Low pressure approaching the region helped to enhance thunderstorm development as they organized into a line during the afternoon. A couple of these storms along the northern portion of the line became severe.
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 ILN wrote it up.
Low pressure approaching the region helped to enhance thunderstorm development as they organized into a line during the afternoon. A couple of these storms along the northern portion of the line became severe. The main threat from these storms was damaging winds.
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 Wilmington, OH wrote its last area forecast discussion before the first event at May 10, 12:51 PM EST, 19 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE WILMINGTON OH 151 PM EDT FRI MAY 10 2013 .SYNOPSIS... AN AREA OF LOW PRESSURE WILL APPROACH THE REGION TODAY AND A COLD FRONT WILL MOVE THROUGH THE AREA TONIGHT. AN UPPER LEVEL DISTURBANCE WILL BRING ADDITIONAL PRECIPITATION TO THE AREA SATURDAY AFTERNOON INTO SATURDAY NIGHT. && .NEAR TERM /UNTIL 6 PM THIS EVENING/... UNSETTLED WEATHER TO CONTINUE TODAY IN MOIST SWRLY FLOW AHEAD OF MID LEVEL TROF. 50 KT 850 MB JET IS PROVIDING FOCUS FOR SHOWER AND THUNDERSTORM DEVELOPMENT THIS AFTN. FAVORABLE MOISTURE TRANSPORT WILL RESULT IN PW/S INCREASING TO 1.5 INCHES OR ABOUT 170 PERCENT OF NORMAL INTO SE OH AND NE KY. INSTBY IS LIMITED WITH BLYR CAPES AROUND 1000 J/KG AHD OF THIS MCS MOVING INTO ILNS FA. STORMS ARE LIMITED TO THE LEADING EDGE AND A FEW OF THE STRONGER UPDRAFTS ARE PRODUCING WIND GUSTS UP TO 45 MPH. BEST POTENTIAL FOR WIND GUSTS IS OVER S CNTRL OHIO WHERE DCAPE IS MOST FAVORABLE. AFTER THIS LEADING EDGE PUSHES THRU EARLY THIS AFTN ONLY EXPECT STEADY RAIN SHOWERS WITH SEVERE WEATHER THREAT DIMINISHING IN THE RAIN COOLED AIR. HAVE UPDATED HWO PRODUCT TO MENTION MARGINAL WIND POTENTIAL EARLY IN THE EAST AND NE AND THE DIMINISHED POTENTIAL FOR SEVERE WEATHER TODAY. && .SHORT TERM /6 PM THIS EVENING THROUGH MONDAY NIGHT/... A COLD FRONT WILL BEGIN TO WORK INTO THE FA THIS EVENING AND MOVE THROUGH THE AREA FRIDAY NIGHT. SHOWERS AND THUNDERSTORMS WILL DECREASE IN COVERAGE BY SATURDAY MORNING HOWEVER ADDITIONAL PRECIPITATION IS POSSIBLE SATURDAY AFTERNOON INTO SATURDAY EVENING AS AN UPPER LEVEL DISTURBANCE WORKS THROUGH THE AREA. SATURDAY...SUNDAY...AND MONDAY HIGH TEMPERATURES WILL BE WELL BELOW NORMAL FOR THIS TIME OF YEAR. LIGHT WINDS AND MOSTLY CLEAR SKIES WILL BE PRESENT ACROSS THE AREA SUNDAY NIGHT. THIS WILL ALLOW FOR DECENT RADIATIONAL COOLING AND ALLOW FOR TEMPERATURES TO FALL INTO THE 30S ACROSS THE FA. THIS WILL ALLOW FOR FROST TO DEVELOP ACROSS THE REGION. WILL CONTINUE TO HIGHLIGHT FROST POTENTIAL IN THE HWO AT THIS TIME. && .LONG TERM /TUESDAY THROUGH THURSDAY/... HIGH PUSHES EAST BY TUESDAY. THE TUESDAY WARM UP WILL CONTINUE INTO WEDNESDAY. MODELS INDICATING NEXT SYSTEM FOR LATE WEDNESDAY INTO THURSDAY. HAVE INTRODUCED SMALL POPS FOR WED AFTN FOR NOW ALTHOUGH PRECIP MAY HOLD OFF UNTIL WEDNESDAY NIGHT OR EVEN THURSDAY. WILL TAKE A QUICK LOOK AT 12Z EURO BEFORE PRESS TIME FOR