Looks like New Orleans might get it again - we in Atlantic Canada are getting soaked again
WOCN31 CWHX 071200
POST-TROPICAL STORM HANNA INFORMATION STATEMENT ISSUED BY THE
CANADIAN HURRICANE CENTRE OF ENVIRONMENT CANADA AT 9.00 AM ADT
SUNDAY 07 SEPTEMBER 2008.
THE NEXT STATEMENT WILL BE ISSUED BY 12.00 PM ADT
... POST-TROPICAL STORM HANNA TO CROSS THE MARITIMES
TODAY AND NEWFOUNDLAND TONIGHT...
1. CURRENT POSITION, STRENGTH, CENTRAL PRESSURE AND MOTION
AT 9.00 AM ADT... POST-TROPICAL STORM HANNA WAS LOCATED NEAR
LATITUDE 42.9 N AND LONGITUDE 68.7 W... ABOUT 80 NAUTICAL MILES
OR 155 KM EAST SOUTHEAST OF PORTLAND . MAXIMUM SUSTAINED WINDS
ARE ESTIMATED AT 45 KNOTS... 83 KM/H... AND CENTRAL PRESSURE AT 995
MB. HANNA IS MOVING NORTHEAST AT 39 KNOTS... 72 KM/H.
2. FORECAST POSITION, CENTRAL PRESSURE AND STRENGTH
DATE TIME LAT LON MSLP MAX WIND
ADT MB KTS KMH
SEP 07 9.00 AM 42.9N 68.7W 995 45 83 POST-TROPICAL
SEP 07 3.00 PM 45.4N 64.5W 996 45 83 POST-TROPICAL
SEP 07 9.00 PM 46.8N 60.8W 996 45 83 POST-TROPICAL
SEP 08 3.00 AM 47.9N 57.0W 996 45 83 POST-TROPICAL
SEP 08 9.00 AM 48.9N 53.3W 994 45 83 POST-TROPICAL
SEP 08 3.00 PM 49.5N 50.9W 991 45 83 POST-TROPICAL
SEP 08 9.00 PM 50.3N 48.8W 988 45 83 POST-TROPICAL
SEP 09 3.00 AM 51.3N 44.6W 985 50 93 POST-TROPICAL
SEP 09 9.00 AM 52.2N 40.2W 984 50 93 POST-TROPICAL
SEP 09 3.00 PM 53.2N 35.2W 984 50 93 POST-TROPICAL
SEP 09 9.00 PM 54.2N 30.2W 984 50 93 POST-TROPICAL
3. PUBLIC WEATHER IMPACTS AND WARNINGS SUMMARY
POST-TROPICAL STORM HANNA IS BRINGING PERIODS OF HEAVY
RAIN TO THE CENTRAL MARITIMES. RAINFALL WARNINGS ARE IN EFFECT
FOR SOUTHERN NEW BRUNSWICK..PEI AND NORTHERN AND WESTERN NOVA
SCOTIA. TOTAL RAINFALLS OF UP TO 130 MM ARE POSSIBLE LOCALLY
ACROSS SOUTHERN NEW BRUNSWICK. WINDS GUSTING UP TO 70 KM/H
CAN BE EXPECTED OVER NOVA SCOTIA. WINDS WILL NOT BE MUCH OF A
FACTOR OVER NEW BRUNSWICK.
RAIN AT TIMES HEAVY HAS BEGUN OVER SOUTHERN NEWFOUNDLAND AND
WILL PERSIST OVER PORTIONS OF THE ISLAND TONIGHT AND MONDAY.
GUSTY NORTHERLY WINDS CAN BE EXPECTED OVER EASTERN PORTIONS
OF NEWFOUNDLAND AS POST-TROPICAL HANNA MOVES EAST OF THE
ISLAND ON MONDAY. RAINFALL WARNINGS HAVE BEEN ISSUED BY THE
NEWFOUNDLAND AND LABRADOR WEATHER OFFICE FOR PORTIONS OF
NEWFOUNDLAND AS A RESULT.
