Thunderstorms developed across eastern Colorado on the evening of the 16th. A landspout was reported 11 SSW Seibert.
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The episode as NWS GLD wrote it up.
Thunderstorms developed across eastern Colorado on the evening of the 16th. A landspout was reported 11 SSW Seibert. Nickel size hail was reported in Yuma and 4 SE of Yuma along with quarter size hail in Idalia.
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 16, 1:48 PM MST, 1 hour 56 minutes earlier. Its key messages:
Area Forecast Discussion National Weather Service Goodland KS Issued by National Weather Service Dodge City KS 248 PM MDT Mon Jun 16 2025 .KEY MESSAGES... - Strong to severe storms remain forecast This Evening and Tuesday. Tuesday continues to look like a more widespread event. - Above normal temperatures are likely to persist through the upcoming weekend, including temperature near 105, which could break records. - Critical fire weather potential increases later in the week. && .SHORT TERM /THROUGH TUESDAY NIGHT/... Issued at 245 PM MDT Mon Jun 16 2025 A weak low situated over eastern Colorado this afternoon could serve as a focusing mechanism for some convective activity in the early evening hours. The convection will most likely form along a weak dry line forming across far eastern Colorado and a weak warm frontal boundary extending The highest probability for convective development will be in the evening hours generally between 8 pm and midnight. However, this development is highly conditioned on temperatures warming enough to overcome a weak mid-level capping inversion. The latest CAMS output does show some development, but there is disagreement between the various models on the extent of convective activity. As a result, confidence in overall thunderstorm coverage is lower than average. At this time, some isolated to widely scattered thunderstorm activity is the most likely outcome for the evening hours. Model sounding information is supportive of strong to severe wind gusts being the primary concern from any severe thunderstorms that fire up. After midnight, the convective threat will wane rapidly as temperatures cool in relation to convective cold pooling and the loss of diurnal heating. Heading into tomorrow, the threat for severe storms is substantially higher as a potent shortwave trough axis approaches the forecast area from the west. The combination of ample instability and favorable 0-3km bulk shear values of 40 to 50 knots will support some severe thunderstorm activity. The convection will most likely develop initially in the late afternoon hours across the northwest portion of the forecast area in eastern Colorado and southwest Nebraska where the greatest upper level difluence and forcing will be tomorrow afternoon. As this convective activity strengthens, there are indications that an MCV will begin to form over northeast Colorado. A potent QLCS should form along a strengthening cold pool boundary and then follow the theta-e axis to the southeast across the entire forecast area through the late afternoon and early evening hours. Model sounding analysis indicates that the highest threat from these severe thunderstorms will once again be strong to severe thunderstorm wind gusts. Once again, the cold pooling and loss of daytime heating after midnight will lead to clearing and calmer conditions for the late evening and overnight hours. && .LONG TERM /WEDNESDAY THROUGH MONDAY/... Issued at 245 PM MDT Mon Jun 16 2025 A very strong deep layer ridge axis will begin to build into the area on Wednesday and will continue to strengthen and dominate the forecast area through the weekend. The end result will be a much drier and hotter pattern. The heat should peak over the weekend when the ridge and overall subsidence will be greatest across the region. Model temperature spread is fairly low, and there is a high degree of confidence that temperatures will warm into the low to mid 100s this weekend. Monday looks to be a transitional day as the ridge axis begins to pull to the east. Lowering heights and some weak positive vorticity advection in advance of an approaching trough over the Pacific Northwest could weaken the capping inversion just enough to spark off some isolated convection. However, there is still very low confidence in the forecast for Monday, and the rain threat could shift toward later in the week. && .AVIATION /18Z TAFS THROUGH 18Z TUESDAY/... Issued at 1136 AM MDT Mon Jun 16 2025 For KGLD & KMCK... VFR conditions are forecast through the early overnight hours. Winds will remain from the south at 10-15 kts. Around 00Z, some convection could begin to fire up in the vicinity of weak mesolow and attendant dryline and warm frontal boundary. Overall, convective chances are low at around 30 percent, but the threat is high enough to include a PROB30 group at both terminals for 2 to 3 hours. Gusty and erratic winds and IFR visibilities would be the primary concern if a thunderstorm passes near or over one of the terminals. The convective threat should be over by 06z. Once the storms clear, there is the possibility for some lower ceilings between 1000-3000ft closer to the end of the period around 10-15Z. && .FIRE WEATHER... Issued at 245 PM MDT Mon Jun 16 2025 A major pattern shift is expected Tuesday night. But between now and then, we are still expecting warm and relatively moist conditions, minimizing our traditional critical fire weather criteria. Also, this evening and again on Tuesday, we are expecting daily chances at storms, potentially severe, to impact majority of the area. These storms would create gusty, erratic winds, leading to chaotic fire behavior. After Tuesday night, a high pressure system will begin dominating the area. This will lead to a dry, warming trend for the following days. Southerly winds are already forecast to be gusting to around 25-30 MPH for large portions of the area as the RH values drop into the teens. Thursday could see brief critical fire weather conditions in eastern Colorado, but Friday and Saturday have a decent chance at seeing fairly widespread critical fire weather conditions. && .GLD WATCHES/WARNINGS/ADVISORIES... KS...None. CO...None. NE...None. && SHORT TERM...GLD LONG TERM...GLD AVIATION...GLD FIRE WEATHER...GLD
Hazardous Weather Outlook National Weather Service Goodland KS Issued by National Weather Service Dodge City KS 250 PM MDT Mon Jun 16 2025 COZ090>092-KSZ001>004-013>016-027>029-041-042-NEZ079>081-172100- Yuma-Kit Carson-Cheyenne-Rawlins-Decatur-Norton-Sherman-Thomas- Sheridan-Graham-Wallace-Logan-Gove-Greeley-Wichita-Dundy-Hitchcock- Red Willow- 250 PM MDT Mon Jun 16 2025 /350 PM CDT Mon Jun 16 2025/ This hazardous weather outlook is for extreme southwest Nebraska... northwest Kansas and east central Colorado. .DAY ONE...THIS AFTERNOON AND TONIGHT... Another round of strong to severe storms are forecast late This afternoon and may continue overnight into early Tuesday morning. Large to very large hail and damaging winds continue to be main threats although a brief tornado and an instance of flash flooding can't be completely ruled out. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH MONDAY... Tuesday, a large cluster of potentially severe storms is forecast to move across the area during the afternoon and through the evening. Damaging wind gusts look to be the primary hazard with this activity. Friday and Saturday, temperatures and heat indices may warm to around 100-105 degrees. East of U.S. 83 is currently favored for the hottest temperatures and heat index values. These temperatures may lead to heat related illness for those without proper cooling methods and to livestock. Critical fire weather conditions are expected to return to at least eastern Colorado Thursday through Saturday. Ensure any burns that have been done recently are fully extinguished. .SPOTTER INFORMATION STATEMENT... Spotter activation may be required. GLD
The Goodland radar (KGLD), 112 km away, was scanning. The volume nearest the first event began at 22:46 UTC.
3 hail, 1 tornado. Local standard time, as filed.
Numerous reports from the public of a landspout. The landspout was viewable between Flagler and Bethune.
A social media report of 1 inch hail.
A trained spotter reported nickel sized hail and estimated wind gusts around 50 mph.
Nickel hail was reported by a spotter and was accumulating with unknown depth.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Colorado in 2025Every state in 2025This day in weather historyThe tornado archive for Colorado, 2025Warnings in Colorado, June 2025
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: 1273698, 1273707, 1273710, 1273712.