Another round of heavy rains on already-saturated ground caused renewed river flooding over south central Indiana.
Every event with a place to put it. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS LMK wrote it up.
Another round of heavy rains on already-saturated ground caused renewed river flooding over south central Indiana.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Louisville, KY wrote its last area forecast discussion before the first event at Apr 19, 10:45 AM EST, 15 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE LOUISVILLE KY 1145 AM EDT TUE APR 19 2011 .SHORT TERM UPDATE (THIS AFTERNOON AND TONIGHT)... CONVECTION OVER NRN PART OF S-CENTRAL IND HAS MOVED TO THE NE OUT OF FORECAST AREA. KLVX DOPPLER RADAR SHOWING MAIN CELLS NOW OVER CENTRAL IND N OF WARM FRONT. RADAR ALSO SHOWS SOME LIGHT SHOWERS/ SPRINKLES WHICH APPEAR TO BE ASSOCIATED WITH LOW-LEVEL MOISTURE TRAPPED UNDER DEVELOPING CAPPING INVERSION ALOFT S OF WARM FRONT. THEREFORE...DO NOT EXPECT THESE TO DEVELOP TOO MUCH MORE OVER NEXT COUPLE OF HOURS. FOR THIS AFTERNOON...MAIN QUESTION IS IF ANY TSTMS WILL DEVELOP WITHIN WARM SECTOR S OF WARM FRONT (NOT ASSOCIATED WITH EXPECTED SVR WEATHER TONIGHT). CURRENTLY...EXTENSIVE CLOUDS EXIST S OF BOUNDARY WHICH LATEST MODEL SOUNDINGS SUGGEST WILL SLOWLY ERODE BUT IT WILL TAKE A LITTLE TIME. THIS WILL INHIBIT HEATING FOR AWHILE BUT GOOD WARMING WILL COMMENCE BY MID AFTERNOON. THUS HAVE NOT CHANGED MAX TEMPS MUCH ESPECIALLY OVER SRN HALF OF FORECAST AREA. HAVE LOWERED TEMPS A LITTLE OVER NRN SECTIONS. SLOWER WARMING AND CAPPING INVERSION SHOULD PRECLUDE CHANCE OF TSTMS OVER MUCH OF CENTRAL KY THIS AFTERNOON. NEVERTHELESS...LOW AND MID-LEVEL LAPSE RATES STEEPEN THIS AFTERNOON AND EARLY EVENING...AND WITH HEATING LATER TODAY... CANT RULE OUT RENEGADE STORMS ROUGHLY ALONG AND N OF INTERSTATE 65 FORCED BY ANY RESIDUAL MESOSCALE/CONVECTIVE BOUNDARIES. OTHER FACTOR THIS AFTERNOON WILL BE GRADIENT WINDS. AREA OBS ALREADY SHOW WIND GUSTS OVER 30 KTS AT A FEW SITES. AS GRADUAL CLEARING OCCURS AND TEMPS WARM...WINDS A COUPLE THOUSAND FEET OFF GROUND (UP TO 40 KTS) SHOULD BE ABLE TO EFFECTIVELY MIX DOWN WHICH COULD PRODUCE WIND GUSTS TO 40 MPH. THIS IS MOST LIKELY TO OCCUR OVER CENTRAL AND SRN PARTS OF CENTRAL KY...INCLUDING LEX AND BWG...BUT NOT SDF/LOU AT THIS TIME WHERE CLOUDS MAY HOLD LONGER. NO MAJOR CHANGES TO FORECAST TONIGHT AT THIS TIME. TIMING STILL LOOKS SIMILAR...LATE THIS EVENING IN OUR FAR NWRN COUNTIES THEN ROUGHLY 03-09Z FOR REST OF FORECAST AREA. ...MESOSCALE UPDATE... CONVECTION CONTINUES TO TRAIN FROM W TO E OVER THE EXTREME NRN