Early on the morning of June 30, a thunderstorm produced strong winds that did significant damage to a tree near Olathe, Kansas.
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The episode as NWS EAX wrote it up.
Early on the morning of June 30, a thunderstorm produced strong winds that did significant damage to a tree near Olathe, Kansas.
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 Jun 30, 2:44 AM CST, 1 hour 16 minutes earlier.
Area Forecast Discussion National Weather Service Kansas City/Pleasant Hill MO 344 AM CDT THU JUN 30 2016 .Short Term...(Today and Tonight) Issued at 344 AM CDT THU JUN 30 2016 Low level ridging has built into AR and ERN TX creating a weak low level jet at 925hPa, which extends from NRN TX up into WRN MO. This is producing isentropic accent in the lower levels, 900-800hPa, in two distinct areas of the CWA, the W and NE portions. These boundaries are visible on the 305K surface and slowly progress to the east weakening with daytime heating. This accent coupled with some weak CAPE have produced scattered thunderstorms over the region, but low CAPE values have kept everything sub-severe. The PoPs have been adjusted to account for this non-severe nocturnal convection. A cold front extending through central MN will advect southward to lie just north of the CWA Thursday afternoon into the evening. This will produce added forcing for afternoon convection over most of the CWA. A MCV associated with the MCS over Nebraska currently, also moves over the CWA with similar timing to the cold front providing even more dynamics to develop scattered thunderstorms through through Thursday night. With surface based CAPE near 1500 J/kg and 0-6km shear of 30kts there is a chance for these storms to become severe with the main impacts being large hail and strong winds. .Long Term...(Friday through Wednesday) Issued at 344 AM CDT THU JUN 30 2016 Confidence continues to increase on a potentially serious heavy rain/flash flood threat Saturday and Sunday with the possibility that several areas could see 3 to 5 inches of rain, possibly even more. This is particularly concerning given the holiday weekend and the numerous outdoor activities that will be going on. Meteorologically speaking, all models continue to point to nearly perfect conditions coming together for a widespread heavy rain/flood event: A strong low-level jet feeding abnormally high moisture into a quasi-stationary boundary, a plume of deep tropical moisture off the Pacific, persistent synoptic-scale ascent within the right- entrance region of an upper jet, boundary-parallel storm motion giving the potential for training storms, and tropical-like precipitation efficiency with very high precipitable water, tall/thin CAPE profiles and deep warm cloud layer depth. Given these factors it is not surprising that models have been consistently producing an east-west oriented swath of 4 to 7 inch rainfall across parts of Kansas and Missouri which would lead to numerous flooding problems. The only factor acting against flooding is the recent dry spell, but Saturday's rains alone could easily saturate soils leading to excessive runoff conditions by Sunday. The main question now is exactly where this heavy rain axis sets up, with models continuing to fluctuate between the I-70 corridor and the Missouri/Iowa border, and some indications that it could even go back further south. Despite the lingering uncertainty as to where the highest amounts will fall, the potential severity of this rainfall event over a holiday weekend when many people will be outside (camping trips etc) warrants an extra heads up for planning purposes. Therefore we will go ahead with an early flash flood watch beginning Friday night and continuing through early Monday. For now the watch excludes far northern and southern portions of the forecast area since these areas are more questionable to see the heaviest rains given the model fluctuations. Future trends will be assessed to see if any of these counties need to be added. By Monday a deepening low riding along the boundary should be passing east of the area, with lingering rain chances Monday morning over central MO and drying conditions further west. This will leave Monday as the only potentially salvageable day for any outdoor activities over the holiday weekend. However, with quazi-zonal upper flow continuing into the middle of next week, precipitation chances could return to the area as early as Tuesday and Tuesday night. Height rises next week will also bring a return to heat with highs in the 90s by Wednesday, likely accompanied by high humidity after this weekend's rain. && .Aviation...(For the 06Z TAFS through 06Z Thursday Night) Issued at 1156 PM CDT WED JUN 29 2016 Vast majority of the time expect VFR conditions. Isolated to widely scattered elevated convection with ceilings aoa 8k ft possible over most of the region overnight. No boundaries to focus on so hit and miss type convection. Convective complex streaking southeast through central and northeast NE is expected to weaken considerably overnight possibly reaching northwest MO towards daybreak. Isolated convection possible during afternoon while scattered convection expected to form along a cold front as it enters northern MO around 00Z. This boundary will push south during the evening hours with convection remaining tied to it. MVFR ceilings possible with the stronger storms. && .EAX Watches/Warnings/Advisories... KS...None. MO...None. && Short Term...Barham Long Term...Hawblitzel Aviation...MJ
The Pleasant Hill radar (KEAX), 51 km away, was scanning. The volume nearest the first event began at 10:00 UTC.
1 thunderstorm wind. Local standard time, as filed.
On third of a healthy maple tree snapped and fell onto a neighboring fence. The diameter of the tree was between 10 and 12 inches.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Kansas in 2016Every state in 2016This day in weather historyWarnings in Kansas, June 2016
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: 644727.