Indiana, 2008

Hail and Damaging Winds in Indiana, September 20, 2008

September 20, 2008 · NWS IND · 4 events in 4 counties and zones

Thunderstorms briefly produced severe winds and hail, chiefly during the late afternoon hours, in central Indiana.

Where it happened

Every event with a place to put it. Tap one for its entry below.

  • Tornadoes
  • Tropical storms and surge
  • Floods
  • Wind
  • Hail
  • Winter weather
  • Heat and drought
  • Cold
  • Fire, smoke and dust
  • Marine and coastal
  • Other

Open the live radar over this ground

The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
4

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.

What happened

The episode as NWS IND wrote it up.

Thunderstorms briefly produced severe winds and hail, chiefly during the late afternoon hours, in central Indiana.

What forecasters said that day

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 Indianapolis, IN wrote its last area forecast discussion before the first event at Sep 20, 2:20 PM EST, 1 hour 23 minutes earlier.

Area forecast discussion, Sep 20, 2:20 PM EST, 1 hour 23 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
320 PM EDT SAT SEP 20 2008

.FCST DISCUSSION...

FCST FOCUS ON LOW POPS AND TEMPS IN THE SHORT TERM.

UPPER LOW NOW DRIFTING N ALONG THE MS RIVER WILL CONTINUE TO PROVIDE
WEAK LIFT ALOFT/SUPPORT FOR SCT -SHRA/TSRA THIS EVENING INTO SUN.

GUIDANCE IS AGAIN IN DECENT AGREEMENT WITH MOS TEMPS IN THE SHORT
TERM. WILL LEAN TOWARD A BLEND FOR MAX TEMPS AND LEAN TOWARD THE
METMOS FOR LOWS.

TONIGHT...WEAK SFC LOW CENTERED NEAR IND WILL ACT TO PRODUCE WEAK
SFC CONVERGENCE.  DAYTIME HEATING AND CAPES IN THE 500-750J/KG RANGE
WILL PRODUCE SCT STORMS THIS EVENING. ISOLATED/SCT STORMS COULD
PERSIST INTO THE NIGHT CLOSER TO THE UPPER SYSTEM NEAR THE IL
BORDER SO WILL KEEP LOW CHCS THERE.

SUN...UPPER SYSTEM WILL DRIFT ACROSS THE AREA WITH ANOTHER ROUND OF
ISOLATED SHOWERS OR STORMS POSSIBLE. DAYTIME HIGHS AGAIN SHOULD
APPROACH OR JUST EXCEED THE 80 DEGREE MARK WITH SOME INCREASE IN
CLD COVERAGE POSSIBLE.

MON AND BEYOND...WE FAVOR A DRY FCST CLOSER TO THE ECMWF. GFS
ENSEMBLE IS TRENDING TOWARD THE ECMWF WHICH FCSTS HIGHER HTS/RIDGING
TO PERSIST FOR A LONGER PERIOD OF TIME AHEAD OF THE NEXT LONGWAVE
TROUGH WHICH WILL ALSO BE WEAKENING WITH TIME. LOOK FOR DRY AND
WARMER THAN AVG CONDS NEXT WEEK.

&&

.AVIATION...

DISCUSSION FOR 18Z TAFS.