PORTION OF OUR SRN IND ALONG THE WARM FRONT OVER SRN IND THIS MORNING. CELLS CONTINUE TO MOVE ACROSS THE NRN HALF OF JEFFERSON COUNTY INDIANA WHERE A FLASH FLOOD WARNING REMAINS IN EFFECT. SEVERAL INCHES OF RAIN MAY HAVE FALLEN IN THIS AREA SINCE EARLY THIS MORNING. OTHERWISE SCATTERED SHOWERS WILL CONTINUE OVER PARTS OF S-CENTRAL IND THIS MORNING ALONG THE FRONT. THIS BOUNDARY IS QUITE SIGNIFICANT SEPARATING WARM MOIST AIR TO ITS SOUTH FROM MUCH COOLER AIR JUST TO THE NORTH. THIS FRONT WILL EVENTUALLY LIFT NORTH THIS AFTERNOON BUT MAY TAKE A LITTLE LONGER THAN PREVIOUSLY EXPECTED GIVEN THE WIDESPREAD CLOUD COVER AND SCT PRECIP ALONG AND NORTH OF THE FRONT. UPDATED THE FORECAST FOR THIS MORNING FOR TRENDS IN PRECIP OVER SRN IND AND CLOUD COVER OVER ENTIRE FORECAST AREA. THESE CLOUDS WILL KEEP TEMPS FROM RISING TOO MUCH FOR AWHILE...BUT EVENTUALLY CLOUDS SHOULD MIX OUT WITHIN THE WARM SECTOR TO ALLOW TEMPS TO RISE MORE QUICKLY LATER TODAY. WILL EVALUATE TEMPS MORE SO LATER THIS MORNING. ALSO WILL NEED TO ASSESS POSSIBILITY OF A RESIDUAL LOW-LEVEL BOUNDARY OVER NRN FORECAST AREA FOR ANY SCT CELL REDEVELOPMENT THIS AFTERNOON EVEN AFTER WARM FRONT LIFTS NORTH. .SHORT TERM (TODAY AND TONIGHT)... ...SEVERE WEATHER EPISODE EXPECTED LATE THIS EVENING AND OVERNIGHT WITH DAMAGING WINDS...LARGE HAIL...SCATTERED TORNADOES AND PLENTY OF HEAVY RAINFALL... 06Z SFC ANALYSIS REVEALED AN AREA OF LOW PRESSURE OVER NW OKLAHOMA THIS MORNING WITH A QUASI-STATIONARY FRONTAL BOUNDARY EXTENDING FROM THE LOW NORTHEASTWARD INTO THE LOWER-MID OHIO VALLEY. THE BOUNDARY WAS LOCATED NORTH OF THE OHIO RIVER AND SLOWLY MAKING PROGRESS TO THE NORTH. NOCTURNAL LOW-LEVEL JET AXIS IS IMPINGING ON THE AREA FROM THE SOUTHWEST WHICH IS PROVIDING GOOD MOISTURE TRANSPORT INTO THE REGION WHICH IS HELPING MAINTAIN THE LARGE AREA OF CONVECTION JUST TO OUR NORTH. LATEST HIGH RESOLUTION MODELS SHOW THIS AREA OF CONVECTION CONTINUING TO PULL OFF TO THE NORTHEAST THIS MORNING AS THE BOUNDARY MOVES NORTHEASTWARD AND AWAY FROM THE REGION. SOUTH OF THE BOUNDARY...A FEW SCATTERED THUNDERSTORMS HAVE CONTINUED TO MOVE NORTHEASTWARD ACROSS CENTRAL AND EAST-CENTRAL KY. THESE STORMS WILL CONTINUE TO MOVE ACROSS BLUEGRASS REGION OVER THE NEXT FEW HOURS. TEMPERATURES REMAIN QUITE MILD EARLY THIS MORNING WITH MOST LOCATIONS STILL IN THE MID-UPPER 60S WITH SOME UPPER 60S TO LOWER 70S STILL NOTED ACROSS FAR SOUTHERN KY. FOR TODAY...SFC FRONTAL BOUNDARY IS EXPECTED TO MOVE SLOWLY NORTHWARD AND AWAY FROM THE AREA. SKIES ARE EXPECTED TO CLEAR OUT A BIT WITH PARTLY TO MOSTLY SUNNY SKIES EXPECTED THROUGH MUCH OF THE DAY. UNDER A