Danny Neal
EF5
Sickening birds-eye view of the tornado going through Tuscaloosa.... shame on those people who were cheering it on too.
The number of tornadoes should not be used to define the impacts of the outbreak, but rather the total area covered by tornado damage. Although we have yet to see those numbers, it is possible that the area covered by damage on 27 April 2011 may exceed that covered in 3-4 April 1974. In addition, the area covered by strong and violent damage is important, along with the population densities, land use, and demographic data affected by the tornadoes.The Super Outbreak also featured 6 F5 tornadoes and 24 F4 tornadoes. As best as I can determine, using the preliminary data that is available, the recent April 26-28 event produced 2 EF5 and 11 EF4 tornadoes. Both are quite obviously extreme outbreaks, both in terms of total tornadoes and percentage of all tornadoes that were violent. But considering the Super Outbreak produced a considerably higher number of violent tornadoes in a much shorter time frame, I don't see how it is "unreasonable" when others argue that it is still the most intense tornado outbreak on record.
PATH LENGTH: 2.82 MILES
PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE MEMPHIS TN
755 AM CDT MON MAY 2 2011
...UPDATE TO PRELIMINARY EF-5 DAMAGE TORNADO IN MONROE COUNTY
MISSISSIPPI...
BASED UPON FURTHER EXAMINATION OF SATELLITE IMAGERY WHICH
DEPICTED TREE SCARS /KNOCKED DOWN BY THE TORNADO/ AND OTHER
GROUND SURVEY EVIDENCE...THE NATIONAL WEATHER SERVICE OFFICE IN
MEMPHIS IN COORDINATION WITH THE NATIONAL WEATHER SERVICE OFFICE
IN BIRMINGHAM HAS CONNECTED THE SMITHVILLE MS AND SHOTTSVILLE AL
TORNADO DAMAGE SEGMENTS. THIS PUBLIC INFORMATION STATEMENT
PROVIDES UPDATED INFORMATION ON THE SECTION OF THE SEGMENT FROM
SMITHVILLE MS TO NEAR SHOTTSVILLE AL.
* COUNTY/COUNTIES: MONROE
* LOCATION/TIME OF EVENT: SMITHVILLE AT 344 PM CDT ON APRIL 27 2011
* BEGINNING POINT: 34.0517/-88.4236
* ENDING POINT: 34.1579/-88.1847
* RATING: EF-5
* ESTIMATED PEAK WIND: 205 MPH
* PATH LENGTH: 15.24 MILES /CONTINUES INTO SHOTTSVILLE ALABAMA SEGMENT/
* MAXIMUM WIDTH: 3/4 MILE /WIDENED TO MATCH SHOTTSVILLE TORNADO SEGMENT/
Has the Smithville tornado been "connected" to any other paths, yet? I find it hard to believe that such a violent tornado had such a short path length:
http://www.srh.noaa.gov/news/display_cmsstory.php?wfo=meg&storyid=67427&source=0
Given the forward speed of the storms, it could only have been on the ground for three minutes at that path length. That brief of an EF5 tornado just does not compute, especially given the number of much longer-track EF4s and EF3s.
As per the updated PNS I found, they were found to be one tornado.
One question that comes to mind when comparing the Super Outbreak with 4/27/11 is the consistency of the ratings. It's probably been debated many times before and I'm not criticizing the surveyors in any way, but I have a hard time believing that on the old rating system we would have just the two EF5/F5 tornadoes from 4/27 and just 11 EF4/F4 tornadoes. It seems some damage indicators that were once F5 are now EF4. Damage from Ringgold and the Tuscaloosa/Birmingham tornadoes certainly seems on par with damage photos of Xenia, Brandenburg or other F5's (even quoted as so by Dr. Forbes on the flyover Tuscaloosa damage). I know they say the difference between F4 and F5 is the most difficult to differentiate, but it's hard to imagine these were not quite as strong as say other F5's which did so much less high end damage, often to a minimal number of structures (Broken Bow, Goessel, Chandler, Oakfield).
Irregardless, like most, I never thought I'd see an outbreak even rival the Super Outbreak.
Third tornado upgraded to EF-5 http://mesonet.agron.iastate.edu/p.php?pid=201105051837-KJAN-NOUS44-PNSJAN This one dug some trenches feet deep along it's path
Third tornado upgraded to EF-5 http://mesonet.agron.iastate.edu/p.php?pid=201105051837-KJAN-NOUS44-PNSJAN This one dug some trenches feet deep along it's path