A storm system brought locally heavy rains, to portions of west central Missouri, on February 11, 2009. This caused some minor flooding, on the South Grand River and Blackwater River, February 11th through February 12th, 2009.
Every event with a place to put it. 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.
A storm system brought locally heavy rains, to portions of west central Missouri, on February 11, 2009. This caused some minor flooding, on the South Grand River and Blackwater River, February 11th through February 12th, 2009.
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 Feb 11, 3:51 PM CST, 54 minutes earlier.
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
351 PM CST WED FEB 11 2009
.DISCUSSION...
UPPER STORM SYSTEM HAS TRACKED QUICKLY INTO THE OHIO VALLEY AND GREAT
LAKES WITH SKIES CLEARING FROM THE WEST LATE THIS AFTERNOON. STRATOCU
WILL CONTINUE TO ERODE FM THE WEST THIS EVENING AS THE LOW LEVEL
DRYING ADVECTS INTO THE CWFA. HAVE SOME CONCERN ABOUT FOG DEVELOPMENT
FOR THE SERN TWO THIRDS OF THE CWA FOR TONIGHT...WITHIN THE AREAS OF
HEAVY RAINFALL. HOWEVER...ENOUGH DRY AIR MAKE WORK SE TO PRECLUDE THE
DEVELOPMENT OF FOG. WILL LET THE EVENING SHIFT MAKE THE FINAL CALL.
RATHER QUIET UNTIL FRIDAY AS THE NEXT UPPER TROUGH DIGGING ALONG THE
CALIFORNIA COAST AFFECTS THE CWA. GFS AND NAM HAVE SIMILAR TRACKS IN
THE MOVEMENT OF THE H5 TROUGH/SHORTWAVE WITH THE ECMWF STILL
SUGGESTING A FURTHER NORTH TRACK. THE CANADIAN MODEL HAS ALSO TRENDED
FURTHER NORTH. GIVEN THAT THE SYSTEM IS STILL OFF THE COAST AND NOT
IN THE CONUS UPPER AIR NET...DO NOT HAVE A PREFERENCE BETWEEN THE GFS
AND ECMWF TRACKS. WILL INCORPORATE THE SREP MODEL FOR CURRENT TRACK
WHICH SUGGEST THE H5 VORTICITY CENTER TO TRACK ALONG OF JUST NORTH OF
INTERSTATE 70. THE MORE SRN TRACK IS A LONG SHOT AT THIS TIME...AS
COLD AIR WILL NOT BE IN PLACE...THEREFORE THE TRACK WILL BE AT LEAST
PARTIALLY DICTATED BY A TIGHTER BAROCLINIC ZONE NR THE IOWA BDR.
THE TRACK ALONG AND NORTH OF I-70 WOULD FAVOR A HEAVY SNOW THREAT
FOR EXTREME NRN MO WITH SOUNDINGS AND THICKNESSES IN LINE. HAVE
ISSUED A WINTER STORM WATCH FOR FRIDAY AND FRIDAY EVENING.
MDT ISENTROPIC LIFT WILL BEGIN IN EXTREME NW MO TWD DAYBREAK FRIDAY
WITH MDT TO STG ISENTROPIC LIFT FM 290-298K ACR THE NRN TWO THIRDS OF
THE CWA. SATURATION IS QUICKLY ACHIEVED ACROSS NRN MO DURING THE DAY
WITH MDT TO STG H8-H7 FRONTOGENETICAL/QG FORCING SUPPLEMENTING THE
STG AND DEEP UPWARD VERTICAL MOTION FOR NWRN MO. THERE IS ALSO A
HINT OF WEAK TROWAL NEAR THE IOWA BDR.
FOR THE SERN TWO THIRDS OF THE CWA...SATURATION WILL TAKE LONGER TO
ACHIEVE...BUT MDT QVECTOR CONVERGENCE AND ISENTROPIC FAVORS A GOOD
THREAT OF SHOWERS/RAIN FM KC TO KCDJ WITH DECREASING CHANCES FOR THE
EXTREME SERN CWA.
ITS AN EARLY CALL FOR SNOWFALL AMOUNTS BUT GIVEN STG FORCING AND
MODEST GULF MOISTURE...INITIAL ESTIMATE IS 4 TO 8 INCHES.
TEMPERATURES WILL STAY AT OR SLIGHTLY ABOVE FREEZING FOR NWRN MO BUT
TEMPERATURES CONSIDERABLY MORE TRICKY FOR THE SRN CWA. THE TRACK OF
THE SFC LOW WILL BE CRITICAL WITH A TRACK ALONG OR SOUTH OF THE CWA PREFERRED.
THE SHORTWAVE TROUGH WILL CONTINUE TO TRACK ENE FRIDAY EVENING WITH
SIMILAR FORCING MECHANISM PROVIDING A THREAT OF HEAVY SNOW FOR XTRM NERN
MO. ISENTROPIC LIFT IN COMBINATION WITH QVECTOR CONVERGENCE MAY
PROVIDE FOR A BRIEF WINDOW OF RAIN/SNOW ALONG I-70 AS TEMPERATURES
COOL WITH THE PASSAGE OF THE SFC LOW.
