An extremely moist airmass was in place as storms erupted along a stationary front during the afternoon hours. Due to the high moisture content of the airmass, the storms were very efficient rainfall producers with some producing 3 to 4 inches of rain per hour.
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 ICT wrote it up.
An extremely moist airmass was in place as storms erupted along a stationary front during the afternoon hours. Due to the high moisture content of the airmass, the storms were very efficient rainfall producers with some producing 3 to 4 inches of rain per hour. Marion County saw the most impactful flooding with numerous evacuations and water rescues taking place across the county. Southeast Kansas also saw serious flooding with the Neosho River seeing significant rises.
These same storms also produced pockets of severe downburst winds with the town of Newton taking the brunt of the wind damage. These same storms resulted in an injury when straight-line winds severely damaged a mobile home in southeast Reno County.
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 Wichita, KS wrote its last area forecast discussion before the first event at Jun 24, 10:45 PM CST, 33 minutes earlier.
Area Forecast Discussion National Weather Service Wichita KS 1145 PM CDT Thu Jun 24 2021 .SHORT TERM...(This evening through Sunday night) Issued at 312 PM CDT Thu Jun 24 2021 Bottom line up front: Severe chances along the I-70 this afternoon/ this evening for central KS, then another chance of strong severe storms on Friday afternoon. Albiet a little further south than today's chance, with periodic chances of storms for going into the weekend. A rather complicated synoptic pattern across the forecast area, with a fairly stout surface low located near KHYS, with a quasi stationary boundary extending east from the low generally along I- 70. Low 70s dewpoints continue to pool along of just south of this boundary, with 2000 J/KG of MLCAPE located along the boundary, but a warm elevated mixed layer has kept any convection from developing so far. As the late afternoon continues, expect areas along the front to become uncapped, with severe convection expected to develop near the triple point currently located near KHYS or KRSL. Moderate bulk shear of 45 to 50 kts and fairly decent directional shear suggests, once the storms get going, supercell thunderstorms will be the initial storm mode, with atmosphere supportive of large hail up to golf balls and 60-70 mph damaging winds. Expect the bases of the storms to be fairly elevated, due to the LCL heights, of 7000-10000 ft AGL. So damaging winds may be the most likely severe weather threat, with the inverted-V sounding profile. Areas just north or northeast of the quasi stationary front, show an easterly wind component, which would lead to a more impressive curving hodograph for a possible tornado threat, but think this chance is more favorable to the northeast of the forecast area. As the evening and overnight continues, expect the low level jet to increase into central KS, which will probably lead to the supercells congealing into multicell clusters and an eastward propagating complex of storms (MCS), moving into NW MO, with some convection probably lingering for areas northeast of KICT, on the tail end of the MCS, along any outflow boundary it throws out to the south. Expect some elevated convection to linger for areas northeast of the forecast area into the early morning hours on Friday. Tricky forecast for the daytime hours on Friday, as the outflow boundary from tonights convection will probably push the quasi-stationary front a little further south into the forecast area, helping to reinforce the front, for better chances for convergence on Friday afternoon/evening. Some uncertainty on where this front will end up for Friday afternoon/evening, but a moderately unstable airmass will again pool to the south/southeast of the front, as a pseudo dryline line pushes into south central KS. The NAM/WRF and GFS suggest the front will be located somewhere near a KHUT to KSLN line, with afternoon heating leading to the atmosphere becoming uncapped for the late afternoon hours. The combination of bulk shear of 30-40 kts and a moderately unstable airmass will lead to another chance of strong/severe storms on Friday afternoon/evening, as a weak impulse in the SW mid level flow moves out into the plains for the afternoon hours. Would not be surprised to see SPC bump up their slight risk, to an enhanced risk for Friday afternoon, depending on the where the boundary ends up. Again this will be a mesoscale kinda day, with the most likely scenario being initial storms being supercells, with golf ball size hail and damaging wind gusts of 50-65 mph the main concerns, but enhancement along any kind of reinforcing outflow may lead to a localized tornado threat. As Friday evening/night