Tropical Storm Leslie Churns In Atlantic

Categories: NOAA

Tropical Storm Leslie Churns In Atlantic

MIAMI, Florida — As of 5:00 p.m. Eastern Daylight Time on Monday September 10, 2012, NOAA’s National Hurricane Center in Miami, Florida, issued its tropical weather outlook due to the presence of Tropical Storm Leslie that is creating rough maritime and rip current conditions along the northeastern U.S. Atlantic coast plus a new tropical wave in the mid-Atlantic.

The new tropical wave located several hundred miles west of the Cape Verde Islands (marked as #1 above) is producing an area of showers and thunderstorms. NOAA says that development of this wave into a tropical depression could occur at anytime as it moves west-northwestward at 15 to 20 miles per hour during the next couple of days. This system has a high chance (90%) of becoming a tropical cyclone during the next 48 hours.

Meanwhile, Tropical Storm Leslie is located 550 miles southwest of Cape Race, Newfoundland with maximum sustained winds of 70 miles per hour, with higher gusts, as it moves north-northeast at 35 miles per hour.

A Tropical Storm Warning is in effect for Newfoundland from Indian Harbour to Triton.

A Hurricane Watch is in effect for Newfoundland from Stones Cove to Charlottetown.

NOAA’s National Hurricane Center stormtracker forecasts that Tropical Storm Leslie will take a north-northeasterly track and arrive over eastern Newfoundland early Tuesday.

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The northeast quadrant of Tropical Storm Leslie, the most powerful area of a hurricane in the northern hemisphere, is predicted to remain to the east of Newfoundland.

The majority of the spaghetti models predict that Hurricane Leslie will head north-northeast through Tuesday and take a east-northeasterly turn on Wednesday as it passes by Greenland on its way to Iceland.

The New England coastal regions of Connecticut, Rhode Island, New Hampshire, Maine and Massachusetts could still experience rough maritime conditions through tomorrow.

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TROPICAL STORM LESLIE OFFICIAL PUBLIC ADVISORY:

00
WTNT32 KNHC 102036
TCPAT2

BULLETIN
TROPICAL STORM LESLIE ADVISORY NUMBER  46
NWS NATIONAL HURRICANE CENTER MIAMI FL       AL122012
500 PM AST MON SEP 10 2012

...LESLIE RACING TOWARD NEWFOUNDLAND WITH 70 MPH WINDS...


SUMMARY OF 500 PM AST...2100 UTC...INFORMATION
----------------------------------------------
LOCATION...40.0N 59.1W
ABOUT 550 MI...890 KM SW OF CAPE RACE NEWFOUNDLAND
MAXIMUM SUSTAINED WINDS...70 MPH...110 KM/H
PRESENT MOVEMENT...NNE OR 20 DEGREES AT 35 MPH...56 KM/H
MINIMUM CENTRAL PRESSURE...988 MB...29.18 INCHES


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

NONE.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT...

A HURRICANE WATCH IS IN EFFECT FOR...
* NEWFOUNDLAND FROM STONES COVE TO CHARLOTTETOWN

A TROPICAL STORM WARNING IS EFFECT FOR...
* NEWFOUNDLAND FROM INDIAN HARBOUR TO TRITON

A HURRICANE WATCH MEANS THAT HURRICANE CONDITIONS ARE POSSIBLE
WITHIN THE WATCH AREA...IN THIS CASE WITHIN 24 HOURS.

A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE
EXPECTED SOMEWHERE WITHIN THE WARNING AREA...IN THIS CASE WITHIN 24
HOURS.

FOR STORM INFORMATION SPECIFIC TO YOUR AREA...PLEASE MONITOR
PRODUCTS ISSUED BY YOUR NATIONAL METEOROLOGICAL SERVICE.


DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
AT 500 PM AST...2100 UTC...THE CENTER OF TROPICAL STORM LESLIE WAS
LOCATED NEAR LATITUDE 40.0 NORTH...LONGITUDE 59.1 WEST. LESLIE HAS
INCREASED ITS FORWARD SPEED AND IS NOW MOVING TOWARD THE
NORTH-NORTHEAST NEAR 35 MPH...56 KM/H. THIS GENERAL MOTION WITH
AN ADDITIONAL INCREASE IN FORWARD SPEED IS ANTICIPATED. ON THIS
TRACK...THE CENTER OF LESLIE SHOULD MOVE OVER EASTERN NEWFOUNDLAND
EARLY TUESDAY. HOWEVER...THE WEATHER SHOULD BEGIN TO DETERIORATE
LATER TONIGHT.  

MAXIMUM SUSTAINED WINDS ARE NEAR 70 MPH...110 KM/H...WITH HIGHER
GUSTS.  ONLY SMALL CHANGES IN INTENSITY ARE FORECAST BEFORE LESLIE
MOVES OVER NEWFOUNDLAND...AND THE SYSTEM SHOULD TRANSFORM INTO AN
EXTRATROPICAL OR FRONTAL CYCLONE IN ABOUT 24 HOURS.

TROPICAL-STORM-FORCE WINDS EXTEND OUTWARD UP TO 230 MILES...
370 KM...MAINLY TO THE NORTH AND EAST OF THE CENTER.

ESTIMATED MINIMUM CENTRAL PRESSURE IS 988 MB...29.18 INCHES.


HAZARDS AFFECTING LAND
----------------------
SURF...SWELLS GENERATED BY LESLIE WILL CONTINUE TO AFFECT BERMUDA...
PORTIONS OF THE U.S. EAST COAST...AND THE CANADIAN ATLANTIC
PROVINCES FOR THE NEXT DAY OR TWO. THESE SWELLS COULD CAUSE
LIFE-THREATENING SURF AND RIP CURRENT CONDITIONS. PLEASE CONSULT
PRODUCTS FROM YOUR LOCAL WEATHER OFFICE FOR MORE INFORMATION.

RAINFALL...LESLIE IS EXPECTED TO PRODUCE TOTAL RAINFALL
ACCUMULATIONS OF 2 TO 4 INCHES ACROSS NEWFOUNDLAND AND EASTERN NOVA
SCOTIA. ISOLATED MAXIMUM STORM TOTAL AMOUNTS OF 6 INCHES ARE
POSSIBLE IN ASSOCIATION WITH LESLIE.


NEXT ADVISORY
-------------
NEXT INTERMEDIATE ADVISORY...800 PM AST.
NEXT COMPLETE ADVISORY...1100 PM AST.

$$
FORECASTER AVILA