Non severe hail fell in parts of northwest Illinois during the evening of April 6.
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 DVN wrote it up.
Non severe hail fell in parts of northwest Illinois during the evening of April 6.
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 Quad Cities, IA wrote its last area forecast discussion before the first event at Apr 6, 6:02 PM CST, 2 hours earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE QUAD CITIES IA IL 702 PM CDT SAT APR 6 2013 .SYNOPSIS... ISSUED AT 234 PM CDT SAT APR 6 2013 THE 2 PM SURFACE ANALYSIS SHOWS A MOISTURE STARVED FRONT TO PASS ACROSS OVER THE AREA THE NEXT 6 HOURS WITH MOST SOLUTIONS TOO MOIST IN THE LOWEST LEVELS. NOWCAST TOOLS DO SUPPORT ELEVATED SHOWERS TO DEVELOP ALONG AND JUST AHEAD OF THE BOUNDARY LATE PM INTO EARLY EVENING WITH POSSIBLY AN ISOLATED STORM. ANY AMOUNTS TO BE SPOTTY AND GENERALLY LESS THAN A TENTH OF AN INCH. UPSTREAM ENERGY WITH OPEN GULF WITH DEEP TROUGH TO DIG INTO THE SOUTHWESTERN UNITED STATES. THIS IS A FAVORED PATTERN LATE SUNDAY INTO MIDDLE OF NEXT WEEK FOR LAKE MICHIGAN ENHANCED COLD FRONT WITH WIDESPREAD OVER RUNNING PRODUCING MODERATE TO HEAVY RAIN TOTALS THAT HAVE POTENTIAL TO CAUSE WATER ISSUES IF RAIN AMOUNTS ARE GREATER THAN 2 INCHES. && .SHORT TERM...(THIS EVENING THROUGH SUNDAY) ISSUED AT 234 PM CDT SAT APR 6 2013 TONIGHT...FRONT SHOULD SLIDE SOUTHEAST OF AREA BY 10 PM WITH A BAND OF SHOWERS AND ISOLATED STORM ALONG AND AHEAD OF SYSTEM. SKIES SHOULD CLEAR WITH DECREASING NW WINDS TO ALLOW FOR COOLER TEMPERATURES BY DAWN OF MIDDLE 30S NW TO LOWER 40S SOUTHEAST. SUNDAY...MOSTLY SUNNY WITH INCREASING CLOUDS LATE AND LIGHT NW WINDS. HIGHS UPPER 50S FAR NORTH TO 60S SOUTH TO MAKE FOR SEASONABLE AND COMFORTABLE APRIL DAY. SHOWERS MAY DEVELOP LATE PM WITH ISOLATED STORMS FAR SW SECTIONS AHEAD OF SHORT WAVE THAT WILL INTERACT WITH THE STALLED FRONT IN NORTHERN MISSOURI. POPS SLIGHT CHANCE TO LOWER CHANCE FOR LATER SHIFTS TO REASSESS. SHEAR PROFILES ARE SUPPORTIVE OF TRAINING PRECIPITATION THAT WILL NEED A CLOSER LOOK WITH PW/S WELL ABOVE AN INCH THAT COULD PRODUCE DECENT RAINFALL TOTALS. .LONG TERM...(SUNDAY NIGHT THROUGH SATURDAY) ISSUED AT 234 PM CDT SAT APR 6 2013 SUNDAY NIGHT AND MONDAY...SO BEGINS THE UNSETTLED WEATHER PERIOD AND SWITCH TO A WET REGIME. LATEST 12Z RUN MODELS IN GENERAL AGREEMENT OF UPPER LEVEL WAVE CURRENTLY ACRS THE WESTERN GRT BSN WILL LOOK TO PROPAGATE UP TOWARD THE REGION IN BROAD WEST-SOUTHWESTERLY STEERING FLOW ACRS MUCH OF THE MID CONUS SUNDAY NIGHT. LLVL WARM FRONTOGENESIS ACRS NORTHERN MO WILL LOOK TO RETREAT