What caused the April 2011 tornado outbreak?
The outbreak was caused by a vigorous upper-level trough that moved into the Southern Plains states on April 25. An extratropical cyclone developed ahead of this upper-level trough between northeastern Oklahoma and western Missouri, and moved northeastward.
What was the biggest tornado in 2011?
2011 Joplin tornado
The 2011 Joplin tornado was a devastating EF5-rated multiple-vortex tornado that struck Joplin, Missouri, United States, on the evening of Sunday, May 22, 2011….2011 Joplin tornado.
| EF5 tornado | |
|---|---|
| Dissipated | May 22, 2011, 6:12 p.m. CDT (UTC–05:00) |
| Highest winds | > 200 mph (320 km/h) |
| Max. rating1 | EF5 tornado |
What tornadoes happened in 2011?
The most destructive tornado was in Franklin County, Tennessee on the afternoon of February 28 where one person was killed by an EF2 tornado. It was the first killer tornado of 2011. Another strong tornado, rated EF3, resulted in houses destroyed near Eminence, Kentucky.
Why was 2011 so unusual for strong tornadoes?
“The jet stream, which is that powerful river of air aloft over the country, turned out to be very strong this year. It had very high wind speeds in it. And it was moving over tornado alley, where we tend to get cold, dry air from Canada colliding with warm, moist air from the Gulf of Mexico.
How many tornadoes were there in April 2011?
In total, there were about 360 tornadoes that touched down across 26 states — marking a new record for a continuous outbreak. Nearly 25% of the 360 were strong to violent on the Enhanced Fujita Scale. The tornadoes that tore across Alabama alone carved a total path length of about 1,200 miles.
Where can I find the tornado outbreak of April 27 2011?
Weather.gov > NWS Birmingham, Alabama > Historic Outbreak of April 27, 2011. Event Summary for Central Alabama. As part of a system which wreaked havoc across the eastern half of the United States (April 25-28), the following is an account of the tornado outbreak of April 27th, 2011, in Central Alabama.
When was the last tornado in Alabama 2011?
Historic Outbreak of April 27, 2011. As part of a system which wreaked havoc across the eastern half of the United States (April 25-28), the following is an account of the tornado outbreak of April 27th, 2011, in Central Alabama.
What was the date of the 2011 Smithville tornado?
It was a devastatingly unforgettable event! On April 27 2011, a tornado outbreak struck Smithville, Mississippi. After hearing the alert, I had walked outside. It was partly cloudy and warm but it turned cool so quickly that I thought it was over and I walked back inside my house.
What was the largest tornado outbreak in the United States?
1974 Super Outbreak – Infamous tornado outbreak that occurred on April 3–4, 1974, similar in severity to the 2011 Super Outbreak; though the 2011 event surpassed the 1974 Super Outbreak as the largest recorded outbreak. April 1977 Birmingham tornado – F5 tornado that hit the northern Birmingham suburbs on April 4, 1977.