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Tropical Depression HENRI Advisory Number 30
 
Issued 09:00Z Aug 23, 2021
 
Advisory Selection
View advisory number:  34   33   32   31   30   


BULLETIN
Tropical Depression Henri Advisory Number  30
NWS Weather Prediction Center College Park MD   AL082021
500 AM EDT Mon Aug 23 2021

...SLOW-MOVING HENRI EXPECTED TO CONTINUE TO PRODUCE HEAVY RAINFALL
AND FLOODING ACROSS PORTIONS OF SOUTHERN NEW ENGLAND AND THE
NORTHERN MID-ATLANTIC STATES THROUGH TODAY...


SUMMARY OF 500 AM EDT...0900 UTC...INFORMATION
----------------------------------------------
LOCATION...41.6N 74.4W
ABOUT 60 MI...95 KM NNW OF NEW YORK CITY
ABOUT 90 MI...145 KM W OF HARTFORD CONNECTICUT
MAXIMUM SUSTAINED WINDS...30 MPH...45 KM/H
PRESENT MOVEMENT...E OR 90 DEGREES AT 1 MPH...2 KM/H
MINIMUM CENTRAL PRESSURE...1005 MB...29.68 INCHES


WATCHES AND WARNINGS
--------------------
Flood watches are in effect across eastern Pennsylvania, southeast
New York, New Jersey, Long Island, and portions of New England.


DISCUSSION AND OUTLOOK
----------------------
At 500 AM EDT (0900 UTC), the center of Tropical Depression Henri
was located near latitude 41.6 North, longitude 74.4 West. The
depression is nearly stationary at the moment, but is expected to
begin an eastward motion by later this morning into the afternoon
hours.

Maximum sustained winds are near 30 mph (45 km/h) with higher gusts.
Little change in strength is forecast during the next 48 hours.

The estimated minimum central pressure is 1005 mb (29.68 inches).


HAZARDS AFFECTING LAND
----------------------

RAINFALL: Henri is expected to produce additional rainfall of 1 to 3
inches, with locally higher amounts possible, over portions of Long
Island, New England, southeast New York, New Jersey, and eastern
Pennsylvania through today. Heavy rainfall from Henri will continue
to result in limited to considerable flash, urban, and small stream
flooding impacts, along with minor to isolated moderate river
flooding.

For the latest rainfall reports and wind gusts associated with
Tropical Depression Henri at the following link:
available at www.wpc.ncep.noaa.gov/discussions/nfdscc3.html

SURF:  Swells are expected to continue across much of the east coast
of the U.S. and Atlantic Canada through today. These swells could
cause life-threatening surf and rip current conditions. Please
consult products from your local weather office.

NEXT ADVISORY
-------------
Next complete advisory at 1100 AM EDT.


Forecaster Chenard

FORECAST POSITIONS AND MAX WINDS

INIT  23/0900Z 41.6N  74.4W   25 KT  30 MPH...INLAND
 12H  23/1800Z 41.6N  73.9W   25 KT  30 MPH...INLAND
 24H  24/0600Z 41.7N  71.4W   25 KT  30 MPH...INLAND
 36H  24/1800Z 42.3N  68.2W   20 KT  25 MPH...POST-TROPICAL
 48H  25/0600Z...DISSIPATED