NORTH THIS PERIOD...WHILE INCREASING SOUTH TO SOUTHWESTERLY LLVL FLOW/LLJ WILL PUMP UP MOISTURE WITH PW/S INCREASING TO 0.80 TO AROUND AN INCH BY LATE SUNDAY NIGHT ACRS THE REGION. THUS IT APPEARS AN ALMOST COOL SEASON TYPE ELEVATED SYSTEM/MCS WILL LOOK TO TAKE SHAPE AS NOCTURNAL PROCESSES DEVELOP AND MOVE ACRS MUCH IF NOT ALL THE CWA LATER SUNDAY NIGHT INTO MON MORNING. PLUME OF 100-400+ J/KG MID LAYER MUCAPES WILL SWEEP UP ACRS MUCH OF THE AREA ON NOSE OF 30-40 KT SOUTHWESTERLY LLJ ALLOWING FOR SOME EMBEDDED THUNDER. AMOUNT OF FORCING AND PW/S IN THE COLUMN SUGGEST 0.40 TO 0.80 OF AN INCH POSSIBLE BY 12Z MON IN MUCH OF THE DVN CWA...WITH SOME LOCALLY HIGHER AMOUNTS POSSIBLE. MILD LOWS IN THE 50S SOUTH OF I80. WAVE EXITS ON MON FOR SOME BREAK IN THE ACTION...SFC FRONT/MAIN BOUNDARY SAGS BACK TO THE IA/MO BORDER AS SOUTHWEST CONUS UPPER TROF RELOADS WITH DIGGING PACIFIC NORTHWEST WAVE ENERGY. PREFER THE CONSISTENT FURTHER SOUTH BIAS WITH QUASI-STATIONARY BOUNDARY/FOCUS POINT OF THE ECMWF AND WILL GENERALLY FOLLOW THIS MODEL FOR MOST OF THE EXTENDED. MON NGHT...STRENGTH OF ADVERTISED SFC RIDGE/1035+ MB CENTER OVER EASTERN MT/ FROM THE NORTHWEST HIGH PLAINS INTO THE WESTERN GRT LKS TO HAVE AN IMPACT ON THE BOUNDARY. AS NOCTURNAL PROCESSES BEGIN MON NIGHT AND DEVELOPING SOUTHERLY FLOW UP OFF THE WESTERN GULF INCREASES... CONVERGENT OVERRUNNING PRECIP EVENT TO COMMENCE AS NORTHEASTERLY BOUNDARY LAYER FETCH GETS SQUEEZED DOWN ACRS THE NORTH HALF OF IA INTO NORTHERN IL. ANOTHER PERIOD OF A POTENTIAL ELEVATED MCS TYPE PRECIP BAND MOVING OFF EASTERN KS/NE BORDER SPAWNING GROUNDS AND UP ACRS MUCH OF THE CWA THROUGH TUE MORNING...ANOTHER HALF INCH TO AN INCH POSSIBLE OVER PORTIONS OF THE AREA BY TUE AM. BACK TO MONDAY... HIGH TEMPS TRICKY/AND WILL BE THROUGH AT LEAST THU/ WITH BIG BUST POTENTIAL FROM NORTH TO SOUTH DEPENDING ON LINGERING PRECIP AND BOUNDARY PLACEMENT. TUESDAY AND WEDNESDAY...TAKING INTO ACCOUNT LATEST ENSEMBLES/MEDIUM RANGE MODEL RUNS AN AGAIN WITH A BIAS/LEAN TOWARD THE CONSISTENT ECMWF...WET REGIME TO CONTINUE. AFTER MON NIGHT/TUE AM PRECIP EXITS...LARGE CHUNK OF SOUTHWEST CONUS UPPER TROF WILL LOOK TO EJECT OUT IN INCREASING SOUTH-WESTERLIES ACRS THE MID CONUS WITH AID FROM VIGOROUS UPPER JET ROUNDING THE BEND OF THE TROF. A STRONGER SFC LOW DEVELOPMENT FROM THE SOUTHEAST PLAINS INTO NORTHERN MO LATE TUE INTO WED WITH SIGNS OF DEEP LIFT AND OPTIMUM WARM MOIST CONVEYOR UP OFF THE WESTERN GULF COULD PRODUCE A HEAVY RAIN EVENT WITH YET ANOTHER ELEVATED MCS TYPE OCCURRENCE/OR HYBRID STRATIFORM WITH SOME EMBEDDED CONVECTION SYSTEM LATE TUE NIGHT