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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Weather456 had a child and is busy with family life. He may check in once the season starts.
Member Since: September 10, 2007 Posts: 0 Comments: 11149
Quoting jeffs713:

Penn State
Colorado State
North Carolina State
University of Michigan
Florida Int'l Univ
University of Florida


UF has no Met department, Florida state does
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LMAO!!! I can imagine an experience with JFV.

I can't!!! Not without breaking out in hives!!!!!
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Quoting jeffs713:

Penn State
Colorado State
North Carolina State
University of Michigan
Florida Int'l Univ
University of Florida
Thanks. I like Penn State. Hope to go there in the future.
Member Since: September 2, 2009 Posts: 130 Comments: 21193
Quoting MiamiHurricanes09:
What happened to 456 that he isn't posting anymore?
I think he just got busy with life things....
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Juvenile Forecasting Vocation

;)
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Quoting MiamiHurricanes09:
A little off topic but what do you all think is the best meteorology school?

Penn State
Colorado State
North Carolina State
University of Michigan
Florida Int'l Univ
University of Florida
Member Since: Posts: Comments:
Quoting Levi32:


Mine was better :P
Could have stood for, just for vanity, by looking at the avatar he had up.
Member Since: September 27, 2007 Posts: 1 Comments: 21173
Levi32 guess what, the 30 day SOI index continues to move upwards,tonight at 15.0.

Link
Member Since: April 29, 2009 Posts: 75 Comments: 14243
Quoting GeoffreyWPB:


Juvenile Forecasting Vocation


Mine was better :P
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Quoting hydrus:
What does JFV actually stand for.
His initials.
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Quoting hydrus:
What does JFV actually stand for.


Juvenile Forecasting Vocation
Member Since: September 10, 2007 Posts: 0 Comments: 11149
Quoting BahaHurican:
ABT wx456, I think he still plans to post to his own blog during the season, just not to Dr. Master's blog. I'm not sure how things will work out for him timewise, though I don't think he will be able to resist ALTOGETHER a season as busy as this one is forecast to be .......
What happened to 456 that he isn't posting anymore?
Member Since: September 2, 2009 Posts: 130 Comments: 21193
Quoting SouthALWX:

everyone says penn state. and I agree they are good, but it has been my experience that they focus alot on theory rather than practicality.


Theories = progress and learning.
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Quoting SouthALWX:

everyone says penn state. and I agree they are good, but it has been my experience that they focus alot on theory rather than practicality.
Yes. Today it is my theory that there is a 50% chance of precipitation. :}
Member Since: September 27, 2007 Posts: 1 Comments: 21173
12z CMC showing an area of low pressure in the EPAC, looks good.

Member Since: September 2, 2009 Posts: 130 Comments: 21193
ABT wx456, I think he still plans to post to his own blog during the season, just not to Dr. Master's blog. I'm not sure how things will work out for him timewise, though I don't think he will be able to resist ALTOGETHER a season as busy as this one is forecast to be .......
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Quoting Levi32:


Penn State is the best in the world, based on what I know.
I heard that Oklahoma state is very good.
Member Since: September 2, 2009 Posts: 130 Comments: 21193
Quoting SouthALWX:

everyone says penn state. and I agree they are good, but it has been my experience that they focus alot on theory rather than practicality.
Lmao.
Member Since: September 27, 2007 Posts: 1 Comments: 21173
Quoting MiamiHurricanes09:
A little off topic but what do you all think is the best meteorology school?


Penn State is the best in the world, based on what I know.
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Quoting hydrus:
Penn State or U.O.F....:)jmo

everyone says penn state. and I agree they are good, but it has been my experience that they focus alot on theory rather than practicality.
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Quoting hydrus:
What does JFV actually stand for.


