Scattered thunderstorms brought some isolated flooding to areas of Kansas City through the early morning hours. One water rescue was performed, otherwise there was little incident with the early morning flooding, some of which occurred in areas that flood commonly.
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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.
Scattered thunderstorms brought some isolated flooding to areas of Kansas City through the early morning hours. One water rescue was performed, otherwise there was little incident with the early morning flooding, some of which occurred in areas that flood commonly.
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 25, 2:30 AM CST, 1 hour 24 minutes earlier.
AREA FORECAST DISCUSSION National Weather Service Kansas City/Pleasant Hill MO 330 AM CDT Fri May 25 2018 .Discussion... Issued at 329 AM CDT FRI MAY 25 2018 This morning: Storms have redeveloped along the MO/KS border within the last hour or so. This is due to the upper level shortwave trough moving overhead, in conjunction with a strengthening the LLJ and some enhanced surface convergence. This activity is expected to expand spatially, mainly staying along and east of I-35. This cluster should stay sub-severe and will move east with time. In addition, there is an outflow boundary approaching our western border, which should be the focus for additional development this morning. Again, anything that develops should be sub-severe and move east throughout the morning hours. Finally, there is an additional line of storms approaching our area this morning from central KS. This line will continue moving southeast, with some of this activity potentially reaching our far southwestern border. However, models suggest it will weaken shortly after sunrise as the LLJ weakens, so any activity from this line that moves into our area should be short-lived. This afternoon and evening: Despite activity in the morning, signs point to the atmosphere being able to destabilize this afternoon, with SBCAPE projected to top out around 2000-2500 J/kg. The moderate instability, dew points in the upper 60s to low 70s, an approaching cold front (albeit weak), and the upper level shortwave trough will keep storm chances throughout the afternoon and evening, mainly along and east of I-35. Shear profiles remain on the low side, so right now there seems to only be a risk for a strong wind gusts or two and small hail. Storms should be isolated to scattered in nature and are expected to diminish during the overnight hours. Saturday-Monday: The cold front should stall to our north, keeping us in southwesterly to southerly flow at the surface. This along with upper level ridging moving overhead, will help keep us dry and allow temperatures to warm into the low to mid 90s for the holiday weekend, with Sunday being the warmest day. Heat indices are forecast to reach the upper 90s, so make sure to stay hydrated and take breaks from the sun, especially those who are more susceptible to heat exhaustion. Tuesday-Friday: The closed upper level low, currently off the CA coast, should make its way to the Midwest mid-week next week, bringing on and off storm chances for the forecast area. && .Aviation...(For the 06Z TAFS through 06Z Friday Night) Issued at 1159 PM CDT THU MAY 24 2018 The upper level shortwave that has allowed a line of thunderstorms to develop and move across central KS will cont to move east into the local area. Hi-res models suggest thunderstorm redevelopment over the terminals between 09Z-13Z and as such has a tempo for -tsra during that timeframe. Thunderstorms should move out of the area tomorrow morning with the remainder of most of the TAF pd staying dry although storms may be possible late in the TAF pd. Winds will be out of the south btn 5-10kts overnight and veer to the SW around 10kts tomorrow morning. && .EAX WATCHES/WARNINGS/ADVISORIES... KS...NONE. MO...NONE. && Discussion...Grana Aviation...73
Hazardous Weather Outlook...CORRECTED National Weather Service Kansas City/Pleasant Hill MO 432 AM CDT Fri May 25 2018 KSZ025-057-060-102>105-MOZ001>008-011>017-020>025-028>033-037>040- 043>046-053-054-260945- 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- 432 AM CDT Fri May 25 2018 This hazardous weather outlook is for northwest...north central and west central Missouri...as well as extreme eastern Kansas. .DAY ONE...Today and Tonight Scattered thunderstorms are expected today and tonight. Some storms may be strong, however widespread severe storms are not expected at this time. More detailed information can be accessed at... https://www.weather.gov/eax/hwo .DAYS TWO THROUGH SEVEN...Saturday through Thursday No Hazardous weather is expected at this time. More detailed information can be accessed at... https://www.weather.gov/eax/hwo
The national radar mosaic for the moment the first event began.
1 flood. Local standard time, as filed.
After heavy rain fell across the Kansas City area some localized flooding occurred. Near Kansas City, a commonly known area prone to flooding caused a water rescue to be performed. Otherwise the flooding across the area was very localized and caused no incident.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Missouri in 2018Every state in 2018This day in weather historyWarnings in Missouri, May 2018
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: 760583.