DB
MEDIUM RANGE (SATURDAY-WEDNESDAY)
TEMPERATURES WILL START THE PERIOD COLDER THAN NORMAL. COLD AIR
ADVECTION AND SURFACE WINDS OFF A FRESH SNOW PACK TO OUR NORTH WILL
KEEP SATURDAY HIGH TEMPERATURES LOW AS HIGH PRESSURE BUILDS IN FROM
THE NORTH. AS SUCH...HAVE GONE BELOW GFS AND ECMWF GUIDANCE. COOLER
THAN NORMAL TEMPERATURES WILL PERSIST THROUGH SUNDAY AS THE HIGH
PRESSURE FINALLY MOVES TO THE EAST AFTER A COLD MORNING MONDAY.
THE RETURN FLOW MONDAY WILL ONCE AGAIN WARM TEMPERATURES TO NEAR
NORMAL FOR THIS TIME OF YEAR. THE SOUTHERLY FLOW WILL ALSO BRING
LIMITED MOISTURE BACK INTO THE AREA AHEAD OF NEXT STORM SYSTEM THAT
WILL AFFECT THE AREA TUESDAY INTO TUESDAY NIGHT. PREFER ECMWF AND
UKMET GUIDANCE ON TIMING OF SYSTEM. GFS GUIDANCE HAS SHOWN A
TENDENCY TO MOVE SYSTEMS TO FAST THROUGH THIS TYPE OF PATTERN. AS
SUCH...HAVE STARTED PRECIPITATION CHANCES ON TUESDAY MORNING AND
THEN INCREASE THEM INTO THE AFTERNOON AS SYSTEM MOVES THROUGH.
PRECIPITATION COULD START AS A RAIN SNOW MIX CHANGING TO MORE OF RAIN
EVENT AS TEMPERATURES WARM SOME DURING THE DAY TIME HOURS. WEDNESDAY
WILL SEE SOME LINGERING PRECIPITATION IN THE EAST PORTION OF THE CWA
BEFORE SKIES WILL START TO CLEAR OVER THE ENTIRE AREA.
DNB
&&
.AVIATION...
FOR THE 18Z TAFS...PRECIPITATION HAS EXITED THE TERMINALS AS THE
UPPER LEVEL LOW ACCELERATES NE TWD IL. CIGS WERE QUICKLY IMPROVING FM
THE WEST WITH VFR CONDITIONS AT KSTJ AND JUST WEST OF KC METRO TERMINALS.
ONLY FLY IN THE OINTMENT FOR THIS AFTERNOON IS A MVFR CLOUD DECK IN
SERN NEBRASKA AND XTRM NW MO. THIS BAND OF MVFR STRATOCU WILL ADVECT
SE...BUT DOWNSLOPE WARMING SHOULD ERODE THE SWRN EDGE...KEEPING THE
DECK NORTH OF THE KC TERMINALS THIS AFTN. HOWEVER...THE CLOUD DECK
MAY BRUSH KSTJ THROUGH MID-AFTERNOON. OTHERWISE...GUSTY NORTHWEST
WINDS WILL DIMINISH LATE THIS AFTN. VFR CONDITIONS ARE EXPECTED TNGT
THROUGH 18Z ON THURSDAY AS WEAK HIGH PRESSURE WILL BE IN CONTROL.
DB
&&
.EAX WATCHES/WARNINGS/ADVISORIES...
MO...WINTER STORM WATCH FROM 6 AM FRIDAY TO MIDNIGHT SATURDAY FOR
MOZ001-MOZ002-MOZ003-MOZ004-MOZ005-MOZ006-MOZ011-MOZ012.
KS...NONE.HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO 1256 PM CST WED FEB 11 2009 KSZ025-057-060-102>105-MOZ001>008-011>017-020>025-028>033-037>040- 043>046-053-054-121900- 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- 1256 PM CST WED FEB 11 2009 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 NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY ANOTHER POTENT STORM SYSTEM WILL AFFECT THE OUTLOOK AREA FRIDAY...BRINGING THE CHANCE FOR SIGNIFICANT ACCUMULATING SNOWFALL ACROSS NORTHERN KANSAS AND MISSOURI FRIDAY AND FRIDAY NIGHT. THOUGH THE TRACK OF THIS STORM SYSTEM STILL REMAINS UNCERTAIN...THE GREATEST THREAT FOR HEAVY SNOWFALL AFFECTING TRANSPORTATION INTERESTS LIES GENERALLY ALONG AND NORTH OF THE HIGHWAY 36 CORRIDOR. HOWEVER...EVEN POINTS TO THE SOUTH COULD EXPERIENCE MINOR SNOWFALL ACCUMULATIONS. EMERGENCY MANAGERS AND INTERESTED PARTIES WITH TRAVEL PLANS ARE URGED TO MONITOR UPDATED NATIONAL WEATHER SERVICE OUTLOOKS AND FORECASTS OVER THE NEXT COUPLE OF DAYS FOR MORE INFORMATION ON THIS POSSIBLE WINTER STORM. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED. DB
The national radar mosaic for the moment the first event began.
2 flood. Local standard time, as filed.
The Blackwater River near Valley City crested at 23.93 feet, or 1.93 feet above flood stage.
The South Grand River near Urich crested at 25.65 feet, or 1.65 feet above flood stage.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Missouri in 2009Every state in 2009This day in weather historyWarnings in Missouri, February 2009
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: 154702, 154701.