Colorado, 1999

Tornadoes and Hail in Colorado, June 26, 1999

June 26, 1999 · NWS BOU · 11 events in 3 counties and zones

Portions of the Northeast Plains were hammered by a variety of severe weather during the evening hours. Large hail, tornadoes, straight-line winds, heavy rain and flooding did extensive damage in Logan, Sedgwick and Phillips Counties.

Where it happened

Every event with a place to put it. Tap one for its entry below.

  • Tornadoes
  • Tropical storms and surge
  • Floods
  • Wind
  • Hail
  • Winter weather
  • Heat and drought
  • Cold
  • Fire, smoke and dust
  • Marine and coastal
  • Other

Open the live radar over this ground

The toll

Deaths
0
Injuries
0
Property damage
$100,000
Crop damage
None recorded
Events
11

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS BOU wrote it up.

Portions of the Northeast Plains were hammered by a variety of severe weather during the evening hours. Large hail, tornadoes, straight-line winds, heavy rain and flooding did extensive damage in Logan, Sedgwick and Phillips Counties. Several tornadoes reportedly touched down. A newly built home was struck 3 miles north of Crook, damaging nearly two thirds of the residence. Tornado touchdowns were also reported in and near Iliff. Several barns, crops, farm equipment, grain bins and fences were either damaged or destroyed. Approximately 80 power lines were downed near Crook along with several trees as large hail and damaging winds moved through the area. Some livestock was also injured. Flooding also developed as several creeks jumped their banks. A number of county roads were washed out. Some roadways were covered by as much as 4 feet of water in spots. An exact estimate of the damage throughout the tri-county areas was not available.

The radar

The Cheyenne radar (KCYS), 169 km away, was scanning. The volume nearest the first event began at 02:28 UTC.

Open the radar archive at this moment

Event by event

7 hail, 4 tornado. Local standard time, as filed.

Tornado, Logan

When
June 26, 7:30 PM MST to 7:35 PM MST
Where
Logan County, 8 mi N of Crook
Rating
F1
Path length
0.2 mi
Path width
50 yd
Reported by
TRAINED SPOTTER
Coordinates
40.970, -102.800

Tornado, Logan

When
June 26, 7:50 PM MST
Where
Logan County, 5 mi N of Iliff
Rating
F1
Path length
0.2 mi
Path width
50 yd
Reported by
TRAINED SPOTTER
Coordinates
40.820, -103.070

Hail, Sedgwick

When
June 26, 7:55 PM MST
Where
Sedgwick County, 5 mi W of Sedgwick
Measured
1.75 in hail
Reported by
TRAINED SPOTTER
Coordinates
40.930, -102.620

Tornado, Logan

When
June 26, 7:55 PM MST
Where
Logan County, 3 mi N of Crook
Rating
F1
Path length
0.2 mi
Path width
50 yd
Property damage
$100,000
Reported by
TRAINED SPOTTER
Coordinates
40.900, -102.800

Tornado, Logan

When
June 26, 7:57 PM MST
Where
Logan County, Iliff
Rating
F1
Path length
0.2 mi
Path width
50 yd
Reported by
TRAINED SPOTTER
Coordinates
40.750, -103.070

Hail, Logan

When
June 26, 8:45 PM MST to 9:00 PM MST
Where
Logan County, Iliff
Measured
0.75 in hail
Reported by
TRAINED SPOTTER
Coordinates
40.750, -103.070

Hail, Phillips

When
June 26, 9:10 PM MST
Where
Phillips County, 5 mi NW of Holyoke
Measured
1.75 in hail
Reported by
TRAINED SPOTTER
Coordinates
40.630, -102.370

Hail, Phillips

When
June 26, 9:15 PM MST
Where
Phillips County, Holyoke
Measured
1.75 in hail
Reported by
TRAINED SPOTTER
Coordinates
40.580, -102.300

Hail, Phillips

When
June 26, 9:20 PM MST
Where
Phillips County, 8 mi NE of Holyoke
Measured
1.75 in hail
Reported by
TRAINED SPOTTER
Coordinates
40.670, -102.200

Hail, Phillips

When
June 26, 9:35 PM MST
Where
Phillips County, 11 mi SE of Holyoke
Measured
1 in hail
Reported by
TRAINED SPOTTER
Coordinates
40.470, -102.150

Hail, Phillips

When
June 26, 9:40 PM MST
Where
Phillips County, 11 mi E of Holyoke
Measured
1.75 in hail
Reported by
TRAINED SPOTTER
Coordinates
40.580, -102.080

What these are

Tornado
A violently rotating column of air in contact with the ground and extending from a thunderstorm, filed with its path, width and Fujita or Enhanced Fujita rating from the damage survey.
Hail
Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Colorado in 1999Every state in 1999This day in weather historyThe tornado archive for Colorado, 1999Warnings in Colorado, June 1999

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 5704794, 5704784, 5704785, 5704786, 5704787, 5704788, 5704789, 5704790, 5704791, 5704792, 5704793.