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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Mornin' Ike
Member Since: September 23, 2006 Posts: 1 Comments: 2518
584. IKE



Member Since: June 9, 2005 Posts: 23 Comments: 37858
583. IKE
6Z GFS at 114 hours...

Member Since: June 9, 2005 Posts: 23 Comments: 37858
we got nothing every hail storm and mesocyclone went 15 miles north of us and we didn't get a drop of rain, Maryland always gets all the intense storms.
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Last night was real intense! It was thundering so badly I lost power.
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severe thunderstorm warning issued for palm beach county
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hey folks. just got woken up by some really loud rumbling. checked the radar and it looks as if sw fla is gonna get smacked pretty good.
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Sorry I couldn't resist the picture ha

Have a good one all (:
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The wind is starting to pick up here in Port Charlotte. Turning into quite the light show outside too.
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Me too- safe one to all! :))
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nite everyone
Member Since: September 2, 2007 Posts: 178 Comments: 20439
Quoting wunderkidcayman:
hey tampa spin any comments on the sw carib/epac system


i will look at it tomorrow as my phone although nice is not ideal to look at things
Member Since: September 2, 2007 Posts: 178 Comments: 20439
Quoting TampaSpin:


not wishing on anyone but this was a pretty bad storm was a rain maker


I tried to post lightening strikes during the storm at post #552. Pretty incredible.
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Quoting swampliliy:
I lost it in the first wave about 745pm til about 11pm. Nasty amount of lightening on second wave.

Looks like it's sliding south now.


not wishing on anyone but this was a pretty bad storm was a rain maker
Member Since: September 2, 2007 Posts: 178 Comments: 20439
hey tampa spin any comments on the sw carib/epac system
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I lost it in the first wave about 745pm til about 11pm. Nasty amount of lightening on second wave.

Looks like it's sliding south now.
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no i did not lose power but lightning was really bad
Member Since: September 2, 2007 Posts: 178 Comments: 20439
Quoting TampaSpin:
im back using my cell


Hey TS- you lose power over there?
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im back using my cell
Member Since: September 2, 2007 Posts: 178 Comments: 20439
Quoting Jedkins01:



you're definitely right about that, for I was talking about the summer months, this air mass seems to be unusually warm with depth for April though. For example, the temp at lowest reached 69 at my weather station, despite these monster storms with rainfall rates up to 5 inches per hour at one point, as well as massive down burst winds, 69 degrees is very warm for rain cooled air after a severe thunderstorm in april.

We have also totaled over 3.50 since earlier this evening...
It looks like the lower Tampa Bay area is being pounded. Almost the whole of the bay region is covered with bright red. Looks like some bowing near Sarasota-Bradington. I took a peek at the water vapor image and the the entire line should get a nudge to the south in a few hours. I would imagine to the relief of the waterlogged communities.
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Quoting hydrus:
I understand. but this is still April and believe that hail is still a threat. Just my harmless opinion of course.



you're definitely right about that, for I was talking about the summer months, this air mass seems to be unusually warm with depth for April though. For example, the temp at lowest reached 69 at my weather station, despite these monster storms with rainfall rates up to 5 inches per hour at one point, as well as massive down burst winds, 69 degrees is very warm for rain cooled air after a severe thunderstorm in april.

We have also totaled over 3.50 since earlier this evening...
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Quoting weatherman874:


do you think it would be more likely for a T.D in the Caribbean or the Pacific
With all this severe weather , I have not had time to evaluate where it might form.
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Quoting Jedkins01:


we have thunderstorms with tops that high often in the wet season during seas breeze collisions, and still usually no hail, the air mass is just to tropical with depth, the hail melts into just big rain drops before it reaches the ground.
I understand. but this is still April and believe that hail is still a threat. Just my harmless opinion of course.
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Quoting StSimonsIslandGAGuy:
At least the Taiwan earthquake looks far enough offshore not to have done a lot of damage.
I just checked the weather chart for that area. That front has officially become stationary over Florida. Flooding will become a major hazard for a large part of the watch area. If this line does not shift or weaken, there could be record flash flooding in many places.
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Quoting hydrus:
At 50,000 feet some hail is almost a certainty.jmo


we have thunderstorms with tops that high often in the wet season during seas breeze collisions, and still usually no hail, the air mass is just to tropical with depth, the hail melts into just big rain drops before it reaches the ground.
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Quoting hydrus:
Looks like it actually has the potential to become a T.D. in a few days. jmo


do you think it would be more likely for a T.D in the Caribbean or the Pacific
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Quoting wunderkidcayman:
so guys what do you think of uor sw carib/epac system
Looks like it actually has the potential to become a T.D. in a few days. jmo
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so guys what do you think of uor sw carib/epac system
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Quoting Skyepony:
Central FL helicity & wind forecast.
Bradington looks like it will be hit hard.
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Lightening strikes:


