EF0 tornado, Ashboro, Indiana, June 4, 2007

1. EF065 to 85 mphthis tornado

   Light damage. Surface peeled off some roofs, gutters and siding damaged, branches broken, shallow-rooted trees pushed over.

2. EF186 to 110 mph

   Moderate damage. Roofs badly stripped, mobile homes overturned or badly damaged, exterior doors lost, windows broken.

3. EF2111 to 135 mph

   Considerable damage. Roofs torn off well-built houses, frame homes shifted on their foundations, mobile homes destroyed, large trees snapped or uprooted, cars lifted off the ground.

4. EF3136 to 165 mph

   Severe damage. Whole stories of well-built houses destroyed, large buildings badly damaged, trains overturned, trees debarked, heavy cars lifted and thrown.

5. EF4166 to 200 mph

   Devastating damage. Well-built houses leveled, structures with weak foundations moved some distance, cars thrown and large missiles generated.

6. EF5over 200 mph

   Incredible damage. Strong frame houses swept off their foundations, car-sized missiles thrown more than 100 meters, steel-reinforced concrete badly damaged, high-rise buildings deformed.

7. Unrated

   The survey recorded a tornado but could not put a number on it, most often because it crossed open country and damaged nothing a rating can be read from.

Rating

EF0

Date

June 4, 2007

Touchdown

6:30 PM EDT (22:30 UTC)

Lifted

6:40 PM EDT (22:40 UTC)

On the ground

10 minutes

Path length

2.5 miles (4.0 km)

Path width

200 yards (183 m)

Deaths

0

Injuries

0

Property damage

$50,000

County

Clay County

Touchdown point

39.400, -87.100

Lift-off point

39.400, -87.100

Record number

0706041630-01

A tornado touched down in Clay County on the evening of June 4th 2007. This storm was rated an EF0. Minor damage to homes and tree damage was reported due to this tornado.

An EF0 tornado touched down near the town of Ashboro in Clay County at approximately 630 PM EDT on the evening of June 4, 2007. The tornado tracked towards the southeast, and produced several areas of minor to moderate tree damage. Some of the damage to structures included three homes sustaining minor damage, a carport lifted off of the ground and damaged, a mini barn moved off of its blocks, and trees blown down onto a trampoline and a truck.

From NOAA NCEI's Storm Events Database, the narrative the local forecast office wrote for Storm Data.

No tornado warning for this county appears in the archive as in force at the moment the tornado touched down.

Every warning and watch covering the touchdown point that day, from the Iowa Environmental Mesonet's archive of National Weather Service products. Lead time is measured from the issue of the warning in force to the touchdown time in the database, both of which were recorded to the minute by different people.

The Storm Prediction Center had this point in a General Thunderstorms Risk. The outlook in force was issued at 20:12 UTC.

SPC's Day 1 convective outlook as it stood when the tornado began, read at the touchdown point. The same archive is on the radar archive.

NWS Indianapolis, IN wrote its last area forecast discussion before the tornado touched down at Jun 4, 2:23 PM EDT, 4 hours 7 minutes earlier.

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
223 PM EDT MON JUN 4 2007

.DISCUSSION...

FORECAST FOCUS IS ON CHANCES FOR RAIN THRU THE WEEK.

AT 18Z AN UPPER LOW WAS SPINNING ACROSS LOWER MI WITH AN UPPER TROF
EXTENDING SOUTH ACROSS INDIANA. NUMEROUS SHRA AND ISOLATED TSRA WERE
ACROSS THE FORECAST AREA /FA/ DUE TO INSTABILITY FROM COLD AIR ALOFT.

MODELS IN DECENT AGREEMENT AND WILL USE A BLEND.

UPPER LOW AND TROF WILL WORK EAST THIS AFTERNOON AND EVENING. EXPECT
SCT SHRA/ISOLD TSRA TO CONTINUE INTO THE EVENING...BUT THEY WILL
GRADUALLY BE ENDING DUE TO LOSS OF HEATING AND EXIT OF UPPER LOW.
THUS PLAN TO GO DRY AFTER MIDNIGHT. CLOUDS WILL BREAK UP SOME AS AIR
STABILIZES. THIS WILL ALLOW TEMPS TO FALL TO NEAR GUIDANCE VALUES IN
THE LOWER TO MIDDLE 50S.

ON TUESDAY ANOTHER WEAK IMPULSE WILL DIVE SE. BEST COMBINATION OF
FORCING AND MOISTURE SHOULD REMAIN SOUTH OF THE FA. DRIEST AIR IN
THE LOW LEVELS WILL BE IN THE NERN FA. THUS FEEL THE BEST CHANCES
FOR ANY RAIN WILL BE ACROSS SWRN FA. WILL GO CHANCE POPS THERE AND
SLIGHT CHANCE ELSEWHERE. EVEN WITH SOME SUN MAV LOOKS A BIT WARM.
WENT A LITTLE COLDER AND CLOSER TO MET NUMBERS MOST AREAS.

IMPULSE WILL EXIT THE AREA LATE TUE AFTN. THUS FEEL FA SHOULD BE
DRY...ALTHOUGH FAR SERN FA WILL BE CLOSE TO THE CUT OFF FOR CHANCES
OF RAIN. WILL CONTINUE DRY FORECAST TUE NIGHT.