4. MARINE WEATHER IMPACTS AND WARNINGS SUMMARY
GALES ARE FORECAST OVER MARITIME WATERS SOUTH OF THE TRACK OF
POST-TROPICAL STORM HANNA TODAY. WAVE HEIGHTS ASSOCIATED WITH
THESE WINDS SHOULD REACH NEAR 5 METRES IN THE OFFSHORE REGIONS
BY LATE SUNDAY.
GALES WILL SPREAD INTO EASTERN AND SOUTHERN NEWFOUNDLAND WATERS
TONIGHT AND MONDAY.
5. TECHNICAL DISCUSSION FOR METEOROLOGISTS
A. ANALYSIS
THE CENTRE OF HANNA IS OVER THE GULF OF MAINE. THE LATEST
RADAR DATA SHOWS THE BULK OF THE HEAVIEST RAIN IS LEFT
OF THE STORM'S TRACK WHICH IS TYPICAL FOR EXTRATROPICAL
TRANSITIONING SYSTEMS. A COUPLE OF AUTOMATIC REPORTING
STATIONS - POINT LEPREAU AND MECHANIC SETTLEMENT IN SOUTHERN
NEW BRUNSWICK - HAVE OBSERVED RAINFALL RATES IN EXCESS OF 30
MILLIMETERS PER HOUR IN THE PAST 3 HOURS. THE STRONGEST WINDS
OBSERVED ARE TO THE RIGHT OF HANNA'S TRACK..ALSO TYPICAL OF
EXTRATROPICAL TRANSITION.
B. PROGNOSTIC
THE GREATEST CONCERN WITH POST-TROPICAL HANNA IS RAINFALL.
COMPUTER MODELS ARE STILL CONSISTENT WITH REGARDS TO THE TRACK
AND INTENSITY OF HANNA..WITH THE CONSENSUS TAKING THE CENTRE
OF POST-TROPICAL HANNA ALONG A PATH IN THE VICINITY OF THE BAY
OF FUNDY AROUND NOON TODAY AND OVER CABOT STRAIT NEAR MIDNIGHT
TONIGHT. POST-TROPICAL HANNA WILL THEN TRACK NORTHEASTWARD TO
LIE NEAR THE EAST COAST OF NEWFOUNDLAND MONDAY MORNING. A
SHORTWAVE TROUGH INTERACTING WITH POST-TROPICAL HANNA WILL CAUSE
THE SYSTEM TO SLOW DOWN AND INTENSIFY MONDAY. MONDAY NIGHT
POST-TROPICAL HANNA WILL EXIT CANADIAN WATERS AS AN INTENSIFYING
BAROCLINIC STORM OVER THE NORTH ATLANTIC.
C. PUBLIC WEATHER
SEE ABOVE.
D. MARINE WEATHER
THESE WIND RADII REPRESENT BOTH HANNA AND THE LARGE SCALE CIRCULATION
AT THE OUTER EDGES OF THE STORM.
PREDICTED WIND RADII (NM)
TIME GALES STORMS HURRICANE
NE SE SW NW NE SE SW NW NE SE SW NW
07/12Z 0 175 150 0 0 0 0 0 0 0 0 0
07/18Z 0 175 175 0 0 0 0 0 0 0 0 0
08/00Z 0 175 175 0 0 0 0 0 0 0 0 0
08/06Z 175 175 175 0 0 0 0 0 0 0 0 0
08/12Z 200 225 175 0 0 0 0 0 0 0 0 0
08/18Z 250 250 200 60 0 0 0 0 0 0 0 0
09/00Z 250 250 200 90 0 0 0 0 0 0 0 0
09/06Z 250 250 200 150 0 0 90 90 0 0 0 0
09/12Z 250 250 150 150 0 0 90 90 0 0 0 0
09/18Z 250 250 150 150 0 0 90 90 0 0 0 0
10/00Z 250 250 150 150 0 0 90 90 0 0 0 0