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Quoting PalmBeachWeatherBoy:
Any precautions or worries i should have before going to bed? im in west palm beach, have to wake up at 6 am to get ready for class, that line of t-storms north of here looks mean, hope i dont get a rude awakening


You'll be ok, the line is taking it's time. It will be tomorrow late morning for us now.
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gotta shut my computer off as lightnining has got really bad and it is absoultely pouring...
Member Since: September 2, 2007 Posts: 178 Comments: 20439
Quoting Skyepony:
Central FL helicity & wind forecast.
NEXRAD is detecting 8 mesocyclones in that region
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Any precautions or worries i should have before going to bed? im in west palm beach, have to wake up at 6 am to get ready for class, that line of t-storms north of here looks mean, hope i dont get a rude awakening
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547. Skyepony (Mod)
Central FL helicity & wind forecast.
Member Since: August 10, 2005 Posts: 161 Comments: 37331
Quoting Jedkins01:


we already had a gust to 56 with the earlier squall line, and lightning with this thing is FAR worse then earlier, looks like a daggum strobe light outside!

that being said, when the line gets here, we may see some serious downbursts, im getting ready hunker down, only about 5 min or so till impact, may get hail too with those 50,000 ft tops, but its Florida, so probably too warm for any damaging hail. I'll pray for no tornados, that's for sure!

At 50,000 feet some hail is almost a certainty.jmo
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Nearly 4 inches of rain already.
Member Since: September 2, 2007 Posts: 178 Comments: 20439




HERE WE GO WITH ROUND 2! This is starting to get very serious with inland flooding!

NOAA WEATHER RADIO LINK
Member Since: September 2, 2007 Posts: 178 Comments: 20439
its about time they issue a warning on me!
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SEVERE THUNDERSTORM WARNING
FLC057-081-103-260500-
/O.NEW.KTBW.SV.W.0026.100426T0416Z-100426T0500Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
1216 AM EDT MON APR 26 2010

THE NATIONAL WEATHER SERVICE IN RUSKIN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
WESTERN HILLSBOROUGH COUNTY IN FLORIDA.
NORTHWESTERN MANATEE COUNTY IN FLORIDA.
PINELLAS COUNTY IN FLORIDA.

* UNTIL 100 AM EDT

* AT 1206 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
FROM TOWN N COUNTRY TO 27 MILES WEST OF ANNA MARIA ISLAND...OR
ALONG A LINE EXTENDING FROM 9 MILES NORTHWEST OF TAMPA TO 28 MILES
SOUTHWEST OF SAINT PETERSBURG BEACH...AND MOVING EAST AT 45 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
TAMPA.
SAINT PETERSBURG.
BRANDON.
RUSKIN.
TREASURE ISLAND.
THONOTOSASSA.
BRADENTON BEACH.
ANNA MARIA.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF
YOUR HOME OR BUSINESS. THIS STORM HAS THE POTENTIAL TO CAUSE SERIOUS
INJURY AND SIGNIFICANT DAMAGE TO PROPERTY.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 700 AM EDT MONDAY MORNING FOR
SOUTHWESTERN FLORIDA.

&&

LAT...LON 2793 8286 2807 8258 2808 8221 2748 8220
2746 8271 2754 8275 2751 8270 2761 8258
2780 8241 2789 8241 2792 8247 2782 8247
2786 8259 2764 8265 2757 8275 2767 8273
2782 8284 2791 8286
TIME...MOT...LOC 0413Z 261DEG 39KT 2805 8253 2758
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Quoting FloridaTigers:
I have you all beat. I go to the same school as JFV AND I have seen him around. I only know because of the years of having his picture as his profile picture. Theres no mistaking it.


oh gosh...

im sorry! ha

it was just surprising to meet someone form that school because I go to Purdue, she goes to FIU, and her brother goes to Purdue. they are from Miami
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we are in the same boat then lol, im thinking of taking a drive to the pear but i dont know if that would be safe.
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Quoting tampahurricane:
Hear in st.pete it looks like it is going to get really nasy. might have to pull and all nighter than go to school in the morning.



thats what im doing tonight!
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Member Since: July 15, 2006 Posts: 169 Comments: 53296
Hear in st.pete it looks like it is going to get really nasy. might have to pull and all nighter than go to school in the morning.
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Quoting hydrus:
I would not be surprised if your area receives wind gusts over 60 mph with that cluster. Possible waterspout wouldnt be out of the question either.


we already had a gust to 56 with the earlier squall line, and lightning with this thing is FAR worse then earlier, looks like a daggum strobe light outside!

that being said, when the line gets here, we may see some serious downbursts, im getting ready hunker down, only about 5 min or so till impact, may get hail too with those 50,000 ft tops, but its Florida, so probably too warm for any damaging hail. I'll pray for no tornados, that's for sure!

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Quoting KEEPEROFTHEGATE:
I am looking at the Storm Prediction Center,s radar of that line across Florida. It really does look Dangerous. And it is growing.
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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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