Hurricane Maria & Newfoundland

[Derecho]

Hurricane Maria is on a collision course with Newfoundland either as a weak hurricane, strong tropical storm, or post-tropical storm. The Canadian Hurricane Centre has issued watches and warnings.

NHC info: http://www.nhc.noaa.gov/

WTCN31 CWHX 152113
SEVERE WEATHER BULLETIN
ISSUED BY THE CANADIAN HURRICANE CENTRE
OF ENVIRONMENT CANADA
AT 6:13 PM ADT THURSDAY 15 SEPTEMBER 2011.
---------------------------------------------------------------------
TROPICAL STORM WARNING FOR:
=NEW= ST. JOHN'S AND VICINITY
=NEW= AVALON PENINSULA NORTH
=NEW= AVALON PENINSULA SOUTH.

     MARIA REACHES HURRICANE STATUS THIS EVENING THEN INTERACTS WITH
     A NON-TROPICAL LOW AND TROUGH WITH HIGH WIND AND RAIN OVER
     SOUTHEASTERN NEWFOUNDLAND.

     A TROPICAL STORM WARNING MEANS THAT SUSTAINED GALES...WINDS OF
     63 KM/H OR MORE...ARE EXPECTED IN THE SPECIFIED AREAS WITHIN 24
     HOURS.  BY NATURE A TROPICAL STORM ALSO IMPLIES THE THREAT OF
     LOCAL FLOODING FROM HEAVY RAINFALL.

---------------------------------------------------------------------
==DISCUSSION==
HURRICANE MARIA WILL APPROACH THE AVALON PENINSULA FRIDAY AFTERNOON.
THE REMNANTS OF MARIA ARE EXPECTED TO MERGE/INTERACT WITH A
DEVELOPING TROUGH TO ITS NORTH THAT WILL CONNECT TO A MUCH LARGER
NON-TROPICAL LOW OVER LABRADOR.

THERE WILL BE WINDY CONDITIONS THROUGHOUT ATLANTIC CANADA ON FRIDAY
AND SATURDAY AS THE NON-TROPICAL LOW AND TROUGH NORTH OF MARIA UNITE
OVER THE REGION.  HOWEVER WIND GUSTS OF 100 KM/H OR MORE ARE EXPECTED
ON THE AVALON PENINSULA FRIDAY AFTERNOON.

HEAVY RAIN IS EXPECTED ESPECIALLY OVER EASTERN NEWFOUNDLAND WHERE 60
TO 90 MILLIMETRES ARE EXPECTED.  LOCALLY HEAVIER RAINFALL COULD LEAD
TO LOCAL FLOODING IN PRONE AREAS.

PLEASE REFER TO THE LATEST FORECASTS FOR FURTHER DETAILS.

END/FOGARTY/COUTURIER

SEVERE WEATHER BULLETIN
ISSUED BY THE CANADIAN HURRICANE CENTRE OF ENVIRONMENT CANADA
AT 8:59 PM ADT THURSDAY 15 SEPTEMBER 2011.
---------------------------------------------------------------------
HURRICANE WATCH FOR:
=NEW= AVALON PENINSULA SOUTH.

     MARIA REACHED HURRICANE STATUS EARLIER THIS EVENING.  THE STORM
     WILL INTERACT WITH A NON-TROPICAL LOW AND TROUGH AND CAUSE HIGH
     WIND AND RAIN OVER SOUTHEASTERN NEWFOUNDLAND.

     A HURRICANE WATCH MEANS THAT A HURRICANE OR AN INCIPIENT
     HURRICANE CONDITION POSES A POSSIBLE THREAT TO THE SPECIFIED
     AREAS WITHIN 36 HOURS.

---------------------------------------------------------------------
==DISCUSSION==
HURRICANE MARIA WILL APPROACH THE AVALON PENINSULA FRIDAY AFTERNOON.
THE REMNANTS OF MARIA ARE EXPECTED TO MERGE/INTERACT WITH A
DEVELOPING TROUGH TO ITS NORTH THAT WILL CONNECT TO A MUCH LARGER
NON-TROPICAL LOW OVER LABRADOR LATE IN THE DAY FRIDAY.

THERE WILL BE WINDY CONDITIONS THROUGHOUT ATLANTIC CANADA ON FRIDAY
AND SATURDAY AS THE NON-TROPICAL LOW AND TROUGH NORTH OF MARIA UNITE
OVER THE REGION.

HOWEVER OVER SOUTHERN PORTIONS OF THE AVALON PENINSULA WINDS NEAR
100 KM/H ARE EXPECTED WITH HURRICANE FORCE GUSTS POSSIBLE TO 120 KM/H
FRIDAY AFTERNOON.  THESE WIND GUSTS CAN TOPPLE TREES AND BREAK LARGE
BRANCHES, RUSULTING IN DOWNED UTILITY LINES AND POWER INTERRUPTIONS.
DAMAGE TO SIGNAGE AND BUILDING CLADDING/ROOFING MATERIAL IS ALSO
POSSIBLE WHEN WINDS GUST TO 120 KM/H OR MORE.

HEAVY RAIN IS EXPECTED ESPECIALLY OVER EASTERN NEWFOUNDLAND WHERE 60
TO 90 MILLIMETRES ARE EXPECTED.  LOCALLY HEAVIER RAINFALL COULD LEAD
TO LOCAL FLOODING IN PRONE AREAS.

