A surface low pressure area in southeast South Dakota with a warm front extending to the southeast pushed north and brought numerous severe thunderstorms to parts of central and northeast South Dakota.  Large hail, damaging winds, flash flooding, along with several tornadoes occurred with these storms.

Flash Flood in DAY, SOUTH DAKOTA
From 19-JUN-14 05:55:00 to 19-JUN-14 08:30:00 (CST-6)
Location: ROSLYN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Very heavy rains of over 4 inches brought water over several roads southwest of Roslyn.

Funnel Cloud in HAND, SOUTH DAKOTA
From 18-JUN-14 17:02:00 to 18-JUN-14 17:03:00 (CST-6)
Location: DANFORTH
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in SULLY, SOUTH DAKOTA
From 18-JUN-14 03:10:00 to 18-JUN-14 03:10:00 (CST-6)
Location: GALLAGHER
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in SULLY, SOUTH DAKOTA
From 18-JUN-14 03:50:00 to 18-JUN-14 03:50:00 (CST-6)
Location: GALLAGHER
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in STANLEY, SOUTH DAKOTA
From 18-JUN-14 06:30:00 to 18-JUN-14 06:30:00 (MST-7)
Location: ORTON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Flash Flood in CORSON, SOUTH DAKOTA
From 18-JUN-14 13:15:00 to 18-JUN-14 16:15:00 (MST-7)
Location: BLACK HORSE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Very heavy rains of 3 to 4 inches resulted in flash flooding with a man made dam washed out.  Also, the yard was flooded at a residence with water pouring into the basement.

Flash Flood in CAMPBELL, SOUTH DAKOTA
From 18-JUN-14 17:00:00 to 18-JUN-14 20:00:00 (CST-6)
Location: HERREID
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Two inches of rain in less than 30 minutes brought flash flooding with water in several outbuildings along with water flowing into the basement of the house.

Flash Flood in ROBERTS, SOUTH DAKOTA
From 18-JUN-14 23:33:00 to 19-JUN-14 05:00:00 (CST-6)
Location: SISSETON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Very heavy rains of over 4 inches brought water over some turn lanes on Highway 10 through Sisseton. There was also a lot of standing water in the parking lot and up to the restaurant at the edge of town with the creek near its banks.

Flash Flood in GRANT, SOUTH DAKOTA
From 19-JUN-14 03:00:00 to 19-JUN-14 06:00:00 (CST-6)
Location: MILBANK
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Numerous county roads were over topped around Milbank along with a few culverts being washed out. A quick 2 to 3 inches of rain brought on the flash flooding.

Hail in DEWEY, SOUTH DAKOTA
From 18-JUN-14 06:44:00 to 18-JUN-14 06:44:00 (MST-7)
Location: THATCHER
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in DEWEY, SOUTH DAKOTA
From 18-JUN-14 07:15:00 to 18-JUN-14 07:15:00 (MST-7)
Location: THATCHER
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in POTTER, SOUTH DAKOTA
From 18-JUN-14 04:55:00 to 18-JUN-14 04:55:00 (CST-6)
Location: LEBANON
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in CORSON, SOUTH DAKOTA
From 18-JUN-14 12:33:00 to 18-JUN-14 12:33:00 (MST-7)
Location: BLACK HORSE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in CORSON, SOUTH DAKOTA
From 18-JUN-14 12:47:00 to 18-JUN-14 12:47:00 (MST-7)
Location: BLACK HORSE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in SPINK, SOUTH DAKOTA
From 18-JUN-14 19:48:00 to 18-JUN-14 19:48:00 (CST-6)
Location: ASHTON
Magnitude: 52.00 EG
Crop damage: 0.00K
Reported by: Public

Sixty mph winds blew the door in on a barn.