STIFF SOUTHWESTERLY WIND FLOW...TEMPERATURES ARE EXPECTED TO WARM INTO THE LOWER 80S ACROSS THE REGION. THE STRONG SOUTHWESTERLY FLOW WILL CONTINUE TO PUMP RICH/MOIST GULF AIR INTO THE REGION WITH SURFACE DEWPOINTS EXPECTED TO RISE INTO THE MID-UPPER 60S DURING THE AFTERNOON HOURS. WOULD NOT SURPRISE ME TO SEE SOME 70 DEWPOINTS AS CLOSE AS FAR SW KY/NW TN. AS TEMPERATURES WARM AND MOISTURE CONTINUES TO INCREASE...WE WILL SEE THE ATMOSPHERE BECOME CONDITIONALLY UNSTABLE DURING THE LATE AFTERNOON HOURS. STEEP LAPSE RATES ALOFT...MAINLY ABOVE 700HPA WILL RESULT IN LIFTED INDICES DROPPING TO BELOW -5 DEGREES C IN MOST PLACES. CAPE VALUES WILL LIKELY SURGE INTO THE 2000-2500 J/KG RANGE. HOWEVER...ALL MODELS POINT TO A LAYER OF WARM AIR ALOFT BETWEEN 700-800HPA WHICH WILL EFFECTIVE CAP THE ATMOSPHERE FOR THE AFTERNOON AND EARLY EVENING HOURS. GIVEN THE ANTICIPATED CAPPING INVERSION...PRETTY MUCH ALL OF THE REGION WILL LIKELY BE DEVOID OF ANY CONVECTION DURING THE AFTERNOON...THUS PLAN ON KEEPING SMALL CHC POPS IN FOR THIS MORNING WITH THE LINGERING ACTIVITY AND THEN REDUCING POPS FOR THE AFTERNOON. AS MENTIONED...WINDS WILL BE GUSTY THIS AFTERNOON WITH SUSTAINED WINDS OF 15-20MPH AND GUSTS UP TO 30 MPH. AT THIS TIME...DO NOT FEEL THAT WE WILL REACH WIND ADVISORY CRITERIA...BUT IT WILL BE SOMETHING TO WATCH AS THE DAY UNFOLDS. BY LATE THIS AFTERNOON...CAPPING INVERSION IS EXPECTED TO MIX OUT WELL TO OUR WEST. AS THIS OCCURS...VIGOROUS CONVECTIVE DEVELOPMENT IS EXPECTED ACROSS WESTERN MO LATE THIS AFTERNOON. LONG CURVED HODOGRAPHS SUGGEST THAT INITIAL CONVECTIVE MODE WILL BE SUPERCELLULAR. THESE STORMS SHOULD QUICKLY MOVE EASTWARD ACROSS MO AND INTO FAR WESTERN KY AND ILLINOIS THIS EVENING. AS THEY HEAD EAST...THEY WILL LIKELY CONGEAL INTO A QUASI-LINEAR CONVECTIVE SYSTEM AND THEN SURGE EASTWARD INTO SOUTHERN INDIANA AND CENTRAL KENTUCKY LATE THIS EVENING AND OVERNIGHT. THIS QLCS SHOULD BE REMAIN WELL MAINTAINED AS PLENTY OF INSTABILITY AND MOISTURE WILL BE IN PLACE ACROSS OUR REGION. CURRENT THINKING IS THAT THE PRIME TIME FOR OUR SEVERE WEATHER EPISODE WILL BE BETWEEN 10 PM AND 600 AM EDT. GIVEN THE STRONG WIND FIELDS A LARGE DAMAGING WIND EVENT SEEMS VERY LIKELY. IN ADDITION...LARGE HAIL AND SQUALL LINE EMBEDDED TORNADOES ARE LIKELY. AS PREVIOUS FORECASTER MENTIONED...THE OVERALL SETUP STILL LOOKS A LOT LIKE 4/28/2002 WHICH RESULT IN QUITE A BIT OF WIND DAMAGE ACROSS THE REGION ALONG WITH A FEW TORNADOES. ACTIVITY WILL LIKELY APPROACH THE I-75 CORRIDOR TOWARD THE END OF THE SHORT TERM FORECAST PERIOD AND BE ON A GRADUAL DOWNTURN AS INSTABILITY WILL DECREASE AS ONE