On the evening of June 25th, thunderstorms developed in northwestern Kansas ahead of an approaching cold front. These thunderstorms produced wind gusts up to 67 mph in the area and damaging hail up to golf ball size in the area.
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 GLD wrote it up.
On the evening of June 25th, thunderstorms developed in northwestern Kansas ahead of an approaching cold front. These thunderstorms produced wind gusts up to 67 mph in the area and damaging hail up to golf ball size in the area.
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 Goodland, KS wrote its last area forecast discussion before the first event at Jun 25, 5:32 PM CST, 1 minute earlier.
Area Forecast Discussion National Weather Service Goodland KS 532 PM MDT Fri Jun 25 2021 .MESOSCALE DISCUSSION... Issued at 532 PM MDT Fri Jun 25 2021 Key Message: A mix of severe weather storm modes and resulting hazards are progressing across the forecast area this evening. A mix of storm modes is currently being observed across the Tri- State region. As of 525 pm MDT...only warned storm is a bowing segment/complex moving across Cheyenne County Kansas. It is showing fairly good organization, and is moving around a remnant outflow boundary from previous storms this afternoon in SW Nebraska. The environment is favorable for damaging winds to occur with Cape of 1000+ J/kg and DCape of 1000+ j/kg as well. Shear is alright for storm organization, but the cold pool should drive this complex to continuing moving southeast for a few more hours. More isolated cells are developing across portions of NW Kansas, generally east of a line from Oberlin to Tribune. These isolated cells would pose a larger hail threat than winds, but damaging winds can not be ruled out as well with DCAPE values in excess of 1000 j/kg. As we get later into the evening hours, any worries about potential landspout tornadoes should return to zero as boundary layer decouples. The overall tornado threat is still very low so wouldn't worry too much about it. && .SHORT TERM...(This evening through Saturday) Issued at 328 PM MDT Fri Jun 25 2021 A Severe Thunderstorm Watch is in effect for the entire Tri-State area until 8 PM MT/9 PM CT. Hazards include up to 2" hail and damaging winds gusts up to 70 mph. This afternoon - Tonight... An upper level trough is moving east across the Rockies and into the High Plains sending a cold front across the Tri-State area this evening. Despite last night's activity, the environment is favorable once again for severe storms. A few shortwaves are expected to move across the area this evening, helping these storms continue to move across the Plains. Storms are already beginning to fire as a line of discrete storms move northeast from SE Colorado and east from the Front Range. The severe ingredients/parameters are weaker than yesterday; however, that may not be much of a limit for these storms today as we are already witnessing a few severe thunderstorms in SW Nebraska. MLCAPE is only around 500-1500 j/kg and most of the weak CIN seen in the SPC Mesoanalysis has degraded. Lapse rates are also weaker at 6-7.5 C/km with effective bulk shear at 30-45 kts from the WSW/W. Shear is currently at the higher end of the range east of KS Hwy-25 where CAPE is also a little better. As the storms progress east across the CWA, the storms are expected to become more widespread, possibly into a more complex linear storm mode as the environment becomes more favorable. A concern though is how well that environment holds together after sunset. The hazards with these storms include large hail up to 2" and damaging wind gusts up to 70 mph. Frequent lightning and heavy rain are also a concern this evening. Storms area expected to impact the area from 4 to 11 PM MT. Overnight lows are expected to be in the mid 50s to lower 60s tonight with northwest winds around 10-15 kts. Saturday - Saturday Night... The SW to NE oriented upper level trough will continue to push into the forecast area; however, high pressure over the eastern CONUS will keep the trough axis over the NE panhandle. An inverted surface ridge will try to nudge along the lee side of the Rockies. Clouds are expected to stick around much of the day tomorrow, with a few areas clearing out in the late afternoon hours in time to see a few rays of sunshine. There is potential for isolated to scattered thunderstorms beginning around mid-day and continuing into the early evening hours. With the worked over environment from the previous two days, no severe weather is expected if any storms develop and move across the area. Temperatures are expected to be cooler tomorrow with highs in the 70s and overnight lows returning to the 50s. .LONG TERM...(Sunday through Friday) Issued at 256 PM MDT Fri Jun 25 2021 A stubborn pattern sets up for the beginning of the long term period. Guidance shows an upper trough extending from the northern Plains southwest towards the Desert Southwest. To the west, an area of high pressure prevails in the Pacific Northwest while another high spins over the east coast. With the region depicted either along the trough axis or on the backside of the trough, we should be under west to northwest flow Sunday through at least midweek as this blocking pattern prevails. While there is some weakening of the trough midweek, it looks to deepen on Thursday and Friday when a closed low comes south from Canada and merges into the trough. This setup results in chances for showers and thunderstorms each day Sunday through Friday as disturbances work their way through the flow. No day stands out for severe weather at this time. A warming trend is forecast through the long term period. Expect highs in the 70s to low 80s on Sunday and Monday, followed by a gradual warmup and highs in the upper 70s to upper 80s by Thursday. Low temperatures remain mainly in the 50s. && .AVIATION...(For the 00Z TAFS through 00Z Saturday evening) Issued at 515 PM MDT Fri Jun 25 2021 KGLD...thunderstorm chances exist from taf issuance through about 03z with the primary hazard being wind gusts in excess of 40kts and maybe some locally heavy rainfall which could create sub VFR visibilities. After 03z north winds around 10kts are expected through 14z with an increase into the 15g25kt range during the late morning through afternoon hours. Will also have to watch for some stratus and sub VFR cigs a few hours either side of 12z. KMCK...presently confidence is too low to include a thunderstorm mention in the forecast. Otherwise expect north to northwest winds around 10kts overnight increasing into the 15g25kt range from late Saturday morning through the afternoon. Similar to KGLD there could be a period of sub VFR cigs a few hours either side of sunrise. && .GLD WATCHES/WARNINGS/ADVISORIES... KS...NONE. CO...NONE. NE...NONE. && MESOSCALE...RRH SHORT TERM...KMK LONG TERM...JBH AVIATION...99
Hazardous Weather Outlook National Weather Service Goodland KS 445 PM MDT Fri Jun 25 2021 COZ090>092-KSZ001>004-013>016-027>029-041-042-NEZ079>081-261300- Yuma-Kit Carson-Cheyenne-Rawlins-Decatur-Norton-Sherman-Thomas- Sheridan-Graham-Wallace-Logan-Gove-Greeley-Wichita-Dundy-Hitchcock- Red Willow- 445 PM MDT Fri Jun 25 2021 /545 PM CDT Fri Jun 25 2021/ This hazardous weather outlook is for extreme southwest Nebraska... northwest Kansas and east central Colorado. .DAY ONE...TODAY... A Severe Thunderstorm Watch is in effect for the entire Tri-State area until 8 PM MT/9 PM CT for up to 2 inch hail and damaging wind gusts up to 70 mph. Strong to severe thunderstorms are expected to move through the area from west to east through 11 PM MDT (midnight CDT). .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH FRIDAY... Hazardous weather is not anticipated at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated. We would appreciate reports of hail in excess of one inch in diameter, wind gusts in excess of 55 mph, and storm related damage via telephone and social media.