Thunderstorm Wind in SPINK, SOUTH DAKOTA
From 18-JUN-14 20:03:00 to 18-JUN-14 20:03:00 (CST-6)
Location: MELLETTE
Magnitude: 75.00 MG
Reported by: Mesonet

Thunderstorm Wind in BROWN, SOUTH DAKOTA
From 18-JUN-14 20:05:00 to 18-JUN-14 20:05:00 (CST-6)
Location: RICHMOND
Magnitude: 57.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Hail in CAMPBELL, SOUTH DAKOTA
From 18-JUN-14 15:48:00 to 18-JUN-14 15:48:00 (CST-6)
Location: ARTAS
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in STANLEY, SOUTH DAKOTA
From 19-JUN-14 12:55:00 to 19-JUN-14 12:55:00 (MST-7)
Location: SANSARC
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in SULLY, SOUTH DAKOTA
From 19-JUN-14 16:05:00 to 19-JUN-14 16:05:00 (CST-6)
Location: AGAR
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in DAY, SOUTH DAKOTA
From 19-JUN-14 19:20:00 to 19-JUN-14 19:20:00 (CST-6)
Location: WAUBAY
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in GRANT, SOUTH DAKOTA
From 19-JUN-14 19:44:00 to 19-JUN-14 19:44:00 (CST-6)
Location: HILAND
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in BROWN, SOUTH DAKOTA
From 18-JUN-14 20:40:00 to 18-JUN-14 20:40:00 (CST-6)
Location: BATH
Magnitude: 61.00 EG
Reported by: Emergency Manager

Several two-foot diameter trees were blown down east of Bath by seventy mph winds.

Tornado in HYDE, SOUTH DAKOTA
From 18-JUN-14 17:05:00 to 18-JUN-14 17:15:00 (CST-6)
Location: STEPHAN
Tornado F-scale: EF1
Reported by: NWS Storm Survey

A tornado touched down east of Stephan damaging two homes. The main home at the residence had part of its metal roof taken off, while a secondary home lost its entire roof structure. A wooden barn had its main door blown in resulting in a lifting of the roof structure. This allowed the exterior walls to collapse with the roof then settling back down on the debris. A metal machine shed was destroyed along with a semi-tractor trailer blown over on its side. As the tornado continued north, a tree grove suffered extensive damage with numerous trees being topped and large branches broken off.

Tornado in BUFFALO, SOUTH DAKOTA
From 18-JUN-14 17:07:00 to 18-JUN-14 17:15:00 (CST-6)
Location: FT THOMPSON
Tornado F-scale: EF0
Reported by: NWS Storm Survey

A tornado developed in Buffalo county and grew in size to approximately a quarter mile wide as it tracked northeast in open country. The tornado tracked two miles before dissipating near the Hand county line. The tornado did hit a shelter belt causing tree damage with several softwood trees uprooted along with large branches broken.

Thunderstorm Wind in BROWN, SOUTH DAKOTA
From 18-JUN-14 20:45:00 to 18-JUN-14 20:45:00 (CST-6)
Location: GROTON MUNI ARPT
Magnitude: 52.00 EG
Crop damage: 0.00K
Reported by: Public

Sixty mph winds downed several large branches.

Thunderstorm Wind in BUFFALO, SOUTH DAKOTA
From 18-JUN-14 17:51:00 to 18-JUN-14 17:51:00 (CST-6)
Location: GANN VLY
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Sixty mph winds were estimated by a trained spotter.

Thunderstorm Wind in BROWN, SOUTH DAKOTA
From 18-JUN-14 20:24:00 to 18-JUN-14 20:24:00 (CST-6)
Location: GROTON
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Sixty mph winds were estimated in Groton.

Thunderstorm Wind in DAY, SOUTH DAKOTA
From 19-JUN-14 04:00:00 to 19-JUN-14 04:00:00 (CST-6)
Location: LILY
Magnitude: 56.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Thunderstorm Wind in POTTER, SOUTH DAKOTA
From 19-JUN-14 16:46:00 to 19-JUN-14 16:46:00 (CST-6)
Location: LEBANON
Magnitude: 52.00 EG
Crop damage: 0.00K
Reported by: Public

Sixty mph winds brought some tree limbs down.

