THE HYDROMETEOROLOGICAL PREDICTION CENTER

CAMP SPRINGS, MD


STORM SUMMARY MESSAGE



STORM SUMMARY NUMBER 02 FOR MISSISSIPPI AND OHIO RIVER VALLEYS
HEAVY RAIN EVENT
NWS HYDROMETEOROLOGICAL PREDICTION CENTER CAMP SPRINGS MD 
1000 PM CDT SUN MAY 01 2011
 
...ANOTHER ROUND OF HEAVY RAIN IS AFFECTING PORTIONS OF THE
MISSISSIPPI AND OHIO RIVER VALLEYS...WORSENING ALREADY SIGNIFICANT
FLOODING IN THE REGION...
 
FLOOD AND FLASH FLOOD WATCHES AND WARNINGS ARE IN EFFECT FOR MANY
AREAS FROM NORTHEAST TEXAS NORTH AND EASTWARD...ENCOMPASSING MUCH
OF THE CENTRAL AND LOWER MISSISSIPPI AND OHIO RIVER VALLEYS.
 
FOR A DETAILED GRAPHICAL DEPICTION OF THE LATEST
WATCHES...WARNINGS AND ADVISORIES...PLEASE SEE WWW.WEATHER.GOV

AT 900 PM CDT...A SURFACE LOW WITH A CENTRAL PRESSURE OF 995
MB...29.38 INCHES...WAS CENTERED NEAR THE SOUTHERN END OF HUDSON
BAY...MOVING NORTHEASTWARD. A FRONTAL BOUNDARY EXTENDED SOUTH FROM
THIS LOW THROUGH THE GREAT LAKES AND INTO THE CENTRAL AND LOWER
MISSISSIPPI RIVER VALLEY. ANOTHER SURFACE LOW WITH A CENTRAL
PRESSURE OF 1008 MB...29.77 INCHES...HAD DEVELOPED ALONG THE
FRONTAL BOUNDARY OVER EXTREME NORTHWESTERN LOUISIANA. NATIONAL
WEATHER SERVICE RADARS AND SURFACE OBSERVATIONS INDICATED A LARGE
AREA OF SHOWERS AND THUNDERSTORMS ACROSS MUCH OF THE SOUTHERN
PLAINS...CENTRAL AND SOUTHERN MISSISSIPPI RIVER VALLEY...AND OHIO
RIVER VALLEY. MODERATE TO HEAVY RAIN WAS OCCURRING IN MANY
LOCATIONS.                            

...SELECTED STORM TOTAL RAINFALL IN INCHES FROM 700 PM CDT SAT APR
30 THROUGH 900 PM CDT SUN MAY 01...

...ARKANSAS...
MORGAN                                8.70                     
MAYFLOWER 2.4 ESE                     7.50                     
AUSTIN 2.5 SSE                        6.71                     
CABOT 2 NE                            6.71                     
LITTLE ROCK 3 W                       6.45                     
SHERWOOD 1.8 NNW                      5.92                     
HOT SPRINGS VILLAGE 1.2 E             5.79                     
HOT SPRINGS/MEMORIAL FIELD            4.76                     
LITTLE ROCK AFB                       4.73                     
NORTH LITTLE ROCK 1.6 NNE             4.47                     
MOUNT IDA                             4.42                     
STUTTGART MUNI ARPT                   4.28                     
BLYTHEVILLE AIRPORT                   3.64                     
JONESBORO MUNI ARPT                   3.29                     
CORNING 2.1 W                         2.58                     

...KENTUCKY...
PADUCAH/BARKLEY                       2.11                     

...MISSOURI...
POPLAR BLUFF MUNI ARPT                2.56                     
CAPE GIRARDEAU MUNI ARPT              2.40                     

...TENNESSEE...
JACKSON/MCKELLAR                      2.54                     
DYERSBURG MUNI ARPT                   2.12                     


THE FRONTAL BOUNDARY ACROSS THE OHIO AND MISSISSIPPI RIVER VALLEY
WILL MOVE SLOWLY EASTWARD...BRINGING SHOWERS AND THUNDERSTORMS TO
MUCH OF THE EASTERN U.S. THROUGH MIDWEEK. THE SOUTHERN PORTION OF
THE BOUNDARY...ACROSS THE MID AND DEEP SOUTH...WILL REMAIN NEARLY
STATIONARY. THEREFORE...THE POTENTIAL FOR HEAVY RAIN ACROSS
ALREADY SATURATED AREAS OF THE MISSISSIPPI AND OHIO RIVER VALLEYS
WILL CONTINUE THROUGH TUESDAY. ADDITIONAL RAINFALL AMOUNTS OF 2 TO
4 INCHES...WITH LOCALLY HIGHER AMOUNTS...CAN BE EXPECTED ACROSS
PORTIONS OF THE MISSISSIPPI AND OHIO RIVER VALLEYS THROUGH TUESDAY
EVENING. MANY STREAMS AND RIVERS ACROSS THE REGION ARE ALREADY
EXPERIENCING MAJOR FLOODING...AND RECORD FLOODING IS FORECAST TO
OCCUR AT SOME LOCATIONS. PLEASE REFER TO PRODUCTS FROM NATIONAL
WEATHER SERVICE LOCAL WEATHER FORECAST OFFICES FOR SPECIFIC
DETAILS ON FLOODING IN YOUR AREA.            

THE NEXT STORM SUMMARY WILL BE ISSUED BY THE HYDROMETEOROLOGICAL
PREDICTION CENTER AT 400 AM CDT. PLEASE REFER TO YOUR LOCAL
NATIONAL WEATHER SERVICE OFFICE FOR ADDITIONAL INFORMATION ON THIS
EVENT.

RYAN




Last Updated: 1040 PM EDT SUN MAY 01 2011