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Potential Tropical Cyclone TWO (Text)


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Potential Tropical Cyclone Two Advisory Number   3
NWS National Hurricane Center Miami FL       AL022019
1000 PM CDT Wed Jul 10 2019

...SYSTEM IS ALMOST A TROPICAL DEPRESSION...
...STORM SURGE, HEAVY RAINS, AND HURRICANE CONDITIONS ARE
POSSIBLE ACROSS THE NORTH-CENTRAL GULF COAST IN A COUPLE OF DAYS...


SUMMARY OF 1000 PM CDT...0300 UTC...INFORMATION
-----------------------------------------------
LOCATION...27.7N 88.0W
ABOUT 120 MI...190 KM SE OF THE MOUTH OF THE MISSISSIPPI RIVER
ABOUT 240 MI...385 KM SE OF MORGAN CITY LOUISIANA
MAXIMUM SUSTAINED WINDS...30 MPH...45 KM/H
PRESENT MOVEMENT...WSW OR 245 DEGREES AT 9 MPH...15 KM/H
MINIMUM CENTRAL PRESSURE...1009 MB...29.80 INCHES


WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY...

None.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT...

A Storm Surge Watch is in effect for...
* Mouth of the Pearl River to Intracoastal City

A Hurricane Watch is in effect for...
* Mouth of the Mississippi River to Cameron

A Tropical Storm Watch is in effect for...
* Mouth of the Mississippi River northward to the Mouth of the Pearl
River

A Storm Surge Watch means there is a possibility of life-
threatening inundation from rising water moving inland from the
coastline in the indicated locations during the next 48 hours.
For a depiction of areas at risk please see the National Weather
Service Storm Surge Watch/Warning Graphic available at
hurricanes.gov.

A Hurricane Watch means that hurricane conditions are possible
within the watch area.  A watch is typically issued 48 hours
before the anticipated first occurrence of tropical-storm-force
winds conditions that make outside preparations difficult or
dangerous.

A Tropical Storm Watch means that tropical storm conditions are
possible within the watch area generally within 48 hours.

Interests elsewhere along the U.S. Gulf Coast from the Upper Texas
Coast to the Florida Panhandle should monitor the progress of this
system.

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 1000 PM CDT (0300 UTC), the disturbance was centered near
latitude 27.7 North, longitude 88.0 West.  The system is moving
toward the west-southwest near 9 mph (15 km/h). A motion toward the
west is expected on Thursday, followed by a west-northwest motion on
Friday and a northwestward motion by early Saturday. On the forecast
track, the system is expected to approach the Louisiana coast this
weekend.

Maximum sustained winds remain near 30 mph (45 km/h) with higher
gusts. Strengthening is forecast during the next couple of days, and
the disturbance is forecast to become a tropical depression early
Thursday, a tropical storm by late Thursday, and a hurricane by late
Friday.

The circulation of the low continues to become better defined, and
the system is expected to become a tropical depression on Thursday.
*Formation chance through 48 hours...high...near 100 percent
*Formation chance through 5 days...high...near 100 percent

The estimated minimum central pressure based on data from the NOAA
Hurricane Hunters and surface observations is 1009 mb (29.80
inches).


HAZARDS AFFECTING LAND
----------------------
Key Messages for this system can be found in the Tropical Cyclone
Discussion under AWIPS header MIATCDAT2 and WMO header WTNT32 KNHC.

STORM SURGE:  The combination of a dangerous storm surge and the
tide will cause normally dry areas near the coast to be flooded by
rising waters moving inland from the shoreline.  The water could
reach the following heights above ground somewhere in the indicated
areas if the peak surge occurs at the time of high tide...

Mouth of the Pearl River to Intracoastal City...3 to 6 ft

Surge-related flooding depends on the relative timing of the surge
and the tidal cycle, and can vary greatly over short distances. For
information specific to your area, please see products issued by
your local National Weather Service forecast office.

RAINFALL:  The system is expected to produce total additional rain
accumulations of 10 to 15 inches near and inland of the central Gulf
Coast through early next week, with isolated maximum rainfall
amounts of 20 inches.

Rainfall amounts exceeding 6 to 9 inches have already occurred
across portions of the New Orleans metropolitan area today, which
has resulted in flooding.

WIND:  Hurricane conditions are possible within the Hurricane Watch
area by Friday night, with tropical storm conditions possible by
early Friday.


NEXT ADVISORY
-------------
Next intermediate advisory at 100 AM CDT.
Next complete advisory at 400 AM CDT.

$$
Forecaster Cangialosi

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Page last modified: Monday, 21-Oct-2019 12:09:06 UTC