INTO WED. WITH SOME UNCERTAINTY TO FURTHER DEFINE PERIOD AT THIS POINT...WILL KEEP BLANKET HIGHER POPS GOING WITH MORE THUNDER OCCURRENCE/MENTION IN THE SOUTH. THURSDAY THROUGH SATURDAY...BULK OF UPPER TROF SLATED TO PUSH EASTWARD ON THU AND BECOME COLD CORE. INVERTED TROF TYPE SIGNATURE OFF MON INTO SOUTH CENTRAL IL LLVL CYCLONE LATER WED NIGH INTO THU TO COMBINE WITH SPRING TROWAL FEATURE TO KEEP ROUNDS OF RAIN GOING LOCALLY WED NIGHT INTO THU. ADD ALL THIS UP...POTENTIAL FOR WIDESPREAD 1-3 INCHES OF RAINFALL BY MIDDAY THU ACRS THE ENTIRE CWA...WITH LOCALLY HIGHER AMOUNTS OVER 4 INCHES POSSIBLE. THIS TO LIKELY HAVE A HYDRO IMPACT WITH MANY RIVERS ON THE RISE AND THE TOP LAYER OF SOIL BECOMING SUPER SATURATED. IF PRECIP LINGERS LONG ENOUGH IN COLD CORE UPPER TROF AXIS...MAY EVEN BE A CHANCE FOR WET SNOW OR RAIN/SNOW MIX IN PORTIONS OF THE AREA THU NIGHT INTO EARLY FRI. WHEN SYSTEM FINALLY EXITS...DRY COOL RIDGING TO FOLLOW FOR EITHER FRI OR SAT. ..12.. && .AVIATION...(FOR THE 00Z TAFS THROUGH 00Z SUNDAY EVENING) ISSUED AT 655 PM CDT SAT APR 6 2013 UPPER LEVEL TROUGH IS PROGGED TO EXIT THE AREA IN THE NEXT FEW HOURS AND SHOULD TAKE THE PRECIP WITH IT. A FEW VERY SMALL CELLS HAVE PRODUCED LIGHTNING IN THE CID AREA...BUT THIS SHOULD BE SHORT LIVED. PASSAGE OF THE COLD FRONT THIS EVENING WILL SHIFT WINDS TO THE NORTHWEST. MAIN CONCERN AFTER THIS IS THE AREA OF LOW CLOUDS / MVFR CEILINGS TO THE NORTHWEST IN NORTH CENTRAL IOWA AND MINNESOTA. MODEL FORECASTS AND SATELLITE EXTRAPOLATION SUGGEST THESE WILL REACH THE CID AND DBQ TERMINALS AT LEAST...AND PERHAPS MLI...BUT PROBABLY NOT BRL. THE CLOUDS SHOULD MIX OUT BY MID MORNING WITH DRY AIR ALOFT. THE NEXT SYSTEM WILL BEGIN PUSHING MID AND HIGH CLOUDS INTO THE AREA LATE TOMORROW AFTERNOON. WOLF && .DVN WATCHES/WARNINGS/ADVISORIES... IA...NONE. IL...NONE. MO...NONE. && SYNOPSIS...NICHOLS SHORT TERM...NICHOLS LONG TERM...12 AVIATION...WOLF
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE QUAD CITIES IA IL 450 AM CDT SAT APR 6 2013 IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007- 009-015>018-024>026-034-035-MOZ009-010-071000- BUCHANAN-DELAWARE-DUBUQUE-BENTON-LINN-JONES-JACKSON-IOWA-JOHNSON- CEDAR-CLINTON-MUSCATINE-SCOTT-KEOKUK-WASHINGTON-LOUISA-JEFFERSON- HENRY IA-DES MOINES-VAN BUREN-LEE-JO DAVIESS-STEPHENSON-CARROLL- WHITESIDE-ROCK ISLAND-HENRY IL-BUREAU-PUTNAM-MERCER-HENDERSON- WARREN-HANCOCK-MCDONOUGH-SCOTLAND-CLARK- 450 AM CDT SAT APR 6 2013 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH CENTRAL ILLINOIS...NORTHWEST ILLINOIS...WEST CENTRAL ILLINOIS...EAST CENTRAL IOWA...NORTHEAST