Thunderstorm Wind, Knox
- When
- July 8, 7:30 PM CST
- Where
- Knox County, Edina
- Measured
- 55 kt (63 mph) estimated gust
- Reported by
- NEWSPAPER
- Coordinates
- 40.167, -92.167
Thunderstorm wind gusts downed some old, large trees in Edina.
Damaging Wind in Missouri, July 8, 2003
1 thunderstorm wind, as filed by the National Weather Service.
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 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 8, 2:30 PM CST, 5 hours earlier.
Area forecast discussion, Jul 8, 2:30 PM CST, 5 hours before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE ST LOUIS MO 330 PM CDT TUE JUL 8 2003 .DISCUSSION... MAIN CONCERNS THIS PACKAGE TO BE EXTENT OF PRECIPITATION IN NEAR TERM...AND TEMPERATURES. UPPER AIR PATTERN CONTINUING TO EVOLVE FROM ZONAL FLOW ACROSS NORTHERN HALF OF U.S. TO 500MB RIDGE-TROUGH CONFIGURATION BY 60HRS. FA WILL BE IN NORTHWEST FLOW ALOFT FOR REMAINDER OF PERIOD. AREA OF THUNDERSTORMS DEVELOPED AROUND MIDDAY IN UNSTABLE AIR OVER NORTHERN ZONES IN REGION OF FAVORABLE MOISTURE CONVERGENCE AND UPPER LEVEL SHEAR IN ASSOCIATION WITH 500MB SHORT WAVE MOVING ACROSS IOWA. EXPECT TSRA TO AFFECT MAINLY NORTHERN AND EASTERN ZONES TONIGHT AND WILL GO WITH LOW POPS THERE. SURFACE LOW FORECAST TO MOVE ACROSS IOWA ON WEDNESDAY AFTERNOON. GFS MOVES LOW FASTER AFTER 36HRS WHILE ETA IS SLOWER AND DEEPER. WILL KEEP LIKELY POPS FOR WEDNESDAY NIGHT AND END PRECIPITATION FROM NORTH THURSDAY MORNING. REMAINDER OF EXTENDED TO STAY DRY. MODEL TEMPERATURES HAVE BEEN CONSISTENTLY 2-4 DEGREES COOL LAST COUPLE OF DAYS...AND WILL GO AT OR SLIGHTLY ABOVE WARMER GUIDANCE FOR NEAR TERM. EXPECT SOME RELIEF FROM HEAT AFTER FRONTAL PASSAGE LATE WEDNESDAY...BUT DAYTIME TEMPERATURES BUILDING BACK UP INTO LOWER 90S BY END OF EXTENDED WITH MOSTLY SUNNY SKIES AND LOWER DEW POINTS. && .LSX WATCHES/WARNINGS/ADVISORIES... MO...NONE. IL...NONE. WDB
Hazardous weather outlook, Jul 8, 4:35 AM CST, 14 hours 55 minutes before
ILZ058>060-064-065-069-070-074-079-095>102-MOZ018-019-026-027- 034>036-041-042-047>052-059>065-072>075-084-085-099-091200- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE ST LOUIS MO 535 AM CDT TUE JUL 8 2003 THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL AND EASTERN MISSOURI AND WEST CENTRAL AND SOUTHWEST ILLINOIS. .DAY ONE...TODAY AND TONIGHT AN EXCESSIVE HEAT WARNING HAS EXPIRED FOR THE AREA. CLOUDS WILL BE HEAVY ENOUGH TODAY TO OFFSET THE SEARING HEAT OF THE SUN FOR THE TIME BEING. TEMPERATURES AND HEAT INDICES WILL REMAIN BELOW ADVISORY OR WARNING THRESHOLDS TODAY. IT WILL PROBABLY A A LITTLE WARMER TOMORROW...BUT WE WILL WAIT TO SEE HOW THAT PANS OUT. THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS THE ENTIRE AREA TODAY THROUGH WEDNESDAY. CONDITIONS ARE FAIRLY UNSTABLE AND STORMS COULD BECOME SEVERE BY EVENING. THE ENTIRE ST LOUIS WARNING AREA IS INCLUDED. THE MAIN TIMEFRAME FOR ANY ACTIVITY TO OCCUR WILL BE TONIGHT. THESE STORMS ARE FORECAST TO DEVELOP OVER NEBRASKA THIS AFTERNOON AND MOVE EAST INTO IOWA THIS EVENING. THEY COULD ALSO EXTEND SOUTH INTO NORTHERN MISSOURI AS THEY MOVE THROUGH. A COLD FRONT WILL FOLLOW CLOSE BEHIND PROBABLY INITIATING A LINE OF STORMS ALONG IT BY WEDNESDAY EVENING. THE PRIMARY CONCERN IS FOR LARGE HAIL AND DAMAGING WINDS. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY A COLD FRONT WILL MOVE INTO THE AREA WEDNESDAY NIGHT OR EARLY THURSDAY. LATE ON TUESDAY AND BECOME NEARLY STATIONARY BEFORE MOVING SOUTH OF MISSOURI AND ILLINOIS BY THURSDAY. THIS FRONT WILL BRING SCATTERED THUNDERSTORMS...WITH THE POSSIBILITY OF LARGE HAIL AND DAMAGING WINDS ON BOTH ON TUESDAY AND WEDNESDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED OVER PARTS OF NORTHEAST MISSOURI AS WELL AS WEST CENTRAL ILLINOIS TODAY AND TONIGHT. && MORE INFORMATION MAY BE OBTAINED AT... HTTP://WWW.CRH.NOAA.GOV/LSX (ALL LOWER CASE) PEDIGO
In the hours before
Local storm report, Jul 8, 6:09 PM CST, 1 hour 21 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
709 PM CDT TUE JUL 08 2003
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0642 PM 10E QUINCY IL 70 MPH WIND GUST
07/08/03 ADAMS MEASURED BY UIN ASOS.Local storm report, Jul 8, 6:55 PM CST, 35 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
755 PM CDT TUE JUL 08 2003
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0530 PM LA GRANGE MO WIND DAMAGE
07/08/03 LEWIS SEVERAL TREES AND POWER
LINES DOWN IN TOWN.
REPORTED BY SPOTTER.
0600 PM LA GRANGE MO WIND DAMAGE
07/08/03 LEWIS NUMEROUS TREES AND POWER
LINES DOWN. STORM STRUCK
BETWEEN 530 AND 600 PM.
REPORTED BY SHERIFFS
OFFICE.
0600 PM MO FLOODING
07/08/03 KNOX SEVERAL COUNTY ROADS
CLOSED DUE TO HIGH WATER.
REPORTED BY SHERIFFS
OFFICE.
0630 PM 5N MONTICELLO MO FLOODING
07/08/03 LEWIS WATER OVER ROAD AT COUNTY
HIGHWAY A AND NORTH
FABIUS RIVER. MODOT ON
SITE AND MONITORING. ROAD
NOT CLOSED. REPORTED BY
SHERIFFS OFFICE.Local storm report, Jul 8, 7:20 PM CST, 10 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
820 PM CDT TUE JUL 08 2003
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0530 PM LA GRANGE MO WIND DAMAGE
07/08/03 LEWIS SEVERAL TREES AND POWER
LINES DOWN IN TOWN.
REPORTED BY SPOTTER.
0535 PM CAMP POINT IL WIND DAMAGE
07/08/03 ADAMS SEVERAL TREES AND POWER
LINES DOWN. REPORTED TO
TV STATION BY SPOTTER.
0600 PM LA GRANGE MO WIND DAMAGE
07/08/03 LEWIS NUMEROUS TREES AND POWER
LINES DOWN. STORM STRUCK
BETWEEN 530 AND 600 PM.
REPORTED BY SHERIFFS
OFFICE.
0600 PM MO FLOODING
07/08/03 KNOX SEVERAL COUNTY ROADS
CLOSED DUE TO HIGH WATER.
REPORTED BY SHERIFFS
OFFICE.
0630 PM 5N MONTICELLO MO FLOODING
07/08/03 LEWIS WATER OVER ROAD AT COUNTY
HIGHWAY A AND NORTH
FABIUS RIVER. MODOT ON
SITE AND MONITORING. ROAD
NOT CLOSED. REPORTED BY
SHERIFFS OFFICE.The radar
The St Louis radar (KLSX), 207 km away, was scanning. The volume nearest the first event began at 01:28 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
- Flash Flooding and Flood in Ohio, July 8 to 9, 2003
- Flash Flooding and Hail in Ohio, July 8, 2003
- Hail and Damaging Winds in Ohio, July 8, 2003
- Flood in Indiana, July 8 to 31, 2003
- Wildfire in California, July 8 to 11, 2003
- Tornado and Flash Flooding in Indiana, July 8 to 9, 2003
- Damaging Winds and Lightning Strikes in Illinois, July 8, 2003
- Hail and Damaging Winds in South Dakota, July 8, 2003
- Wildfire in California, July 8 to 10, 2003
- Flash Flood in West Virginia, July 8, 2003
- Hail and Damaging Winds in Iowa, July 8, 2003
- Flash Flooding and Lightning Strike in Missouri, July 8, 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: 5375396.