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March 21–23, 2017 tornado outbreak
Date of tornado outbreak: March 21-23, 2017
Duration1: 2 days, 56 minutes (estimate)
Maximum rated tornado2: EF4 tornado
Tornadoes caused: 64
Total Damages: >$1,003,467,108 USD)
Total Fatalities: 2
Areas Affected: Midwestern United States, United States Great Plains

1Time from first tornado to last tornado
2Most severe tornado damage; see wikipedia:Enhanced Fujita Scale

The March 21–23, 2017 tornado outbreak affected portions of the United States Great Plains and Midwest regions from Oklahoma to Iowa from March 21 to March 23, 2017. The outbreak produced at least 64 tornadoes across the region. In Nebraska, several strong tornadoes touched down across the southern and central portion of the state, including a EF4 that traveled for 90 miles (145 km) and affected Omaha, Nebraska among other places during its life. Two people were killed in the outbreak, both as a result of the EF4 tornado.


Meteorological synopsis

On March 23, 2017, a strong surface low pressure was located in north central Kansas. The low pulled unseasonably warm and most air north into south central Nebraska and north central Kansas. Surface dewpoint temperatures rose to above 60 degrees in eastern Nebraska while surface temperatures topped 70 degrees in northern Kansas. A surface dryline, or push of dry air from the west southwest, bulged into north central Kansas, and was part of the spark that ignited the explosive instability in the area. Typical of strong March weather systems, while central and eastern Nebraska and Kansas were impacted by severe weather, the Nebraska panhandle experienced heavy snow, ice and wintry weather conditions.

Confirmed tornadoes

  • All ratings are preliminary. Surveys are being be conducted, which may reveal the presence of additional tornadoes and higher damage than initially assigned.
Confirmed
Total
Confirmed
EF0
Confirmed
EF1
Confirmed
EF2
Confirmed
EF3
Confirmed
EF4
Confirmed
EF5
3 2 3 0 0 1 0

March 21 event

List of confirmed tornadoes - Tuesday, March 21, 2017
F# Location County Time (CT) Path length Max width Summary
Oklahoma
EF0 W of Prattville Tulsa 6:30 - 6:31 PM 1 mile (1.6 km) 75 yd (69 m) A brief rope tornado damaged the roofs of two houses.
EF1 ENE of Sand Springs to ENE of Sperry Tulsa, Osage 6:34 - 6:54 PM 14 miles (23 km) 300 yd (270 m) Tornado touched down on SR 412 just north of the Arkansas River. A small subdivision of homes was damaged immediately thereafter, in which homes sustained minor roof, siding, and porch damage. Many trees were damaged along the path afterward. Several other rural home subdivisions were encountered later in the path, which also sustained little damage. A tractor trailer was also flipped.

March 22 event

List of confirmed tornadoes - Wednesday, March 22, 2017
F# Location County Time (CT) Path length Max width Summary
Kansas
EF1 S of Hamilton Greenwood 6:49 - 6:56 PM 5 miles (8.05 km) 25 yd (22.9 m) A barn was completely destroyed near the beginning of the tornado's path, and a home experienced minor damage on 210th street.
EF1 NW of Virgil Greenwood 7:06 - 7:11 PM 3 miles (4.8 km) 100 yd (91.4 m) One home and a barn on the same property suffered modest damage.
EF0 Shell Rock area Greenwood 7:15 - 7:16 PM 0.5 mi (.804 km) 50 yd (45.7 m) Tornado remained over open country.

March 23 event

List of confirmed tornadoes - Thursday, March 23, 2017
F# Location County Time (CT) Path length Max width Summary

Omaha, Nebraska

Lincoln tornado

The EF4 tornado just east of Lincoln, prior to entering Omaha

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