Low Pressure Centre Combination of Nor'easter and Danny moving away from Newfoundland

Low Pressure Centre Combination of Nor'easter and Danny moving through Newfoundland

Extratropical Storm Danny Merged With a Nor'Easter

AWCN14 CWHX 301256
SPECIAL WEATHER SUMMARY MESSAGE FOR NEW BRUNSWICK ISSUED BY
ENVIRONMENT CANADA AT 9:56 AM ADT SUNDAY 30 AUGUST 2009.

A LOW PRESSURE SYSTEM DEVELOPED ON SATURDAY OFF THE COAST OF NORTH
CAROLINA THEN MOVED INTO THE BAY OF FUNDY OVERNIGHT. THIS LOW
ABSORBED THE MOISTURE AND ENERGY FROM THE DISSIPATING POST-TROPICAL
STORM DANNY.
A WARM FRONT EXTENDING EASTWARD FROM THIS NEW LOW MOVED NORTHWARD
ACROSS NOVA SCOTIA. AHEAD OF THE WARM FRONT COOL AND WINDY CONDITIONS
PREVAILED. BEHIND THE FRONT A SOUTHWEST FLOW OF WARM AIR ALLOWED
TEMPERATURES TO RISE TO NEAR 20 DEGREES COMPARED TO 12 DEGREES AHEAD
OF THE FRONT.

SIGNIFICANT RAINFALLS WERE REPORTED OVER NOVA SCOTIA..PEI AND
SOUTHERN NEW BRUNSWICK. THE LEVEL OF WATER ROSE RAPIDLY IN THE
BROOKS AND RIVERS. HEAVY RAIN MAY HAVE CAUSED FLOODING IN SOME
LOCALITIES. VERY STRONG WINDS CAUSED BY LES SUETES WERE REPORTED
FROM THE CAPE BRETON HIGHLANDS.


HERE ARE UNOFFICIAL RAINFALL AMOUNTS AND WIND DATA RECORDED AT
STATIONS ACROSS THE MARITIMES.

LOCATION RAINFALL (MM) WIND (KM/H)
-----------------------------------------------------

NEW BRUNSWICK...

MONCTON 91 50
BOUCTOUCHE 60 N/A
MECHANIC SETTLEMENT 93 NA
* SAINT JOHN - ERBS COVE NA N/A
SAINT JOHN AIRPORT 108 46
ST STEPHEN NA NA
POINT LEPREAU 108 56
FREDERICTON 50 41
GAGETOWN 55 52
KOUCHBOUGUAC 27 NA
MIRAMICHI 24 54

PRINCE EDWARD ISLAND...

NORTH POINT 64 83
SUMMERSIDE 69 57
CHARLOTTETOWN 106 58
ST PETER'S NA 56
* ALLISTON NA N/A
EAST POINT 63 56


NOVA SCOTIA...

YARMOUTH 87 82
BACCARO POINT 48 61
* DAYTON 96 N/A
WESTERN HEAD 76 80
LUNENBURG N/A 87
ST MARGARET BAY N/A N/A
SHEARWATER 63 74
MCNABS ISLAND N/A N/A
OSBORNE HEAD N/A 82
HALIFAX STANFIELD A 79 91
LOWER SACKVILLE 77 N/A
* JOLLIMORE NA N/A
* CLAYTON PARK NA N/A
STEWIACKE 63 76
MALAY FALLS 47 N/A
BEAVER ISLAND N/A 89
BRIER ISLAND 99 96
KEJIMKUJIK 87 NA
* CALEDONIA N/A N/A
GREENWOOD 73 60
KENTVILLE 86 40
DEBERT 85 61
PARRSBORO 74 56
NAPPAN 80 NA
CARIBOU POINT 50 57
TRACADIE 50 67
HART ISLAND N/A 76
* LOCKPORT 79 73
* WOODS HARBOUR 55 85
* WOODSTOCK 112 NA

* BADDECK NA N/A
SYDNEY 104 65
* NEW VICTORIA NA N/A
LOUISBOURG 53 64
INGONISH BEACH 80 54
NORTH MOUNTAIN 58 59
GRAND ETANG NA 119
CHETICAMP 49 NA
SAINT PAUL ISLAND N/A 113


* DENOTES VOLUNTEER OBSERVER

END

-------------------------------------------------------------------------------------

WOCN31 CWHX 300600
Post tropical Danny information statement issued by the canadian
hurricane centre of Environment Canada at 3.00 AM ADT Sunday
30 August 2009.


... Danny absorbed into the maritime low pressure centre...

Post tropical storm Danny can not be detected on quickscat for 18
hours now. One was able to eye ball an area of convection
Southeast of cap cod and follow that cluster where Danny was suppose
To be.. But that relationship has fallen apart. The models
Still retains a very weak vort centre over the supposed
Position of Danny but after 12 zulu..The machine models lose
Its Resolution.

Thickness are still high surrounding the deep maritime low
Now moving through the Bay of Fundy. This no doubt reflects
The moist gulf of Mexico air that was introduced by a an
Upper trough that originated in the american deep south. Clearly..
This warm unstable airmass riding over the warm frontal zone
In combination with maritime low has produced copious amounts of
Rain. At issue time.. Amounts of 100 mm have fallen so far
In Southern New Brunswick. One can speculate that Danny
Introduced tropical air from the Bahamas into the mix.

In terms of winds.. We could not detect any veering or
Backing of winds on the ocean bouys so Danny has long ago
disconnected itself from the boundary layer. Therefore
It is no longer an issue for the marine forecast as the
Large wind field of the baroclinic field now dominates. Even the
wave field that was previous carried by Danny is now being shaped
And carried forward by the maritime low.

This is the final message from the canadian hurricane centre
messaging on tropical system Danny.

End campbell