Thunderstorms produced torrential rainfall that led to flash flooding from the evening of July 6 into the morning of July 7 in parts of the panhandle as well as central 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.
Thunderstorms produced torrential rainfall that led to flash flooding from the evening of July 6 into the morning of July 7 in parts of the panhandle as well as central Nebraska.
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 Jul 6, 4:43 PM MST, 1 hour 41 minutes earlier.
Area Forecast Discussion National Weather Service North Platte NE 643 PM CDT Wed Jul 6 2022 .SHORT TERM...(This evening through Thursday night) Issued at 307 PM CDT Wed Jul 6 2022 Main forecast concerns focus on thunderstorm develop later this afternoon and overnight into Thursday with locally heavy rainfall likely. Aloft, modest ridging centered over Missouri has slight southwest flow locally. A shortwave trough was tracking overtop this feature and tracking through the area which was helping drive scattered showers and thunderstorms across the higher terrain to the west. Much of this activity will track into the area tonight. Tonight...Expecting thunderstorm coverage to increase markedly. This will likely occur as the previously mentioned shortwave trough skirts the area to the northwest. A plume of rich low-level moisture will reside across much of the High Plains and as surface temperatures climb into the middle 80s, modest instability will develop across western Nebraska. Limiting this, however, will be weak mid-level lapse rates. This is likely due to the presence of a sub-tropical airmass with PWAT values exceeding 1.5". Morning soundings depicted a deep moisture plume already in place with PWAT values nearing the 90th percentile of climatology. Forecast soundings this evening depict skinny CAPE through the profile. Warm cloud depth will exceeding 3000m across much of the area so expecting copious warm rain processes. Storm motion will be slow, given h5 flow in the 10 to 20 knot range and storm motion vectors showing similar magnitudes. All this translates to slow, heavy rain produces. Limiting confidence in any flooding concerns will be relatively high FFG values and lack of a focus for training storms. Believe potential exists for seeing widespread 1-2" with highly localized 2.5"+ rainfall reports stretching from southwest through central Nebraska, especially in the vicinity of a strengthening LLJ this evening which should lead to increasing activity late tonight into early Thursday morning. Regarding the severe threat, thinking the weak lapse rates and high RH in the lowest 0-3km layer, thinking cold pool development will be greatly limited and updrafts not likely to produce large hail. Can't rule out some sub-severe hail and perhaps an isolated 1" stone, but thinking this is fairly unlikely. Thursday...expecting once morning activity departs we should see generally quiet conditions in its wake for the afternoon. Mid-level height rises will be quick to build in from the west. Did increase afternoon highs slightly given expected clearing skies from west to east but still expecting values to be limited to the low 80s east to upper 80s west. Will watch as High Plains convection will develop and attempt to move into our far western zones late in the afternoon and evening hours. Agree with SPC opting to leave this area within the Day 2 Marginal SWO to account for this. Deep layer shear will be modest but stronger MLCAPE is expected to develop as lapse rates steepen so can't rule out some large hail and damaging wind gusts out of this activity. .LONG TERM...(Friday through Wednesday) Issued at 307 PM CDT Wed Jul 6 2022 Beginning 12z Friday...mid-level ridging will begin to inch into the area with increasing height rises through the day Friday. Surface high pressure will settle into the northern Mississippi Valley by late in the day. With a compressed pressure gradient locally, will see gradually increasing winds late in the day. The increased southeasterly surface flow should allow dew points to remain steady in the low 60s with afternoon highs climbing into the middle 80s to low 90s. The warm and humid conditions would foster a fairly unstable environment with potential for late day thunderstorms. Indeed, thunderstorm development will be possible in the evening as low-level convergence increases invof the Black Hills. Though capping decreases late in the day, the inversion never fully erodes and this will likely keep activity isolated. The pre-convective environment would support isolated severe...MLCAPE nearing 2000 j/kg, mid-level lapse rates in excess of 7.5 C/km, 0-6km BWD magnitudes exceeding 30 knots...so will need to monitor potential for strong to severe thunderstorms. Storm motion would likely limit overall spatial coverage with north-northwest to south-southeast tracks. That in addition to increasing capping and lack of sustained low-level lift should allow activity to weaken quick. Area of greatest concern will likely be west of Highway 61 and north of Interstate 80. Saturday/Sunday...Upstream shortwave trough will begin the climb up and over upper-level high which will gradually flatten the flow through the day. Modest surface low pressure will develop over western South Dakota/eastern Wyoming by late in the day. This will only further increase low-level kinematics and lead to a breezy day. With the belt of stronger h85 flow overhead, will see gusts approaching 25 to 30 mph out of the south. Though modest height falls will move in late in the day, greatest upper-level support will remain north of the area. This should