Hurricane Katia
Public Advisory 26
000
WTNT33 KNHC 041450
TCPAT3
BULLETIN
TROPICAL STORM LEE ADVISORY NUMBER 12
NWS NATIONAL HURRICANE CENTER MIAMI FL AL132011
1000 AM CDT SUN SEP 04 2011
...LEE DRIFTING NORTHEASTWARD OVER SOUTH-CENTRAL LOUISIANA...
SUMMARY OF 1000 AM CDT...1500 UTC...INFORMATION
-----------------------------------------------
LOCATION...29.9N 91.9W
ABOUT 45 MI...70 KM W OF MORGAN CITY LOUISIANA
ABOUT 30 MI...45 KM SSE OF LAFAYETTE LOUISIANA
MAXIMUM SUSTAINED WINDS...45 MPH...75 KM/H
PRESENT MOVEMENT...NE OR 40 DEGREES AT 3 MPH...6 KM/H
MINIMUM CENTRAL PRESSURE...986 MB...29.12 INCHES
WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY...
NONE
SUMMARY OF WATCHES AND WARNINGS IN EFFECT...
A TROPICAL STORM WARNING IS IN EFFECT FOR...
* DESTIN FLORIDA WESTWARD TO SABINE PASS TEXAS...INCLUDING
THE CITY OF NEW ORLEANS...LAKE PONTCHARTRAIN...AND LAKE MAUREPAS
FOR STORM INFORMATION SPECIFIC TO YOUR AREA...INCLUDING POSSIBLE
INLAND WATCHES AND WARNINGS...PLEASE MONITOR PRODUCTS ISSUED BY
YOUR LOCAL NATIONAL WEATHER SERVICE FORECAST OFFICE.
DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
AT 1000 AM CDT...1500 UTC...THE CENTER OF TROPICAL STORM LEE WAS
LOCATED NEAR LATITUDE 29.9 NORTH...LONGITUDE 91.9 WEST. LEE IS
DRIFTING TOWARD THE NORTHEAST NEAR 3 MPH...6 KM/H. THIS GENERAL
MOTION IS EXPECTED TO CONTINUE TODAY...FOLLOWED BY A TURN TO THE
EAST-NORTHEAST TONIGHT. ON THE FORECAST TRACK...THE CENTER WILL
MOVE SLOWLY OVER SOUTHERN LOUISIANA TODAY AND TONIGHT.
MAXIMUM SUSTAINED WINDS ARE NEAR 45 MPH...75 KM/H...WITH HIGHER
GUSTS. GRADUAL WEAKENING IS FORECAST DURING THE NEXT COUPLE OF
DAYS.
TROPICAL-STORM-FORCE WINDS EXTEND OUTWARD UP TO 275 MILES...
445 KM...MAINLY EAST AND SOUTHEAST OF THE CENTER. DURING THE PAST
FEW HOURS...A NOAA BUOY LOCATED ABOUT 65 MILES EAST OF THE MOUTH
OF THE MISSISSIPPI RIVER REPORTED A SUSTAINED WIND OF 45 MPH...
72 KM/H AND A GUST TO 49 MPH...79 KM/H. NUMEROUS OFFSHORE OIL RIGS
ALSO CONTINUE TO REPORT SUSTAINED TROPICAL-STORM-FORCE WINDS A FEW
HUNDRED FEET ABOVE THE SURFACE WELL TO THE SOUTHEAST THROUGH
SOUTHWEST OF THE CENTER.
A STORM SURGE VALUE OF MORE THAN 4 FEET RECENTLY OCCURRED JUST SOUTH
OF MORGAN CITY LOUISIANA AT AMERADA PASS.
RECENT REPORTS FROM OIL RIGS AND COASTAL MONITORING STATIONS
INDICATE THE MINIMUM CENTRAL PRESSURE IS 986 MB...29.12 INCHES.
HAZARDS AFFECTING LAND
----------------------
RAINFALL...TROPICAL STORM LEE IS EXPECTED TO PRODUCE TOTAL RAIN
ACCUMULATIONS OF 10 TO 15 INCHES FROM THE CENTRAL GULF COAST
NORTHWARD INTO THE TENNESSEE VALLEY...WITH POSSIBLE ISOLATED
MAXIMUM AMOUNTS OF 20 INCHES THROUGH MONDAY NIGHT. THESE RAINS
ARE EXPECTED TO CAUSE EXTENSIVE FLOODING AND FLASH FLOODING.
