For the fourth consecutive night, this time from the late evening of Friday the 5th into the early morning of Saturday the 6th, most of South Central Nebraska saw a fairly widespread coverage of thunderstorms. However, compared to the preceding two nights, rainfall across the vast majority of the area was held down in the 0.50-1.50 range, as opposed to concentrated, multiple-county swaths of 3+ inch totals. In addition, severe weather was held to a minimum with only a few marginally severe wind reports. Unfortunately, for counties such as Clay, Fillmore, York, Nuckolls, Thayer, northern Adams, southern Hall and southern Hamilton that had already received 3-7 of rainfall the past few days, these lesser additional totals were not welcomed. However, because fairly widespread flooding had already been set in motion from these preceding rains, especially within the West Fork Big Blue River basin, most of the damage had already been done anyway. Therefore, additional impacts from rains on this night were relatively minimal (please refer to the June 4th p.m.-June 5th a.m. episode narrative for much more detail regarding multiple days of flooding along the West Fork Big Blue River). Outside of the primary area already experiencing flooding, this night featured one localized pocket of heavy rain centered over the southwestern quadrant of Webster County, where radar estimation suggested that as much as 2-3 fell in a short time primarily between 11 p.m.-1 a.m. CDT.
In the severe weather department, the only ground-truth reports in the local 24-county area consisted of a pair of estimated 60 MPH wind gusts in northwestern Furnas County between midnight-1 a.m. CDT. This was a result of one storm, embedded within a larger shield of rain, briefly intensifying as it swept into the local area from southwest Nebraska. Otherwise, the majority of convective activity during the night developed out ahead of the incoming southwest Nebraska complex, as numerous multicell storms blossomed across the heart of South Central Nebraska during the 10 p.m.-midnight CDT time frame, before heading east and expanding into a larger complex through the rest of the night. Finally, between 7-9 a.m. on the 6th, the last storms of the morning departed far northeast local counties such as Nance/Polk. Turning to the synoptic and mesoscale situation: the overall large-scale scenario remained fairly similar to the preceding few nights of active weather. This meant that a series of low-amplitude disturbances continued passing through the Central Plains in west-southwest flow aloft, well-downstream from the primary upper trough hanging back well to the west over the California-Nevada border area. At the surface, a subtle warm front lifted north through Nebraska during the night. Although not quite as pronounced as the previous few nights, the nocturnal increase in convection over South Central Nebraska was again aided by enhanced convergence/lift within the axis of a 20-30 knot southerly low level jet. Around the time of the Furnas County severe wind reports, the mesoscale environment featured approximately 1000 J/kg most-unstable CAPE and only around 30 knots of 0-6 kilometer deep-layer wind shear.

Thunderstorm Wind in FURNAS, NEBRASKA
From 05-JUN-15 23:20:00 to 05-JUN-15 23:20:00 (CST-6)
Location: CAMBRIDGE
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Wind gusts were at least 60 mph.

Thunderstorm Wind in FURNAS, NEBRASKA
From 05-JUN-15 23:40:00 to 05-JUN-15 23:40:00 (CST-6)
Location: HOLBROOK
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Wind gusts up to 60 mph were reported.