The 16th was hot and humid with late afternoon temperatures topping out in the 80s to around 90 and dew point temperatures well into the 70s. This created a large amount of instability. By early in the evening, thunderstorms began to flare up again aided by a weak low level jet.

Tornado in GRIGGS, NORTH DAKOTA
From 16-JUL-11 18:20:00 to 16-JUL-11 18:24:00 (CST-6)
Location: REVERE
Tornado F-scale: EF1
Property damage: 10.00K
Crop damage: 50.00K
Reported by: Broadcast Media

The tornado knocked down several trees in various shelterbelts along its route. At one farmstead several sheets of steel roofing were ripped up and tossed off of a shed and numerous tree branches were scattered about. Peak winds were estimated at 95 mph.

Tornado in GRIGGS, NORTH DAKOTA
From 16-JUL-11 18:10:00 to 16-JUL-11 18:14:00 (CST-6)
Location: REVERE
Tornado F-scale: EF1
Crop damage: 20.00K
Reported by: Public

This tornado was first reported by an observer located south of Sutton and looking east towards Hannaford. The tornado snapped down several trees in a shelterbelt and flattened part of a corn field before lifting. Peak winds were estimated at 95 mph.

Tornado in BENSON, NORTH DAKOTA
From 16-JUL-11 19:18:00 to 16-JUL-11 19:26:00 (CST-6)
Location: FT TOTTEN
Tornado F-scale: EF0
Reported by: Public

This tornado developed over the west bay of Devils Lake and tracked intermittently across open lake water for nearly three miles. The tornado was partially rain wrapped but briefly viewable from Lakewood Park. Peak winds were estimated at 75 mph.

Tornado in RAMSEY, NORTH DAKOTA
From 16-JUL-11 20:48:00 to 16-JUL-11 20:49:00 (CST-6)
Location: DOYON
Tornado F-scale: EF0
Reported by: Storm Chaser

The tornado briefly touched down in an open field. Peak winds were estimated at 70 mph.

Hail in GRIGGS, NORTH DAKOTA
From 16-JUL-11 18:35:00 to 16-JUL-11 18:35:00 (CST-6)
Location: SHEPARD
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in BENSON, NORTH DAKOTA
From 16-JUL-11 20:10:00 to 16-JUL-11 20:15:00 (CST-6)
Location: ST MICHAEL
Magnitude: 1.25 
Reported by: Law Enforcement

The large hail fell over Devils Lake from Black Tiger Bay into East Bay.

Flash Flood in BENSON, NORTH DAKOTA
From 16-JUL-11 21:30:00 to 17-JUL-11 05:30:00 (CST-6)
Location: TOKIO
Flood cause: Heavy Rain
Property damage: 1.00K
Crop damage: 10.00K
Reported by: Law Enforcement

Several sections of roadway and farm access roads were made impassable by water flowing across.

Flash Flood in NELSON, NORTH DAKOTA
From 16-JUL-11 21:45:00 to 17-JUL-11 05:00:00 (CST-6)
Location: LAKOTA
Flood cause: Heavy Rain
Property damage: 2.00K
Crop damage: 10.00K
Reported by: Trained Spotter

Several sections of county and farm access roads across southern Illinois and Dodds townships were made impassable due to water flowing over the roads.

Heavy Rain in PEMBINA, NORTH DAKOTA
From 16-JUL-11 22:00:00 to 16-JUL-11 22:00:00 (CST-6)
Location: DRAYTON
Reported by: Amateur Radio

An observer reported 3.50 inches of rain in Drayton. Water rose up to some car doors in town.

Tornado in BENSON, NORTH DAKOTA
From 16-JUL-11 18:51:00 to 16-JUL-11 19:00:00 (CST-6)
Location: MINNEWAUKAN
Tornado F-scale: EF0
Reported by: Law Enforcement

This tornado tracked into the northern portion of Long Lake and became quite visible as it pulled up lake water. The tornado tracked for roughly 3 miles and became rain wrapped. Peak winds were estimated at 75 mph.