WOCN31 CWHX 280545 TROPICAL CYCLONE INFORMATION STATEMENT ISSUED BY THE CANADIAN HURRICANE CENTRE OF ENVIRONMENT CANADA AT 2:25 AM ADT SUNDAY 28 AUGUST 2011. --------------------------------------------------------------------- TROPICAL CYCLONE INFORMATION STATEMENT FOR: ATLANTIC PROVINCES SOUTHERN QUEBEC. FOR HURRICANE IRENE. THE NEXT STATEMENT WILL BE ISSUED BY 9:00 AM ADT. VERY LARGE POST-TROPICAL STORM IRENE TO SPREAD RAIN AND WIND OVER EASTERN CANADA TODAY AND MONDAY. --------------------------------------------------------------------- ==DISCUSSION== 1. SUMMARY OF BASIC INFORMATION AT 3.00 AM ADT. LOCATION: 38.2 NORTH 74.8 WEST. ABOUT 60 KILOMETRES NORTHEAST OF WALLOPS ISLAND, VIRGINIA. MAXIMUM SUSTAINED WINDS: 130 KM/H. PRESENT MOVEMENT: NORTH NORTHEAST AT 26 KM/H. MINIMUM CENTRAL PRESSURE: 954 MB. 2. PUBLIC WEATHER IMPACTS AND WARNINGS SUMMARY. THE CANADIAN HURRICANE CENTRE HAS ISSUED TROPICAL STORM WARNINGS FOR THE FUNDY COASTLINES OF NEW BRUNSWICK AND NOVA SCOTIA AS WELL AS THE ATLANTIC COAST OF NOVA SCOTIA SOUTHWEST OF PORTER'S LAKE. HURRICANE IRENE WILL CROSS LONG ISLAND, NEW YORK EARLY THIS AFTERNOON THEN INTO MAINE LATER TONIGHT AND SHOULD TRANSITION INTO A POST-TROPICAL SYSTEM BEFORE IT BEGINS AFFECTING EASTERN CANADIAN TERRITORY. AS IT TRANSITIONS, WIND AND RAINFALL WILL SPREAD FARTHER OUT FROM THE STORM CENTER. IT IS EXPECTED THAT THE HEAVIEST RAINFALL WILL OCCUR TO THE LEFT OF THE TRACK AND HIGHEST WINDS TO THE RIGHT. IT IS EMPHASIZED THAT A SHIFT IN THE EXACT TRACK OR INTENSITY OF IRENE AS IT ENTERS CANADIAN TERRITORY LATE SUNDAY OR MONDAY IS UNIMPORTANT AS IRENE IS A LARGE STORM SYSTEM WITH FAR REACHING IMPACTS. A. WIND. THE ATLANTIC STORM PREDICTION CENTRE HAS ISSUED WIND WARNINGS FOR MAINLAND NOVA SCOTIA, PRINCE EDWARD ISLAND, AND ALL BUT THE NORTHWESTERN CORNER OF NEW BRUNSWICK. WIND GUSTS BETWEEN 90 AND 110 KM/H KM/H ARE POSSIBLE SUNDAY NIGHT. THE QUEBEC STORM PREDICTION CENTER HAS ISSUED WIND WARNINGS FOR PORTIONS OF ST. LAWRENCE RIVER VALLEY AND THE GASPÉ REGIONS OF QUEBEC WHERE WIND GUSTS UP TO 100 KM/H ARE EXPECTED. B. RAINFALL. RAINFALL WARNINGS HAVE BEEN ISSUED FOR ALL BUT EASTERN MOST PORTIONS OF NEW BRUNSWICK. AMOUNTS OF 50 TO 80 MILLIMETRES ARE EXPECTED WITH THE POSSIBILITY SOME LOCAL AREAS IN NORTHWEST NEW BRUNSWICK COULD EXCEED 100 MILLIMETRES THROUGH MONDAY MORNING. THE QUEBEC STORM PREDICTION CENTER HAS ISSUED RAINFALL WARNINGS FOR THE EASTERN TOWNSHIPS EAST OF MONTRÉAL AND THE ST. LAWRENCE RIVER VALLEY. THE RISK OF HIGHEST RAINFALL WILL BE PRIMARILY LEFT OF THE STORM TRACK. IT IS WORTH NOTING THAT MANY PARTS OF EASTERN CANADA HAVE RECEIVED ABOVE NORMAL RAINFALL THIS SUMMER WHICH COULD RAISE THE RISK OF FLOODING. C. SURGE/WAVES. THE POTENTIAL FOR HIGH WINDS PUSHING STORM SURGE AND WAVES FROM THE SOUTHWEST INTO THE BAY OF FUNDY EXISTS WITH THIS STORM. IT IS IMPORTANT TO NOTE THAT SPRING TIDES AROUND MIDNIGHT SUNDAY NIGHT AND MIDDAY MONDAY IN THAT REGION COULD EXACERBATE SURGE/WAVE EFFECTS IF THE STORM WERE TO ARRIVE PRECISELY COINCIDENT WITH THOSE TIDES. NOTE THAT AS OF NOW, THERE IS A TIMING UNCERTAINTY OF +/- 8 HOURS WITH THIS STORM. HIGHER THAN NORMAL WATER LEVELS AND HEAVY POUNDING SURF ARE ALSO POSSIBLE THROUGHOUT THE MARITIME PROVINCES AND EASTERN PORTIONS OF QUEBEC AND THE ST LAWRENCE RIVER/GULF REGION WITH THE ARRIVAL OF THE STORM SUNDAY NIGHT AND MONDAY. 3. MARINE IMPACTS AND WARNINGS SUMMARY. THE ATLANTIC STORM PREDICTION CENTER HAS ISSUED GALE AND STORM FORCE WIND WARNINGS FOR MOST OF THE MARINE DISTRICT WITH THE EXCEPT OF SOME SOUTHERN WATERS. THE QUEBEC STORM PREDICTION CENTER HAS ISSUED GALE AND STORM FORCE WIND WARNINGS FOR AREAS OF THE ST. LAWRENCE RIVER VALLEY. WAVE HEIGHTS OF 6 TO 8 METRES ARE POSSIBLE OVER WESTERN MARITIME WATERS INTO THE BAY OF FUNDY TONIGHT OR EARLY MONDAY MONRING. LARGE WAVES COULD OCCUR OVER PORTIONS OF THE GULF OF ST. LAWRENCE ON MONDAY. VISIT WEATHEROFFICE.GC.CA/HURRICANE (ALL IN LOWER CASE) FOR THE LATEST: - FORECAST POSITION, CENTRAL PRESSURE TABLE. - STRENGTH AND PREDICTED WIND RADII TABLE. - HURRICANE TRACK INFORMATION MAP. - TECHNICAL DISCUSSION. PLEASE ALSO REFER TO THE PUBLIC AND MARINE FORECASTS AND WARNINGS ISSUED BY ENVIRONMENT CANADA FOR YOUR AREA. END/MARCH