HEADS EASTWARD INTO EASTERN KENTUCKY. TEMPERATURES WILL REMAIN MILD TONIGHT WITH LOWS FALLING INTO THE LOWER-MID 60S. AS IF THE SEVERE WEATHER WAS NOT ENOUGH...HEAVY RAINFALL WILL BE A PROBLEM AS WELL AS THIS SYSTEM MOVES THROUGH THE REGION. A GOOD ONE TO AS MUCH AS TWO INCHES OF RAINFALL IS EXPECTED AS THIS SYSTEM MOVES THROUGH THE REGION. OVERALL...FLASH FLOOD GUIDANCE VALUES REMAIN QUITE HIGH AND MOST OF OUR RIVERS HAVE GONE BACK INTO THEIR BANKS. ISOLATED FLASH FLOODING IS POSSIBLE...BUT GIVEN THE OVERALL STORM TRACK...FEEL THAT THE MOST SUSCEPTIBLE AREA FOR FLOODING WILL BE ACROSS SOUTHERN INDIANA. THE ONE TO TWO INCH RAINFALL WILL LIKELY RESULT IN QUICK RISES ON AREA STREAMS AGAIN. SO THOSE LIVING NEAR CREEKS/STREAMS OR IN FLOOD PRONE AREAS...SHOULD KEEP AN EYE ON WATER LEVELS OVER THE NEXT 24 HOURS. .LONG TERM (WEDNESDAY - MONDAY)... REMNANTS OF CONVECTION ASSOCIATED WITH OVERNIGHT SEVERE WEATHER WILL MOVE RAPIDLY EAST OF THE CWA DURING THE MORNING HOURS WEDNESDAY. AFTER 36 HOURS OF RELATIVELY BENIGN WEATHER SOUTH OF AN EAST-WEST ORIENTED STATIONARY FRONT BISECTING INDIANA...FOCUS THEN SHIFTS TO NEXT SYSTEM PROGGED TO MOVE IN BY FRIDAY MORNING AS A SERIES OF SHORT WAVES MOVE THROUGH A RELATIVELY ZONAL UPPER LEVEL FLOW. OF GREATEST CONCERN IN THIS TIME FRAME IS THE OPPORTUNITY FOR SIGNIFICANT RAINFALL AMOUNTS ALONG THE OHIO RIVER VALLEY. IN RESPONSE TO THE SHORT WAVES IN THE UPPER FLOW...A SERIES OF SURFACE LOWS WILL DEVELOP OVER THE SOUTHERN PLAINS AND MOVE NORTHEAST ALONG A BAROCLINIC ZONE ORIENTED PARALLEL TO THE OHIO VALLEY. AMPLE MOISTURE RIDING NORTH IN THE WARM SECTOR OF THIS NEARLY STATIONARY FEATURE HAS RESULTED IN HPC GUIDANCE OF A 5-DAY BULLSEYE OF 7 INCHES IN SW INDIANA. WHILE THE EXACT LOCATION OF THE MAX RAINFALL IS HARD TO DETERMINE THIS FAR OUT...SUFFICE IT TO SAY THAT ANOTHER ROUND OF FLOODING PROBLEMS WILL LIKELY EXIST FOR THE OHIO AND ITS TRIBUTARIES LATER BY THE WEEKEND IF THIS VERIFIES. WITH THE STALLED FRONT TO OUR NORTH DURING MOST OF THE EXTENDED TIME FRAME...TEMPERATURES THROUGHOUT THE EXTENDED PERIOD WILL BE AT OR ABOVE CLIMATOLOGICAL AVERAGES FOR THIS TIME OF YEAR. THE ONLY EXCEPTION WILL BE THURSDAY AS SURFACE HIGH PRESSURE DOMINATES IN BETWEEN WEDNESDAYS SEVERE WEATHER AND BEFORE THE WARM ADVECTION KICKS IN PRIOR TO THE PRECIP MOVING IN FRIDAY. BECAUSE OF THE ABUNDANT CLOUD COVER AND RAINFALL WITH THE WET WEEKEND THOUGH...READINGS SHOULD ONLY TOP OUT IN THE 70S...BUT WILL BE SULTRY AS GULF MOISTURE RIDES UP ALONG THE MISSISSIPPI RIVER INTO THE OHIO VALLEY. AFTER THURSDAY MORNING LOWS IN THE 40S...THE 50S AND 60S WILL BE MORE COMMON FOR MIN TEMPERATURES THE REMAINDER OF THE PERIOD. && .AVIATION (12Z TAF ISSUANCE)... 