Although much of South Central Nebraska observed showers and thunderstorms on this late Sunday afternoon and evening, severe weather in the form of hail, damaging winds and locally heavy rainfall mainly concentrated within a fairly narrow northwest-to-southeast corridor across western portions of the area. More specifically, severe storms primarily targeted western Sherman County, along with locations roughly 10-15 miles either side of a line extending from near Eddyville-Elm Creek-Franklin. Some of the most noteworthy storm reports included quarter to golf ball size hail in or near Litchfield, a semi-truck blown over on Interstate 80 between Lexington and Overton by estimated 70 MPH winds, quarter to golf ball size hail in northern Phelps County, and estimated 60 MPH winds accompanied by penny size hail southeast of Upland. Although rainfall amounts across most affected areas averaged 1-2 inches at most, parts of Franklin and far western Webster counties received more widespread 2+ inch totals. This resulted in minor flooding along the Thompson Creek near Riverton through the night, with several roads still blocked well into the following day.
Initially, severe storms flared up just west and northwest of South Central Nebraska during the mid-afternoon hours. The first severe storm to enter the local 24-county area was a fairly small, slow-moving supercell that affected mainly the southwestern quadrant of Sherman County between 430-600 pm CDT, dropping large hail in the Litchfield area. As this initial storm was ongoing, a conglomeration of strong to severe multicell storms developed over, or moved into portions of eastern Dawson, western Buffalo and Phelps counties. Mainly between 630-830 pm CDT, several of these storms morphed into a small, forward-propagating mesoscale convective system (MCS) that primarily tracked through Harlan, Franklin and Kearney counties. Meanwhile, farther northwest, a trailing storm briefly took on supercell characteristics in eastern Dawson County and was responsible for blowing the semi-truck over on I-80. By 830 pm CDT, the most intense storms had pushed southward into Kansas, leaving behind lingering, non-severe convection over much of South Central Nebraska through around 11 pm CDT. On the synoptic scale aloft, this event occurred in seasonable quasi-zonal flow containing embedded, low-amplitude shortwave troughs, with Nebraska located slightly south of the strongest upper level flow aligned from the Dakotas to the Great Lakes. At the surface, the primary feature at mid-afternoon was a quasi-stationary front extending from southwest Nebraska to south central Kansas, with South Central Nebraska positioned just northeast of this boundary in a low-level easterly flow regime. Mid-late afternoon mesoscale severe weather parameters over western portions of the local area featured mixed layer CAPE of 1500-2000 J/kg in the presence of 0-6 kilometer deep layer wind shear of 35-45 knots.

Hail in SHERMAN, NEBRASKA
From 16-JUN-13 16:36:00 to 16-JUN-13 16:36:00 (CST-6)
Location: LITCHFIELD
Magnitude: 1.75 
Property damage: 15.00K
Crop damage: 250.00K
Reported by: Fire Department/Rescue

Golf ball sized hail fell one mile north of Litchfield.

Hail in PHELPS, NEBRASKA
From 16-JUN-13 17:25:00 to 16-JUN-13 17:25:00 (CST-6)
Location: HOLDREGE
Magnitude: 1.75 
Property damage: 25.00K
Crop damage: 250.00K
Reported by: Emergency Manager

The time is estimated from radar data. The report was relayed from trained spotters.

Hail in DAWSON, NEBRASKA
From 16-JUN-13 18:03:00 to 16-JUN-13 18:10:00 (CST-6)
Location: OVERTON
Magnitude: 1.75 
Property damage: 250.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Golf ball size hail fell in Overton.

Thunderstorm Wind in FRANKLIN, NEBRASKA
From 16-JUN-13 18:45:00 to 16-JUN-13 18:45:00 (CST-6)
Location: UPLAND
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 1.00M
Reported by: Trained Spotter

Hail the size of pennies was also observed.

Flood in FRANKLIN, NEBRASKA
From 16-JUN-13 19:00:00 to 17-JUN-13 10:00:00 (CST-6)
Location: RIVERTON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Heavy rain overflowed Thompson Creek during the night and resulted in several rural road blockages well into the morning hours, including near 41 1/2 and J Roads.

Hail in SHERMAN, NEBRASKA
From 16-JUN-13 16:33:00 to 16-JUN-13 16:33:00 (CST-6)
Location: LITCHFIELD
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Quarter sized fail was reported in Litchfield.

Hail in PHELPS, NEBRASKA
From 16-JUN-13 17:20:00 to 16-JUN-13 17:20:00 (CST-6)
Location: HOLDREGE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Quarter sized hail occurred 6 miles south of Elm Creek. Wind gusted to 50 mph with heavy rain also occurring.

Hail in KEARNEY, NEBRASKA
From 16-JUN-13 17:52:00 to 16-JUN-13 17:52:00 (CST-6)
Location: AXTELL
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Wind gusts of 50 mph and heavy rain also occurred.

Hail in PHELPS, NEBRASKA
From 16-JUN-13 18:25:00 to 16-JUN-13 18:25:00 (CST-6)
Location: HOLDREGE
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

The combination of nickel sized hail and 50 mph wind gusts caused crop damage.

Hail in PHELPS, NEBRASKA
From 16-JUN-13 17:45:00 to 16-JUN-13 17:45:00 (CST-6)
Location: FUNK
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in DAWSON, NEBRASKA
From 16-JUN-13 18:15:00 to 16-JUN-13 18:15:00 (CST-6)
Location: OVERTON
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Dime to nickel sized hail was reported. This report was courtesy of a Nebraska Rainfall Assessment and Information Network Observer.

Hail in SHERMAN, NEBRASKA
From 16-JUN-13 16:21:00 to 16-JUN-13 16:21:00 (CST-6)
Location: LITCHFIELD
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Nickel to quarter sized hail was reported.

Hail in SHERMAN, NEBRASKA
From 16-JUN-13 16:30:00 to 16-JUN-13 16:30:00 (CST-6)
Location: LITCHFIELD
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

This report was from a social media post and the time was estimated from radar data. The quarter sized hail occurred in Litchfield.

Thunderstorm Wind in DAWSON, NEBRASKA
From 16-JUN-13 18:03:00 to 16-JUN-13 18:03:00 (CST-6)
Location: OVERTON
Magnitude: 61.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A semi-tractor trailer was blown over at mile marker 243 on Interstate 80 west of Overton, roughly halfway between the Lexington and Overton exits.