Here is the your weather forecast for today and tonight with an early look at the the weened and the latest on Isaac...
Today A chance of showers and thunderstorms, mainly after 9am. Partly sunny, with a high near 83. Calm wind becoming southwest around 6 mph in the afternoon. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Hazardous Weather Outlook: SCATTERED THUNDERSTORMS WILL DEVELOP ACROSS THE REGION MAINLY THIS AFTERNOON. SOME OF THE THUNDERSTORMS MAY CONTAIN HEAVY DOWNPOURS THAT MAY RESULT IN LOCALIZED FLOODING. A FEW OF THE STORMS MAY
BECOME SEVERE WITH DAMAGING WIND GUSTS AND LARGE HAIL. THE STORMS SHOULD TAPER OFF THIS EVENING.
Tonight A chance of showers and thunderstorms before 10pm, then a slight chance of showers. Patchy fog between midnight and 1am, then Patchy fog between 3am and 4am. Otherwise, mostly cloudy, with a low around 64. Calm wind. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Patchy fog before 8am. Otherwise, partly sunny, with a high near 83. Light and variable wind. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night A chance of showers and thunderstorms before 11pm, then a slight chance of showers. Mostly cloudy, with a low around 64. Calm wind. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday A slight chance of showers, then a chance of showers and thunderstorms after 10am. Mostly cloudy, with a high near 86. Calm wind becoming north around 5 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday A chance of showers, with thunderstorms also possible after 9am. Mostly cloudy, with a high near 84. Chance of precipitation is 50%.
Sunday Night A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Chance of precipitation is 40%.
Tropical Weather Update:
BULLETIN
TROPICAL STORM ISAAC ADVISORY NUMBER 37
NWS NATIONAL HURRICANE CENTER MIAMI FL AL092012
400 AM CDT THU AUG 30 2012
...ISAAC CONTINUES TO WEAKEN SLOWLY OVER LAND BUT STILL PRODUCING HEAVY RAINS AND SEVERE WEATHER...WATER LEVELS REMAIN HIGH ALONG THE NORTHERN GULF COAST...
SUMMARY OF 400 AM CDT...0900 UTC...INFORMATION
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LOCATION...30.9N 91.6W
ABOUT 55 MI...85 KM SE OF ALEXANDRIA LOUISIANA
ABOUT 110 MI...175 KM NW OF NEW ORLEANS LOUISIANA
MAXIMUM SUSTAINED WINDS...45 MPH...75 KM/H
PRESENT MOVEMENT...NW OR 325 DEGREES AT 8 MPH...13 KM/H
MINIMUM CENTRAL PRESSURE...983 MB...29.03 INCHES
WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY...
THE TROPICAL STORM WARNING WEST OF INTRACOASTAL CITY LOUISIANA TO CAMERON IS DISCONTINUED.
SUMMARY OF WATCHES AND WARNINGS IN EFFECT...
A TROPICAL STORM WARNING IS IN EFFECT FOR...
* INTRACOASTAL CITY LOUISIANA TO THE MISSISSIPPI-ALABAMA BORDER...
INCLUDING LAKE PONTCHARTRAIN AND LAKE MAUREPAS
FOR STORM INFORMATION SPECIFIC TO YOUR AREA...PLEASE MONITOR PRODUCTS ISSUED BY YOUR LOCAL NATIONAL WEATHER SERVICE FORECAST
OFFICE.
DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
AT 400 AM CDT...0900 UTC...THE CENTER OF TROPICAL STORM ISAAC WAS LOCATED NEAR LATITUDE 30.9 NORTH...LONGITUDE 91.6 WEST. ISAAC IS MOVING TOWARD THE NORTHWEST NEAR 8 MPH...13 KM/H. A TURN TOWARD THE NORTH-NORTHWEST IS EXPECTED LATER TODAY...FOLLOWED BY A TURN TOWARD THE NORTH ON FRIDAY. ON THE FORECAST TRACK...THE CENTER OF ISAAC
WILL CONTINUE TO MOVE OVER LOUISIANA TODAY...OVER ARKANSAS ON FRIDAY...AND OVER SOUTHERN MISSOURI FRIDAY NIGHT.
