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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Quoting gordydunnot:
Bordonaro, Lets hope all the canes that form this year play for FSU and go wide right. Please not down the middle right over hometown.

Comparisons I watched on Joe bastardi's video shows the E Coast of the US might get hit hard, but it's way too early to say!!
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Quoting JRRP:


El Niño almost disappears


Nice comparison. That coolest spot in the Pacific near 140W is where the subsurface cold waters are closest to surfacing. The Gulf of Mexico looks to be warming up a bit too.
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683. IKE
138 hours on the 12Z GFS pulls it into the Atlantic side....

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Quoting Bordonaro:
#673, the Tropical Atlantic in the MDR is getting warmer, what a season will come out of this!!


With a weaker than normal high forecast to persist, dust low & temps high it's rather troubling to think we still have a good solid 2 months of heating before the madness begins.
Member Since: January 30, 2010 Posts: 0 Comments: 3259
681. IKE
A tropical storm in the east-PAC in 120 hours on the 12Z GFS?...

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This post moved to my blog instead.
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Bordonaro, Lets hope all the canes that form this year play for FSU and go wide right. Please not down the middle right over hometown.
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Quoting 1900hurricane:

Also, look at the anomalies in the Gulf, and in particular along the upper Texas coast. What a reversal!

Yes, that is quite a shock! Amazing what 13 hours of the hot TX sun can do, after several weeks of relative bright sun and light winds.
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Quoting TampaSpin:
I just realized this....i have not been on a lot lately....

DATE and TIME (UTC) LAT-ITUDE LONG-ITUDE MAG-NITUDE DEPTH km REGION
25-APR-2010 02:10:41 27.76 -97.89 4.0 5.0 NEAR COAST OF TEXAS

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Quoting Bordonaro:
#673, the Tropical Atlantic in the MDR is getting warmer, what a season will come out of this!!

Also, look at the anomalies in the Gulf, and in particular along the upper Texas coast. What a reversal!
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I just realized this....i have not been on a lot lately....

DATE and TIME (UTC) LAT-ITUDE LONG-ITUDE MAG-NITUDE DEPTH km REGION
25-APR-2010 02:10:41 27.76 -97.89 4.0 5.0 NEAR COAST OF TEXAS
Member Since: September 2, 2007 Posts: 177 Comments: 20430
#673, the Tropical Atlantic in the MDR is getting warmer, what a season will come out of this!!
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673. JRRP


El Niño almost disappears
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Quoting TampaTom:
<--- shakes blog violently.

Thing must be broken...

Everyone must be exhausted from following the numerous tornadoes from Saturday!!
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Looks like the Bahamas will get some real good rains today.
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<--- shakes blog violently.

Thing must be broken...
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669. JRRP
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Lord I was born a rambling man.
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A portion of the Area Forecast Discussion from NWS Norman, OK, home to the SPC, 4:26AM CDT 4-26-10:

STILL A LOT OF VARIANCE REGARDING EVOLUTION OF THE WESTERN TROF
LATE WEEK. UPPER LOW OVER CANADIAN MARITIMES STILL LIKELY TO PLAY
INTO DEVELOPMENTS UPSTREAM BY HOLDIING THE RIDGE FARTHER W OVER
THE EASTERN CONUS. THIS IN TURN WILL BE AN OBSTACLE TO ANY
EASTWARD PROGRESSION OF THE WESTERN-CONUS TROF. WE THINK THE
GFS/UKMET ARE IN ERROR BY DRIVING THE UPPER TROF INTO THE PLAINS
TOO AGGRESSIVELY ON THURSDAY. MORE LIKELY SCENARIO WOULD BE A
SMALLER PART OF THE WESTERN TROF COMING OUT AND BEING DIVERTED
MORE TO THE NE BY THE DOWNSTREAM RIDGE... AND A LARGER PART OF IT
HANGING BACK OVER THE SW. THIS SCENARIO IS DEPICTED BETTER BY THE
LATEST NAM... AND PERHAPS EVEN BETTER YET BY THE ECMWF. AS SUCH WE
HAVE ALMOST ENTIRELY BYPASSED THE GFS AND RELATED GUIDANCE FOR THE
LONGER-RANGE FORECAST GRIDS THIS MORNING. MAX/MIN TEMPS ARE
BASICALLY CONSENSUS... BLENDED FROM SURROUNDING GRIDS. WE HAVE
BACKED OFF ON THE POPS THU... LIMITING THEM TO SLIGHT CHANCES NEAR
THE STRENGTHENING DRYLINE OUT W ALTHOUGH CAPPING AND LIMITED
MOISTURE RETURN ARE LIKELY TO LIMIT CONVECTIVE POTENTIAL DURING
THE DAY. BETTER CHANCES THU NIGHT PER ECMWF PRECIP FORECAST AS LLJ
STRENGTHENS - AS DOES THE DRYLINE - AND LL MOISTURE CONTINUES TO
IMPROVE. IN GENERAL WE ARE FOLLOWING ALONG MORE WITH THE ECMWF IN
THE LATTER FORECAST PERIODS... WHICH SUGGEST A TEMPORARY BREAK IN
THE CONVECTIVE POTENTIAL FRI AND FRI NIGHT AT LEAST IN OUR W. BUT
WITH A BIG LONGWAVE TROF FROM NCENTRAL TO SW CONUS AND MDT-STRONG
SW FLOW ALOFT OVER THE AREA... AND AN UNCONSTRAINED RETURN FLOW OF
HIGH-OCTANE GULF MOISTURE... PRECIP AND T-STORM CHANCES GENERALLY
WILL REMAIN HIGH GOING INTO NEXT WEEKEND AND SEVERE WEATHER IS
ALMOST CERTAIN. DAY-TO-DAY DETAILS REMAIN LESS SO. WELCOME TO
LATE APRIL AND EARLY MAY IN THE SOUTHERN PLAINS.
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Quoting Snowlover123:

