Within South Central Nebraska, verified severe weather (in the form of hail up to golf ball size) was solely confined to Furnas County on this late Monday afternoon and evening, but it was a noteworthy situation as nearly the exact same localized area remained under a perpetual Severe Thunderstorm Warning (actually six separate/consecutive warnings) for more than 3.5 hours from 5:49 p.m. to 9:30 p.m. CDT! This resulted from a quasi-stationary, multicell storm cluster remaining anchored over the Furnas/Red Willow County line...just as one storm core would weaken or start to drift slightly to the east, another would pop up and take its place. At long last, possibly in response to a loss of daytime heating, this storm cluster started weakening and drifting east after 9 p.m. CDT, finally dissipating for good in southeastern Furnas County around 11 p.m. CDT. The vast majority of this activity concentrated in the far northwestern and west central part of the county, from around Cambridge southward through rural areas northwest of Wilsonville. In this area, there were several reports of penny to half dollar size hail in and very near Cambridge, with golf ball size stones falling several miles south of town. Not surprisingly given the persistent storm generation, radar rainfall estimates in far west-central Furnas County spiked to at least 3-4 inches. However, there were no ground-truth reports of extremely heavy rain or flash flooding from this bullseye, and official reports from Cambridge itself yielded less than 2 with only minor road flooding.
In the wake of the Furnas County activity, the late evening and overnight hours featured a completely separate and more widespread area of occasionally-strong storms primarily within the far northern and eastern reaches of South Central Nebraska. This nocturnal activity, which really got going between 11 p.m. and 1 a.m. CDT, actually persisted all night and into the next morning in some weakened form before finally exiting the Thayer County area around 10 a.m. CDT on the 2nd. Although radar indicated some potential for hail with a few of these overnight storms, heavy rain was the main feature as a good chunk of counties such as Greeley/Nance/Polk measured at least 1-2 and locally higher (including 2.90 south of Spalding). However, like the earlier Furnas County storms, there were no reports of significant flooding.
In the mid-upper levels, this was a pretty typical and weakly-forced mid-summer event as South Central Nebraska resided under fairly weak quasi-zonal flow between ridging over the southern CONUS and a potent shortwave trough well to the north over south central Canada. The Furnas County severe storms likely initiated from the combination of a subtle mid-level wave and intense heating/weak convergence along a surface trough aligned from western KS into central NE. With temperatures in the Furnas County area reaching the mid-upper 90s F and dewpoints in the low-mid 60s, convection was able to overcome warm mid level temperatures and become severe in an environment characterized by mixed-layer CAPE of at least 2000 J/kg but only around 30 knots of deep-layer wind shear. Later in the night, the uptick in nocturnal convection occurred in classic fashion near the nose of a 30-40 knot low-level jet evident around 850 millibars.

Hail in FURNAS, NEBRASKA
From 01-AUG-16 17:00:00 to 01-AUG-16 17:00:00 (CST-6)
Location: CAMBRIDGE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in FURNAS, NEBRASKA
From 01-AUG-16 18:45:00 to 01-AUG-16 18:45:00 (CST-6)
Location: CAMBRIDGE
Magnitude: 1.75 
Property damage: 25.00K
Crop damage: 250.00K
Reported by: Trained Spotter

Quarter sized hail fell along with a few golf ball size stones mixed in. Roads were also covered in hail on the south side of Cambridge as heavy rain occurred. Some roads in town were having flooding issues.

Hail in FURNAS, NEBRASKA
From 01-AUG-16 18:28:00 to 01-AUG-16 18:28:00 (CST-6)
Location: WILSONVILLE
Magnitude: 1.75 
Property damage: 25.00K
Crop damage: 250.00K
Reported by: Trained Spotter

Golf ball sized hail was falling along Highway 47, about 7 miles south of Cambridge.

Hail in FURNAS, NEBRASKA
From 01-AUG-16 17:36:00 to 01-AUG-16 17:36:00 (CST-6)
Location: CAMBRIDGE
Magnitude: 1.25 
Property damage: 10.00K
Crop damage: 100.00K
Reported by: Trained Spotter

Mostly quarter sized hail occurred with a few hail stones the size of half dollars mixed in. Heavy rain occurred with wind gusting at 35 to 45 mph. Ponding across roads was occurring from the heavy rain.

Hail in FURNAS, NEBRASKA
From 01-AUG-16 17:22:00 to 01-AUG-16 17:22:00 (CST-6)
Location: CAMBRIDGE
Magnitude: 1.00 
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Estimated wind gusts of 55 to 60  mph also occurred with quarter size hail and heavy rain. Water was over some county roads west of town.