progresses, low level jet and moisture transport looks to increase to the south of the quasi stationary boundary, which will lead to convection again congealing into slow moving convection. The big difference on Friday night, is the potential for backbuilding or regenerating storms as the NAM and GFS show the low level moisture transport lingering over central KS longer or remaining stationary, before veering out by early Sat morning. Precipitable water (PW) values of 195-200 percent of normal suggests very efficient rainfall producers, so localized flooding may be a concern by Sat morning. Will hit this heavy rainfall and potential flooding chance a little harder in the grids/zones and hazardous weather outlook. Most of the forecast area stays in the SW flow in the mid level for the rest of the weekend, as the boundary either "washes out" or drops to the south depending on how strong the outflow from Friday night convection will be. But an axis of high PW air for areas east of the KS Turnpike, suggests afternoon shower/thunderstorm chances will continue for most of the weekend for areas east of the KS Turnpike. Ketcham .LONG TERM...(Monday through Thursday) Issued at 312 PM CDT Thu Jun 24 2021 The unsettled weather pattern looks to continue for the start of the work week as well, as areas east of the KS turnpike remain in SW flow aloft with the main PW axis remaining stationary over this area through Tue and possibly Wed. So latest NBM pops look reasonable for now. Ketcham && .AVIATION...(For the 06Z TAFS through 06Z Friday night) Issued at 1141 PM CDT Thu Jun 24 2021 We've seen a recent uptick in shower and thunderstorm activity across central Kansas along and north of the stalled frontal boundary and this activity will persist for several more hours possibly lingering into the morning hours on Friday before we see a brief lull. A transient period of MVFR or even IFR under the heaviest acitivity is likely across central KS tonight while it'll be more hit and miss across south central KS. Storms are expected to redevelop on Friday afternoon with a more direct impact to those across southern Kansas. Storms are expected to develop by mid to late afternoon and continue into the evening hours. && .PRELIMINARY POINT TEMPS/POPS... Wichita-KICT 77 98 71 85 / 20 40 80 70 Hutchinson 74 97 68 85 / 30 40 80 60 Newton 76 97 70 84 / 30 50 80 70 ElDorado 77 96 71 84 / 30 40 80 80 Winfield-KWLD 77 98 71 86 / 20 30 70 80 Russell 69 91 64 82 / 60 50 80 40 Great Bend 71 92 65 82 / 40 50 80 40 Salina 73 94 68 84 / 60 50 90 60 McPherson 73 97 68 84 / 30 50 90 60 Coffeyville 77 96 74 88 / 20 30 60 80 Chanute 77 96 73 86 / 30 40 70 80 Iola 76 95 73 85 / 30 50 70 90 Parsons-KPPF 77 96 73 87 / 20 40 60 80 && .ICT WATCHES/WARNINGS/ADVISORIES... None. && SHORT TERM...Ketcham LONG TERM...Ketcham AVIATION...MWM
Hazardous Weather Outlook National Weather Service Wichita KS 915 PM CDT Thu Jun 24 2021 KSZ032-033-047>053-067>072-082-083-091>096-098>100-252045- Russell-Lincoln-Barton-Ellsworth-Saline-Rice-McPherson-Marion-Chase- Reno-Harvey-Butler-Greenwood-Woodson-Allen-Kingman-Sedgwick-Harper- Sumner-Cowley-Elk-Wilson-Neosho-Chautauqua-Montgomery-Labette- 915 PM CDT Thu Jun 24 2021 This hazardous weather outlook is for portions of Central Kansas, South Central Kansas and Southeast Kansas. .DAY ONE...Tonight Thunderstorms are expected to move east out of western Kansas into portions of central Kansas tonight. A few strong to marginally severe storms are possible with 60 mph winds and nickel sized hail. .DAYS TWO THROUGH SEVEN...Friday through Wednesday Showers and thunderstorms may linger into Friday morning, with renewed development likely in the afternoon and evening hours on Friday. These storms are expected to continue into early Saturday. Some strong or severe storms appear likely during this period, with large hail up to golf ball size and damaging winds to 65 mph. Depending on the strength of the boundary, a localized tornado threat may also exist across central Kansas for Friday evening. Heavy rainfall late Friday night may also lead to localized flooding. Periodic chances of storms are also forecast from Saturday night for south central and southeast Kansas then for areas mainly east of the Kansas Turnpike from Sunday through Tuesday. Confidence in timing and location of these storms is much lower. Please continue to check later outlooks for updated information. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed across central Kansas late this afternoon and this evening. && For a graphical version of this information, see our webpage at: https://weather.gov/crh/ghwo?sid=ict VP/Ketcham
Special Weather Statement
National Weather Service Wichita KS
1127 PM CDT Thu Jun 24 2021
KSZ033-048-049-250500-
Ellsworth KS-Lincoln KS-Saline KS-
1127 PM CDT Thu Jun 24 2021
The National Weather Service in Wichita has issued a
* Significant Weather Advisory for...
