Thunderstorm Wind, Oregon
- When
- July 20, 7:17 PM CST
- Where
- Oregon County, Rover
- Measured
- 60 kt (69 mph) estimated gust
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 36.717, -91.617
Damaging Wind in Missouri, July 20, 2003
Several trees were downed from thunderstorm wind gusts.
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
The toll
- Deaths
- 0
- Injuries
- 0
- Property damage
- None recorded
- Crop damage
- None recorded
- Events
- 1
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 SGF wrote it up.
Several trees were downed from thunderstorm wind gusts.
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 Springfield, MO wrote its last area forecast discussion before the first event at Jul 20, 5:12 PM CST, 2 hours 5 minutes earlier.
Area forecast discussion, Jul 20, 5:12 PM CST, 2 hours 5 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SPRINGFIELD MO 612 PM CDT SUN JUL 20 2003 ...UPDATED FOR AVIATION DISCUSSION... .DISCUSSION... MESOSCALE UPDATE... WEAK DISTURBANCE (AROUND 600MB) WIGGLING THROUGH THE AREA IS QUITE EVIDENT IN THE AREA PROFILERS. SOME WEAK WARM AIR ADVECTION IN ADVANCE OF THE SUBTLE FEATURE WAS APPARENTLY ENOUGH TO IGNITE QUITE A BIT OF TOWERING ACCAS WITH SCATTERED CONVECTION LATER THIS AFTERNOON. OUT AHEAD OF THE ELEVATED CONVECTION RECENT RADAR TRENDS AS WELL AS VISUAL OBSERVATIONS SUGGEST SOME SURFACE BASED CONVECTION HAS BEGUN TO DEVELOP IN OZARK COUNTY. AIRMASS IS VERY UNSTABLE BUT MID LEVEL FLOW IS RATHER LIMP WITH 0-6KM SHEAR OF ONLY 25-30KT. DESPITE THE RELATIVELY WEAK SHEAR...STRONG INSTABILITY WOULD STILL BE ENOUGH FOR STRONG TO SEVERE MULTICELLULAR CONVECTION WITH ANY SURFACE BASED CELLS. MORE ORGANIZED CONVECTION IS POSSIBLE LATER TONIGHT DEPENDING ON HOW NEBRASKA CONVECTION EVOLVES. IZZI && .AVIATION... FOR 0Z TAFS...FEW CHANGES MADE TO GOING TAFS FOR NOW. ELEVATED CONVECTION ASSOCIATED WITH THE WEAK WAVE HAS NOW GENERALLY MOVED EAST OF BOTH OF THE TERMINALS. STRONGEST LOW LEVEL MOISTURE CONVERGENCE ALSO EAST OF THE TERMINALS SO ANY NEW CONVECTIVE DEVELOPMENT SHOULDNT AFFECT THE TERMINALS EITHER. DEPENDING ON HOW CONVECTION OVER EASTERN NEBRASKA EVOLVES MAY NEED TO UPDATE THE TAFS IN A FEW HOURS TO INTRODUCE SOME THUNDERSTORMS FOR LATE TONIGHT AND TOMORROW MORNING...BUT GIVEN THE UNCERTAINTIES REGARDING THE EVENTUAL EVOLUTION HAVE DECIDED NOT TO INTRODUCE A TEMPO GROUP FOR THUNDER ATTM. IZZI && .SGF WATCHES/WARNINGS/ADVISORIES... .MO...HEAT ADVISORY ALONG AND WEST OF A COLE CAMP...TO STOCKTON...TO CASSVILLE LINE THROUGH TONIGHT. .KS...HEAT ADVISORY ALL ZONES THROUGH TONIGHT. WFO SGF
Hazardous weather outlook, Jul 20, 6:16 PM CST, 1 hour 1 minute before
KSZ073-097-101-MOZ055>058-066>071-077>083-088>098-101>106-211100-
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SPRINGFIELD MO
716 PM CDT SUN JUL 20 2003
...SEVERE THUNDERSTORMS POSSIBLE TONIGHT...
THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE MISSOURI OZARKS AND EXTREME
SOUTHEAST KANSAS.
.DAY ONE...TONIGHT.
WEATHER HAZARDS EXPECTED:
NUMEROUS THUNDERSTORMS....SOME SEVERE WITH:
HAIL TO THE SIZE OF GOLF BALLS
DAMAGING WINDS TO 70 MPH
TORRENTIAL DOWNPOURS
AREAS AFFECTED AND TIMING:
SEVERE THUNDERSTORMS ARE POSSIBLE SOUTH AND EAST OF AN AVA TO
ROLLA LINE THROUGH MIDNIGHT.
ANOTHER ROUND OF SEVERE THUNDERSTORMS IS POSSIBLE BETWEEN MIDNIGHT
AND 6 AM NORTHWEST OF A JOPLIN TO ROLLA LINE.
DISCUSSION:
NUMEROUS THUNDERSTORMS...SOME SEVERE WITH HAIL UP TO THE SIZE OF
GOLF BALLS AND DAMAGING WINDS IN EXCESS OF 70 MPH...WILL AFFECT
SOUTH CENTRAL MISSOURI THIS EVENING.