How many total severe weather reports were in the past 3 days?

Th-Su a total of 631 Storm Reports!!

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Starts all over again come Thursday!
Member Since: September 2, 2007 Posts: 177 Comments: 20430
Quoting TampaSpin:
The Lightning last evening was as much as i had seen in a long time.....i shut the computer down for the first time in maybe 2 years.



Yeah the lightning was absolutely amazing!


Well I have definitely seen thunderstorms with that much lightning before, we had a few like that last year. But that normally only comes with the wet season...

I have NEVER seen thunderstorms like that in our dry season though! Heck many times we don't see lightning at all with cold fronts, just showers, that was an April night to remember!


Just a reminder, when you live in the lightning capitol of the U.S. Even the driest month of the year can give a light show on occasion.
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Quoting Bordonaro:
The Preliminary Storm Reports from SA 4-24-2010:

How many total severe weather reports were in the past 3 days?
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ain't the same without Dickie
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Quoting Patrap:
Seee..

I need another coffee..Bob


Well my grand daughter knocked over my "Irish Coffee" flavored "Monster" Energy drink.

Time to make a small, strong pot of coffee :0)
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The Preliminary Storm Reports from SA 4-24-2010:
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Seee..

I need another coffee..Bob

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Yea the lightning in Indialantic kept me up between 2am and 3am, it was amazing, felt like summer again :)
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Quoting Patrap:
Only 7:56 am I think up in Alaska.

They're 3 hours behind, it's about 7AM there.
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Only 7:56 am I think up in Alaska.

Here in CDT land,..I cant type till @ least 9:30.

Coffee,paper,..news,..dog walk.
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Myself and many others feel the dates should be moved to Start the East Pac,May 1,and the Atlantic May 15th.

As the trend has been for things to begin 2 weeks or so earlier.


Awareness would increase earlier as well.


And thats a good thing always.




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Quoting belizeit:
I see in only 3 days we will have a tropical storm in the pacific

Good morning. I wonder whether Levi32 is around this morning?
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I see in only 3 days we will have a tropical storm in the pacific
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On the left side of the LSU ESL page is how I and many others monitor the wetlands in great detail.

Its the first Line of defense for any Coastline with them from Hurricane Surge.


Coastal Studies Institute

School of the Coast and Environment

Department of Oceanography and Coastal Sciences

WAVCIS Lab

Southern Regional Climate Center

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The gulf is starting to boil . Abig change in only one day
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The water being dumped from Lake O also does a number on our inshore reefs. You can really see it from the beach on out going tide when you have the blue ocean water and the brown water line. Looks like at this rate of dumping early the lobster we be elsewhere this summer. I'll have to dive the reef areas away from Fort Pierce inlet for good vis.
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mornin' Devil Dog

A "oooh Rah" Monday to yas "irg",
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Looks great other than lack of convection. Probably due to land interaction. GFS liking this less today: (120 hours)

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Wetland loss and restoration is a global issue.
From the everglades to Se Texas and Louisiana to The Chesapeake to Rangoon.

In Myanmar,..the Irrawaddy Delta region was devastated by Cyclone Nargis in Spring of 08.


Hundreds of Thousands died...as the Mangrove loss allowed the Surge from Nargis to inundate Millions.

Dr Jeff Masters explains here on that and other matters after Nargis.

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The Lightning last evening was as much as i had seen in a long time.....i shut the computer down for the first time in maybe 2 years.
Member Since: September 2, 2007 Posts: 177 Comments: 20430
mornin' Devil Dog
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Yer welcome alex, sharing is what we do best.
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From Th-Su a total of 132 Tornado Reports from the SPC. It will be interesting to see what the total tornado count will be for that time period.
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Thank you patrap.
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Quoting weathermanwannabe:


Your point is well taken (I forgot about the Sugar interests and was thinking about canal flooding in the developed areas).....Development, canals and agricuture have ruined the Everglades......


one of the sadder things to guys like you and I that hunt snook, is the discharges were still ongoing during spawning season and totally negated the snook and redfish spawn in 2004-05-06 at the St. Lucie inlet. So, not only did they turn the estuary into a desert killing all the oysters and sea grasses, it prevented the successful spawn of two sport fish in the southern Indian River Lagoon.
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Good Morning WU bloggers! How is everyone?

