Tornado kills ten in Mississippi

By: Dr. Jeff Masters , 1:22 PM GMT on April 25, 2010

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A powerful 1/2 to 1-mile wide tornado cut a path of enormous destruction across the state of Mississippi yesterday, killing at least ten and injuring dozens. It was the deadliest tornado in the U.S. since May 10, 2008, when an EF-4 tornado killed 22 people in Oklahoma and Missouri. The damage I've seen so far from photos of yesterday's tornado appears to be mainly of the EF-3 variety, though we will have to wait for the official damage surveys to be sure. The supercell thunderstorm that spawned the tornado or family of tornadoes maintained a continuous circulation from the time the tornado first touched down in Louisiana near the Mississippi border until the tornado reached the Alabama border. This is an extremely rare occurrence. If the 188-mile path of destruction across Mississippi was from a single tornado, it would rank as one of the longest tracks by a single tornado on record. The record of 219 miles is held by the deadliest tornado of all time, the great Tri-State Tornado of 1925 (though there is some dispute over whether this was one tornado or a family of tornadoes.) Our severe weather expert Dr. Rob Carver has a more complete analysis and imagery of yesterday's tornadoes.


Figure 1. Doppler radar storm-relative velocity of the mile-wide tornado that affected Yazoo City, Mississippi On April 24, 2010. This is an unusually wide and strong circulation for a supercell thunderstorm.

More severe weather expected today along the East Coast
The Storm Prediction Center (SPC) outlined a "Slight Risk" region of concern for severe weather today along the East Coast, from Maryland to Northern Florida. Yesterday, SPC had Mississippi underneath the first "High Risk" area of severe weather concern for the year. As usual, you can follow today's severe weather outbreak with our interactive tornado page and our severe weather page..


Figure 2. Severe weather reports for Saturday. Note the long line of red tornado reports extending across the state of Mississippi. These reports originated from a single supercell thunderstorm that spawned one or more tornadoes that carved out a 188-mile lone path of destruction across the state. Image credit: Storm Prediction Center.

Jeff Masters

Storm Lines (thomasanthony)
A quick line of storm clouds came over Lawrence around 7pm. I forgot to change my ISO back after shooting eagles earlier in low light thus a noisy shot.
Storm Lines
Tornado damage in Choctaw County (richardlove310)
Tornado damage in Choctaw County
Tornado damage in Choctaw County (richardlove310)
Tornado damage in Choctaw County

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Hey Homeless!!

I agree that setup with the high would be exactly what we don't need.
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Lafayette, Purdue University Airport
Lat: 40.43 Lon: -86.93 Elev: 623
Last Update on Apr 26, 2:54 pm EDT

Fair

64 °F
(18 °C)
Humidity: 50 %
Wind Speed: N 13 G 20 MPH
Barometer: 29.51" (999.0 mb)
Dewpoint: 45 °F (7 °C)
Visibility: 10.00 mi.
Member Since: June 28, 2006 Posts: 25 Comments: 8360
Quoting Stormchaser2007:
According to the CPC weekly update, Nino 3.4 is down to .7



I think the reason that the Nino 3.4 region rose like it did was because of the last warm anomalies reaching the surface in that area. We should continue to see a steady fall soon.
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Apparent area of low pressure in the lower caribbean, this is an area that should be watched, After the MJO passes on April 30, 2010, it should be watched closely for possible tropical development.



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779. xcool
i just email you ;)
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Quoting SomeRandomTexan:
Looks like we will only be on the edge of the ridge here in SeTx... should give us a good offshore breeze.




Afternoon SRT all.

Yeah unfortunately we'll be on the west side of a ridge in a couple days. Getting onshore flow. Yuck! Hopefully this set up doesn't stay that way all summer. That's what kills us. Storms rounding that western edge of the ridge.

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777. Skyepony (Mod)
Levi~ I agree. GFS has had a terrible handle on the MJO for near 2 weeks now.
Member Since: August 10, 2005 Posts: 174 Comments: 38167
776. IKE
Quoting xcool:
hey ike .


Hey-hey.
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774. xcool
hey ike .
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Big model war going on in the med-long range. The GFS is much more progressive with the pattern than the ECMWF, shoving troughs into the east over the top of the GOM ridge, whereas the Euro keeps the trough entrenched in the west and a much warmer look in the east, which seems more supported by the overall pattern. One could find support for the GFS by looking at the MJO over the next 2 weeks, but there are competing factors here and I believe the Euro has a better handle on it, but we shall see.

