Thunderstorms developed along a stationary boundary near the Kansas and Nebraska border on the afternoon of May 27th. Due to high amounts of instability and shear in the atmosphere these thunderstorms quickly became severe. The thunderstorms moved east over southern Nebraska, moving into southeast Nebraska by early evening. Although other isolated severe weather was reported, one particular storm moving through Jefferson and Gage Counties produced the majority of the severe weather. The storm complex exited southeast Nebraska prior to midnight producing severe weather around the Falls City Nebraska area.

Thunderstorm Wind in GAGE, NEBRASKA
From 27-MAY-13 20:18:00 to 27-MAY-13 20:18:00 (CST-6)
Location: BEATRICE
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

The public reported winds gusts to near 60 mph in the city of Beatrice. This resulted in downed tree branches in the city of Beatrice.

Thunderstorm Wind in SALINE, NEBRASKA
From 27-MAY-13 19:22:00 to 27-MAY-13 19:22:00 (CST-6)
Location: TOBIAS
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Winds estimated to 70 mph downed several power poles.

Thunderstorm Wind in RICHARDSON, NEBRASKA
From 27-MAY-13 22:03:00 to 27-MAY-13 22:03:00 (CST-6)
Location: FALLS CITY
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

A wind gust to 58 mph was measured by the Falls City ASOS equipment.

Thunderstorm Wind in RICHARDSON, NEBRASKA
From 27-MAY-13 22:00:00 to 27-MAY-13 22:00:00 (CST-6)
Location: SHUBERT
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Power lines were reported downed by strong thunderstorm winds.

Tornado in GAGE, NEBRASKA
From 27-MAY-13 20:16:00 to 27-MAY-13 20:20:00 (CST-6)
Location: BEATRICE
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A NWS storm survey revealed a weak tornado developed about 2 miles southwest of Beatrice and traveled northeast for just over a mile before dissipating. The tornado was weak producing damage consistent with EF0 consisting of broken hardwood tree branches and minor damage to outbuildings.

Tornado in JEFFERSON, NEBRASKA
From 27-MAY-13 19:51:00 to 27-MAY-13 19:56:00 (CST-6)
Location: SHEA
Tornado F-scale: EF0
Property damage: 0.00K
Reported by: NWS Storm Survey

A tornado developed near 6 miles east of Fairbury and traveled just over 3 miles in an east northeast direction ending just over 2 miles south southeast of Harbine. The tornado damage was generally minor including overturned center pivot irrigation systems, tree damage, and farm outbuildings.

Flash Flood in GAGE, NEBRASKA
From 27-MAY-13 21:41:00 to 27-MAY-13 22:41:00 (CST-6)
Location: BEATRICE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Heavy thunderstorm rains of 2 to 3 inches fell across the city of Beatrice. This led to several intersections in the city to become flooded.

Tornado in JEFFERSON, NEBRASKA
From 27-MAY-13 20:02:00 to 27-MAY-13 20:06:00 (CST-6)
Location: HARBINE
Tornado F-scale: EF2
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A NWS storm survey indicated that a tornado developed approximately 2 miles south of Harbine. The tornado traveled in an east northeast direction impacting several farmsteads in Jefferson County. There was minor damage to 4 houses, and 5 out buildings were damaged beyond repair. Other damage included over-turned center pivots and tree damage. Approximately 2 miles east southeast of Harbine the tornado produced damage consistent with a weak EF2 tornado on the Enhanced Fujita Scale. Here a large recently well-built metal outbuildings were destroyed, minor damage was done to a home, and 2X4 boards were driven into the ground.

Flash Flood in JEFFERSON, NEBRASKA
From 27-MAY-13 20:30:00 to 27-MAY-13 21:43:00 (CST-6)
Location: FAIRBURY
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Repeated heavy rainfall from thunderstorms produced 2 to 3 inches of rainfall in the Fairbury area leading to flash flooding in the city. Several intersections were flooded in town.

Flash Flood in GAGE, NEBRASKA
From 27-MAY-13 21:43:00 to 27-MAY-13 22:43:00 (CST-6)
Location: CORTLAND
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Heavy thunderstorm rains of 2 to 3 inches fell across the city of Cortland in a short time leading to flash flooding. Water covered highway 77 in Cortland.