PLEASE REFER TO THE LATEST FORECASTS FOR FURTHER DETAILS.

END/FOGARTY/COUTURIER/HATT

[Derecho]

2am update, CHC has issued a small hurricane warning.

BULLETIN
HURRICANE MARIA INTERMEDIATE ADVISORY NUMBER  38A
NWS NATIONAL HURRICANE CENTER MIAMI FL       AL142011
200 AM AST FRI SEP 16 2011

...HURRICANE WARNING ISSUED FOR PORTIONS OF NEWFOUNDLAND...


SUMMARY OF 200 AM AST...0600 UTC...INFORMATION
----------------------------------------------
LOCATION...40.0N 62.0W
ABOUT 640 MI...1030 KM SW OF CAPE RACE NEWFOUNDLAND
MAXIMUM SUSTAINED WINDS...80 MPH...130 KM/H
PRESENT MOVEMENT...NE OR 35 DEGREES AT 44 MPH...70 KM/H
MINIMUM CENTRAL PRESSURE...984 MB...29.06 INCHES


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

ENVIRONMENT CANADA HAS REPLACED THE HURRICANE WATCH AND TROPICAL
STORM WARNING WITH A HURRICANE WARNING FOR THE COAST OF
NEWFOUNDLAND FROM ARNOLDS COVE TO BRIGUS SOUTH.  THE TROPICAL STORM
WARNING HAS BEEN EXTENDED NORTHWARD FROM JONES HARBOUR TO
CHARLOTTETOWN AND WESTWARD FROM ARNOLDS COVE TO STONES COVE.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT...

A HURRICANE WARNING IS IN EFFECT FOR...
* NEWFOUNDLAND FROM ARNOLDS COVE TO BRIGUS SOUTH

A TROPICAL STORM WARNING IS IN EFFECT FOR...
* NEWFOUNDLAND FROM STONES COVE TO ARNOLDS COVE AND FROM BRIGUS
SOUTH TO CHARLOTTETOWN

A HURRICANE WARNING MEANS THAT HURRICANE CONDITIONS ARE EXPECTED
SOMEWHERE WITHIN THE WARNING AREA...IN THIS CASE WITHIN THE NEXT 12
TO 24 HOURS.  PREPARATIONS TO PROTECT LIFE AND PROPERTY SHOULD BE
RUSHED TO COMPLETION.

A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE
EXPECTED WITHIN THE WARNING AREA...IN THIS CASE WITHIN THE NEXT 12
TO 24 HOURS.

FOR STORM INFORMATION SPECIFIC TO YOUR AREA...PLEASE MONITOR
PRODUCTS ISSUED BY ENVIRONMENT CANADA.


DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
AT 200 AM AST...0600 UTC...THE CENTER OF HURRICANE MARIA WAS LOCATED
NEAR LATITUDE 40.0 NORTH...LONGITUDE 62.0 WEST.  MARIA IS MOVING
TOWARD THE NORTHEAST NEAR 44 MPH...70 KM/H.  THIS GENERAL MOTION
ACCOMPANIED BY A STEADY INCREASE IN FORWARD SPEED IS EXPECTED
THROUGH THE DAY.  ON THE FORECAST TRACK...THE CENTER OF MARIA
SHOULD PASS NEAR OR OVER THE AVALON PENINSULA THIS AFTERNOON.

MAXIMUM SUSTAINED WINDS ARE NEAR 80 MPH...130 KM/H...WITH HIGHER
GUSTS.  MARIA IS A CATEGORY ONE HURRICANE ON THE SAFFIR-SIMPSON
HURRICANE WIND SCALE.  LITTLE CHANGE IN STRENGTH IS EXPECTED BEFORE
MARIA MOVES OVER OR NEAR THE AVALON PENINSULA THIS AFTERNOON.

HURRICANE-FORCE WINDS EXTEND OUTWARD UP TO 45 MILES...75 KM...FROM
THE CENTER...AND TROPICAL-STORM-FORCE WINDS EXTEND OUTWARD UP TO
205 MILES...335 KM.

ESTIMATED MINIMUM CENTRAL PRESSURE IS 984 MB...29.06 INCHES.


HAZARDS AFFECTING LAND
----------------------
WIND...TROPICAL STORM CONDITIONS ARE EXPECTED TO BEGIN ACROSS
SOUTHEASTERN NEWFOUNDLAND WITHIN THE WARNING AREA LATER THIS
MORNING.  HURRICANE CONDITIONS ARE EXPECTED IN THE HURRICANE
WARNING AREA BY MIDDAY.

RAINFALL...RAINFALL AMOUNTS OF 1 TO 3 INCHES CAN BE EXPECTED ACROSS
SOUTHEASTERN NEWFOUNDLAND IN ASSOCIATION WITH MARIA.

STORM SURGE...COASTAL FLOODING IS EXPECTED NEAR AND TO THE EAST OF
WHERE THE CENTER MAKES LANDFALL.  NEAR THE COAST...THE SURGE WILL
BE ACCOMPANIED BY LARGE AND DESTRUCTIVE WAVES.


NEXT ADVISORY
-------------
NEXT COMPLETE ADVISORY...500 AM AST.

$$
FORECASTER BERG/AVILA