11) indicated a distinct double
eyewall structure, suggestive of an imminent weakening trend.
The storm was at a standstill, with part of its
eyewall having hung over Grand Bahama Island since Sunday.
In an advisory posted an hour ago, the US National Hurricane Center urged the residents on Grand Bahama Island to remain in a shelter as they are currently experiencing the '
eyewall' of Dorian.
Storm Surge Watch extended North to South Santee River South Carolina." "Destructive
eyewall of Dorian continues to lash Grand Bahama Island," it warned.
Total rainfall at a particular location varies with the forward speed of the hurricane, with the size of the hurricane's wind field, and with how vigorous the updrafts are in the hurricane's
eyewall.
It tweeted: "The
eyewall of #Dorian is reaching the Abaco Islands.
Although Stretched_G produces a narrowed extent of the
eyewall convection, it substantially overpredicts the radar reflectivity in the 2[degrees] radial band.
This is the
eyewall, where you'll find the strongest winds and heaviest rain.
"Though the centre of cyclone lies over land, the rear sector of
eyewall is still over the sea.
This is because Hurricane Michael's
eyewall -- a region of clouds, high winds and heavy rainfall surrounding the center of the storm (known as the eye), was punctured.
While there are no depth measurements in Mexico Beach currently available, this community was in the right
eyewall of Michael where storm surge is typically the highest.