10Z SFC ANALYSIS REVEALS THAT THE QUASI-STATIONARY FRONTAL BOUNDARY LIES JUST NORTH OF THE OHIO RIVER. CURRENTLY SEEING ABOUT A 20 DEGREE DIFFERENCE IN TEMPERATURE ON EITHER SIDE OF THE FRONT. STRONG NOCTURNAL LOW-LEVEL JET AXIS COMING IN FROM THE SOUTHWEST CONTINUES TO STEADILY MOISTEN THE ATMOSPHERE. MID-LEVEL WAVE MOVING THROUGH THE REGION CONTINUES TO HELP FIRE CONVECTION MAINLY ALONG AND NORTH OF THE OHIO RIVER. WE EXPECT THIS ACTIVITY TO CONTINUE FOR THE NEXT COUPLE OF HOURS BUT OVERALL...CONVECTION SHOULD BEGIN TO DECREASE IN COVERAGE BY 19/14Z. FOR NOW WILL KEEP VCTS IN AT KSDF AND LLWS IN THE TAFS AT ALL SITES THROUGH 19/14Z. AS THE QUASI-STATIONARY FRONT MOVES NORTHWARD TODAY...SHOULD SEE IMPROVING SKY CONDITIONS ACROSS THE REGION. WITH STRONG CAPPING IN PLACE...PARTLY TO MOSTLY SUNNY SKIES ARE EXPECTED WITH VFR CONDITIONS. GUSTY SOUTHWESTERLY WINDS WILL BE ONGOING WITH SUSTAINED WINDS OF 12-16KTS AND GUSTS UP TO 26-27KTS AT TIMES THIS AFTERNOON. STRONG SFC COLD FRONT WILL SWING IN FROM THE WEST LATE TONIGHT WITH A LINE OF SEVERE THUNDERSTORMS MOVING INTO THE REGION PROBABLY AFTER 20/03Z FOR KSDF/KBWG...AND AFTER 20/04Z FOR KLEX. WILL TRY AND FINE TUNE THE CONVECTION THROUGHOUT THE DAY AS THE STORM SYSTEM EVOLVES. && .LMK WATCHES/WARNINGS/ADVISORIES... KY...NONE. IN...NONE. && UPDATE............TWF MESOSCALE UPDATE..TWF SHORT TERM........MJ LONG TERM.........JBS AVIATION..........MJ
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE LOUISVILLE KY 513 AM EDT TUE APR 19 2011 INZ076>079-083-084-089>092-KYZ023>043-045>049-053>057-061>067- 070>078-081-082-200915- ORANGE IN-WASHINGTON IN-SCOTT IN-JEFFERSON IN-DUBOIS IN- CRAWFORD IN-PERRY IN-HARRISON IN-FLOYD IN-CLARK IN-HANCOCK KY- BRECKINRIDGE KY-MEADE KY-OHIO KY-GRAYSON KY-HARDIN KY-BULLITT KY- JEFFERSON KY-OLDHAM KY-TRIMBLE KY-HENRY KY-SHELBY KY-FRANKLIN KY- SCOTT KY-HARRISON KY-SPENCER KY-ANDERSON KY-WOODFORD KY- FAYETTE KY-BOURBON KY-NICHOLAS KY-NELSON KY-WASHINGTON KY- MERCER KY-JESSAMINE KY-CLARK KY-LARUE KY-MARION KY-BOYLE KY- GARRARD KY-MADISON KY-BUTLER KY-EDMONSON KY-HART KY-GREEN KY- TAYLOR KY-CASEY KY-LINCOLN KY-LOGAN KY-WARREN KY-SIMPSON KY- ALLEN KY-BARREN KY-MONROE KY-METCALFE KY-ADAIR KY-RUSSELL KY- CUMBERLAND KY-CLINTON KY- 513 AM EDT TUE APR 19 2011 /413 AM CDT TUE APR 19 2011/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTH CENTRAL INDIANA AND CENTRAL KENTUCKY. .DAY ONE...TODAY AND TONIGHT. SCATTERED SHOWERS AND THUNDERSTORMS WILL BE POSSIBLE ACROSS THE NORTHERN PORTION OF THE OUTLOOK AREA THIS