WOCN31 CWHX 101145
TROPICAL CYCLONE INFORMATION STATEMENT UPDATED BY THE CANADIAN
HURRICANE CENTRE OF ENVIRONMENT CANADA AT 8:45 AM ADT SATURDAY
10 SEPTEMBER 2011.
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TROPICAL CYCLONE INFORMATION STATEMENT FOR:
      NEWFOUNDLAND
      NOVA SCOTIA.

      FOR HURRICANE KATIA.

      THE NEXT INTERMEDIATE STATEMENT WILL BE ISSUED AT 12:00 PM ADT.
      FOLLOWED BY THE NEXT FULL STATEMENT ISSUED BY 3:00 PM ADT.

      KATIA OVER THE SOUTHWESTERN GRAND BANKS - CURRENTLY GIVING
      STORM TO POSSIBLY HURRICANE-FORCE WINDS TO CANADIAN OFFSHORE
      WATERS.  CENTRE OF KATIA WILL REMAIN WELL AWAY FROM CANADIAN
      SHORES.

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==DISCUSSION==
LOCATION: 43.5 NORTH 50.0 WEST.

ABOUT 425 KILOMETRES SOUTHEAST OF CAPE RACE.

MAXIMUM SUSTAINED WINDS: 130 KM/HOUR.

PRESENT MOVEMENT: EAST-NORTHEAST AT 85 KM/H.

MINIMUM CENTRAL PRESSURE: 955 MB.

2. PUBLIC WEATHER IMPACTS AND WARNINGS SUMMARY.

SEE DETAILS FOR COASTAL INTERESTS BELOW.

A. WIND.

NO WIND IMPACTS EXPECTED OVER LAND AREAS.

B. RAINFALL.

NO RAINFALL EXPECTED OVER LAND AREAS.

C. SURGE/WAVES.

THE PRIMARY IMPACT OF THIS STORM FOR LAND TERRITORY WILL BE THE 
SOUTH-FACING COASTLINES OF NEWFOUNDLAND WITH LARGE SWELLS BREAKING 
ONSHORE.  AS KATIA SPEEDS AWAY TODAY LARGE WAVES ALONG THE ATLANTIC 
COAST OF NOVA SCOTIA WILL SLOWLY SUBSIDE.  BREAKING WAVES OF 3 TO 4 
METRES COULD IMPACT COASTLINES IN SOUTHERN NEWFOUNDLAND TODAY.

SPECTATORS SHOULD STAY WELL BACK FROM THE SURF ZONE.  DANGEROUS RIP 
CURRENTS CAN DEVELOP AT SOME BEACHES, THUS VENTURING INTO THE WATER 
IS STRONGLY DISCOURAGED.

SPECIAL STATEMENT FOR EASTERN NEWFOUNDLAND:

WITH THE PASSAGE OF HURRICANE KATIA WELL OFFSHORE OF NEWFOUNDLAND, 
ITS RAPID FORWARD SPEED OF TRAVEL OVER THE SOUTHERN GRAND BANKS MAY 
TRIGGER RAPID TIDE-LIKE CHANGES IN HARBOUR WATER LEVELS OVER EASTERN
NEWFOUNDLAND.  THE MOST PROBABLE PERIOD FOR THIS WOULD BE THIS 
AFTERNOON OR EARLY EVENING, AND AREAS MOST PRONE TO THIS RANGE FROM 
THE SOUTHERN AVALON TO THE BONAVISTA PENINSULA.  TROPICAL STORMS THAT 
HAVE RACED ACROSS THE GRAND BANKS (MOVING OVER 100 KM/H) IN THE PAST 
HAVE CAUSED WATER LEVELS IN HARBOURS TO RISE AND FALL 2 OR 3 TIMES 
OVER THE SPAN OF AN HOUR AND FLUCTUATE BY AS MUCH AS 2 OR 3 METRES (6 
TO 10 FEET).  THIS IS AN ADVISORY THAT THIS MAY - REPEAT MAY - OCCUR 
AND INTERESTS ALONG THE COAST SHOULD BE ON THE WATCH FOR THIS 
POSSIBILITY.  PREDICTING THE ACTUAL WATER LEVEL CHANGES FOR VARIOUS 
HARBOURS IS VERY DIFFICULT.  THE HIGH (NATURAL) TIDE IN THE REGION 
WILL BE IN THE 7:30 TO 8:30 PM TIME FRAME TODAY, WHEN SUCH EFFECTS 
WOULD HAVE MORE OF AN IMPACT IF THEY OCCUR.

3. MARINE WEATHER IMPACTS AND WARNINGS SUMMARY.

GALE TO STORM FORCE WINDS ARE CURRENTLY OCCURRING OVER SOUTHEASTERN 
MARITIMES MARINE AREAS, BUT SHOULD SUBSIDE LATER THIS MORNING AS 
KATIA MOVES AWAY.  THE LAURENTIAN FAN WEATHER BUOY REPORTED A PEAK 
WIND OF 58 KNOTS (108 KM/H) AS KATIA PASSED SOUTH OF IT AT 2 AM.
ALSO THE TAIL OF THE BANKS BUOY SHOWED A PRESSURE OF 957 MB AS WELL 
AS WINDS GUSTING TO 58 KNOTS AS KATIA PASSED NEAR IT AROUND 8 AM THIS 
MORNING.  THESE GALE TO STORM FORCE WINDS ARE SPREADING THROUGHOUT 
THE SOUTHERN GRAND BANKS THIS MORNING.  ASSOCIATED WAVE HEIGHTS IN 
THE 6 TO 8 METRE RANGE AND POSSIBLY AS HIGH AS 10 METRES ARE EXPECTED 
WITH THESE WINDS NEAR THE TRACK OF KATIA.

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