ADDITIONAL STRONG TO SEVERE THUNDERSTORMS COULD MOVE INTO MAINLY
NORTHERN AND WESTERN PORTIONS OF THE OUTLOOK AREA AFTER MIDNIGHT.
THESE THUNDERSTORMS COULD BE SEVERE WITH HAIL TO ONE INCH IN
DIAMETER AND DAMAGING WINDS IN EXCESS OF 60 MPH.
ADDITIONAL INFORMATION: A SEVERE THUNDERSTORM WATCH IS IN EFFECT
FOR SOUTH CENTRAL MISSOURI UNTIL MIDNIGHT.
.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.
ANOTHER ROUND OF STRONG TO SEVERE THUNDERSTORMS WILL BE POSSIBLE
ACROSS THE OZARKS REGION MONDAY NIGHT INTO TUESDAY MORNING AS THE
LAST IN A SERIES OF UPPER LEVEL DISTURBANCES INTERACTS WITH A
STATIONARY FRONT THAT WILL BE IN PLACE OVER THE AREA BY LATE
MONDAY.
.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION WILL BE NEEDED OVER SOUTH CENTRAL MISSOURI THIS
EVENING...AND POSSIBLY AFTER MIDNIGHT NORTH AND WEST OF AN AVA TO
ROLLA LINE.
&&
THIS PRODUCT IS NOW AVAILABLE IN GRAPHICAL FORMAT...ALONG WITH OTHER
WEATHER...HYDROLOGICAL AND CLIMATE INFORMATION...AT
HTTP://WWW.CRH.NOAA.GOV/SGF
IZZIIn the hours before
Local storm report, Jul 20, 6:41 PM CST, 36 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
741 PM CDT SUN JUL 20 2003
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0655 PM 1 E GENTRYVILLE MO WIND DAMAGE
07/20/03 DOUGLAS TREES UPROOTED. REPORTED
BY LAW ENFORCEMENT
OFFICIAL.Local storm report, Jul 20, 6:52 PM CST, 25 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
752 PM CDT SUN JUL 20 2003
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0721 PM 2 NW CABOOL MO 2.75 INCH HAIL
07/20/03 TEXAS REPORTED BY COOPERATIVE
OBSERVER.Local storm report, Jul 20, 6:57 PM CST, 20 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
757 PM CDT SUN JUL 20 2003
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0750 PM WEST PLAINS MO 1 INCH HAIL
07/20/03 HOWELL REPORTED BY FIRE AND
RESCUE.
0750 PM WEST PLAINS MO 70 MPH TSTM GUST
07/20/03 HOWELL 60-70 MPH WINDS WITH
NUMEROUS TREES DOWN IN
TOWN. REPORTED BY FIRE
AND RESCUE.Local storm report, Jul 20, 7:04 PM CST, 13 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
804 PM CDT SUN JUL 20 2003
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0735 PM 4 S WILLOW SPGS MO WIND DAMAGE
07/20/03 HOWELL ROOF BLOWN OFF WELL
CONSTRUCTED OUT BUILDING.
REPORTED BY PUBLIC.
0750 PM WEST PLAINS MO 1 INCH HAIL
07/20/03 HOWELL REPORTED BY FIRE AND
RESCUE.Local storm report, Jul 20, 7:12 PM CST, 5 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
812 PM CDT SUN JUL 20 2003
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0735 PM 4 S WILLOW SPGS MO WIND DAMAGE
07/20/03 HOWELL ROOF BLOWN OFF FIRE
HOUSE. REPORTED BY FIRE
AND RESCUE.Local storm report, Jul 20, 7:17 PM CST, 0 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
817 PM CDT SUN JUL 20 2003
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0700 PM DRURY MO WIND DAMAGE
07/20/03 DOUGLAS LARGE TREE LIMBS BLOWN
DOWN. REPORTED BY
EMERGENCY MANAGEMENT.
0700 PM DRURY MO .75 INCH HAIL
07/20/03 DOUGLAS REPORTED BY EMERGENCY
MANAGEMENT.The radar
The Springfield radar (KSGF), 169 km away, was scanning. The volume nearest the first event began at 01:17 UTC.
Event by event
1 thunderstorm wind. Local standard time, as filed.
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
- Heat in California, July 20, 2003
- Tornado in Iowa, July 20, 2003
- Hail and Damaging Winds in Illinois, July 20 to 21, 2003
- Tornado in Iowa, July 20, 2003
- Lightning Strike in South Dakota, July 20, 2003
- Heat in Oklahoma, July 20, 2003
- Hail and Damaging Winds in North Dakota, July 20, 2003
- Flash Flood and Hail in Iowa, July 20 to 21, 2003
- Hail in Nebraska, July 20, 2003
- Tornado and Hail in Michigan, July 20 to 22, 2003
- Tornado and Hail in Nebraska, July 20, 2003
- Tornado in Iowa, July 20, 2003
More
Every storm in Missouri in 2003Every state in 2003This day in weather historyWarnings in Missouri, July 2003
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: 5373134.