Hurricane Katia
Public Advisory 23
000
WTNT33 KNHC 032047
TCPAT3
BULLETIN
TROPICAL STORM LEE ADVISORY NUMBER 9
NWS NATIONAL HURRICANE CENTER MIAMI FL AL132011
400 PM CDT SAT SEP 03 2011
...SOGGY LEE LUMBERING NORTHWARD TOWARD SOUTHERN LOUISIANA...
TROPICAL STORM WARNING EXTENDED EASTWARD...
SUMMARY OF 400 PM CDT...2100 UTC...INFORMATION
----------------------------------------------
LOCATION...29.4N 92.1W
ABOUT 60 MI...95 KM WSW OF MORGAN CITY LOUISIANA
ABOUT 55 MI...90 KM S OF LAFAYETTE LOUISIANA
MAXIMUM SUSTAINED WINDS...60 MPH...95 KM/H
PRESENT MOVEMENT...N OR 360 DEGREES AT 4 MPH...6 KM/H
MINIMUM CENTRAL PRESSURE...989 MB...29.21 INCHES
WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY...
THE TROPICAL STORM WATCH HAS BEEN REPLACED WITH A TROPICAL STORM
WARNING FROM THE ALABAMA/FLORIDA BORDER EASTWARD TO DESTIN FLORIDA.
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 400 PM CDT...2100 UTC...THE CENTER OF TROPICAL STORM LEE WAS
LOCATED BY SATELLITE AND OIL PLATFORM OBSERVATIONS NEAR LATITUDE
29.4 NORTH...LONGITUDE 92.1 WEST. LEE IS DRIFTING ERRATICALLY
TOWARD THE NORTH NEAR 4 MPH...6 KM/H. A SLOW AND POSSIBLY ERRATIC
MOTION TOWARD THE NORTH OR NORTH-NORTHWEST IS EXPECTED DURING THE
NEXT 24 HOURS...FOLLOWED BY A TURN TOWARD THE NORTHEAST. ON THE
FORECAST TRACK...THE CENTER OF LEE IS EXPECTED TO CROSS THE
LOUISIANA COAST LATER THIS AFTERNOON OR EVENING...THEN MOVE SLOWLY
ACROSS SOUTHERN LOUISIANA ON SUNDAY.
MAXIMUM SUSTAINED WINDS REMAIN NEAR 60 MPH...95 KM/H...WITH HIGHER
GUSTS. SOME FLUCTUATIONS IN STRENGTH ARE POSSIBLE THIS AFTERNOON
AND TONIGHT...WITH GRADUAL WEAKENING FORECAST TO OCCUR BY SUNDAY
AFTERNOON.
TROPICAL-STORM-FORCE WINDS EXTEND OUTWARD UP TO 230 MILES...370 KM
FROM THE CENTER. AN OFFSHORE OIL RIG SOUTH OF SABINE PASS RECENTLY
REPORTED A SUSTAINED WIND OF 50 MPH...81 KM/H AND A GUST TO 60
MPH...90 KM/H AT AN ELEVATION OF 230 FEET ABOVE THE SURFACE.
REPORTS FROM OFFSHORE OIL RIGS AND LOUISIANA STATE UNIVERSITY
COASTAL OBSERVING SITES INDICATE THE MINIMUM CENTRAL PRESSURE IS
989 MB...29.21 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 SUNDAY. THESE RAINS ARE
EXPECTED TO CAUSE EXTENSIVE FLOODING AND FLASH FLOODING.
STORM SURGE...A STORM SURGE WILL RAISE WATER LEVELS BY AS MUCH AS
3 TO 5 FEET ABOVE GROUND LEVEL ALONG THE LOUISIANA COAST...AND BY
AS MUCH AS 1 TO 3 FEET ABOVE GROUND LEVEL ALONG THE MISSISSIPPI AND
ALABAMA COASTS INCLUDING MOBILE BAY. SEE PRODUCTS ISSUED BY LOCAL
NATIONAL WEATHER SERVICE FORECAST OFFICES FOR MORE DETAILS.
WIND...TROPICAL STORM CONDITIONS ARE EXPECTED TO CONTINUE OVER
PORTIONS OF THE WARNING AREA TONIGHT INTO SUNDAY...AND POSSIBLY
INTO MONDAY.
TORNADOES...A FEW TORNADOES WILL BE POSSIBLE THROUGH TONIGHT OVER
PORTIONS OF SOUTHERN LOUISIANA...SOUTHERN MISSISSIPPI...SOUTHERN
ALABAMA...AND THE FAR WESTERN FLORIDA PANHANDLE.
NEXT ADVISORY
-------------
NEXT INTERMEDIATE ADVISORY...700 PM CDT.
NEXT COMPLETE ADVISORY...1000 PM CDT.
$$
FORECASTER STEWART
000
WTNT32 KNHC 032051
TCPAT2
BULLETIN
TROPICAL STORM KATIA ADVISORY NUMBER 23
NWS NATIONAL HURRICANE CENTER MIAMI FL AL122011
500 PM AST SAT SEP 03 2011
...KATIA SPARRING WITH STRONG UPPER-LEVEL WINDS...KNOCKED DOWN TO A
TROPICAL STORM FOR THE SECOND TIME...
SUMMARY OF 500 PM AST...2100 UTC...INFORMATION
----------------------------------------------
LOCATION...19.9N 56.8W
ABOUT 430 MI...690 KM ENE OF THE NORTHERN LEEWARD ISLANDS
MAXIMUM SUSTAINED WINDS...70 MPH...110 KM/H
PRESENT MOVEMENT...WNW OR 300 DEGREES AT 10 MPH...17 KM/H
MINIMUM CENTRAL PRESSURE...993 MB...29.32 INCHES
WATCHES AND WARNINGS
--------------------
THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT.
DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
AT 500 PM AST...2100 UTC...THE CENTER OF TROPICAL STORM KATIA WAS
LOCATED NEAR LATITUDE 19.9 NORTH...LONGITUDE 56.8 WEST. KATIA IS
MOVING TOWARD THE WEST-NORTHWEST NEAR 10 MPH...17 KM/H...AND THIS
GENERAL MOTION IS EXPECTED TO CONTINUE THROUGH MONDAY.
MAXIMUM SUSTAINED WINDS HAVE DECREASED TO NEAR 70 MPH...110
KM/H...WITH HIGHER GUSTS. FLUCTUATIONS IN INTENSITY ARE POSSIBLE
OVER THE NEXT DAY OR SO...AND KATIA COULD RE-STRENGTHEN BACK TO A
HURRICANE AT ANY TIME.
TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 140 MILES...220 KM
FROM THE CENTER.
ESTIMATED MINIMUM CENTRAL PRESSURE IS 993 MB...29.32 INCHES.
HAZARDS AFFECTING LAND
----------------------
SURF...SWELLS GENERATED BY KATIA ARE AFFECTING THE LESSER ANTILLES
AND COULD BEGIN TO AFFECT BERMUDA BY TONIGHT OR SUNDAY. THESE
SWELLS ARE LIKELY TO CAUSE LIFE-THREATENING SURF AND RIP CURRENT
CONDITIONS. PLEASE CONSULT PRODUCTS FROM YOUR LOCAL WEATHER OFFICE.
NEXT ADVISORY
-------------
NEXT COMPLETE ADVISORY...1100 PM AST.
$$
FORECASTER BERG