MORE EVIDENCE OF WED AFTN POPS IF NEEDED. && .AVIATION /18Z FRIDAY THROUGH WEDNESDAY/... MCS HAS DEVELOPED IN MOIST FLOW AHD OF ADVANCING SFC COLD FRONT. INSTBY IS LIMITED SO ONLY THE LEADING EDGE OF THIS COMPLEX WAS PRODUCING LIGHTNING. ALONG WITH THIS LIGHTING THE POTENTIAL FOR WIND GUSTS UP TO 35 KTS WILL BE PSBL FOR NEXT HOUR OR TWO ACRS KDAY/KCMH AND KLCK. AFTER THIS CONVECTION MOVES THRU EXPECT STEADY RAIN SHOWERS WITH CIGS DROPPING INTO MVFR CAT THRU THE AFTN INTO THE EVENING. COLD FRONT PASSAGE TO OCCUR THIS EVENING AND RAIN EXPECTED TO COME TO AN END. IN CAA PATTERN EXPECT CIGS TO DROP DOWN INTO IFR CATEGORY TONIGHT AT ALL TAF SITES. IFR WILL LIFT INTO MVFR CAT THRU THE MORNING HOURS ON SATURDAY. THERE IS THE POTENTIAL FOR MVFR VSBYS IN FOG THIS EVENING BUT WITH WINDS OF 8 TO 10 KTS THIS IS PROBABILITY IS LIMITED. OUTLOOK...NO SIGNIFICANT WEATHER IS EXPECTED. && .ILN WATCHES/WARNINGS/ADVISORIES... OH...NONE. KY...NONE. IN...NONE. && SYNOPSIS...NOVAK NEAR TERM...AR SHORT TERM...NOVAK LONG TERM...PADGETT AVIATION...FRANKS/AR
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE WILMINGTON OH 110 PM EDT FRI MAY 10 2013 INZ050-058-059-066-073>075-080-KYZ089>099-OHZ026-034-035-042>044- 051>053-060>062-070>072-077>079-111715- WAYNE-FAYETTE IN-UNION IN-FRANKLIN IN-RIPLEY-DEARBORN-OHIO- SWITZERLAND-CARROLL-GALLATIN-BOONE-KENTON-CAMPBELL-OWEN-GRANT- PENDLETON-BRACKEN-ROBERTSON-MASON-HARDIN-MERCER-AUGLAIZE-DARKE- SHELBY-LOGAN-MIAMI-CHAMPAIGN-CLARK-PREBLE-MONTGOMERY-GREENE-BUTLER- WARREN-CLINTON-HAMILTON-CLERMONT-BROWN- 110 PM EDT FRI MAY 10 2013 THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL INDIANA...SOUTHEAST INDIANA...NORTHEAST KENTUCKY...NORTHERN KENTUCKY...MIAMI VALLEY OF OHIO...SOUTH CENTRAL OHIO...SOUTHWEST OHIO AND WEST CENTRAL OHIO. .DAY ONE...THIS AFTERNOON AND TONIGHT. HAZARDOUS WEATHER IS NOT EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY. THERE IS THE POTENTIAL FOR FROST ACROSS THE AREA SUNDAY NIGHT INTO MONDAY MORNING. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. KYZ100-OHZ045-046-054>056-063>065-073-074-080>082-088-111715- LEWIS-UNION OH-DELAWARE-MADISON-FRANKLIN OH-LICKING-FAYETTE OH- PICKAWAY-FAIRFIELD-ROSS-HOCKING-HIGHLAND-ADAMS-PIKE-SCIOTO- 110 PM EDT FRI MAY 10 2013 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST KENTUCKY...CENTRAL OHIO AND SOUTH CENTRAL OHIO. .DAY ONE...THIS AFTERNOON AND TONIGHT. THUNDERSTORMS WILL DEVELOP ACROSS THE AREA EARLY THIS AFTERNOON. A FEW OF THE STORMS COULD PRODUCE WIND GUSTS UP TO 40 MPH THROUGH 3 PM. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY. THERE IS THE POTENTIAL FOR FROST ACROSS THE AREA SUNDAY NIGHT INTO MONDAY MORNING. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
107 PM EDT FRI MAY 10 2013
OHZ053>056-062>065-072>074-080-082-101800-
CLARK OH-CLINTON OH-FAIRFIELD OH-FAYETTE OH-FRANKLIN OH-GREENE OH-
HOCKING OH-LICKING OH-MADISON OH-PICKAWAY OH-PIKE OH-ROSS OH-
HIGHLAND OH-
107 PM EDT FRI MAY 10 2013
...A LINE OF STRONG THUNDERSTORMS WILL AFFECT NORTHEASTERN
HIGHLAND...ROSS...PIKE...PICKAWAY...MADISON...SOUTHWESTERN LICKING...