UPPER LEVEL LOW OVER SOUTHEAST MISSOURI WILL CONTINUE TO MOVE ONLY
VERY SLOWLY THROUGH THE TAF PERIOD. CURRENT SATELLITE AND RADAR
TRENDS SHOW THAT CLOUDS ARE INCREASING BUT PRECIPITATION NOT
REALLY INCREASING OVER CENTRAL INDIANA. THIS IS LIKELY DUE TO
QUITE A BIT OF DRY AIR THAT IS PRESENT IN THE LOW LEVELS. WILL
MENTION FEW-SCT CU THIS AFTERNOON AT 4-7KFT BUT NOT INCLUDE CB
SINCE THIS IS NOT SUPPORTED SO FAR BY WHAT IS GOING ON. CLOUDS
WILL DISSIPATE AFTER 00Z WITH THE LOSS OF SUN. BUT THE MID LEVEL
DECK SHOULD REMAIN IN THE SCT-BKN STATUS WITH THE UPPER LOW STILL
NEARBY. THIS CLOUD DECK IS LIKELY TO INHIBIT FOG FORMATION DESPITE
THE LIGHT WINDS AND INCREASED LOW LEVEL MOISTURE TONIGHT. THE BEST
SHOT AT IFR WILL BE LAF WHERE IT IS MOST LIKELY THAT SKIES WILL
CLEAR. AT HUF AND BMG WILL GO WITH MVFR VSBY AFTER 06Z TIME
TONIGHT WITH DISSIPATION OF FOG AT ALL SITES BY 13Z. THEN JUST VFR
CONDITIONS FOR THE LAST SEVERAL HOURS.

&&

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

AVIATION...JOHNSON
PUBLIC...CO
Hazardous weather outlook, Sep 20, 2:18 PM EST, 1 hour 25 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
318 PM EDT SAT SEP 20 2008

INZ021-028>031-035>049-051>057-060>065-067>072-211930-
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-
318 PM EDT SAT SEP 20 2008

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL INDIANA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

SCATTERED THUNDERSTORMS WILL BE POSSIBLE THIS AFTERNOON INTO TONIGHT. NO
SEVERE WEATHER IS ANTICIPATED HOWEVER THE STRONGEST STORMS WILL BE
CAPABLE OF PRODUCING SMALL HAIL AND HEAVY RAINS. ANY HAIL THREAT
WILL END WITH SUNSET THIS EVENING. BE AWARE FOR DANGEROUS CLOUD TO
GROUND LIGHTNING WITH ANY STORMS INTO TONIGHT.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.

THUNDERSTORMS WILL BE POSSIBLE SUNDAY. NO SEVERE WEATHER IS
EXPECTED BUT ANY STORM WILL BE CAPABLE OF PRODUCING CLOUD TO
GROUND LIGHTNING.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED.

&&

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

CO

The radar

The Indianapolis radar (KIND), 24 km away, was scanning. The volume nearest the first event began at 20:40 UTC.

Open the radar archive at this moment

Event by event

2 hail, 2 thunderstorm wind. Local standard time, as filed.

Hail, Marion

When
September 20, 3:43 PM EST to 3:45 PM EST
Where
Marion County, 0.89 mi WSW of Lawrence
Measured
0.75 in hail
Reported by
Trained Spotter
Coordinates
39.826, -86.046

Three-quarter inch hail fell at 38th Street and Shadeland Avenue.

Thunderstorm Wind, Putnam

When
September 20, 4:07 PM EST
Where
Putnam County, 1.38 mi S of Roachdale
Measured
58 kt (67 mph) measured gust
Reported by
Public
Coordinates
39.830, -86.800

A couple of trees were blown down by thunderstorm winds.

Thunderstorm Wind, Hamilton

When
September 20, 4:30 PM EST
Where
Hamilton County, 5.78 mi ESE of Fishers
Measured
56 kt (64 mph) estimated gust
Reported by
Department of Highways
Coordinates
39.939, -85.919

A tree was blown down by thunderstorm winds near the intersection of Olio Road and 104th Street just outside northeast Indianapolis in the Fishers area.

Hail, Johnson

When
September 20, 4:35 PM EST
Where
Johnson County, Trafalgar
Measured
0.88 in hail
Reported by
Emergency Manager
Coordinates
39.420, -86.150

An emergency manager reported nickel size hail falling for 20 minutes.

What these are

Hail
Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
Thunderstorm Wind
Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Indiana in 2008Every state in 2008This day in weather historyWarnings in Indiana, September 2008

Sources

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: 137037, 137038, 137039, 137040.