Name: Damaging Winds in Missouri, July 6, 2002
Start: 2002-07-06T17:00
End: 2002-07-06T17:05
Location: Missouri

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

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The toll

Deaths: 0
Injuries: 0
Property damage: $50,000
Crop damage: None recorded
Events: 2

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 LSX wrote it up.

Thunderstorm wind gusts caused scattered damage in the Columbia area. Trees and power lines were reported down on the southwest side of town and on the north side of the University of Missouri campus. Downed trees destroyed a vehicle and damaged one home.

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 St. Louis, MO wrote its last area forecast discussion before the first event at Jul 6, 12:50 PM CST, 4 hours 10 minutes earlier.

Area forecast discussion, Jul 6, 12:50 PM CST, 4 hours 10 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE ST LOUIS MO
150 PM CDT SAT JUL 6 2002

RETROGRESSION OF THE UA PATTERN ACRS NOAM UNDERWAY MUCH AS THE MDLS
HV BEEN ADVERTISING.  UPR HI WHICH WAS OVR THE WRN OH VLY YDA MRNG
HAS SHIFT WWD INTO THE MS VLY.  MDLS SHOW THE PATTERN SHIFT CONTG
INTO THE FCST PD AS THE UPR RDG BCMS WELL ESTABLISHED IN THE WRN
U.S. WITH TROFG OVR THE ERN U.S. AND NWLY FLOW SETTING UPR OVR THE
MIDWEST.  WRT TO THIS TRANSITION...WHILE ALL THE MDLS ARE SHWG THIS
PATTERN CHG...THE ONE DIF TDA WHICH CONTS FM THE LAST FEW DAYS IS
THE AMT OF AMPLIFICATION OF THE ERN TROF.  THE MDLS CONT TO DIFFER
AMG THEMSELVES AND WITH EACH RUN.  THE CAN AND ECMWF WERE THE CDST
00Z RUNS AND NOW THE 12Z AVN IS COMING IN LN WITH THEM AT LEAST
WED-THURS.

THE INITIAL IMPACT OF THIS GRDL PATTERN CHG HAS BEEN THE SHIFT OF
THE SFC MOIST AXIS WWD AS DRIER AIR ADVCTS IN FM THE OH VLY WITH
HI PRES BLDG SWD FM THE GRTLKS IN RESPONSE TO THE UPR LOW/TROF
OVR THE NE U.S..  THERE IS NO DEFINED BACKDOOR FNT RATHER A DIFFUSE
ZN...THE MOST IMPORTANT OF WHICH IS THE ERN EDGE OF HIER SFC DPTS
WHICH RUNS FM ERN IA TO NR THE MS RVR.  AS HAS BEEN THE CASE THE
LAST FEW DAYS ISOLD PULSE CNVCTN IS TRYING TO DVLP IN THE CU FIELD
BUT IS STRUGGLING.  SEEMS THE BEST CHC FOR ANY CNVCTN THIS AFT AND
EVNG WUD BE NE MO WHERE WELL-DEFINED OUTFLOW BNDRY FM THE IL MCS MAY
INTERACT WITH THE ERN EDGE OF THE DPR MSTR/MOST UNSBL AMS.  OTW THE
MDLS ALL AGREE THAT THE DRIER AIR OVR THE OH VLY WL CONT TO ADVCT
WWD ACRS THE CWFA TNGT BRINGING LESS HUMID CONDS FOR SVRL DAYS.
THIS WL BE SPCLY TRUE IN THE IL ZNS WHERE DPTS HV ALREADY FALLEN
INTO THE U50S.  WITH THIS WWD SHIFT IN THE UPR HI AND LOW LVL MSTR
AXIS IT SEEMS THE THREAT OF DIURNAL CNVCTN SHUD WANE.  IT APPEARS
OVR THE NEXT 36H THE BEST THREAT WUD AGAIN BE NE MO WHERE BNDRY FM
CURRENT ACTVTY MAY IMPACT...AND WHERE THE ETA ALSO SUGGEST THERE MAY
BE A RESIDUAL BNDRY ON SUN.  OTW WILL HOLD OFF ANY MENTION OF PCPN
UNTIL THE NEXT LRG SCALE FNT WHICH CONTS TO BE ADVERTISED FOR TUE
AFT-WED MRNG TIME FRAME.  WL LET THE HEAT WRNG FOR THE CITY OF ST
LOUIS EXPIRE AT 400 PM AS THE HIS HV BEEN WELL BLO CRITERIA. TMPS
SHUD MOD DOWNWARD A TAD OVR THE NEXT DAY OR TWO...SPCLY MINS WITH
THE LOWER SFC DPTS.

.STL...NONE
GLASS

The radar

The St Louis radar (KLSX), 146 km away, was scanning. The volume nearest the first event began at 23:02 UTC.

Open the radar archive at this moment

Event by event

2 thunderstorm wind. Local standard time, as filed.

Thunderstorm Wind, Boone

When: July 6, 5:00 PM CST
Where: Boone County, Columbia
Measured: 55 kt (63 mph)
Reported by: EMERGENCY MANAGER
Coordinates: 38.950, -92.333

Thunderstorm Wind, Boone

When: July 6, 5:05 PM CST
Where: Boone County, Columbia
Measured: 55 kt (63 mph)
Property damage: $50,000
Reported by: EMERGENCY MANAGER
Coordinates: 38.950, -92.333

What these are

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 Missouri in 2002 Every state in 2002 This day in weather history Warnings in Missouri, July 2002

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: 5304253, 5304254.