HOCKING...GREENE...FRANKLIN...FAYETTE...FAIRFIELD...NORTHEASTERN
CLINTON AND SOUTHERN CLARK COUNTIES THROUGH 200 PM EDT...
AT 104 PM EDT...RADAR INDICATED STRONG THUNDERSTORMS ALONG A LINE
EXTENDING FROM GREENE COUNTY AIRPORT TO SABINA TO WAKEFIELD...MOVING
NORTHEAST AT 50 MPH.
WIND GUSTS TO 40 MPH ARE POSSIBLE WITH THESE STORMS.
IN ADDITION...HEAVY RAIN CAN BE EXPECTED WITH THESE STORMS.
SOME LOCATIONS THAT MAY BE AFFECTED INCLUDE...BAINBRIDGE...
GREENFIELD...WILBERFORCE...JAMESTOWN...YELLOW SPRINGS...PIKETON...
CEDARVILLE...WASHINGTON COURT HOUSE...WAVERLY...JEFFERSONVILLE...
BLOOMINGBURG AND NEW HOLLAND.
ALSO...IDAHO...WAKEFIELD...STAUNTON...JASPER MILLS...ROCK MILLS...
SOUTH SALEM...BUCHANAN AND ROSEMOOR ARE NEAR THE PATH OF THIS LINE OF
STRONG THUNDERSTORMS.
WATER WILL POND ON ROADS AND MAY QUICKLY FILL ROADSIDE DITCHES AND
SMALL STREAMS.
RESIDENTS IN THESE AREAS SHOULD REMAIN ALERT. IF THESE STORMS BECOME
STRONGER...THEN A WARNING MAY BE NEEDED.
LAT...LON 3947 8227 3938 8229 3936 8274 3895 8280
3896 8317 3943 8363 3971 8411 3975 8410
4011 8289 3981 8239 3975 8240 3974 8236
3960 8237 3956 8216 3947 8216SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
125 PM EDT FRI MAY 10 2013
OHZ042-043-051>053-060-061-101815-
CHAMPAIGN OH-CLARK OH-DARKE OH-MIAMI OH-MONTGOMERY OH-PREBLE OH-
SHELBY OH-
125 PM EDT FRI MAY 10 2013
...A LINE OF STRONG THUNDERSTORMS WILL AFFECT SOUTHERN SHELBY...
NORTHEASTERN PREBLE...NORTHERN MONTGOMERY...MIAMI...SOUTHEASTERN
DARKE...NORTHERN CLARK AND WESTERN CHAMPAIGN COUNTIES THROUGH 215 PM
EDT...
AT 122 PM EDT...RADAR INDICATED STRONG THUNDERSTORMS ALONG A LINE
EXTENDING FROM WEST MANCHESTER TO WEST MILTON TO MEDWAY...MOVING
NORTHEAST AT 45 MPH.
WIND GUSTS TO 45 MPH ARE POSSIBLE WITH THESE STORMS.
IN ADDITION...HEAVY RAIN CAN BE EXPECTED WITH THESE STORMS.