Folks in C/S FL have been hot hard with heavy rain, lightning and a few warnings. Hopefully, in the next few hours, the area of instability will move away, allowing for clearing.

Later in the week, the Southern and Central Plains will be under the gun:
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2010 Tropical www.canefever.com Links dujour'

Computer Models
An Explanation of Computer Models
WeatherOnline Forecasts
Florida State University Model Page
FSU COAPS
Ohio State University Model Page
Penn State University e-Wall
PSU Development Favorability
NCEP Model Guidance
NCEP Tropical Cyclogenesis
NOAA Wave Forecast
SFWMD Spaghetti Plots
Skeetobite Weather
NOGAPS and GFS by global region
GFS WUnderground
NOGAPS
UKMET United Kingdom Model
ECMWF
ECMWF 00Z e-Wall
ECMWF 12Z e-Wall
ECMWF Tropical Atlantic 00Z
ECMWF Tropical Atlantic 12Z
ECMWF Seasonal Range Forecasts
Colorado State University Model Guidance
MIT Model Guidance
Environment Canada
WRF Atlantic
WRF Caribbean
JAMSTEC Seasonal Forecast
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Quoting TampaSpin:

FLUS42 KMFL 261246
HWOMFL

HAZARDOUS WEATHER OUTLOOK FOR SOUTH FLORIDA
NATIONAL WEATHER SERVICE MIAMI FL
846 AM EDT MON APR 26 2010

FLZ063-066>075-168-172>174-270400-
GLADES-HENDRY-INLAND PALM BEACH-METRO PALM BEACH-COASTAL COLLIER-
INLAND COLLIER-INLAND BROWARD-METRO BROWARD-INLAND MIAMI DADE-
METRO MIAMI DADE-MAINLAND MONROE-COASTAL PALM BEACH-
COASTAL BROWARD-COASTAL MIAMI DADE-FAR SOUTH MIAMI DADE-
846 AM EDT MON APR 26 2010

...STRONG TO LOCALLY SEVERE STORMS POSSIBLE ALL OF SOUTH FLORIDA...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH FLORIDA.

.DAY ONE...TODAY AND TONIGHT

THUNDERSTORMS: THUNDERSTORMS ARE LIKELY ACROSS ALL OF SOUTH
FLORIDA TODAY. ANY THUNDERSTORM COULD PRODUCE FREQUENT TO EXCESSIVE
LIGHTNING, VERY HEAVY RAINFALL, STRONG WIND GUSTS AND SMALL HAIL.
ADDITIONALLY THERE IS AN ISOLATED TORNADO THREAT ACROSS THE REGION.

TORNADOES: THE STRONGEST STORMS MAY BE CAPABLE OF PRODUCING AN
ISOLATED, BRIEF TORNADO OR TWO ACROSS SOUTH FLORIDA TODAY.

WIND: ISOLATED SEVERE WIND GUSTS ARE POSSIBLE WITH THE STRONGEST
THUNDERSTORMS TODAY. THESE WIND GUSTS COULD BRIEFLY EXCESS 58 MPH.

HAIL: THE STRONGEST STORMS MAY PRODUCE SMALL HAIL UP TO PENNY SIZE
ACROSS THE REGION TODAY.

WATERSPOUTS: WATERSPOUTS MAY FORM WITH LITTLE OR NO WARNING ACROSS
ANY OF THE COASTAL WATERS TODAY.

FLOODING: LOCALLY HEAVY RAINFALL IS LIKELY WITH THUNDERSTORMS AS
THEY PROGRESS SOUTHEAST TODAY. THESE RAINS MAY CAUSE LOCALIZED
STREET FLOODING AS WELL AS FLOODING OF URBAN AND POOR DRAINAGE
AREAS. THIS MAY BE ESPECIALLY LIKELY FROM PALM BEACH COUNTY
THROUGH GLADES AND HENDRY COUNTIES THIS MORNING.

RIP CURRENTS: SOUTHWESTERLY WINDS OF 10 TO 20 MPH WILL LEAD TO A
MODERATE RISK OF RIP CURRENTS AT THE GULF COAST BEACHES TODAY.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

NO HAZARDOUS WEATHER IS ANTICIPATED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

WIDESPREAD SPOTTER ACTIVATION IS NOT ANTICIPATED, HOWEVER
INDIVIDUAL SPOTTERS ARE ENCOURAGED TO REPORT HIGH WIND, HAIL AND
FLOODING TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN
MIAMI.

FOR MORE INFORMATION...VISIT THE NATIONAL WEATHER SERVICE IN
MIAMI WEBSITE AT WWW.WEATHER.GOV/MIAMI.

$$
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Good maorning tampaspin and everyone else man what a storm early this morning the best lightning show ive seen in a long time and the rain was amazing now i have a question whats a good site to see the models? thank thank you
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About JeffMasters

Jeff co-founded the Weather Underground in 1995 while working on his Ph.D. He flew with the NOAA Hurricane Hunters from 1986-1990.