Jolly Forecaster Vocation

:)
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Central American region completely scattered with showers and thunderstorms. With the way things are looking I don't think there will be much tropical development there in the next 72 hours.
Member Since: September 2, 2009 Posts: 130 Comments: 21193
Quoting MiamiHurricanes09:
A little off topic but what do you all think is the best meteorology school?
Penn State or U.O.F....:)....jmo
Member Since: September 27, 2007 Posts: 1 Comments: 21173
Quoting MiamiHurricanes09:
A little off topic but what do you all think is the best meteorology school?

south alabama :) but you might say Im biased ...
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Quoting MiamiHurricanes09:
That was his name until he changed it 4 million because he would keep on getting banned. I think he calls himself 'weatherbro' now.
I see. I wonder how he can do that? Get around a permanent ban.
Member Since: September 27, 2007 Posts: 1 Comments: 21173
A little off topic but what do you all think is the best meteorology school?
Member Since: September 2, 2009 Posts: 130 Comments: 21193
Quoting DestinJeff:


man, going from Homer to Fairbanks ... that's quite the change!


Lol, better than going straight to the lower 48 I guess. I haven't been in a city bigger than Anchorage so that would be a little overwhelming for my first year.
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Quoting hydrus:
What does JFV actually stand for.
That was his name until he changed it 4 million because he would keep on getting banned. I think he calls himself 'weatherbro' now.
Member Since: September 2, 2009 Posts: 130 Comments: 21193
Quoting MiamiHurricanes09:
LMAO!!! I can imagine an experience with JFV.
What does JFV actually stand for.
Member Since: September 27, 2007 Posts: 1 Comments: 21173
Quoting stormwatcherCI:
Sure would like to hear that story. LOL Anyway, the weather here is kinda windy and hot. Doesn't look like that rain over Cuba will reach far enough south for us to get any but sure am hoping for it.
LMAO!!! I can imagine an experience with JFV.
Member Since: September 2, 2009 Posts: 130 Comments: 21193
Quoting tornadodude:
Lol I met a girl that goes to school with JFV at a party saturday night
Sure would like to hear that story. LOL Anyway, the weather here is kinda windy and hot. Doesn't look like that rain over Cuba will reach far enough south for us to get any but sure am hoping for it.
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Quoting nrtiwlnvragn:
Another 2010 Atlantic Tropical Cyclone Outlook, this one from North Carolina State University.

The 2010 Atlantic hurricane season is forecast to be above normal. The expected number of
named storms developing in the Atlantic basin is significantly higher than the climatologies of
the last two decades; however, the number of landfalling hurricanes and tropical storms along the
US Gulf and Atlantic coasts are not significantly differenta from the climatologies of the last two
decades. From June 1 to November 30, 2010, we expectb 14-19 named storms to be formed in
the Atlantic basin (Fig.1), which is higher that climatologies of the past 20 years and that of the
past fifty years (9-11 storms). 7-11 storms are expected to become hurricanes (Fig.2). There is
an approximate 80 percent chance that at least one tropical cyclone will hit the U.S. Southeast
Coast (Fig.3), and an approximate 70 percent chance that it will be of hurricane status (Fig.4).
For the Gulf of Mexico, we expect 4-7 named storms to be formed (Fig.5), of which 2-4 become
hurricanes (Fig.6). 3-6 named storms (Fig.7) are expected to make landfall along the Gulf Coast.
There is an approximate 80 percent chance at least 1 of the landfalling storms will be of
hurricane status (Fig.8). The chance for at least 1 major hurricane to hit the U.S. Gulf Coast is
approximately 55 percent (Fig.9).
Well, chances are that Florida will get more than 1 hurricane due to the location of the Bermuda high.
Member Since: September 2, 2009 Posts: 130 Comments: 21193
Stephen Hawking aliens warning: Should we hide?
Member Since: September 10, 2007 Posts: 0 Comments: 11149
Quoting Patrap:
90W
MTSAT-Floater RAINBOW

Pat, That CaneFever sight is da bom.
Member Since: September 27, 2007 Posts: 1 Comments: 21173
Another 2010 Atlantic Tropical Cyclone Outlook, this one from North Carolina State University.

