A single supercell produced wind damage in central Missouri. Damage was confined to trees and power lines.
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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 LSX wrote it up.
A single supercell produced wind damage in central Missouri. Damage was confined to trees and power lines.
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 May 27, 1:41 PM CST, 36 minutes earlier. Its key messages:
Area Forecast Discussion National Weather Service Saint Louis MO 241 PM CDT Mon May 27 2024 .KEY MESSAGES... - Scattered showers and thunderstorms will be possible mainly along and north of I-70 through early this evening and again on Tuesday afternoon. - Wednesday and Thursday is expected to be dry before an unsettled weather pattern brings a chance of showers and thunderstorms beginning Thursday night through the weekend. Temperatures will be close to normal. && .SHORT TERM... (Through Late Tuesday Night) Issued at 238 PM CDT Mon May 27 2024 Scattered showers and thunderstorms have developed across north central Missouri this afternoon and are moving to the east. Expect them to continue to move to the east along and north of I-70 as the latest RAP is showing MLCAPES of around 1000 J/kg ahead of a subtle shortwave trough. Convection will likely diminish after after 00Z with loss of daytime heating and as the shortwave moves off to the east of the CWA. We will see a second round tomorrow afternoon across the northern CWA as NAM/GFS is showing another shortwave moving across the Upper Midwest. This weak ascent combined with forecast SBCAPES of 500-1000 J/kg suggests the potential for a slight chance of showers and thunderstorms. Temperatures will be at or just be normal for late May through Tuesday night as we will be in neutral or weak cold air advection. Britt && .LONG TERM... (Wednesday through Next Monday) Issued at 238 PM CDT Mon May 27 2024 Generally dry weather is expected mid-late week before the weather becomes more active as we enter next weekend. There is general agreement between the global models and LREF that a upper trough over Great Lakes will move east and off the East Coast at the same time that a Great Plains ridge will move into the Midwest by Friday. This will set up northwesterly flow aloft Wednesday into Thursday at the same time a surface high moves across Missouri and Illinois. The pattern will begin to change next weekend once the upper ridge moves past the area and the pattern become quasi-zonal over the Midwest. There is good agreement between the global models with timing and strength of the lead shortwave on Friday night, but less so with subsequent troughs that will move through the area into early next week. The LREF is showing that about 50 percent of it members having rain on Friday night with at least some chance (20-30 percent) through the rest of next weekend. Temperatures will be at are a bit below normal into Friday as winds will have a north to east component which favor cooler weather before turning out of the south over the weekend. At the same time, 850mb temperatures will climb from around 10C to 15C. I have higher confidence mid-late week as the NBM IQR is 5 degrees or less Wednesday through Friday before becoming larger under the zonal flow over the weekend. Britt && .AVIATION... (For the 18z TAFs through 18z Tuesday Afternoon) Issued at 1240 PM CDT Mon May 27 2024 Scattered showers and thunderstorms have developed over north central Missouri and will move east southeast. This most likely airport to be affected is UIN between 21-23Z, so have added a VCTS. There is a low chance of JEF/COU to be affect between 19-21Z and the St. Louis area terminals between 23-01Z, but chances are too low to include at this time. Any of the heavier showers or thunderstorms could produce MVFR or possible IFR ceilings and visibilities in brief downpours. Winds will remain out of the west to northwest. Britt && .LSX WATCHES/WARNINGS/ADVISORIES... MO...None. IL...None. && WFO LSX
Hazardous Weather Outlook National Weather Service St Louis MO 312 PM CDT Mon May 27 2024 ILZ058>060-064-065-069-070-074-079-095>102-MOZ018-019-026-027- 034>036-041-042-047>052-059>065-072>075-084-085-099-282015- Greene IL-Macoupin IL-Montgomery IL-Bond IL-Fayette IL-Clinton IL- Marion IL-Washington IL-Randolph IL-Adams IL-Brown IL-Pike IL- Calhoun IL-Jersey IL-Madison IL-Saint Clair IL-Monroe IL-Knox MO- Lewis MO-Shelby MO-Marion MO-Monroe MO-Ralls MO-Pike MO-Boone MO- Audrain MO-Moniteau MO-Cole MO-Osage MO-Callaway MO-Montgomery MO- Lincoln MO-Gasconade MO-Warren MO-Saint Charles MO-Franklin MO- Saint Louis MO-Saint Louis City MO-Jefferson MO-Crawford MO- Washington MO-Saint Francois MO-Sainte Genevieve MO-Iron MO- Madison MO-Reynolds MO- 312 PM CDT Mon May 27 2024 This Hazardous Weather Outlook is for portions of eastern and central Missouri as well as west central and southwest Illinois. .DAY ONE...Tonight. There is a chance of thunderstorms through early this evening. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. There is a chance of thunderstorms Thursday evening through Sunday. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. Britt
Preliminary Local Storm Report
National Weather Service St Louis MO
923 AM CDT Mon May 27 2024
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0610 PM Tstm Wnd Gst 2 NW Barr 38.42N 90.13W
05/26/2024 M81 MPH St. Clair IL Airplane Pilot
Measured with the weather station at an
aviation flight park near Millstadt.
&&
PfahlerPreliminary Local Storm Report
National Weather Service St Louis MO
1020 AM CDT Mon May 27 2024
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0542 PM Tstm Wnd Dmg Damiansville 38.51N 89.63W
05/26/2024 Clinton IL Public
Multiple tree limbs down around
Damiansville.
&&
PfahlerPreliminary Local Storm Report
National Weather Service St Louis MO
1031 AM CDT Mon May 27 2024
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0718 PM Tstm Wnd Dmg 2 ENE Coffman 37.79N 90.18W
05/26/2024 Ste. Genevieve MO Public
A large portion of a metal barn roof
removed.
&&
PfahlerPreliminary Local Storm Report
National Weather Service St Louis MO
141 PM CDT Mon May 27 2024
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0542 PM Tstm Wnd Dmg Peerless Park 38.55N 90.50W
05/26/2024 St. Louis MO Fire Dept/Rescue
Multiple large tree limbs downed and
wind-driven hail damage to siding and
windows.
&&
PfahlerPreliminary Local Storm Report
National Weather Service St Louis MO
146 PM CDT Mon May 27 2024
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0731 PM Tstm Wnd Dmg 2 NW Farina 38.85N 88.80W
05/26/2024 Fayette IL NWS Storm Survey
Multiple snapped large tree limbs and a
light metal carport destroyed between St.
Peter and Farina.
&&
PfahlerThe St Louis radar (KLSX), 147 km away, was scanning. The volume nearest the first event began at 20:17 UTC.
2 thunderstorm wind. Local standard time, as filed.
Thunderstorm winds downed a large tree which pulled live power lines on a home in Columbia.
Trees fell on power lines near Mokane and Mount Sterling. A tree was also reported down over a roadway in Chamois. Additional cities impacted include Aud and Mint Hill.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Missouri in 2024Every state in 2024This day in weather historyWarnings in Missouri, May 2024
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: 1174713, 1174714.