HYDROLOGIC OUTLOOK NATIONAL WEATHER SERVICE JACKSON MS 629 PM CDT MON AUG 27 2012 ...TROPICAL STORM ISAAC EXPECTED TO PRODUCE MODERATE TO MAJOR FLOODING ACROSS SOUTH MISSISSIPPI AND MINOR TO MODERATE FLOODING IN CENTRAL MISSISSIPPI... TROPICAL STORM ISAAC IS APPROACHING THE MISSISSIPPI AND SOUTHEAST LOUISIANA COASTLINES. THE STORM IS EXPECTED TO BRING AN INFLUX OF DEEP TROPICAL MOISTURE TO SOUTH MISSISSIPPI AS IT MOVES INLAND. HEAVY RAINFALL WILL DEVELOP AS SOME OF THE OUTER FEEDER BANDS MOVE INTO SOUTHEAST MISSISSIPPI ON TUESDAY AFTERNOON. ISAAC WILL MOVE INLAND TUESDAY NIGHT NEAR THE MOUTH OF THE MISSISSIPPI RIVER AND WILL SLOWLY MOVE TO SOUTHWEST MISSISSIPPI BY THURSDAY. THE SLOW MOVEMENT WILL ENHANCE RAINFALL TOTALS ACROSS SOUTH AND PORTIONS OF CENTRAL MISSISSIPPI. SOME HEAVY RAINFALL COULD ALSO BE POSSIBLE ACROSS NORTHEAST LOUISIANA AND SOUTHEAST ARKANSAS AS THE SYSTEM PROGRESSES INTO THE REGION. FLASH FLOODING AND SIGNIFICANT RIVER FLOODING ARE PROBABLE. RAINFALL TOTALS FROM 5 TO 10 INCHES WITH LOCALLY HEAVIER AMOUNTS ARE POSSIBLE FROM TUESDAY NIGHT INTO WEDNESDAY NIGHT ACROSS SOUTH MISSISSIPPI WITH AMOUNTS UP TO 15 INCHES POSSIBLE BY THE TIME THE STORM MOVES OUT OF THE SOUTH. RAINFALL ACROSS CENTRAL MISSISSIPPI COULD APPROACH 5 INCHES FROM WEDNESDAY MORNING TO THURSDAY MORNING WITH STORM TOTALS APPROACHING FROM 8 TO 10 INCHES BY THE TIME THE STORM MOVES OUT OF THIS AREA. OUR NORTHERN AREAS OF MISSISSIPPI CAN EXPECT RAINFALL AMOUNTS FROM 4 TO 7 INCHES. RAINFALL AMOUNTS FROM 4 TO 7 INCHES ARE ALSO POSSIBLE ACROSS NORTHEAST LOUISIANA AND SOUTHEAST ARKANSAS. THIS COULD POSSIBLY BE THE MOST SIGNIFICANT TROPICAL RAINFALL EVENT TO OCCUR ACROSS SOUTH MISSISSIPPI IN MANY YEARS. MODERATE TO MAJOR RIVER FLOODING IS POSSIBLE ACROSS THE LOWER PEARL RIVER, LEAF RIVER, TALLAHALA CREEK, AND POSSIBLY THE CHICKASAWHAY RIVER. MINOR TO MODERATE FLOODING IS POSSIBLE ALONG THE HOMOCHITTO RIVER AS THE SYSTEM MOVES NEAR THAT AREA ON THURSDAY. THE PEARL RIVER AND BIG BLACK RIVERS IN CENTRAL MISSISSIPPI COULD SEE MINOR TO MODERATE FLOODING. RIVERS IN NORTHEAST LOUISIANA AND SOUTHEAST ARKANSAS SHOULD SEE SIGNIFICANT RISES AND COULD APPROACH MINOR FLOOD STAGE AS THE SYSTEM MOVES NORTHWARD ON THURSDAY INTO FRIDAY. MINOR FLOODING IS POSSIBLE ACROSS SOME OF THE YAZOO RIVER BASIN TRIBUTARIES. HEAVY RAINFALL ALONG OUTER BANDS COULD CAUSE SIGNIFICANT RISES ALONG OUR TOMBIGBEE TRIBUTARIES AS WELL. THIS SYSTEM WARRANTS KEEPING A CLOSE WATCH FOR THOSE LIVING IN FLOOD PRONE AREAS ACROSS THE SOUTHERN TWO THIRDS OF MISSISSIPPI, NORTHEAST LOUISIANA, AND SOUTHEAST ARKANSAS.
***DO NOT USE THIS WEBSITE AS YOUR SOLE SOURCE OF WEATHER INFORMATION, ESPECIALLY WATCHES AND WARNINGS. THIS WEBSITE DELIVERS FOCUSED INFORMATION FOR A SPECIFIC GEOGRAPHIC AREA AND IS NOT INTENDED TO PROVIDE TIMELY WEATHER WARNING INFORMATION***
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