Northeastern Ellsworth County in central Kansas...
Southeastern Lincoln County in central Kansas...
Northern Saline County in central Kansas...
* Until midnight CDT.
* At 1125 PM CDT...National Weather Service meteorologists were
tracking a strong thunderstorm near Culver, or 8 miles northwest of
Salina...moving northeast at 35 mph.
hail up to the size of dimes...and wind gusts up to 50 mph are
possible with this storm.
* Locations impacted include...
Salina, New Cambria, Glendale and Westfall.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Be prepared to take shelter in the event the storms intensify and
become severe...or a warning is issued by the National Weather
Service.
&&
LAT...LON 3896 9793 3896 9738 3891 9737 3874 9808
3892 9807 3897 9793
TIME...MOT...LOC 0426Z 244DEG 30KT 3889 9773
KLEINSASSERPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WICHITA KS
1218 AM CDT FRI JUN 25 2021
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1218 AM TSTM WND GST 4 NW GALATIA 38.68N 99.01W
06/25/2021 E65 MPH BARTON KS TRAINED SPOTTER
ESTIMATED 60-65 MPH.
&&
MWMThe Dodge City radar (KDDC), 132 km away, was scanning. The volume nearest the first event began at 05:16 UTC.
23 thunderstorm wind, 6 flash flood, 1 hail. Local standard time, as filed.
An estimated 60 to 65 mph wind gust was reported.
Lyons Rice County Municipal Airport measured a gust of 59 mph.
Spotter estimated winds of 60 mph.
Dispatch reported a semi roll over. The time was estimated from radar.
A few stop signs were blown down as well as one to two inch diameter branches.
Water and debris was reported over the roadway south of Marion.
Eight inch diameter tree limbs and a 40 foot tall tree were reported down. Street signs were blown over.
Water was entering several homes and businesses on Main Street in the city.
Multiple areas of flash flooding reported.
A trained spotter reported occasional gusts up to 60 mph.
Hail was reported at the intersection of Kansas Highway 15 and 90th Street.
The roof of a machine shed was torn off.
A tree reportedly fell onto a home.
Multiple power poles were reported down.
Multiple powerlines were down as well as several trees uprooted and knocked over. Many railroad crossbars had broken off at the crossing. The damage occurred from Hesston to Newton.
A cargo van box that had been on the ground for a few years blew over north of Sylvia. A 12 inch diameter tree limb broke just north of the city as well. Multiple small limbs were reported down too.
Wind gust reported at the Newton City County Airport.
There was extensive tree damage reported in downtown including multiple trees that had fallen on homes.
A report was sent via Twitter of an estimated 60 mph wind gust.
A report of damage to a mobile home awning and a couple of cars. Time is estimated from radar. The city of Haven was reported to be without power too.
A home weather station measured a wind gust of 75 mph.
A trained spotter reported frequent gusts of 58 to 65 mph were occurring.
Report relayed via KWCH meteorologist.
Emergency manager reported 60 mph winds with power outages in the city of Benton.
Voluntary evacuations were occurring in town.
Salina Municipal Airport measured a 61 mph wind gust.
An estimated 60 mph gust was reported.
A large tree was reported down and blocking Highway 160 near NE 40th street. Time is estimated from radar.
Street flooding was occurring in multiple locations in town including several stalled vehicles.
Water was reported to have entered homes in Florence. Numerous cars are stuck in the mud and ditches. There were two water rescues in the county.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Kansas in 2021Every state in 2021This day in weather historyWarnings in Kansas, June 2021
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: 967347, 967367, 967348, 967349, 967612, 967353, 967354, 967355, 967357, 967368, 967358, 967617, 967604, 967603, 967362, 967372, 967359, 967360, 967369, 967373, 967370, 967363, 967352, 967351, 967364, 967620, 967619, 967618, 967365, 967366.