STORM SURGE...WATER LEVELS OF AS MUCH AS 3 TO 5 FEET ABOVE GROUND
LEVEL ARE OCCURRING OVER PORTIONS OF THE LOUISIANA COAST. WATER
LEVELS OF AS MUCH AS 1 TO 3 FEET ABOVE GROUND LEVEL ARE OCCURRING
ALONG THE MISSISSIPPI AND ALABAMA COASTS...INCLUDING MOBILE BAY.
WIND...TROPICAL STORM CONDITIONS ARE EXPECTED TO CONTINUE OVER
PORTIONS OF THE WARNING AREA TODAY AND TONIGHT.
TORNADOES...A FEW TORNADOES WILL BE POSSIBLE TODAY AND TONIGHT OVER
PORTIONS OF SOUTHERN LOUISIANA...SOUTHERN MISSISSIPPI...SOUTHERN
ALABAMA...THE FLORIDA PANHANDLE...AND EXTREME SOUTHWESTERN GEORGIA.
NEXT ADVISORY
-------------
NEXT INTERMEDIATE ADVISORY...100 PM CDT.
NEXT COMPLETE ADVISORY...400 PM CDT.
$$
FORECASTER STEWART
000
WTNT32 KNHC 041452
TCPAT2
BULLETIN
HURRICANE KATIA ADVISORY NUMBER 26
NWS NATIONAL HURRICANE CENTER MIAMI FL AL122011
1100 AM AST SUN SEP 04 2011
...KATIA RAPIDLY INTENSIFIES TO A CATEGORY 2 HURRICANE...
SUMMARY OF 1100 AM AST...1500 UTC...INFORMATION
-----------------------------------------------
LOCATION...21.9N 59.2W
ABOUT 360 MI...580 KM NE OF THE NORTHERN LEEWARD ISLANDS
MAXIMUM SUSTAINED WINDS...100 MPH...160 KM/H
PRESENT MOVEMENT...NW OR 305 DEGREES AT 12 MPH...19 KM/H
MINIMUM CENTRAL PRESSURE...966 MB...28.53 INCHES
WATCHES AND WARNINGS
--------------------
THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT.
DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
AT 1100 AM AST...1500 UTC...THE CENTER OF HURRICANE KATIA WAS
LOCATED NEAR LATITUDE 21.9 NORTH...LONGITUDE 59.2 WEST. KATIA IS
MOVING TOWARD THE NORTHWEST NEAR 12 MPH...19 KM/H...AND THIS GENERAL
MOTION IS EXPECTED TO CONTINUE THROUGH TUESDAY. ON THE FORECAST
TRACK...KATIA WILL REMAIN NORTH OF THE NORTHERN LEEWARD ISLANDS.
MAXIMUM SUSTAINED WINDS HAVE INCREASED TO NEAR 100 MPH...160 KM/H...
WITH HIGHER GUSTS. KATIA IS A CATEGORY TWO HURRICANE ON THE
SAFFIR-SIMPSON HURRICANE WIND SCALE. ADDITIONAL STRENGTHENING IS
FORECAST DURING THE NEXT COUPLE OF DAYS...AND KATIA COULD BECOME A
MAJOR HURRICANE BY MONDAY.
HURRICANE-FORCE WINDS EXTEND OUTWARD UP TO 45 MILES...75 KM...FROM
THE CENTER...AND TROPICAL-STORM-FORCE WINDS EXTEND OUTWARD UP TO
175 MILES...280 KM. NOAA BUOY 41044 LOCATED JUST NORTH OF THE
CENTER OF KATIA RECENTLY REPORTED A SUSTAINED WIND OF 90 MPH...144
KM/H AND A GUST TO 107 MPH...173 KM/H.
THE ESTIMATED MINIMUM CENTRAL PRESSURE BASED ON RECENT PRESSURE
REPORTS FROM NOAA BUOY 41044 IS 966 MB...28.53 INCHES.
HAZARDS AFFECTING LAND
----------------------
SURF...SWELLS GENERATED BY KATIA ARE PRIMARILY AFFECTING THE
NORTHERN LESSER ANTILLES BUT SHOULD BEGIN TO SUBSIDE TONIGHT OR
MONDAY. SWELLS COULD BEGIN TO AFFECT BERMUDA BY EARLY NEXT WEEK.
THESE SWELLS ARE LIKELY TO CAUSE LIFE-THREATENING SURF AND RIP
CURRENT CONDITIONS. PLEASE CONSULT PRODUCTS FROM YOUR LOCAL WEATHER
OFFICE.
NEXT ADVISORY
-------------
NEXT COMPLETE ADVISORY...500 PM AST.
$$
FORECASTER BERG