MORNING AS A QUASI- STATIONARY FRONT MOVES SLOWLY NORTHWARD AND AWAY FROM THE REGION. A STRONG COLD FRONT WILL APPROACH THE REGION LATE TONIGHT AND TRANSVERSE THE OUTLOOK AREA EARLY WEDNESDAY MORNING. THUNDERSTORMS ARE EXPECTED TO MOVE INTO THE WESTERN PORTIONS OF THE OUTLOOK AREA AFTER 10 PM EDT TONIGHT. THESE STORMS WILL BE CAPABLE OF PRODUCING DESTRUCTIVE WINDS IN EXCESS OF 60 MPH...LARGE HAIL AND SCATTERED TORNADOES. IN ADDITION...HEAVY RAINFALL WITH RAINFALL TOTALS OF ONE TO THREE INCHES WILL BE LIKELY. THESE THUNDERSTORMS WILL MOVE EAST OF THE OUTLOOK AREA BY 600 AM EDT WEDNESDAY MORNING. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY. ONGOING THUNDERSTORMS EARLY WEDNESDAY MORNING EAST OF INTERSTATE 65 WILL RAPIDLY MOVE OFF TO THE EAST BY MIDDAY. STRONG WINDS...HEAVY RAIN AND DANGEROUS LIGHTNING WILL CONTINUE TO BE A THREAT WITH THESE STORMS ALONG THE I-75 CORRIDOR UNTIL THEY EXIT OUT OF THE AREA. SCATTERED STORMS WILL RETURN TO THE AREA THURSDAY NIGHT AND FRIDAY AHEAD OF THE NEXT SYSTEM...WHICH IS EXPECTED TO BRING ANOTHER ROUND OF STRONG TO SEVERE STORMS...MAINLY FROM FRIDAY NIGHT INTO SATURDAY. THE MAIN THREATS FROM THESE STORMS WILL BE LARGE HAIL...DAMAGING WINDS...AND ISOLATED TORNADOES. IN ADDITION TO THE SEVERE WEATHER THREAT...HEAVY RAINS FROM THE STORMS ARE EXPECTED TO CAUSE RISING WATER LEVELS ON AREA RIVERS AND MAY RESULT IN FLASH FLOODS AND AREAL FLOODING AS WELL. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL BE REQUIRED LATE TONIGHT FOR SEVERE WEATHER. SPOTTERS ALSO WILL BE NEEDED TO REPORT RAINFALL TOTALS AND FLOODING THROUGHOUT MUCH OF THE WORK WEEK. MJ/JBS
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LOUISVILLE KY
1032 AM EDT TUE APR 19 2011
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0825 AM FLASH FLOOD BRYANTSBURG 38.88N 85.37W
04/19/2011 JEFFERSON IN LAW ENFORCEMENT
A FEW ROADS WITH MINOR FLOODING IN NORTHERN JEFFERSON
COUNTY
&&
EVENT NUMBER LMK1100399
13The national radar mosaic for the moment the first event began.
2 flood. Local standard time, as filed.
The Muscatatuck River at Deputy crested around 25.7 feet around 645 PM EST on April 19. Flood stage at Deputy is 20 feet. Minor flooding occurs at this level.
The Ohio River at Cannelton crested at 49.3 feet around 2 AM EST on April 28. Flood stage at Cannelton is 42 feet. The river at Cannelton remained above flood stage into the month of May.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Indiana in 2011Every state in 2011This day in weather historyWarnings in Indiana, April 2011
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 294513, 294516.