MAXIMUM SUSTAINED WINDS HAVE DECREASED TO NEAR 45 MPH...75 KM/H...WITH HIGHER GUSTS. THE STRONGEST WINDS ARE PRIMARILY OCCURRING OVER WATER OR NEAR THE COAST. STEADY WEAKENING IS EXPECTED DURING THE NEXT 48 HOURS AS ISAAC CONTINUES TO MOVE OVER LAND. ISAAC IS FORECAST TO BECOME A TROPICAL DEPRESSION BY TONIGHT.
TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 175 MILES...280 KM FROM THE CENTER.
THE ESTIMATED MINIMUM CENTRAL PRESSURE BASED ON NEARBY SURFACE OBSERVATIONS IS 983 MB...29.03 INCHES.
HAZARDS AFFECTING LAND
----------------------
EVEN THOUGH ISAAC IS NO LONGER A HURRICANE...LIFE-THREATENING HAZARDS FROM STORM SURGE...INLAND FLOODING...AND TORNADOES ARE STILL OCCURRING.
STORM SURGE...THE COMBINATION OF A STORM SURGE AND THE TIDE WILL CAUSE NORMALLY DRY AREAS NEAR THE COAST TO BE FLOODED BY RISING WATERS. THE WATER COULD REACH THE FOLLOWING DEPTHS ABOVE GROUND IF THE PEAK SURGE OCCURS AT THE TIME OF HIGH TIDE...
* MISSISSIPPI AND SOUTHEASTERN LOUISIANA...5 TO 10 FT
* ALABAMA...2 TO 4 FT
* SOUTH-CENTRAL LOUISIANA...1 TO 3 FT
* FLORIDA PANHANDLE...1 TO 2 FT
THE DEEPEST WATER WILL OCCUR ALONG THE IMMEDIATE COAST IN AREAS OF ONSHORE WINDS. SURGE-RELATED FLOODING DEPENDS ON THE RELATIVE TIMING OF THE SURGE AND THE TIDAL CYCLE...AND CAN VARY GREATLY OVER SHORT DISTANCES. FOR INFORMATION SPECIFIC TO YOUR AREA...PLEASE SEE PRODUCTS ISSUED BY YOUR LOCAL WEATHER SERVICE OFFICE. NEAR THE COAST...THE SURGE WILL BE ACCOMPANIED BY LARGE AND DANGEROUS WAVES.
BASED ON AN OBSERVATION FROM A NATIONAL OCEAN SERVICE TIDE GAUGE AT NEW CANAL STATION LOUISIANA...A STORM SURGE OF 6.3 FEET IS STILL OCCURRING ON THE SOUTHERN SHORE OF LAKE PONTCHARTRAIN.
WIND...TROPICAL STORM CONDITIONS WILL CONTINUE ACROSS THE WARNING AREA THROUGH THIS MORNING.
RAINFALL...ISAAC IS EXPECTED TO PRODUCE TOTAL RAINFALL AMOUNTS OF 7 TO 14 INCHES...WITH POSSIBLE ISOLATED MAXIMUM AMOUNTS OF 25 INCHES...OVER MUCH OF LOUISIANA...MISSISSIPPI...SOUTHWEST ALABAMA AND ARKANSAS THROUGH FRIDAY. THESE RAINS COULD RESULT IN SIGNIFICANT LOWLAND FLOODING.
TORNADOES...ISOLATED TORNADOES ARE POSSIBLE ALONG THE CENTRAL GULF COAST REGION AND PARTS OF THE LOWER MISSISSIPPI RIVER VALLEY THROUGH TODAY.
SURF...DANGEROUS SURF AND RIP CURRENT CONDITIONS WILL CONTINUE TO AFFECT THE WEST COAST OF FLORIDA AND THE NORTHERN GULF COAST FOR THE NEXT DAY OR SO.
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