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GOODLAND KS
457 PM MDT FRI JUN 25 2021
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0452 PM HAIL OAKLEY 39.13N 100.86W
06/25/2021 M0.25 INCH LOGAN KS EMERGENCY MNGR
A LITTLE BIT OF PEA SIZE HAIL OBSERVED.
MODERATE TO HEAVY RAINFALL OCCURRING.
&&
JBHPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GOODLAND KS
501 PM MDT FRI JUN 25 2021
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0430 PM TSTM WND GST 12 N KIT CARSON 38.93N 102.80W
06/25/2021 E50 MPH CHEYENNE CO PUBLIC
NO DAMAGE REPORTED.
&&
RRHSpecial Weather Statement National Weather Service Goodland KS 601 PM CDT Fri Jun 25 2021 KSZ014-015-028-029-252315- Gove KS-Sheridan KS-Thomas KS-Logan KS- 601 PM CDT Fri Jun 25 2021 ...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN THOMAS... NORTHEASTERN LOGAN...SOUTHWESTERN SHERIDAN AND NORTHWESTERN GOVE COUNTIES UNTIL 615 PM CDT... At 601 PM CDT, Doppler radar was tracking a strong thunderstorm near Oakley, moving southeast at 10 mph. Pea size hail and wind gusts up to 50 mph will be possible with this storm. Locations impacted include... Oakley and Grinnell. This includes Interstate 70 in Kansas between mile markers 72 and 93. A Severe Thunderstorm Watch remains in effect until 900 PM CDT for northwestern and west central Kansas. LAT...LON 3904 10093 3921 10084 3915 10047 3889 10060 TIME...MOT...LOC 2301Z 293DEG 9KT 3911 10081 024
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GOODLAND KS
510 PM MDT FRI JUN 25 2021
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0505 PM HEAVY RAIN OAKLEY 39.13N 100.85W
06/25/2021 M0.72 INCH LOGAN KS EMERGENCY MNGR
RAINFALL RECEIVED WITHIN ABOUT 30 MINUTES.
&&
JBHPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GOODLAND KS
512 PM MDT FRI JUN 25 2021
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0509 PM HAIL 2 W SAINT FRANCIS 39.77N 101.84W
06/25/2021 E0.50 INCH CHEYENNE KS PUBLIC
&&
JBHSpecial Weather Statement National Weather Service Goodland KS 616 PM CDT Fri Jun 25 2021 KSZ003-004-015-016-252330- Norton KS-Sheridan KS-Decatur KS-Graham KS- 616 PM CDT Fri Jun 25 2021 ...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN NORTON... NORTHEASTERN SHERIDAN...SOUTHEASTERN DECATUR AND NORTHWESTERN GRAHAM COUNTIES UNTIL 630 PM CDT... At 615 PM CDT, Doppler radar was tracking a strong thunderstorm 6 miles southeast of Dresden, or 16 miles northeast of Hoxie, moving east at 25 mph. Pea size hail and wind gusts up to 50 mph will be possible with this storm. Locations impacted include... Lenora and New Almelo. A Severe Thunderstorm Watch remains in effect until 900 PM CDT for northwestern Kansas. LAT...LON 3951 10044 3968 10035 3962 9998 3936 10010 TIME...MOT...LOC 2315Z 291DEG 22KT 3958 10031 024
The Goodland radar (KGLD), 34 km away, was scanning. The volume nearest the first event began at 23:33 UTC.
3 thunderstorm wind, 3 hail. Local standard time, as filed.
Report received of an estimated 50 to 60 mph thunderstorm wind gusts at location. No damage reported.
Report received of siding of a mobile home destroyed due to wind driven hail. Hail was estimated to be up to a penny in size.
Report received of an estimated 60 mph thunderstorm wind gust at location.
Report of golf ball sized hail received at location. Time is radar-estimated.
Report received of estimated dime to quarter sized hail at location. Time is radar-estimated.
Mesonet station reported a 67 mph thunderstorm wind gust at location.
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: 968207, 968208, 968454, 968453, 968476, 968479.