Euro(left) and GFS(right) comparison of 8-10 day mean 500mb heights:

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Hey, I'm happy riding my bicycle to the store, working in my home office, and never leaving the beachside. They can take my V8 Jeep if I could do that all of the time! BTW, it's averaging 24.7 mpg so not a really big gas guzzler either. My grandfather gave me my first car, a powder blue 65 Cadillac he had taken great care of but for which he couldn't get anything on a trade in from the dealer. That one got between 6-10 mpg I think but gas was 75 cents a gallon at the time. Okay, now back to work!
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OIL RESERVES

Rank country (bbl) Date of Information

1 Saudi Arabia 266,700,000,000 1 January 2009 est.
2 Canada 178,100,000,000 1 January 2009 est.
3 Iran 137,600,000,000 1 January 2010 est.
4 Iraq 115,000,000,000 1 January 2009 est.
5 Kuwait 101,500,000,000 1 January 2009 est.
6 Venezuela 99,380,000,000 1 January 2009 est.
7 United Arab Emirates 97,800,000,000 1 January 2009 est.
8 Russia 79,000,000,000 1 January 2009 est.
9 Libya 43,660,000,000 1 January 2009 est.
10 Nigeria 36,220,000,000 1 January 2009 est.


OIL CONSUMPTION
Rank country (bbl/day) Date of Information

1 United States 19,500,000 2008 est.
2 European Union 14,390,000 2007 est.
3 China 7,999,000 2008
4 Japan 4,785,000 2008 est.
5 Russia 2,800,000 2008 est.
6 India 2,670,000 2009 est.
7 Germany 2,569,000 2008 est.
8 Brazil 2,520,000 2008 est.
9 Saudi Arabia 2,380,000 2008 est.
10 Canada 2,260,000 2008 est.

source: CIA - The World Factbook
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770. IKE
12Z ECMWF....
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Looks like NW Cuba and the FL Keys are going to experience the worst of this storm's energy...

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Looks like we will only be on the edge of the ridge here in SeTx... should give us a good offshore breeze.

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Quoting SomeRandomTexan:
Looks like the CMC wants to take a very weak system north over Mexico and into the Gulf as a broad low... hmmmmm
GFS been showing that too for a couple days now.
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Can anyone form me in on what is going on over at Central Amrica? Thanks.
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It's only 78 degrees here at 3pm in St. Petersburg, FL. Wow what a nice day.
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Looks like the CMC wants to take a very weak system north over Mexico and into the Gulf as a broad low... hmmmmm
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Afternoon all.

Quoting Bordonaro:
Looks like the Bahamas will get some real good rains today.
We started getting some moderate to heavy showers around noon in Nassau. I actually heard some thunder also... lol It's stopped in my location for now. However, I expect we'll have showers off and on throughout the afternoon and evening hours.



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Quoting Levi32:


Oh the first 10 days of May are going to blowtorch the temps both in the air and water around the gulf. You guys are set for one heck of a ridge to set up shop.


Just what I want to hear, drought will start to speed up even more
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Cooking and drying out like a rag doll in SE TX

Bryan, Texas (PWS)
Updated: 3 min 36 sec ago
93.0 °F Clear
Humidity: 17%
Dew Point: 42 °F
Wind: 4.0 mph from the SSE
Wind Gust: 9.6 mph
Pressure: 29.81 in (Falling)
Heat Index: 89 °F
Visibility: 10.0 miles
UV: 12 out of 16
Clouds: Clear -
(Above Ground Level)
Elevation: 311 ft

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Quoting weathermanwannabe:
752. StormChaser81 2:48 PM EDT on April 26, 2010

You are correct; I just looked at some of the NOAA information and it will take some time, if, the ROV's are able to shut it off at that depth......


They gave up on the ROV's and now are looking to build a dome over the oil pipe and contain the oil coming off, but this will be the deepest doming ever done and they have there doubts about if it will work or not.

The next step will be drilling another hole next to the existing one to release pressure off the well, but this will take a month or longer, its really shaping up to be a major oil event. They have only contained the heavy stuff the light stuff to the east is just free floating.
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Quoting Jeff9641:


Temps of 90 to 93 this weekend should really do the trick. Temps already near 80 along Florida's west coast.


Oh the first 10 days of May are going to blowtorch the temps both in the air and water around the gulf. You guys are set for one heck of a ridge to set up shop.
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742....nice graphic...
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752. StormChaser81 2:48 PM EDT on April 26, 2010

You are correct; I just looked at some of the NOAA information and it will take some time, if, the ROV's are able to shut it off at that depth......
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754. IKE
12Z CMC shows an east-PAC system...
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7-day AVHRR SST Anomaly composite:

There is some warming going on in the Gulf of Mexico, especially the shelf waters.

