During the very early morning hours on May 12 a decaying line of storms moved through the Kansas City metro area. A very isolated area of enhanced wind produced some damage just east of Leawood, Kansas, in far western Jackson County Missouri.
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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.
During the very early morning hours on May 12 a decaying line of storms moved through the Kansas City metro area. A very isolated area of enhanced wind produced some damage just east of Leawood, Kansas, in far western Jackson County Missouri. Later in the day scattered thunderstorms formed across northern Missouri, bringing a few severe weather reports.
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 May 12, 3:15 AM CST, 2 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO 415 AM CDT Mon May 12 2014 .UPDATE... Issued at 934 PM CDT SUN MAY 11 2014 The going forecast remains on track and thinking for convective evolution is similar. The atmosphere remains modestly unstable ahead of a cold front that is pushing through central to southwestern KS currently. There also remains ample shear to support severe convection. There is a good chance that convection will fill in between SE Nebraska and southern Kansas and all this will push east during the overnight hours with timing likely after midnight. The potential for damaging winds and hail are the main threats for any storms late tonight. && .DISCUSSION... Issued at 415 AM CDT MON MAY 12 2014 The potential for severe weather will continue today. The culprit will be a strong cold front which currently extends from Nebraska City to just to the west of Wichita as of 3AM local time. Ongoing convection associated with this front, early this morning, has prompted a severe thunderstorm watch to be issued until 14Z. The main concern will be the potential for an isolated damaging wind gusts. Storms are then expected to weaken by mid-morning. These morning storms will make the severe threat this afternoon a bit conditional as to weather or not the atmosphere can destabilize enough this afternoon. The NAM suggests if conditions can destabilize from morning storms and clouds, around 2000J/KG of MLCAPE out ahead of the cold front is available. Shear also is good with 6km bulk shear values of 30-40kts. As such, if conditions can rebound from morning convection storms that develop will be capable of producing large hail, damaging winds and perhaps an isolated tornado basically along and east of the I-35 corridor. This cold front will exit the eastern part of the CWA around 00Z tonight however, there will still be residual showers and thunderstorms behind the front. Most areas will receive 0.5-1" of QPF with locally higher amounts. Showers with this front will exit the area early Tuesday morning as the upper level trough associated with the front moves off into the northern Plains. Tuesday will be much cooler but dry with highs in the low to mid 60s...some 10F below normal. Late Tuesday night another upper level trough will dig as it moves through the central Plains drawing moisture back northward out of the Gulf. this will lead to another round of showers on Tuesday night into Wednesday. This will make for even cooler readings on Wednesday with highs in the upper 50s to lower 60s. The remainder of the forecast period looks cool with chances for slight chances for showers especially on Thursday and Friday as the upper trough develops a cut off low across the western Great Lakes. This will allow for the chance of wrap around showers both days. Temperatures begin to moderate into next weekend as northwest flow abates across the area. Highs Sunday will be in the mid 60s to lower 70s. && .AVIATION...(For the 06Z TAFS through 06Z Monday Night) Issued at 1212 AM CDT MON MAY 12 2014 This is a very low confidence forecast with regards to thunderstorm chances and timing. The ongoing convection over central Kansas is slowly drifting eastward with individual cells moving northeast. However, as they move into northeastern Kansas, the storms diminish or die completely. The latest short-range models seem to have caught on to this weakening northeastward trend and now don't bring any real robust convection into the area. So have removed any TSRA for the terminals and have just mentioned some VCTS. Also, timing for convection tomorrow is highly dependent upon what happens in the next 6 hours and with high uncertainty, confidence just isn't high enough to carry thunderstorm group other than VCTS through tomorrow afternoon. Have kept conditions in the VFR range given uncertainty with convection. && .EAX WATCHES/WARNINGS/ADVISORIES... KS...NONE. MO...NONE. && UPDATE...CDB DISCUSSION...73 AVIATION...CDB
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO 704 PM CDT SUN MAY 11 2014 KSZ025-057-060-102>105-MOZ001>008-011>017-020>025-028>033-037>040- 043>046-053-054-130015- 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- 704 PM CDT SUN MAY 11 2014 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHWEST...NORTH CENTRAL AND WEST CENTRAL MISSOURI...AS WELL AS EXTREME EASTERN KANSAS. .DAY ONE...TONIGHT SEVERE THUNDERSTORMS ARE POSSIBLE LATE TONIGHT AS A LINE OF STORMS MOVES INTO THE AREA FROM THE WEST. THE MAIN THREATS WILL BE DAMAGING WINDS AND LARGE HAIL. MORE DETAILED INFORMATION CAN BE ACCESSED AT... HTTP://WWW.CRH.NOAA.GOV/IMAGES/FXC/EAX/EM1/EAX-EMBRIEFING1.PDF .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY THERE IS A CONDITIONAL SEVERE WEATHER THREAT ON MONDAY ACROSS THE ENTIRE OUTLOOK AREA. IF CONDITIONS CAN BECOME UNSTABLE DURING THE AFTERNOON HOURS AFTER EARLY MORNING THUNDERSTORMS...SEVERE STORMS MAY DEVELOP ALONG A COLD FRONT MOVING THROUGH THE AREA. DAMAGING WINDS AND LARGE HAIL WILL BE THE MAIN THREATS DURING THE AFTERNOON AND EVENING HOURS. MORE DETAILED INFORMATION CAN BE ACCESSED AT... HTTP://WWW.CRH.NOAA.GOV/IMAGES/FXC/EAX/EM1/EAX-EMBRIEFING1.PDF CDB
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
400 AM CDT MON MAY 12 2014
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0345 AM TSTM WND GST GARDNER 38.81N 94.93W
05/12/2014 E50 MPH JOHNSON KS TRAINED SPOTTER
2 INCH TREE LIMBS DOWN
&&
LAFLINThe Pleasant Hill radar (KEAX), 30 km away, was scanning. The volume nearest the first event began at 09:17 UTC.
2 thunderstorm wind, 2 hail. Local standard time, as filed.
A few tree limbs were broken and a port-a-potty was blown over in a neighborhood in far western Jackson County, near Leawood, Kansas.
Small outbuildings were blown down. Some minor siding damage was reported from debris blown into a residence. And an small deer fence was blown down near Jamesport.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Missouri in 2014Every state in 2014This day in weather historyWarnings in Missouri, May 2014
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: 522190, 522191, 522188, 522189.