Strong southerly winds in adavnce of a storm system caused winds to gust as high as 50 mph in Lee's Summit. Some minor damage reported in Independence.
Every event with a place to put it; 1 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
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.
The episode as NWS EAX wrote it up.
Strong southerly winds in adavnce of a storm system caused winds to gust as high as 50 mph in Lee's Summit. Some minor damage reported in Independence.
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 Kansas City, MO wrote its last area forecast discussion before the first event at Apr 22, 8:55 AM CST, 5 hours 37 minutes earlier.
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
955 AM CDT SUN APR 22 2007
.DISCUSSION...
UPDATED FORECAST TO REMOVE MENTION OF CHANCE POPS FOR THIS MORNING
FOR ALL BUT NORTHWEST AND NORTH CENTRAL MO. SOUTHERN END OF BAND OF
SCATTERED THUNDERSTORMS WITH LEAD VORTICITY LOBE EXTENDS INTO
NORTHWEST MO AND IS ROTATING NORTHWARD. FURTHER SOUTH THE ATMOSPHERE
IS A BIT TOO CAPPED AS NOTED ON KTOP RAOB AND CHARACTER OF AC AND
CUMULUS FIELDS ON SATELLITE IMAGERY. THIS ACCAS BAND NOW OVER
WESTERN MO COULD EVENTUALLY MORPH INTO SOME ELEVATED CONVECTION AS
IT HEADS EASTWARD THIS AFTERNOON BUT IT WILL BE WIDELY SCATTERED AND
NON-SEVERE. ATTENTION WILL TURN TOWARDS THIS AFTERNOONS AND EVENINGS
SEVERE POTENTIAL AS DRY SLOT NOTED IN WATER VAPOR IMAGERY OVER
CENTRAL KS SHIFTS EASTWARD AND PUSHES THE CLOUD COVER OUT OF THE
WESTERN CWA AND ALLOWS FOR SURFACE HEATING AND DESTABILIZATION TO
OCCUR. WILL LIKELY SEE A N-S BROKEN LINE OF STORMS FORM UNDER THE KS
DRY SLOT THIS AFTERNOON AND TRACK NORTHEASTWARD INTO THE FAR WESTERN
CWA BY MID/LATE AFTERNOON. SEVERE THREAT WILL SPREAD EASTWARD WITH
THE LINE OF STORMS.
MJ
&&
.PREV DISCUSSION
/500 AM CDT SUN APR 22 2007/
WATER VAPOR IMAGERY AND PROFILER WINDS SHOW A POTENT UPPER LOW
EARLY THIS MORNING ACROSS SOUTHWEST KANSAS. WEAKENING CONVECTION WAS
DRIFTING NORTH/NORTHEAST ACROSS CENTRAL KANSAS IN ADVANCE OF THE
SYSTEM. STRONGER AND MORE WIDESPREAD CONVECTION WAS ONGOING ACROSS
WESTERN KANSAS...UNDER THE COLD CORE OF THE UPPER SYSTEM. THE SYSTEM
HAS TRENDED SLOWER THAN YESTERDAYS RUNS WHICH WILL INCREASE THE
POTENTIAL OF SEVERE WEATHER BY LATE AFTERNOON. THE NAM IS SHOWING A
BAND OF CONVECTION DEVELOPING IN A WARM AIR ADVECTION WING...OR ON
THE EDGE OF INCREASING 850MB MOISTURE TRANSPORT. THE TIME FRAME OF
THIS ACTIVITY WOULD BE BETWEEN 15Z AND 18Z ACROSS WESTERN AREAS
BEFORE PUSHING EASTWARD. MAIN CONCERN FOR SEVERE WEATHER WILL HOLD
OFF UNTIL MID/LATE AFTERNOON AS THE UPPER LOW TRACKS JUST NORTH OF
THE FORECAST AREA. SHEAR PROFILES ARE QUITE STRONG WITH 0-6KM BULK
SHEAR VALUES OF 40 TO 50 KTS. IN ADDITION...0-3KM HELICITY VALUES
INCREASE TO 300-400 M2/S2 BETWEEN 21Z AND 00Z. LIMITING FACTOR FOR A
HIGHER TORNADO POTENTIAL MAY BE LIMITED DEEP
MOISTURE/INSTABILITY...AS THE SREF MUCAPE VALUES STAY BELOW 1000
J/KG. WILL HAVE TO MONITOR CONDITIONS CLOSELY THOUGH. A DRY SLOT
LOOKS TO WORK INTO THE AREA BY AFTERNOON WHICH COULD ENHANCE
INSTABILITY AND TORNADIC POTENTIAL. IN ANY EVENT...THERE WILL LIKELY
BE SOME ORGANIZED SEVERE WEATHER AS THE UPPER LOW COLD CORE TRACK
NEAR THE FORECAST AREA. THE COLD CORE ALOFT AND STRONG SHEAR WILL
LIKELY LEAD TO SOME DECENT SIZED HAIL STONES. KEPT LIKELY POPS
ACROSS NORTHERN AREAS AS THE STRONGER DYNAMICS NEAR THE UPPER LOW
WILL LEAD TO MORE WIDESPREAD CONVECTION LATE THIS AFTERNOON AND INTO
THE EVENING HOURS. KEPT CHANCE POPS FURTHER SOUTH FOR MORE SCATTERED
SHOWERS AND STORMS ALONG THE SURFACE FRONT. THE MAJORITY OF
CONVECTION SHOULD BE OUT OF OUR EASTERN COUNTIES BY 06Z.