IOWA...SOUTHEAST IOWA AND NORTHEAST MISSOURI. .DAY ONE...TODAY AND TONIGHT WARM TEMPERATURES...STRONG GUSTY WINDS TO 40 MPH...AND DRIED VEGETATION WILL RESULT IN A VERY HIGH TO EXTREME THREAT OF GRASS FIRES. THIS WILL BE ESPECIALLY FROM LATE THIS MORNING THROUGH THE AFTERNOON AND INTO EARLY THIS EVENING. A COLD FRONT IS EXPECTED TO TRIGGER A FEW NON-SEVERE FAST MOVING THUNDERSTORMS THIS AFTERNOON INTO THIS EVENING. THE MAIN RISK FROM THESE STORMS WILL BE LIGHTNING. LOW PRESSURE TRACKING ACROSS THE UPPER MIDWEST WILL PRODUCE STRONG AND GUSTY SOUTHWEST WINDS TODAY. WIND GUSTS WILL BE 35 TO 40 MPH AND MAY BRIEFLY BE SOMEWHAT HIGHER. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY SUNDAY NIGHT AND EARLY MONDAY ANOTHER ROUND OF SHOWERS AND EMBEDDED THUNDERSTORMS WILL MOVE ACROSS THE AREA. NO SEVERE STORMS ARE EXPECTED...THOUGH LOCALLY HEAVY RAINFALL IS POSSIBLE. A SPRING STORM SYSTEM WILL MOVE ACROSS THE MIDWEST ON TUESDAY AND WEDNESDAY. THIS SYSTEM WILL BRING SOME CHANCES FOR THUNDERSTORMS... MAINLY TUESDAY...TUESDAY NIGHT AND WEDNESDAY. IT IS TOO SOON TO DETERMINE THE POTENTIAL FOR SEVERE WEATHER. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY OR TONIGHT. HAASE/LE
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE QUAD CITIES IA IL 357 PM CDT SAT APR 6 2013 IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007- 009-015>018-024>026-034-035-MOZ009-010-062330- BUCHANAN-DELAWARE-DUBUQUE-BENTON-LINN-JONES-JACKSON-IOWA-JOHNSON- CEDAR-CLINTON-MUSCATINE-SCOTT-KEOKUK-WASHINGTON-LOUISA-JEFFERSON- HENRY IA-DES MOINES-VAN BUREN-LEE-JO DAVIESS-STEPHENSON-CARROLL- WHITESIDE-ROCK ISLAND-HENRY IL-BUREAU-PUTNAM-MERCER-HENDERSON- WARREN-HANCOCK-MCDONOUGH-SCOTLAND-CLARK- INCLUDING THE CITIES OF...INDEPENDENCE...MANCHESTER...DUBUQUE... VINTON...CEDAR RAPIDS...ANAMOSA...MAQUOKETA...MARENGO... IOWA CITY...TIPTON...CLINTON...MUSCATINE...BETTENDORF... DAVENPORT...SIGOURNEY...WASHINGTON...WAPELLO...FAIRFIELD... MOUNT PLEASANT...BURLINGTON...KEOSAUQUA....FORT MADISON... GALENA...FREEPORT...MOUNT CARROLL...STERLING...ROCK FALLS... MOLINE...ROCK ISLAND...KEWANEE...PRINCETON...HENNEPIN...ALEDO... OQUAWKA...MONMOUTH...CARTHAGE...MACOMB...MEMPHIS...KAHOKA 357 PM CDT SAT APR 6 2013 ...WINDY WITH A VERY HIGH FIRE DANGER THROUGH EARLY EVENING... THE COMBINATION OF MILD TEMPERATURES...DRY AIR...GUSTY WINDS OVER 35 MPH AND PLENTIFUL DRIED VEGETATION WILL CONTINUE TO PRODUCE A THREAT OF RAPIDLY SPREADING FIELD AND GRASS FIRES THROUGH 6 PM CDT THIS EVENING. AFTER 6 PM...THE WINDS WILL START TO DIMINISH AND SHOWERS INCREASE ACROSS THE AREA. AVOID BURNING OUTDOORS IF AT ALL POSSIBLE THROUGH THIS EVENING. IF YOU MUST BURN...MANAGE FIRES VERY CLOSELY AND DO NOT LEAVE FIRES UNATTENDED. WHEN FINISHED...ENSURE THE FIRE IS COMPLETELY OUT TO AVOID THE POSSIBILITY OF SMOLDERING EMBERS REIGNITING A BLAZE. UNTIL THE WINDS DECREASE...MAKE SURE LOOSE ITEMS LEFT OUTDOORS ARE SECURED. DRIVERS OF HIGH PROFILE VEHICLES WILL ALSO WANT TO TAKE PRECAUTIONS. 12
