FXCN31 CWHX 290000
TROPICAL CYCLONE TECHNICAL INFORMATION STATEMENT ISSUED BY THE 
CANADIAN HURRICANE CENTRE OF ENVIRONMENT CANADA AT 9.00 PM ADT
SUNDAY 28 AUGUST 2011.

THE NEXT STATEMENT WILL BE ISSUED BY 3.00 AM ADT

1. CURRENT POSITION, STRENGTH, CENTRAL PRESSURE AND MOTION

AT 9.00 PM ADT, POST-TROPICAL STORM IRENE WAS LOCATED NEAR
LATITUDE 44.1 N AND LONGITUDE 72.1 W , ABOUT 40 NAUTICAL MILES
OR 70 KM EAST OF BURLINGTON. MAXIMUM SUSTAINED WINDS ARE
ESTIMATED AT 50 KNOTS ( 93 KM/H ) AND CENTRAL PRESSURE AT 978
MB. IRENE IS MOVING NORTH NORTHEAST AT 23 KNOTS ( 43 KM/H ).

2. FORECAST POSITION, CENTRAL PRESSURE AND STRENGTH

DATE     TIME     LAT    LON   MSLP  MAX WIND
          ADT                    MB  KTS  KMH
AUG 28  9.00 PM  44.1N  72.1W   978   50   93 POST-TROPICAL
AUG 29  9.00 AM  48.6N  68.2W   979   50   93 POST-TROPICAL
AUG 29  9.00 PM  52.1N  62.4W   980   50   93 POST-TROPICAL
AUG 30  9.00 AM  54.8N  55.1W   980   50   93 POST-TROPICAL
AUG 30  9.00 PM  56.6N  46.7W   980   45   83 POST-TROPICAL
AUG 31  9.00 AM  58.4N  37.5W   981   40   74 POST-TROPICAL

3. TECHNICAL DISCUSSION

A. ANALYSIS

BASED ON SATELLITE AND RADAR SIGNATURE, AS WELL AS SURFACE 
OBSERVATIONS SHOWING A BROADENING OF THE CENTRAL PRESSURE PATTERN, 
IRENE IS NOW DECLARED POST-TROPICAL. INITIAL INTENSITY IS MAINTAINED 
AT 50 KNOTS BY THE CHC BASED ON THE CURRENT AND ANTICIPATED WIND 
FIELD AS A FAIRLY INTENSE POST-TROPICAL SYSTEM. IRENE CONTINUES TO 
INCREASE ITS FORWARD SPEED AND IS NOW MOVING NORTH-NORTHEAST AT 25 
KNOTS.


B. PROGNOSTIC

AS A LARGE POST-TROPICAL SYSTEM, IRENE IS NOT EXPECTED TO WEAKEN MUCH 
FURTHER AS IT MOVES ACROSS SOUTHEASTERN QUEBEC AND IS EXPECTED TO 
MAINTAIN ITS LARGE WIND FIELD. WE MAINTAIN THIS AS A 50 KNOT SYSTEM 
THROUGH LATE MONDAY NIGHT, GIVEN THAT THERE WILL BE WIND ENHANCEMENT 
OVER CERTAIN BAYS AND COASTLINES AROUND ATLANTIC CANADA.


C. PREDICTED WIND RADII (NM)

TIME          GALES           STORMS            HURRICANE
         NE  SE  SW  NW    NE  SE  SW  NW    NE  SE  SW  NW
29/00Z  240 310 145 115   115 135  55  25     0   0   0   0
29/12Z  220 345 155  95    90 110  35  10     0   0   0   0
30/00Z  205 350 175  80    70  90  15   0     0   0   0   0
30/12Z  195 335 190  75    30  40   0   0     0   0   0   0
31/00Z  185 325 185  75     0   0   0   0     0   0   0   0
31/12Z  180 320 180  75     0   0   0   0     0   0   0   0

END/BORGEL/FOGARTY/HATT