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Tropical Depression Harvey Discussion Number  43
NWS National Hurricane Center Miami FL       AL092017
1000 PM CDT Wed Aug 30 2017

Harvey has continued to weaken since this afternoon as the center
has moved farther inland over Louisiana.  Surface observations
indicate that winds along the northern Gulf coast have decreased,
and the system became a tropical depression in the 0000 UTC
intermediate advisory.  Harvey should continue to gradually weaken
as the circulation moves farther inland, and the cyclone is expected
to dissipate over the Ohio Valley within 72 hours.

Harvey is moving north-northeastward at about 8 kt.  The cyclone
should turn northeastward around the northwestern portion of a
mid-level ridge that extends westward from the western Atlantic
across the eastern Gulf of Mexico.  This steering pattern is
forecast to take Harvey across the Lower Mississippi and Tennessee
Valleys during the next couple of days.

It should be noted that despite Harvey's weakening, heavy rainfall
and flooding are forecast to occur along the path of Harvey during
the next few days, but its faster forward speed should keep
subsequent rainfall amounts well below what occurred along the
northwest Gulf coast.

This is last advisory issued by the National Hurricane Center on
Harvey.  Future information on this system can be found in public
advisories issued by the Weather Prediction Center beginning at 4 AM
CDT under AWIPS header TCPAT4, WMO header WTNT34 KWNH, and on the
web at http://www.wpc.ncep.noaa.gov.  Additional information can
also be found in products issued by your local National Weather
Service office.

The National Hurricane Center would like to thank all the men and
women that have worked countless hours at local National Weather
Service Forecast offices along the Gulf coast providing life-saving
warnings and information during the past week, on top of preparing
their family and homes for the storm.  The center would also like to
acknowledge the dedication of the Air Force and NOAA Hurricane
Hunter aircraft crews that flew numerous missions into Harvey.  In
addition, NHC thanks the staff at the Weather Prediction Center,
who led efforts to coordinate forecasts of the historic
flooding event, NWS River Forecast Centers that provided flood
guidance, and the Storm Prediction Center, that coordinated tornado
forecasts.

Key Messages:

1. Ongoing catastrophic and life-threatening flooding will continue
across southeastern Texas.  While the threat of heavy rains has
ended in the Houston/Galveston area, catastrophic and life-
threatening flooding will continue in and around Houston, Beaumont/
Port Arthur, and eastward into southwest Louisiana for the rest
of the week.  Isolated storm totals have reached 50 inches over the
upper Texas coast, including the Houston/Galveston metropolitan
area.  Please heed the advice of local officials.  Do not attempt to
travel if you are in a safe place, and do not drive into flooded
roadways.  Refer to products from your local National Weather
Service office and the NOAA Weather Prediction Center for more
information on the flooding hazard.  A summary of rainfall totals
compiled by the Weather Prediction Center can be found at:
www.wpc.ncep.noaa.gov/discussions/nfdscc1.html

2. The flood threat has spread farther north and east, and
additional rainfall accumulations of 3 to 6 inches with isolated
amounts up to 10 inches are expected from southwestern Louisiana and
the adjacent border of eastern Texas northeastward into western
Kentucky through Friday.  Please heed the advice of local officials,
and refer to products from your local National Weather Service
office and the NOAA Weather Prediction Center for more information
on the flooding hazard in these areas.

3. The Weather Prediction Center will issue public advisories on
Harvey as long as it remains a rainfall threat.  These advisories
can continue to be found on the National Hurricane Center website
and at http://www.wpc.ncep.noaa.gov.


FORECAST POSITIONS AND MAX WINDS

INIT  31/0300Z 31.7N  92.3W   30 KT  35 MPH
 12H  31/1200Z 32.8N  91.4W   25 KT  30 MPH...INLAND
 24H  01/0000Z 34.5N  89.7W   25 KT  30 MPH...INLAND
 36H  01/1200Z 35.9N  87.6W   25 KT  30 MPH...INLAND
 48H  02/0000Z 37.0N  85.7W   20 KT  25 MPH...INLAND
 72H  03/0000Z...DISSIPATED

$$
Forecaster Brown

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