WARM FRONT WILL MOVE NE TOWARD FA ON WED AND MOVE ACROSS FA WED
NIGHT. LACK OF MOISTURE SHOULD KEEP FA DRY AS THE FRONT PASSES.
AGAIN WILL CONTINUE DRY FORECAST.

THURSDAY WILL BE DRY AND QUITE WARM AS STRONG WARM ADVECTION OCCURS
OVER THE FA. 850 WINDS WILL BE AT 50KT SO GUSTY WINDS LOOK TO BE A
GOOD BET.

COLD FRONT WILL ARRIVE THU NIGHT AND THEN STALL ACROSS THE AREA INTO
EARLY NEXT WEEK. CANNOT PIN DOWN WHERE FRONT WILL STALL THAT FAR
OUT...SO CHANCE POPS THRU THE PERIOD LOOK BEST.

&&

.AVIATION...DISCUSSION FOR 18Z TAFS
VERY MOIST AND UNSTABLE AIR WILL BE OVER INDIANA THIS AFTERNOON AND
EVENING. A COLD FRONT IN NW INDIANA WILL MOVE TO AROUND THE OHIO
RIVER BY 12Z. CONDITIONS THIS AFTERNOON WILL BE GENERALLY VFR.
OCCASIONAL MVFR CONDITIONS MAY OCCUR IN THE SCATTERED THUNDERSTORMS.
THE THUNDERSTORMS ARE DIRUNAL SO THEY WILL DISSIPATE BY 03Z. WINDS
WILL GUST TO AROUND 25 KTS THIS AFTERNOON THEN DECREASE TO AROUND 10
KTS AFT 02Z. AFTER 03Z VFR CONDITIONS WILL OCCUR. HIGH PRESSURE WILL
BUILD INTO INDIANA AFTER 12Z THIS WILL KEEP CONDITIONS VFR.

&&

.IND WATCHES/WARNINGS/ADVISORIES...NONE.

&&

PUBLIC...CS
AVIATION...SH

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
547 AM EDT MON JUN 4 2007

INZ021-028>031-035>049-051>057-060>065-067>072-051015-
CARROLL-WARREN-TIPPECANOE-CLINTON-HOWARD-FOUNTAIN-MONTGOMERY-
BOONE-TIPTON-HAMILTON-MADISON-DELAWARE-RANDOLPH-VERMILLION-PARKE-
PUTNAM-HENDRICKS-MARION-HANCOCK-HENRY-VIGO-CLAY-OWEN-MORGAN-
JOHNSON-SHELBY-RUSH-SULLIVAN-GREENE-MONROE-BROWN-BARTHOLOMEW-
DECATUR-KNOX-DAVIESS-MARTIN-LAWRENCE-JACKSON-JENNINGS-
547 AM EDT MON JUN 4 2007 /447 AM CDT MON JUN 4 2007/

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL INDIANA.

.DAY ONE...TODAY AND TONIGHT.

SCATTERED THUNDERSTORM ACTIVITY IS POSSIBLE THIS AFTERNOON AND
EVENING. ALTHOUGH SEVERE STORMS ARE NOT EXPECTED...ISOLATED STORMS
MAY PRODUCE GUSTY WINDS AND SMALL HAIL.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

THUNDERSTORM ACTIVITY IS POSSIBLE ON TUESDAY...AS WELL AS FROM
THURSDAY NIGHT THROUGH NEXT WEEKEND. AT THE PRESENT
TIME...CONDITIONS CONTINUE TO APPEAR FAVORABLE FOR THE DEVELOPMENT
OF SEVERE STORMS TOWARDS THE END OF THE WEEK.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED. SEVERE STORM SPOTTERS ARE
ENCOURAGED TO MONITOR FUTURE WEATHER TRENDS AND STATEMENTS REGARDING
THE SEVERE THREAT LATER THIS WEEK.

&&

MORE INFORMATION...ALONG WITH OTHER WEATHER...HYDROLOGICAL AND
CLIMATE INFORMATION CAN BE FOUND...AT HTTP://WEATHER.GOV/IND (ALL
LOWERCASE)

JAS

The radiosonde launches on either side of the tornado, from the nearest station that was launching then, drawn and analyzed the way Storm Lab does: the same diagram, the same parcel and shear definitions SPC's mesoanalysis uses.

Terre Haute (HUF), 19 km from the path, in the two hours either side.

From the Iowa Environmental Mesonet's archive of airport observations.

The Indianapolis radar (KIND), 78 km away, was scanning. The volume nearest the touchdown began at 22:30 UTC.

Open the radar archive at this moment, over the track

Reflectivity and velocity, decoded from the Level II archive in the browser. Volumes take a few seconds to open the first time.

Local storm reports within 60 km of the path, in the three hours either side.

From the Iowa Environmental Mesonet's archive of National Weather Service local storm reports.

The live radar over the trackEvery 2007 tornado in IndianaEvery tornado in Indiana since 1950Warnings in force in Indiana nowThe forecast where you are

1 more were confirmed in the United States that day.

Ratings are the survey's, read off the damage rather than measured; the rating scale is above. Tornado counts rise through the record as reporting improved, so a year in the 1950s is not comparable with one today except for the strongest tornadoes, which were always noticed.

NOAA Storm Prediction Center tornado database, 1950-2025, the official record kept by NOAA's Storm Prediction Center.