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Quoting weathermanwannabe:


No problem.... :)...It's an ecological disaster any way you look at it unless they can shut off the leak sometime today and dissipate the oil with their counter-measures before it reaches the coastline......


Trust me its going to be a little while before they can even stop the oil leak. Its 5000 ft below sea level and this will be the deepest shut off ever in the history of oil events.

I have a feeling it will be almost two weeks or more to get the oil shut off.
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Quoting StormChaser81:


I wasnt trying to be mean at all.

Just making the facts straight, sorry for coming off like that.


No problem.... :)...It's an ecological disaster any way you look at it unless they can shut off the leak sometime today and dissipate the oil with their counter-measures before it reaches the coastline......
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Quoting weathermanwannabe:


Just quoting what the Coastie just said on National Radio.....Don't know when they captured that soundbite.....


I wasnt trying to be mean at all.

Just making the facts straight, sorry for coming off like that.
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Quoting weathermanwannabe:


Just quoting what the Coastie just said on National Radio.....Don't know when they captured that soundbite.....




The scale Bar is 0 to 50 miles.
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Quoting StormChaser81:


They dont know what there talking about.

65 to 70 miles from the LA.

100+ miles from the AL/FL Border.


Just quoting what the Coastie just said on National Radio.....Don't know when they captured that soundbite.....
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Quoting weathermanwannabe:
Just came back from lunch and heard a Coast Guard spokeman say on NPR that the oil slick in the Gulf is 600 miles in diameter and 30 miles from the coast..........Great timing in terms of the renewed debate on offshore drilling....Lets pray that the slick does not make it to the coastline and become an ecological disaster for the region.


They dont know what there talking about.

65 to 70 miles from the LA.

100+ miles from the AL/FL Border.
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Quoting Chicklit:
Good afternoon.
Who pays for oil spills and who monitors clean up?


Federal Government pays and the oil companies from a Tax for oil production.
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Just came back from lunch and heard a Coast Guard spokeman say on NPR that the oil slick in the Gulf is 600 miles in diameter and 30 miles from the coast..........Great timing in terms of the renewed debate on offshore drilling....Lets pray that the slick does not make it to the coastline and become an ecological disaster for the region.
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Good afternoon.
Who pays for oil spills and who monitors clean up?
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hello!!!!

a full year of
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Quoting SomeRandomTexan:
The Panama spin has some 850 vorticity to it. It just seems awefully early for anything so spin up down there. Water temps would support a depression to say the least if shear values were to cooperate...

well look like it is
Link
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pretty slow day in here so far...
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The Panama spin has some 850 vorticity to it. It just seems awefully early for anything so spin up down there. Water temps would support a depression to say the least if shear values were to cooperate...
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This is USF SST's high resolution map.
The green Dots are the bounding box for the oil rig. The light blue is the oil sheen on the surface.

Were are very worried about the loop current getting a hold of some of the sheen, because it will make a bee line for the FL Keys and it wont be pretty.

The loop current as it heats up move north and through eddys off that can change the movement of oil.

Oil is more of a wind driven event.
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737. Skyepony (Mod)
Odds are rising on a weak storm forming in the EPAC that landfalls on Central America.
Member Since: August 10, 2005 Posts: 174 Comments: 38167
NWS Jackson Mississippi

April 23-24, 2010 Tornado Outbreak

It must be stressed that all of this information is preliminary and subject to later adjustment. Tornadoes of this magnitude require a tremendous amount of survey and analysis. We will provide updates as additional information is available.

Preliminary Storm Survey Information from Tallulah Louisiana to Durant Mississippi as of 4/25/2010.

NWS survey teams have surveyed the path of the storm from its start from west of Tallulah, Louisiana to as far as Durant, Mississippi. Tornado damage, much of it strong, was found along the entire path...at least in those areas accessible by road.

Preliminary information from surveys of the track:

Rating: EF-4 with maximum winds of 170 mph.

Path length: 97 miles...this length will increase as more damage is surveyed today.

Maximum Width: 1.75 miles

Casualties: 12 total fatalities with dozens of injuries

A number of areas of EF-3 damage with estimated winds of 150 to 165 mph were found along the path. Two areas of EF-4 damage with maximum winds of 170 mph were found...one in Yazoo City...and the other in Holmes county.
Member Since: June 28, 2006 Posts: 25 Comments: 8360
hey guys after taking a long look at the sat I am seeing a few spins in the SW Carib and EPac
one near 10N 80W moving NW in the SW Carib and 8N 87W EPac
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Jeff co-founded the Weather Underground in 1995 while working on his Ph.D. He flew with the NOAA Hurricane Hunters from 1986-1990.