SOME LOCATIONS THAT MAY BE AFFECTED INCLUDE...TIPP CITY...ENON...NEW
CARLISLE...ARCANUM...TROY...SPRINGFIELD...PLEASANT HILL...BRADFORD...
ST. PARIS...COVINGTON...PIQUA AND VERSAILLES.
ALSO...GREEN MEADOWS...ITHACA...POTSDAM...BROWN...DONNELSVILLE...
SNYDERVILLE...LUDLOW FALLS AND GRAYSON ARE NEAR THE PATH OF THIS LINE
OF STRONG THUNDERSTORMS.
WATER WILL POND ON ROADS AND MAY QUICKLY FILL ROADSIDE DITCHES AND
SMALL STREAMS.
LAT...LON 4026 8451 4026 8388 3993 8365 3985 8399
3988 8430 3985 8465
SNYDERSPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
154 PM EDT FRI MAY 10 2013
OHZ045-046-054>056-064-065-073-074-082-101900-
DELAWARE OH-FAIRFIELD OH-FRANKLIN OH-HOCKING OH-LICKING OH-MADISON OH-
PICKAWAY OH-PIKE OH-ROSS OH-UNION OH-
154 PM EDT FRI MAY 10 2013
...A LINE OF STRONG THUNDERSTORMS WILL AFFECT SOUTHEASTERN UNION...
EASTERN ROSS...EASTERN PIKE...PICKAWAY...NORTHEASTERN MADISON...
WESTERN LICKING...HOCKING...FRANKLIN...FAIRFIELD AND SOUTHERN
DELAWARE COUNTIES THROUGH 300 PM EDT...
AT 152 PM EDT...RADAR INDICATED STRONG THUNDERSTORMS ALONG A LINE
EXTENDING FROM RESACA TO PICKAWAY COUNTY AIRPORT TO BEAVER...MOVING
NORTHEAST AT 35 MPH.
WIND GUSTS TO 50 MPH AND PEA SIZE HAIL ARE POSSIBLE WITH THESE
STORMS.
IN ADDITION...FREQUENT CLOUD TO GROUND LIGHTNING AND HEAVY RAIN CAN
BE EXPECTED WITH THESE STORMS.
SOME LOCATIONS THAT MAY BE AFFECTED INCLUDE...WEST JEFFERSON...
CIRCLEVILLE...LAKE DARBY...SOUTH BLOOMFIELD...ASHVILLE...GROVE
CITY...PLAIN CITY...HILLIARD...UPPER ARLINGTON...DOWNTOWN COLUMBUS...
DUBLIN AND GROVEPORT.
ALSO...GEORGESVILLE...DARBYDALE...LINN...MOORESVILLE...CHUCKERY...
RICHMOND DALE...COMMERCIAL POINT AND HALLSVILLE ARE NEAR THE PATH OF
THIS LINE OF STRONG THUNDERSTORMS.
DO NOT STAY IN THE OPEN NOR SEEK SHELTER UNDER TREES WHEN LIGHTNING
THREATENS. MOVE INDOORS WHEN THUNDERSTORMS APPROACH. WATER WILL POND
ON ROADS AND MAY QUICKLY FILL ROADSIDE DITCHES AND SMALL STREAMS.
LAT...LON 3947 8216 3956 8216 3960 8237 3974 8236
3983 8239 3984 8247 3993 8246 3991 8228
4027 8260 4028 8274 4036 8276 4013 8350
4012 8350 4005 8352 3950 8302 3896 8293
3895 8280 3936 8274 3938 8230 3947 8227The Cincinnati radar (KILN), 98 km away, was scanning. The volume nearest the first event began at 18:09 UTC.
5 thunderstorm wind. Local standard time, as filed.
A tree was downed near Olentangy Commons due to thunderstorm winds.
A tree was downed in Hilliard due to thunderstorm winds.
Trees were reported down near Orange Road and Bale-Kenyon Road due to thunderstorm winds.
Trees and power lines were reported down in the area due to thunderstorm winds.
A tree was downed near the intersection of Chestnut Hills Road and Marion Road due to thunderstorm winds.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Ohio in 2013Every state in 2013This day in weather historyWarnings in Ohio, May 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: 451906, 451907, 451908, 451909, 451910.