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE QUAD CITIES IA IL 754 PM CDT SAT APR 6 2013 IAZ067-068-078-ILZ015-024-070145- LOUISA-MERCER-MUSCATINE-ROCK ISLAND-SCOTT- 754 PM CDT SAT APR 6 2013 ...THUNDERSTORM WITH SMALL HAIL IN SOUTHEAST IOWA... AT 751 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM NEAR COLUMBUS JUNCTION...MOVING EAST AT 40 MPH. * THE THUNDERSTORM WILL BE NEAR... GRANDVIEW AND LETTS AROUND 800 PM CDT... FRUITLAND AROUND 810 PM CDT... ELIZA AND MANNON AROUND 820 PM CDT... MILLERSBURG AROUND 830 PM CDT... HAMLET AROUND 835 PM CDT... REYNOLDS AND TAYLOR RIDGE AROUND 840 PM CDT... ONE HALF INCH DIAMETER HAIL AND BRIEF HEAVY RAIN ARE EXPECTED WITH THIS STORM. IF YOU HEAR THUNDER...MOVE IMMEDIATELY TO A STURDY BUILDING OR CAR UNTIL THE STORM HAS PASSED. LAT...LON 4149 9044 4114 9044 4117 9142 4137 9138 TIME...MOT...LOC 0052Z 262DEG 35KT 4125 9132 WOLF
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
814 PM CDT SAT APR 06 2013
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0813 PM HAIL 4 NNE WAPELLO 41.22N 91.16W
04/06/2013 M0.50 INCH LOUISA IA TRAINED SPOTTER
MAINLY 1/4 WITH A FEW 1/2 INCH
&&
TOLSENPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
854 PM CDT SAT APR 06 2013
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0850 PM HAIL 4 S CLINTON 41.79N 90.22W
04/06/2013 M0.25 INCH WHITESIDE IL TRAINED SPOTTER
&&
TOLSENPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
855 PM CDT SAT APR 06 2013
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0844 PM HAIL ERIE 41.66N 90.08W
04/06/2013 M0.25 INCH WHITESIDE IL TRAINED SPOTTER
LASTED ONLY A FEW MINUTES. VIA ESPOTTER.
&&
TOLSENThe Quad Cities radar (KDVN), 42 km away, was scanning. The volume nearest the first event began at 02:00 UTC.
2 hail. Local standard time, as filed.
Penny sized hail fell for about 5 minutes around 902 pm CDT April 6. This was associated with the second storm of the day.
Dime to nickel sized hail fell in Galva, IL between 930 pm and 935 pm April 6.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Illinois in 2013Every state in 2013This day in weather historyWarnings in Illinois, April 2013
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: 441870, 441872.