Welcome to DU! The truly grassroots left-of-center political community where regular people, not algorithms, drive the discussions and set the standards. Join the community: Create a free account Support DU (and get rid of ads!): Become a Star Member Latest Breaking News General Discussion The DU Lounge All Forums Issue Forums Culture Forums Alliance Forums Region Forums Support Forums Help & Search

nitpicker

(7,153 posts)
Sat Aug 31, 2019, 05:40 AM Aug 2019

Everyone from NC to FL: Keep an eye on Dorian

From the 5 am Aug 31 discussion:

https://www.nhc.noaa.gov/text/refresh/MIATCDAT5+shtml/310848.shtml?

(snip)

A low- to mid-level subtropical ridge to the north of the hurricane should steer it west-
northwestward to westward for the next 48 h or so, with the forward
speed becoming very slow as the center passes near or over the
Abacos and Grand Bahama. The track guidance for this part of the
track is tightly clustered, and the new forecast track is near the
ECMWF, UKMET, and HCCA corrected consensus models. The track
forecast becomes much more problematic after 48 h. The global
models the NHC normally uses, along with the regional HWRF and HMON
models, have made another shift to the east to the point where none
of them forecast Dorian to make landfall in Florida. However, the
UKMET ensemble mean still brings the hurricane over the Florida
peninsula, as do several GFS and ECMWF ensemble members
. The new
track forecast for 72-120 h will be moved eastward to stay east of
the coast of Florida, and it lies between the old forecast and the
various consensus models. Additional adjustments to the forecast
track may be necessary later today if current model trends continue.
It should be noted that the new forecast track does not preclude
Dorian making landfall on the Florida coast, as large portions of
the coast remain in the track cone of uncertainty. Also,
significant impacts could occur even if the center stays offshore.
(snip)

3. The risk of strong winds and life-threatening storm surge is
increasing along the coasts of Georgia and South Carolina during
the middle of next week. Residents in those areas should continue
to monitor the progress of Dorian.

4. Heavy rains, capable of life-threatening flash floods, are
expected over portions of the Bahamas and coastal sections of the
southeastern United States this weekend through much of next week.


FORECAST POSITIONS AND MAX WINDS

INIT 31/0900Z 25.8N 72.6W 120 KT 140 MPH
12H 31/1800Z 26.1N 74.0W 125 KT 145 MPH
24H 01/0600Z 26.5N 75.8W 125 KT 145 MPH
36H 01/1800Z 26.7N 77.2W 125 KT 145 MPH
48H 02/0600Z 26.9N 78.1W 120 KT 140 MPH
72H 03/0600Z 27.5N 79.4W 115 KT 130 MPH
96H 04/0600Z 29.5N 80.5W 110 KT 125 MPH
120H 05/0600Z 32.0N 80.5W 95 KT 110 MPH

((The 120 hour position is very close to Parris Island/Hilton Head- but this probably change yet again.))

Latest Discussions»General Discussion»Everyone from NC to FL: K...