STORM SUMMARY NUMBER 3 FOR CENTRAL U.S. HEAVY RAIN EVENT
NWS HYDROMETEOROLOGICAL PREDICTION CENTER CAMP SPRINGS MD
1100 PM EDT SAT APR 23 2011
 
...A SIGNIFICANT HEAVY RAINFALL EVENT IS SETTING UP OVER THE
MIDDLE MISSISSIPPI AND OHIO RIVER VALLEYS AND IS EXPECTED TO
PERSIST THROUGH THE MIDDLE OF THE WEEK...
 
FLOOD AND FLASH FLOOD WATCHES AND WARNINGS ARE CURRENTLY IN EFFECT
IN A LINE EXTENDING FROM NORTHEASTERN OKLAHOMA INTO THE CENTRAL
APPALACHIANS. FLOOD WARNINGS ARE ALSO IN EFFECT ALONG MOST OF THE
MISSISSIPPI RIVER.
 
FOR A DETAILED GRAPHICAL DEPICTION OF THE LATEST
WATCHES...WARNINGS AND ADVISORIES...PLEASE SEE WWW.WEATHER.GOV

AT 1000 PM EDT...A 995 MB...29.39 INCH...LOW PRESSURE CENTER WAS
LOCATED OVER NORTHERN QUEBEC...WITH A TRAILING COLD/STATIONARY
FRONT EXTENDING INTO THE OHIO VALLEY AND THROUGH OKLAHOMA...WHERE
IT CONNECTS WITH A SERIES OF SURFACE LOWS OVER NEW MEXICO. 
NATIONAL WEATHER SERVICE RADARS AND SURFACE OBSERVATIONS SHOWED
AREAS OF THUNDERSTORMS AND MODERATE TO LOCALLY HEAVY RAIN OVER A
NARROW AREA EXTENDING FROM NORTHEAST ARKANSAS THROUGH SOUTHERN
INDIANA.  THIS ACTIVITY WAS MOVING TO THE EAST-NORTHEAST. FURTHER
SOUTH AND WEST...A CLUSTER OF THUNDERSTORMS HAD DEVELOPED OVER
NORTH CENTRAL TEXAS AND EXTREME SOUTHERN OKLAHOMA. THE
SOUTHERNMOST STORM WAS BACKBUILDING...LEADING TO A SMALL BUT
NEARLY STATIONARY AREA OF VERY HEAVY RAINFALL OVER NORTH CENTRAL
TEXAS.

...SELECTED STORM TOTAL RAINFALL IN INCHES FROM 700 AM EDT FRI APR
22 THROUGH 1000 PM EDT SAT APR 23...

...ARKANSAS...
ROGERS 2 SSW                          5.07                     
BELLA VISTA 2 E                       4.43                     
DECATUR 3 ESE                         4.14                     
BENTONVILLE                           3.15                     
FAYETTEVILLE/SPRINGDALE               2.61                     
ROGERS/CARTER FIELD                   2.53                     
HARRISON/BOONE CO. ARPT               2.13                     
SILOAM SPRINGS/SMITH FIELD            1.91                     

...ILLINOIS...
ROBINSON 2 W                          3.05                     
CHESTER 2 SSE                         2.90                     
CARBONDALE 1 WSW                      2.45                     
OLD SHAWNEETOWN                       2.18                     
CARMI MUNI ARPT                       1.76                     
LAWRENCEVILLE-VICENNES INTL AP        1.53                     
BLOOMINGTON/NORMAL                    1.49                     
QUINCY MUNI ARPT                      1.41                     
SCOTT AFB/BELLEVILLE                  1.33                     

...INDIANA...
PALMYRA 4 ESE                         3.21                     
ELLISTON                              2.77                     
JASPER 6 ESE                          2.73                     
HUNTINGBURG                           2.69                     
CHARLESTOWN 3 N                       2.54                     
EVANSVILLE RGNL ARPT                  2.48                     
BLOOMINGTON/MONROE CO. ARPT           1.95                     

...KENTUCKY...
FRANKFORT/CAPITAL CITY ARPT           3.36                     
HENDERSON CITY                        2.97                     
LOUISVILLE/STANDIFO                   2.90                     
LAWRENCEBURG 4 N                      2.66                     
ELIZABETHTOWN 2 SE                    2.42                     
FORT KNOX AAF                         2.33                     
LEXINGTON/BLUE GRASS FIELD            2.02                     
OWENSBORO/DAVIESS CO. APT             1.96                     
PADUCAH/BARKLEY                       1.78                     

...MISSOURI...
WINONA 3 SW                           5.33                     
ELLSINORE 5 WNW                       3.49                     
EMERALD BEACH 3 S                     3.46                     
WEST PLAINS MUNI ARPT                 3.15                     
CAPE GIRARDEAU MUNI ARPT              2.89                     
POPLAR BLUFF MUNI ARPT                2.45                     
ST LOUIS/LAMBERT INTL ARPT            1.33                     
KANSAS CITY INTL ARPT                 1.13                     

...OHIO...
CLEVES 3 NNW                          2.83                     
KUGLER MILL 2 S                       2.47                     
SHARONVILLE 1 SE                      2.32                     
MOUNT AIRY 2 SW                       2.24                     
CINCINNATI 9 NW                       2.19                     
ASHTABULA CO. ARPT                    1.67                     
HAMILTON ARPT                         1.37                     
TOLEDO                                1.33                     

...OKLAHOMA...
COOKIETOWN 6 WNW                      5.03                     
WESTVILLE                             2.29                     
BUNCH 1 N                             2.08                     

...WEST VIRGINIA...
HUNTINGTON/TRI-STATE ARPT             1.97                     
PARKERSBURG/WILSON                    1.37                     


THE FRONTAL BOUNDARY SITUATED OVER THE OHIO VALLEY AND INTO THE
SOUTHERN PLAINS WILL REMAIN QUASI-STATIONARY THROUGH AT LEAST
MONDAY. WARM AND HUMID AIR FROM THE GULF OF MEXICO WILL BE SURGING
NORTHWARD...AND COLDER CANADIAN AIR WILL BE MOVING
SOUTHWARD...FOCUSING SIGNIFICANT CONVERGENCE ALONG THE BOUNDARY.
THIS IS EXPECTED TO RESULT IN PERIODS OF MODERATE TO HEAVY
RAIN...ALONG WITH THUNDERSTORMS...WITH RAINFALL AMOUNTS RANGING
FROM 2 TO 10 INCHES THROUGH WEDNESDAY. THE HIGHEST TOTALS ARE
LIKELY TO BE OVER THE MIDDLE MISSISSIPPI VALLEY AND THE LOWER OHIO
RIVER VALLEY. GIVEN THE ALREADY SATURATED GROUNDS AND HIGH RIVER
LEVELS...EXPECT FLOODING ISSUES IN THESE AREAS OVER AT LEAST THE
NEXT SEVERAL DAYS. IN ADDITION...SEVERE WEATHER...INCLUDING
HAIL...HIGH WINDS AND TORNADOES...WILL BE POSSIBLE WITHIN THE
STRONGEST STORMS.

THE NEXT STORM SUMMARY WILL BE ISSUED BY THE HYDROMETEOROLOGICAL
PREDICTION CENTER AT 500 AM EDT. PLEASE REFER TO YOUR LOCAL
NATIONAL WEATHER SERVICE OFFICE FOR ADDITIONAL INFORMATION ON THIS
EVENT.

SOLTOW