Severe thunderstorms developed across Lincoln, Logan and Washington counties.  The storms produced damaging thunderstorms wind gusts to 70 mph, hail up to 3 inches in diameter, and 7 brief tornadoes.  Two the tornadoes in Logan County were rated EF1; they knocked down several power poles along State Highway 61 east of Sterling and near Proctor.

Hail in LOGAN, COLORADO
From 23-MAY-21 15:11:00 to 23-MAY-21 15:11:00 (MST-7)
Location: ILIFF
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in LOGAN, COLORADO
From 23-MAY-21 15:11:00 to 23-MAY-21 15:11:00 (MST-7)
Location: ILIFF
Magnitude: 1.00 
Reported by: Public

Hail in LOGAN, COLORADO
From 23-MAY-21 15:30:00 to 23-MAY-21 15:30:00 (MST-7)
Location: ILIFF
Magnitude: 1.50 
Reported by: Trained Spotter

Hail in LOGAN, COLORADO
From 23-MAY-21 15:35:00 to 23-MAY-21 15:35:00 (MST-7)
Location: POWELL
Magnitude: 3.00 
Reported by: Public

Tornado in WASHINGTON, COLORADO
From 23-MAY-21 13:24:00 to 23-MAY-21 13:25:00 (MST-7)
Location: MIDWAY
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A tornado touched down briefly in open country.  No damage was observed.

Tornado in WASHINGTON, COLORADO
From 23-MAY-21 14:14:00 to 23-MAY-21 14:15:00 (MST-7)
Location: AKRON ARPT
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

A tornado touched down briefly in open country.  No damage was observed.

Tornado in LOGAN, COLORADO
From 23-MAY-21 15:19:00 to 23-MAY-21 15:20:00 (MST-7)
Location: FLEMING
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A tornado touched down briefly in open country.

Tornado in LOGAN, COLORADO
From 23-MAY-21 14:49:00 to 23-MAY-21 15:00:00 (MST-7)
Location: STERLING
Tornado F-scale: EF1
Reported by: County Official

A tornado touched down and knocked power poles down along State Highway 61.

Tornado in WASHINGTON, COLORADO
From 23-MAY-21 13:52:00 to 23-MAY-21 13:57:00 (MST-7)
Location: WOODROW
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

A tornado touched down briefly in open country.  No damage was observed.

Tornado in LOGAN, COLORADO
From 23-MAY-21 15:29:00 to 23-MAY-21 15:30:00 (MST-7)
Location: POWELL
Tornado F-scale: EF1
Reported by: Emergency Manager

A tornado touched down and knocked down powers pole near Proctor.

Thunderstorm Wind in LOGAN, COLORADO
From 23-MAY-21 15:14:00 to 23-MAY-21 15:15:00 (MST-7)
Location: PADRONI
Magnitude: 61.00 EG
Reported by: Emergency Manager

Some power poles were knocked down, and tree branches snapped.

Thunderstorm Wind in LINCOLN, COLORADO
From 23-MAY-21 14:19:00 to 23-MAY-21 14:19:00 (MST-7)
Location: (LIC)LIMON ARPT
Magnitude: 56.00 MG
Reported by: ASOS

Thunderstorm Wind in LOGAN, COLORADO
From 23-MAY-21 15:40:00 to 23-MAY-21 15:40:00 (MST-7)
Location: STERLING
Magnitude: 53.00 MG
Reported by: Mesonet

Thunderstorm Wind in WASHINGTON, COLORADO
From 23-MAY-21 16:21:00 to 23-MAY-21 16:21:00 (MST-7)
Location: AKRON
Magnitude: 50.00 MG
Reported by: Mesonet

Tornado in LINCOLN, COLORADO
From 23-MAY-21 15:45:00 to 23-MAY-21 15:50:00 (MST-7)
Location: ARRIBA
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

A tornado touched down in an open field.  No damage was observed.

Tornado in LINCOLN, COLORADO
From 23-MAY-21 13:00:00 to 23-MAY-21 13:01:00 (MST-7)
Location: (LIC)LIMON ARPT
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A tornado touched down in an open field.  No damage was observed.

Hail in LOGAN, COLORADO
From 23-MAY-21 14:58:00 to 23-MAY-21 14:58:00 (MST-7)
Location: ATWOOD
Magnitude: 1.00 
Reported by: Public