near the tail end of a frontal trough in
the Bahamas, and convection increased on the September 7, 1984. Winds increased to tropical storm
strength on September 8, and the cyclone was designated Diana. After initially drifting westward
and threatening the central Florida coast, the system moved north-northeast
ahead of a frontal system moving out of Canada, essentially ovar the Gulf Stream. The cold front bypassed the
hurricane to the north, allowing it to move in a slow anticyclonic
loop just off of the Cape Fear region of North Carolina. On the morning of the September 13,
Diana finally made landfall as a category two hurricane south of
Wilmington, NC (Figure 3), and weakened into a tropical storm 12 hours
later. The blocking high moved
out to sea, allowing the storm to move offshore to the east, near Oregon Inlet
on September 14. In a favorable environment, the system nearly regained
hurricane strength. After
passing just north of Sable Island, Nova Scotia, the cyclone became extratropical as it passed through Newfoundland on
September 16, 1984.
The highest observed winds associated with Diana occurred at the Oak
Island Coast Guard station south of Wilmington with sustained winds of 115
mph. Winds were much less over the Newport/Morehead City County Warning
Area as the storm center passed through Warsaw, Kinston, Belhaven and
offshore near Oregon Inlet, however some trees were knocked down in Duplin
and Lenoir Counties. There were no confirmed tornadoes from Diana.
The main impacts in Eastern North Carolina were from flooding, as up
to 14 inches of rain were reported in Duplin County (Figure 3). A dam
failure was reported at Faison in Duplin County. Tides of 4 to 5 feet above
normal were observed at Fort Macon with minor to moderate beach erosion
along the beaches of Carteret and Onslow Counties.
Figure 3. Hurricane Diana at
peak intensity east of the Cape Fear Region, September 13, 1984.
Figure 4. Rainfall amounts from
Hurricane Diana, September 9 through 15, 1984.
National Hurricane Center