The 2010 Atlantic hurricane season is forecast to be above normal. The expected number of
named storms developing in the Atlantic basin is significantly higher than the climatologies of
the last two decades; however, the number of landfalling hurricanes and tropical storms along the
US Gulf and Atlantic coasts are not significantly differenta from the climatologies of the last two
decades. From June 1 to November 30, 2010, we expectb 14-19 named storms to be formed in
the Atlantic basin (Fig.1), which is higher that climatologies of the past 20 years and that of the
past fifty years (9-11 storms). 7-11 storms are expected to become hurricanes (Fig.2). There is
an approximate 80 percent chance that at least one tropical cyclone will hit the U.S. Southeast
Coast (Fig.3), and an approximate 70 percent chance that it will be of hurricane status (Fig.4).
For the Gulf of Mexico, we expect 4-7 named storms to be formed (Fig.5), of which 2-4 become
hurricanes (Fig.6). 3-6 named storms (Fig.7) are expected to make landfall along the Gulf Coast.
There is an approximate 80 percent chance at least 1 of the landfalling storms will be of
hurricane status (Fig.8). The chance for at least 1 major hurricane to hit the U.S. Gulf Coast is
approximately 55 percent (Fig.9).
Member Since: Posts: Comments:
1971-2000 average mean SST's for April:



April 24, 2010 SST's:



Member Since: September 2, 2009 Posts: 130 Comments: 21193
Quoting DestinJeff:
I would like to say that I hope Levi32 doesn't disappear once the season gets going. Seem to remember he did last year.

His analysis is always very measured and thorough, and very much appreciated I think by many here.


I thank you for the compliment.

I can't guarantee I will be here all the time, as I am in the process of registering for college classes up in Fairbanks that start on September 2nd, and I have no clue what is waiting for me up there, so I can't know what my schedule will be like. I hope I can be here though....I have a feeling this will be a season I won't want to miss.
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See everyone in a few days (going out of town for a few).....Pray for the families of those lost with the tornadoes and pray that they get that oil spill in check somehow before it makes it to shore and affects wildlife and estuaries.......At the end of the day, all of this business as to Mother Nature is about trying to prevent loss of life.........WW
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Quoting StormW:
Good evening!
Good evening storm!
Member Since: September 2, 2009 Posts: 130 Comments: 21193
Sorry I meant lifetimes
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Hey guys arent you worried about the Northeast Florida/Georgia/South Carolina coast this year because a lot of people along that coastline particulary Georgia probably havent experienced a direct hit from a hurricane in their liftimes.
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Quoting DestinJeff:
I would like to say that I hope Levi32 doesn't disappear once the season gets going. Seem to remember he did last year.

His analysis is always very measured and thorough, and very much appreciated I think by many here.
Agreed 100%.

Quoting hydrus:
There will probably be a low forming in the Caribbean on the tail end of that front. could cause flooding concerns for someone.
Looking at current 850 MB vorticity I would say a low has already formed in that region.

Member Since: September 2, 2009 Posts: 130 Comments: 21193
Looks like all is well for the next 10 days:

Local Text Forecast for
Lake Worth, FL (33461)

Apr 26 Tonight
Mostly clear. Low near 65F. Winds W at 10 to 15 mph.

Apr 27 Tomorrow
Mainly sunny. High 83F. Winds W at 5 to 10 mph.

Apr 27 Tomorrow night
Clear. Low 67F. Winds W at 10 to 15 mph.

Apr 28 Wednesday
Times of sun and clouds. Highs in the upper 70s and lows in the upper 60s.

Apr 29 Thursday
Partly cloudy. Highs in the upper 70s and lows in the low 70s.

Apr 30 Friday
Slight chance of a thunderstorm. Highs in the low 80s and lows in the mid 70s.

May 1 Saturday
Mix of sun and clouds. Highs in the low 80s and lows in the mid 70s.

May 2 Sunday
Mix of sun and clouds. Highs in the low 80s and lows in the low 70s.

May 3 Monday
Mostly sunny. Highs in the low 80s and lows in the low 70s.

May 4 Tuesday
Mainly sunny. Highs in the low 80s and lows in the low 70s.

May 5 Wednesday
Abundant sunshine. Highs in the low 80s and lows in the low 70s.
Member Since: September 10, 2007 Posts: 0 Comments: 11149
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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.

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