keep the focus for rain and thunderstorm activity out of the area and the daytime dry for Saturday. Temperatures will moderate quickly with highs pushing the upper 80s and 90s for Saturday but increase quickly to 90s to low 100s for Sunday. Trailing cool front from aforementioned surface low will move through the area in the afternoon on Sunday. This should lead to rain and thunderstorm development during the late afternoon and evening. Post-frontal precipitation will likely linger late into the overnight as surface high pressure moves in from the northwest. Eventually, low-level moisture will scour out and end precipitation chances by early Monday. Monday and beyond...incoming high pressure will bring temperatures down a notch for early next week with highs only reaching the upper 80s to low 90s. Even these values are still near to above normal for mid July standards. Forecast certainty drops off quickly after Monday. Differing evolution of upstream ridging and placement of troughing across the northeast will have large implications on strength and positioning of key surface features, most notably high pressure. This in turn affects return to southerly low-level flow and how quickly temperatures climb back above normal. Model blend outlook shows large spreads in daytime highs with 15 and 22 degree variations between the 10th and 90th percentile values for Wednesday and Thursday respectively. Overall, with general northwesterly flow expected to solidify around the middle of next week we likely won't see any big systems bringing abundant precipitation chances to the area and generally only glancing blows of more small scale systems which will be spotty at best with precipitation chances. The latest CPC outlooks line up fairly well with this pattern and favor more dry than not as highlighted by their 8-14 day product. && .AVIATION...(For the 00Z TAFS through 00Z Thursday evening) Issued at 635 PM CDT Wed Jul 6 2022 There will be isolated to scattered thunderstorms this evening into tonight across north central, western and southwest Nebraska. Thunderstorms have the potential for very heavy rainfall, which could create periods of MVFR or lower visibility conditions. Ceilings are expected to lower after midnight with MVFR conditions possible across portions of southwest into central Nebraska, including KLBF. && .LBF WATCHES/WARNINGS/ADVISORIES... None. && SHORT TERM...NMJ LONG TERM...NMJ AVIATION...Gomez
Hazardous Weather Outlook National Weather Service North Platte NE 317 PM CDT Wed Jul 6 2022 NEZ004>010-022>029-035>038-056>059-069>071-094-072030- 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- 317 PM CDT Wed Jul 6 2022 /217 PM MDT Wed Jul 6 2022/ This Hazardous Weather Outlook is for portions of western and north central Nebraska. .DAY ONE...TONIGHT. Isolated to scattered thunderstorms will affect portions of western and north central Nebraska through tonight. Some storms may produce strong wind gusts and torrential rain, while hail is also possible. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY. Scattered storm chances continue through Thursday then decrease during the weekend. A localized strong or severe storm will remain possible on Thursday. .SPOTTER INFORMATION STATEMENT... Storm spotter activation will probably not be needed tonight. However, please relay any adverse weather reports and rainfall amounts to the National Weather Service in North Platte. && Get your weather, hydrological, and climate information at http://www.weather.gov/northplatte
Special Weather Statement
National Weather Service North Platte NE
603 PM MDT Wed Jul 6 2022
NEZ004-070045-
Sheridan NE-
603 PM MDT Wed Jul 6 2022
...Strong thunderstorms will impact portions of northeastern Sheridan
County through 645 PM MDT...
At 602 PM MDT, Doppler radar was tracking strong thunderstorms along
a line extending from 9 miles east of White Clay to 7 miles west of
Gordon to 8 miles east of Rushville. Movement was west at 5 mph.
HAZARD...Very heavy rainfall, winds in excess of 40 mph, and penny
size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible.
Locations impacted include...
Gordon, Rushville, Clinton, Intersection of Highway 87 and Craven
Creek Road, Lone Butte, Highway 27 crossing the Niobrara River, Mount
Maria, Intersection of Highway 27 and Mills Road and Pine Ridge.
This includes the following highways...
Highway 20 between mile markers 90 and 105.
Highway 250 between mile markers 40 and 48.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
Torrential rainfall is also occurring with these storms and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
&&
LAT...LON 4300 10226 4260 10218 4256 10245 4300 10256
TIME...MOT...LOC 0002Z 086DEG 6KT 4296 10239 4280 10235 4267 10231
MAX HAIL SIZE...0.75 IN
MAX WIND GUST...40 MPH
SporerThe Rapid City radar (KUDX), 158 km away, was scanning. The volume nearest the first event began at 01:23 UTC.
3 flash flood, 1 flood. Local standard time, as filed.
Law enforcement reported flooding over Highway 20 near mile markers 95 and 96. Department of Transportation was in the process of barricading the highway.
One to two feet of water was reported on Highway 20 near Clinton.
Emergency management reported a washout near the intersection of roads 189 and 82 due to flooding.
Emergency management reported six inches of water over Highway 183 at Sargent due to heavy rain.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Nebraska in 2022Every state in 2022This day in weather historyWarnings in Nebraska, July 2022
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: 1041216, 1041217, 1041218, 1041219.