STORM SUMMARY NUMBER 9 FOR CENTRAL U.S. HEAVY RAIN EVENT
NWS HYDROMETEOROLOGICAL PREDICTION CENTER CAMP SPRINGS MD
1000 AM CDT MON APR 25 2011
 
...SIGNIFICANT HEAVY RAINFALL EVENT OVER THE OHIO AND MIDDLE
MISSISSIPPI RIVER VALLEYS IS EXPECTED TO PERSIST THROUGH THE
MIDDLE OF THE WEEK...
 
FLOOD AND FLASH FLOOD WATCHES AND WARNINGS ARE CURRENTLY IN EFFECT
ACROSS A BROAD REGION EXTENDING FROM EASTERN OKLAHOMA THROUGH THE
SOUTHERN OHIO VALLEY.  RIVER FLOOD WARNINGS ARE ALSO IN EFFECT
ALONG MOST OF THE MISSISSIPPI AND OHIO RIVERS.
 
FOR A DETAILED GRAPHICAL DEPICTION OF THE LATEST
WATCHES...WARNINGS AND ADVISORIES...PLEASE SEE WWW.WEATHER.GOV

AT 900 AM CDT...A STATIONARY FRONT WAS DRAPED ACROSS THE CENTRAL
AND EASTERN UNITED STATES...STRETCHING FROM NORTHERN TEXAS
NORTHEASTWARD INTO EASTERN PENNSYLVANIA.  NATIONAL WEATHER SERVICE
RADARS AND SURFACE OBSERVATIONS INDICATED NUMEROUS SHOWERS...WITH
EMBEDDED THUNDERSTORMS...ALL ALONG THE BOUNDARY.  A LARGE AND MORE
ORGANIZED AREA OF CONVECTION...WITH REPORTS OF HEAVY RAIN AND
STRONG THUNDERSTORMS...WAS SLOWLY MOVING ACROSS ARKANSAS AND
SOUTHERN MISSOURI.  THERE WAS ALSO ANOTHER AREA OF WIDESPREAD
MODERATE RAIN OVER THE OHIO VALLEY.

...SELECTED STORM TOTAL RAINFALL IN INCHES FROM 700 AM CDT FRI APR
22 THROUGH 900 AM CDT MON APR 25...

...ARKANSAS...
SPRINGDALE 6 ENE                     14.48                     
BELLA VISTA 2 NNE                    11.27                     
EUREKA SPRINGS 4 NNW                 10.83                     
ROGERS 2 SSW                          9.88                     
BENTONVILLE                           7.33                     
FAYETTEVILLE/DRAKE FIELD              6.84                     
HARRISON/BOONE CO. ARPT               6.40                     
FAYETTEVILLE/SPRINGDALE               6.31                     
SILOAM SPRINGS/SMITH FIELD            5.54                     
ROGERS/CARTER FIELD                   5.02                     
MOUNTAIN HOME/BAXTER CO. ARPT         4.65                     
FLIPPIN/MARION CO. RGNL ARPT          4.59                     
FORT SMITH MUNI ARPT                  2.99                     

...ILLINOIS...
CARBONDALE 1 WSW                      7.06                     
BELKNAP 11 ESE                        5.51                     
CARBONDALE/MURPHYSBORO                5.03                     
SPARTA 2 SSW                          4.69                     
CARMI MUNI ARPT                       4.14                     
LAWRENCEVILLE-VINCENNES INTL AP       2.96                     
MOUNT VERNON/OUTLAND AIRPORT          2.74                     
MOUNT_CARMEL                          2.62                     
SCOTT AFB/BELLEVILLE                  2.04                     
SPRINGFIELD/CAPITAL ARPT              1.13                     

...INDIANA...
JASPER 6 ESE                          6.43                     
DARMSTADT 4 NNW                       5.56                     
FREDERICKSBURG 4 NNE                  5.44                     
PAOLI 6 S                             5.05                     
EVANSVILLE RGNL ARPT                  4.70                     
HUNTINGBURG                           4.47                     
BOONVILLE 2 N                         4.10                     
BLOOMINGTON/MONROE CO. ARPT           2.80                     
TERRE HAUTE/HULMAN RGNL ARPT          1.35                     
SHELBYVILLE MUNI ARPT                 1.02                     

