During the early morning hours of May 26th, very heavy rain fell across southern portions of Chase and Hayes counties in southwestern Nebraska. The heavy rainfall led to flash flooding over southern Chase and southern Hayes counties in Nebraska.
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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 LBF wrote it up.
During the early morning hours of May 26th, very heavy rain fell across southern portions of Chase and Hayes counties in southwestern Nebraska. The heavy rainfall led to flash flooding over southern Chase and southern Hayes counties in Nebraska. Highway 6 and highway 61 were closed in southeastern Chase County due to water covering the roadway. Highway 25 and highway 6 was also closed in southern Hayes County due to flooding.
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 North Platte, NE wrote its last area forecast discussion before the first event at May 26, 1:40 AM MST, 1 hour 20 minutes earlier.
Area Forecast Discussion National Weather Service North Platte NE 340 AM CDT Fri May 26 2023 .SYNOPSIS... Issued at 340 AM CDT Fri May 26 2023 Key Messages: - Locally heavy rainfall will continue through mid morning for areas near and south of I80 with localized flooding possible. - Daily chances for showers and thunderstorms are forecast through Thursday of next week. SYNOPSIS... A mesoscale convective vortex (MCV) is currently located over far southwest Nebraska. Meanwhile a mid level disturbance continues to lift northeast from near Scottsbluff through Atwood Kansas. This is resulting in some excessive rainfall across Dundy and Chase County. As these features continue to lift northeast, locally heavy rainfall will continue for areas near and south of I80 through mid morning. && .SHORT TERM...(Today through Saturday) Issued at 340 AM CDT Fri May 26 2023 Locally heavy rainfall is underway across portions of southwest into west central Nebraska this morning with likely POPS. Due to the slow movement of the MCV and mid level disturbance, rainfall amounts from a quarter to half inch should be fairly widespread, with locally heavy rainfall from a inch or more possible. Areas east of Highway 183 are expected to remain mostly dry today. Breezy south southeast winds today with mainly cloudy skies. Highs will be coolest across the southwest and western Sandhills near 70 where cloudy skies and showers and a few thunderstorms will be the more persistent. Tonight through Saturday, an upper trough will remain in place across the Great Basin in the western U.S. as blocking upper ridge remains in place across the Great Lakes and Midwest. Southwest flow aloft will exist from the Front Range and High Plains. The 00Z CAMs forecast thunderstorms to develop along the Front Range of Wyoming and Colorado early this afternoon and will move eastward into the western panhandle and northeast Colorado by early evening. This activity is forecast to move into western Nebraska this evening and eventually weaken as they reach Highway 83 by midnight. Areas near and east of Highway 183 should once again remain dry. A marginal risk for excessive rainfall is forecast across the western Sandhills and Southwest. This will be dependent on how well the evening convection holds together. While lingering showers are possible across the west Saturday morning. Due to PWATS remaining near an inch, and mid level lapse rates near 7C/KM, afternoon development of isolated to scattered showers or storms is possible. Highs Saturday will be slightly warmer from near 75 to 80. Windy with a south southeast wind 20 to 30 mph. .LONG TERM...(Saturday night through Thursday) Issued at 340 AM CDT Fri May 26 2023 For the remainder of Memorial Day weekend, the Gulf moisture axis will remain in place across the Central High Plains...with PWATS from 1 to 1.20 inches through Sunday evening). Likely POPs across the west and southwest Saturday night, will mainly a slight chance Sunday morning, followed by a 30 to 50 percent chance Sunday afternoon and evening as a mid and upper level trough lifts through the Northern and Central Plains. There is a marginal Risk for severe storms Sunday afternoon and evening west of Highway 183. Memorial Day through Thursday of next week, an upper trough will continue to persist across the Western U.S. as the upper ridge becomes better established across the Central and Eastern U.S. With deep moisture still available across the Plains, daily chances for afternoon and evening thunderstorm. Highs in the low 80s Memorial Day (Monday) should warm into the mid 80s by Tuesday and Wednesday of next week. The threat for any severe storms should remain low, with heavy rain to main concern. && .AVIATION...(For the 06Z TAFS through 06Z Friday night) Issued at 107 AM CDT Fri May 26 2023 Scattered showers and embedded thunderstorms across southwest Nebraska will become more numerous over the next several hours. Majority of precipitation will remain across southwest Nebraska, impacting KLBF with periods of heavy rainfall, lightning, and reductions in visibility. KVTN may see an isolated shower or thunderstorm late this afternoon, but any impacts should be minimal. && .LBF WATCHES/WARNINGS/ADVISORIES... NONE. && SYNOPSIS...Roberg SHORT TERM...Roberg LONG TERM...Roberg AVIATION...Kulik
Hazardous Weather Outlook National Weather Service North Platte NE 434 AM CDT Fri May 26 2023 NEZ004>010-022>029-035>038-056>059-069>071-094-270945- Sheridan-Eastern Cherry-Keya Paha-Boyd-Brown-Rock-Holt-Garden-Grant- Hooker-Thomas-Blaine-Loup-Garfield-Wheeler-Arthur-McPherson-Logan- Custer-Deuel-Keith-Perkins-Lincoln-Chase-Hayes-Frontier- Western Cherry- 434 AM CDT Fri May 26 2023 /334 AM MDT Fri May 26 2023/ This Hazardous Weather Outlook is for portions of western and north central Nebraska. .DAY ONE...Today and tonight. Scattered showers and thunderstorms across southwestern into central Nebraska are expected through today. Isolated showers and a low threat of severe thunderstorms are possible across north central Nebraska through the evening hours. .DAYS TWO THROUGH SEVEN...Saturday through Thursday. Periodic showers and thunderstorms are expected through early next week with near daily rain chances. Some storms may be capable of producing locally heavy rainfall through Sunday. The severe threat remains low across much of the area with increased potential across the Panhandle. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
The Goodland radar (KGLD), 126 km away, was scanning. The volume nearest the first event began at 09:59 UTC.
5 flash flood, 2 flood. Local standard time, as filed.
Highway 6 southeast of Imperial is closed with water over the roadway.
Highway 6 near Hamlet is closed due to water over the roadway.
Motorist stranded on Highway 6 due to high water over the roadway.
Several campers reported stranded due to high water from flash flooding.
Highway 61 south of US Highway 6 is closed due to flash flooding.
Highway 25A between Palisade and Highway 25 is closed due to flooding.
The city park and pool is flooded on the north side of Palisade.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Nebraska in 2023Every state in 2023This day in weather historyWarnings in Nebraska, May 2023
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: 1099840, 1099841, 1099835, 1099836, 1099837, 1099838, 1099839.