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Tropical Depression Henri Intermediate Advisory Number 28A
NWS National Hurricane Center Miami FL AL082021
800 PM EDT Sun Aug 22 2021
...HENRI WEAKENING BUT STILL EXPECTED TO PRODUCE HEAVY
RAINFALL AND FLOODING ACROSS PORTIONS OF SOUTHERN NEW ENGLAND AND
THE NORTHERN MID-ATLANTIC STATES THROUGH MONDAY...
SUMMARY OF 800 PM EDT...0000 UTC...INFORMATION
ABOUT 10 MI...15 KM SW OF HARTFORD CONNECTICUT
ABOUT 90 MI...140 KM NE OF NEW YORK CITY
MAXIMUM SUSTAINED WINDS...35 MPH...55 KM/H
PRESENT MOVEMENT...WNW OR 290 DEGREES AT 7 MPH...11 KM/H
MINIMUM CENTRAL PRESSURE...1000 MB...29.53 INCHES
WATCHES AND WARNINGS
CHANGES WITH THIS ADVISORY:
SUMMARY OF WATCHES AND WARNINGS IN EFFECT:
There are no coastal watches or warnings in effect.
For storm information specific to your area, including possible
inland watches and warnings, please monitor products issued by your
local National Weather Service forecast office.
DISCUSSION AND OUTLOOK
At 800 PM EDT (0000 UTC), the center of Tropical Depression Henri
was located by surface observations near latitude 41.7 North,
longitude 72.8 West. Henri is moving toward the west-northwest near
7 mph (11 km/h), and this general motion with a decrease in forward
speed is expected through early Monday morning. A slow turn toward
the north is expected Monday morning, followed by a motion toward
the east-northeast Monday afternoon. On the forecast track, Henri is
expected to slow down further and possibly stall near the
Connecticut-New York border tonight, then move across northern
Connecticut or southern Massachusetts by Monday afternoon.
Maximum sustained winds have decreased to near 35 mph (55 km/h)
with higher gusts. Additional weakening is forecast during the next
couple of days.
The estimated minimum central pressure based on nearby surface
observations is 1000 mb (29.53 inches).
HAZARDS AFFECTING LAND
Key messages for Henri can be found in the Tropical Cyclone
Discussion under AWIPS header MIATCDAT3, WMO header WTNT43 KNHC
and on the web at
RAINFALL: Henri is expected to produce storm total rainfall of 3 to
6 inches with locally higher amounts expected over portions of Long
Island, New England, southeast New York, New Jersey, and northeast
Pennsylvania Sunday into Monday. Isolated maximum totals of 10 to 12
inches are possible across northern New Jersey into southern New
York. Heavy rainfall from Henri will continue to result in
considerable flash, urban, and small stream flooding, along with the
potential for additional minor to isolated moderate river flooding.
For the latest rainfall reports and wind gusts associated with
Henri at the following link:
SURF: Swells are expected to continue across much of the east
coast of the U.S. and Atlantic Canada tonight and continue into
Monday. These swells could cause life-threatening surf and rip
current conditions. Please consult products from your local
Next complete advisory at 1100 PM EDT.