STORM SUMMARY NUMBER 2 FOR CENTRAL U.S. HEAVY RAIN EVENT
NWS HYDROMETEOROLOGICAL PREDICTION CENTER CAMP SPRINGS MD
500 PM EDT SAT APR 23 2011
 
...PERIODS OF HEAVY RAINFALL SETTING UP OVER THE MIDDLE
MISSISSIPPI RIVER VALLEY INTO THE OHIO VALLEY THIS WEEKEND AND
INTO EARLY NEXT WEEK...
 
FLOOD AND FLASH FLOOD WATCHES AND WARNINGS ARE CURRENTLY IN EFFECT
IN A LINE EXTENDING FROM SOUTHWESTERN MISSOURI AND NORTHWESTERN
ARKANSAS 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 400 PM EDT...A 995 MB...29.39 INCH...LOW PRESSURE CENTER WAS
LOCATED OVER NORTHERN EASTERN ONTARIO...WITH A TRAILING
COLD/STATIONARY FRONT EXTENDING INTO THE OHIO VALLEY AND THROUGH
OKLAHOMA...WHERE IT CONNECTS TO A 1004 MB...29.65 INCH SURFACE LOW
OVER NORTH CENTRAL TEXAS.  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 CENTRAL OHIO.  THIS ACTIVITY WAS MOVING TO THE
EAST-NORTHEAST. FURTHER SOUTH AND WEST...SCATTERED SHOWERS WERE
BEGINNING TO DEVELOP OVER EASTERN OKLAHOMA...SOUTHWESTERN
MISSOURI...AND NORTHWESTERN ARKANSAS.

...SELECTED STORM TOTAL RAINFALL IN INCHES FROM 700 AM EDT FRI APR
22 THROUGH 400 PM EDT SAT APR 23...

...ARKANSAS...
ROGERS 2 SSW                          5.07                     
BELLA VISTA 2 E                       4.43                     
DECATUR 3 ESE                         4.14                     
BENTONVILLE                           2.77                     
FAYETTEVILLE/SPRINGDALE               2.22                     
ROGERS/CARTER FIELD                   2.16                     
HARRISON/BOONE CO. ARPT               1.97                     
SILOAM SPRINGS/SMITH FIELD            1.53                     

...ILLINOIS...
ROBINSON 2 W                          3.05                     
CHESTER 2 SSE                         2.90                     
CARBONDALE 1 WSW                      2.45                     
OLD SHAWNEETOWN                       2.18                     
CARMI MUNI ARPT                       1.61                     
BLOOMINGTON/NORMAL                    1.49                     
QUINCY MUNI ARPT                      1.41                     
LAWRENCEVILLE-VICENNES INTL AP        1.40                     

...INDIANA...
PALMYRA 4 ESE                         3.21                     
ELLISTON                              2.77                     
JASPER 6 ESE                          2.73                     
CHARLESTOWN 3 N                       2.54                     
EVANSVILLE RGNL ARPT                  2.24                     
HUNTINGBURG                           2.06                     
BLOOMINGTON/MONROE CO. ARPT           1.90                     

...KENTUCKY...
HENDERSON CITY                        2.68                     
LAWRENCEBURG                          2.66                     
ELIZABETHTOWN 2 SE                    2.42                     
LOUISVILLE/STANDIFO                   2.06                     
FRANKFORT/CAPITAL CITY ARPT           1.87                     
LEXINGTON/BLUE GRASS FIELD            1.71                     
FORT KNOX AAF                         1.56                     
OWENSBORO/DAVIESS CO. APT             1.56                     

...MICHIGAN...
SSE SHELBY TOWNSHIP                   1.03                     

...MISSOURI...
WINONA 3 SW                           5.33                     
ELLSINORE                             3.49                     
EMERALD BEACH 3 S                     3.46                     
WEST PLAINS MUNI ARPT                 2.53                     
POPLAR BLUFF MUNI ARPT                1.53                     
SARCOXIE 1 W                          1.48                     
ST LOUIS/LAMBERT INTL ARPT            1.33                     
CAPE GIRARDEAU MUNI ARPT              1.28                     

...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                     
TOLEDO                                1.33                     

...OKLAHOMA...
WESTVILLE                             2.27                     
BUNCH 1 N                             2.08                     


THE FRONTAL BOUNDARY SITUATED OVER THE OHIO VALLEY AND INTO THE
SOUTHERN PLAINS WILL REMAIN QUASI-STATIONARY THROUGH AT LEAST
SUNDAY EVENING. WARM AND HUMID AIR FROM THE GULF OF MEXICO WILL BE
SURGING NORTHWARD...AND COLDER CANADIAN AIR WILL BE MOVING
SOUTHWARD...FOCUSING SIGNIFICANT MOISTURE 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 BY WEDNESDAY MORNING. THE HIGHEST
TOTALS ARE EXPECTED NEAR SOUTHEASTERN MISSOURI...SOUTHERN
ILLINOIS...AND SOUTHWESTERN INDIANA. GIVEN THE ALREADY SATURATED
GROUNDS AND HIGH RIVER LEVELS...EXPECT FLOODING ISSUES TO
MATERIALIZE.

THE NEXT STORM SUMMARY WILL BE ISSUED BY THE HYDROMETEOROLOGICAL
PREDICTION CENTER AT 1100 PM EDT. PLEASE REFER TO YOUR LOCAL
NATIONAL WEATHER SERVICE OFFICE FOR ADDITIONAL INFORMATION ON THIS
EVENT.

SOLTOW