Thunderstorm Wind in HYDE, SOUTH DAKOTA
From 19-JUN-14 16:47:00 to 19-JUN-14 16:47:00 (CST-6)
Location: HIGHMORE ARPT
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Sixty mph winds were estimated with no damage reported.

Thunderstorm Wind in MCPHERSON, SOUTH DAKOTA
From 18-JUN-14 18:05:00 to 18-JUN-14 18:05:00 (CST-6)
Location: LONG LAKE
Magnitude: 55.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Thunderstorm Wind in CODINGTON, SOUTH DAKOTA
From 19-JUN-14 19:17:00 to 19-JUN-14 19:17:00 (CST-6)
Location: WALLACE
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Sixty-five mph winds were estimated.

Hail in WALWORTH, SOUTH DAKOTA
From 18-JUN-14 14:30:00 to 18-JUN-14 14:35:00 (CST-6)
Location: SELBY ARPT
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SHAVE Project

Hail in WALWORTH, SOUTH DAKOTA
From 18-JUN-14 14:45:00 to 18-JUN-14 14:45:00 (CST-6)
Location: SELBY
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SHAVE Project

Hail in CAMPBELL, SOUTH DAKOTA
From 18-JUN-14 15:45:00 to 18-JUN-14 15:50:00 (CST-6)
Location: HERREID
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SHAVE Project

Flash Flood in SPINK, SOUTH DAKOTA
From 18-JUN-14 22:00:00 to 19-JUN-14 01:00:00 (CST-6)
Location: BRENTFORD
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Very heavy rains of 2 to 3 inches resulted in water over topping several secondary roads along with a few creeks coming out of their banks.

Tornado in BUFFALO, SOUTH DAKOTA
From 18-JUN-14 17:45:00 to 18-JUN-14 17:50:00 (CST-6)
Location: GANN VLY
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

A tornado touched down in open country east of Gann Valley with no damage reported.

Tornado in HAND, SOUTH DAKOTA
From 18-JUN-14 18:00:00 to 18-JUN-14 18:05:00 (CST-6)
Location: REE HGTS
Tornado F-scale: EF0
Crop damage: 0.00K
Reported by: Public

A tornado touched down southwest of Ree Heights causing some roof damage to an outbuilding with about one-third of the roofing material removed. The tornado also damaged several trees in a nearby shelter belt.

Tornado in FAULK, SOUTH DAKOTA
From 18-JUN-14 18:00:00 to 18-JUN-14 18:05:00 (CST-6)
Location: CRESBARD
Tornado F-scale: EF0
Reported by: Airplane Pilot

A tornado was confirmed by aerial photography from a local pilot. The tornado scoured a path through some crops.

Flash Flood in WALWORTH, SOUTH DAKOTA
From 18-JUN-14 19:35:00 to 18-JUN-14 21:35:00 (CST-6)
Location: MOBRIDGE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Flash flooding from very heavy rains of 3 to 4 inches resulted in the closing of Highway 12 west of Mobridge.

Flash Flood in DAY, SOUTH DAKOTA
From 19-JUN-14 05:00:00 to 19-JUN-14 07:00:00 (CST-6)
Location: ANDOVER
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Very heavy rains of 4 to 5 inches flooded a road southeast of Andover.

Thunderstorm Wind in SPINK, SOUTH DAKOTA
From 18-JUN-14 20:25:00 to 18-JUN-14 20:25:00 (CST-6)
Location: CONDE
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Sixty mph winds were estimated by the public.

Flash Flood in CORSON, SOUTH DAKOTA
From 18-JUN-14 18:30:00 to 18-JUN-14 20:00:00 (MST-7)
Location: WAKPALA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Very heavy rains brought flash flooding with water running over U.S. Highway 12 west of the Grand River Casino.

Thunderstorm Wind in CLARK, SOUTH DAKOTA
From 19-JUN-14 03:40:00 to 19-JUN-14 03:40:00 (CST-6)
Location: RAYMOND
Magnitude: 52.00 EG
Crop damage: 0.00K
Reported by: Trained Spotter

A large tree limb was downed by sixty mph winds.