...KANSAS...
COFFEYVILLE MUNI ARPT                 2.42                     
WICHITA/COL. JABARA                   1.02                     

...KENTUCKY...
PROSPECT 1 S                          7.84                     
PADUCAH/BARKLEY                       7.10                     
EMINENCE                              6.29                     
HENDERSON                             6.05                     
TAYLORSVILLE 6 NW                     6.03                     
HENDERSON CITY                        5.75                     
ELIZABATHTOWN 2 SE                    5.28                     
FRANKFORT/CAPITAL CITY ARPT           4.90                     
LOUISVILLE/STANDIFORD                 3.96                     
LEXINGTON/BLUE GRASS FIELD            3.17                     

...MARYLAND...
WALDORF                               0.48                     

...MISSOURI...
WINONA 3 SW                          10.33                     
PROTEM 3 NE                          10.32                     
HOLLISTER 4 SW                        9.95                     
GOLDEN 2 NE                           9.39                     
CAPE GIRARDEAU MUNI ARPT              8.12                     
POPLAR BLUFF MUNI ARPT                7.14                     
WEST PLAINS MUNI ARPT                 6.39                     
SPRINGFIELD MUNI ARPT                 3.14                     
ST LOUIS/LAMBERT INTL ARPT            1.68                     
SPIRIT OF ST LOUIS APT                1.44                     

...OHIO...
CLEVES 3 NNW                          4.70                     
ROSEMOUNT                             3.06                     
CINCINNATI/LUNKIN FIELD               2.00                     
HAMILTON ARPT                         1.97                     
CINCINNATI (ASOS)                     1.78                     
WILMINGTON/CINCINNATI WFO             1.72                     
DAYTON GENERAL AIRPORT                1.70                     
LANCASTER                             1.68                     
PORT COLUMBUS INTL AIRPORT            1.51                     
DAYTON/JAMES M COX AIRPORT            1.16                     

...OKLAHOMA...
WESTVILLE                            10.29                     
MUSKOGEE/DAVIS FIELD AIRPORT          6.83                     
VIAN 5 ENE                            6.54                     
TULSA/LLOYD JONES                     4.05                     
TULSA INTL ARPT                       3.30                     
MCALESTER REGIONAL ARPT               3.20                     
TINKER AFB/OKLAHOMA CITY              2.05                     
STILLWATER MUNI ARPT                  1.76                     
BARTLESVILLE MUNI ARPT                1.54                     
GUTHRIE MUNI ARPT                     1.48                     

...WEST VIRGINIA...
CLIFTON                               2.76                     
HUNTINGTON/TRI-STATE ARPT             2.36                     


THE SURFACE BOUNDARY SITUATED OVER THE OHIO VALLEY AND INTO THE
SOUTHERN PLAINS WILL REMAIN QUASI-STATIONARY THROUGH EARLY
TUESDAY.  WARM AND HUMID AIR FROM THE GULF OF MEXICO WILL BE
SURGING NORTHWARD...SUPPORTING THE CONTINUING DEVELOPMENT OF
MODERATE TO HEAVY RAINFALL ALONG THE BOUNDARY.  A SERIES OF
SURFACE WAVES ARE EXPECTED TO DEVELOP ALONG THE FRONT AND MOVE
NORTHEASTWARD ACROSS THE LOWER/MIDDLE MISSISSIPPI AND OHIO VALLEYS
ON TUESDAY AND WEDNESDAY.  THIS WILL ENHANCE PRECIPITATION ALONG
THE FRONT AND ALSO LEAD TO AN OUTBREAK OF SEVERE THUNDERSTORMS. 
BY THURSDAY MORNING...ADDITIONAL RAINFALL TOTALS OF 2 TO 6 INCHES
ARE EXPECTED ACROSS MUCH OF THE LOWER/MIDDLE
MISSISSIPPI...OHIO...AND TENNESSEE RIVER VALLEYS.  HIGHER
AMOUNTS...APPROACHING 8 INCHES...ARE LIKELY OVER EASTERN ARKANSAS
AND WESTERN TENNESSEE.  GIVEN THE ALREADY SATURATED GROUND AND
SWOLLEN RIVERS...SERIOUS FLOODING ISSUES ARE INCREASINGLY BECOMING
A CONCERN.

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

HAMRICK