AN ADDITIONAL CONCERN TODAY WILL BE STRONG WINDS. THE PRESSURE
GRADIENT WILL TIGHTEN UP IN ADVANCE OF THE APPROACHING LOW TODAY. IN
ADDITION...BUFKIT MOMENTUM TRANSFER PROGS SHOW THE POTENTIAL OF 40+
KT WINDS MIXING DOWN TO THE SURFACE ACROSS EASTERN KANSAS AND WESTERN
MISSOURI. STILL UNCERTAIN ABOUT CLOUD TRENDS TODAY WHICH COULD
POTENTIALLY LIMIT FULL MIXING. HOWEVER...DECIDED TO GO WITH A WIND
ADVISORY THIS AFTERNOON ACROSS THE AREA WITH THE BEST CHANCE OF
SEEING SOME CLEARING. FOR NOW WILL RUN THE ADVISORY FROM THE KC METRO
SOUTHWARD ALONG THE KANSAS/MISSOURI BORDER. IF A LARGER AREA OF
CLEARING DEVELOPS...THIS MAY NEED TO BE EXPANDED A BIT FURTHER NORTH
AND EAST.
NOT ALOT OF CHANGES TO THE REMAINING GRIDS. THE FRONT PUSHES TO THE
SOUTH OF THE FORECAST AREA...LEAVING THE AREA DRY FOR MONDAY. KEPT
SOME CHANCE POPS IN LATE MONDAY NIGHT AS ISENTROPIC LIFT AND MOISTURE
TRANSPORT INCREASE WITH THE NORTHWARD RETURN OF THE FRONT. THE
BOUNDARY STILL LOOKS TO STALL ACROSS OR NEAR THE FORECAST AREA BEFORE
ANOTHER POTENT UPPER LEVEL SYSTEM PUSHES INTO THE PLAINS BY TUESDAY
NIGHT. BETTER MOISTURE WILL BE IN PLACE IN ADVANCE OF THIS
SYSTEM...THEREFORE LIKELY POPS LOOK GOOD TUESDAY/TUESDAY NIGHT. WILL
NEED TO MONTIOR THE POTENTIAL OF HEAVY RAINFALL AND SEVERE WEATHER
DURING THIS TIME PERIOD. WHERE THE BOUNDARY STALLS WILL BE KEY TO
LATER QFP FORECASTS AND COVERAGE AND MODE OF STRONG CONVECTION. THE
SOUTHERN PART OF THE FORECAST AREA MAY BE IN THE WARM SECTOR...WHILE
LOCATIONS ALONG THE IOWA BORDER MAY ONLY SEE THE THREAT OF SOME
ELEVATED HAILERS BY TUESDAY NIGHT.
&&
.EAX WATCHES/WARNINGS/ADVISORIES...
MO...WIND ADVISORY FROM 1 PM SUNDAY TO 7 PM SUNDAY FOR MOZ028-MOZ029-
MOZ037-MOZ043-MOZ053.
KS...WIND ADVISORY FROM 1 PM SUNDAY TO 7 PM SUNDAY FOR KSZ057-KSZ060-
KSZ103-KSZ104-KSZ105.
SAWHAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO 123 PM CDT SUN APR 22 2007 KSZ025-057-060-102>105-MOZ001>008-011>017-020>025-028>033-037>040- 043>046-053-054-231830- ATCHISON KS-MIAMI-LINN KS-DONIPHAN-LEAVENWORTH-WYANDOTTE- JOHNSON KS-ATCHISON MO-NODAWAY-WORTH-GENTRY-HARRISON-MERCER- PUTNAM-SCHUYLER-HOLT-ANDREW-DE KALB-DAVIESS-GRUNDY-SULLIVAN-ADAIR- BUCHANAN-CLINTON-CALDWELL-LIVINGSTON-LINN MO-MACON-PLATTE-CLAY- RAY-CARROLL-CHARITON-RANDOLPH-JACKSON-LAFAYETTE-SALINE-HOWARD- CASS-JOHNSON MO-PETTIS-COOPER-BATES-HENRY- 123 PM CDT SUN APR 22 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHWEST...NORTH CENTRAL AND WEST CENTRAL MISSOURI...AS WELL AS EXTREME EASTERN KANSAS. .DAY ONE...THIS AFTERNOON AND TONIGHT A STRONG STORM SYSTEM WILL PUSH THROUGH NORTHERN KANSAS...THE EASTERN HALF OF NEBRASKA...WESTERN IOWA AND NORTHWEST MISSOURI THIS AFTERNOON AND EVENING. STRONG TO ISOLATED SEVERE THUNDERSTORMS WILL BE POSSIBLE ACROSS EXTREME NORTHWEST MISSOURI AND NORTHEAST KANSAS THIS AFTERNOON AND EARLY EVENING WITH LARGE HAIL...DAMAGING WINDS AND EVEN AN ISOLATED TORNADO POSSIBLE. AS THE AFTERNOON EVOLVES SCATTERED STRONG TO SEVERE THUNDERSTORMS ARE FORECAST TO DEVELOP SOUTHWARD ACROSS FAR EASTERN KANSAS AND MOVE INTO WEST CENTRAL MISSOURI BY LATE AFTERNOON. DUE TO THE VERY STRONG WIND FIELDS AND VERTICAL WIND SHEAR ISOLATED SUPERCELLS MAY FORM OVER THIS REGION WITH DAMAGING WINDS AND ISOLATED TORNADOES POSSIBLE. INDIVIDUAL STORMS ARE EXPECTED TO STREAK TO THE NORTHEAST WHILE THE ENTIRE BAND SHIFTS EASTWARD DURING THE EVENING HOURS. HIGHER BASED THUNDERSTORMS OVER NORTHEAST MISSOURI MAY PRODUCE SOME SMALL HAIL DURING THE EARLY AFTERNOON HOURS BEFORE MOVING INTO SOUTHERN IOWA. THE SEVERE THREAT WILL END WEST OF A MARYVILLE TO BUTLER LINE...WHICH INCLUDES THE KANSAS CITY AND ST JOSEPH AREAS...BY 9 PM AND OVER THE REST OF THE REGION BY 11 PM. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY A SECOND POTENT UPPER LEVEL STORM SYSTEM WILL REACH THE CENTRAL PLAINS ON TUESDAY. THIS SYSTEM WILL INTERACT WITH A STALLED OUT FRONTAL BOUNDARY TO PRODUCE SEVERAL ROUNDS OF SHOWERS AND THUNDERSTORMS BEGINNING LATE MONDAY NIGHT AND CONTINUING THROUGH WEDNESDAY. THIS COULD LEAD TO SOME HEAVY RAINFALL...AND CONDITIONS WILL NEED TO BE MONITORED FOR POTENTIAL MINOR FLOODING BY MIDWEEK. IN ADDITION...THE BEST CHANCE FOR THE DEVELOPMENT OF STRONG TO SEVERE STORMS WILL BE ALONG AND SOUTH OF INTERSTATE 70 TUESDAY AFTERNOON AND EVENING. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL BE NEEDED AFTER 3 PM THIS AFTERNOON. ACTIVATION MAY BE NEEDED ONCE AGAIN TUESDAY AND TUESDAY EVENING.
The national radar mosaic for the moment the first event began.
1 strong wind. Local standard time, as filed.
Large tree limbs and power lines down in Independence. Wind gusts to 50 mph were measures at the Lee's Summit Airport.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Missouri in 2007Every state in 2007This day in weather historyWarnings in Missouri, April 2007
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: 23945.