Tornadoes rip through Dallas metro area

By: AngelaFritz , 9:36 PM GMT on April 03, 2012

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At least three tornadoes have ripped through the Dallas metro area this afternoon, one passing between Dallas and Fort Worth, bearing down on the Dallas-Fort Worth airport but narrowly missing to the east. The other two tornadoes passed east of Dallas, one touching down near the town of Forney, where there were reports of impacts to the high school. The DFW airport issued a ground stop for all incoming flights and grounded all planes at their airports, and a spokesman said they were sheltering passengers. The airport is now closed while they inspect the planes for hail damage, and can accept no incoming flights for lack of a place to put them.

Residential neighborhoods were completely destroyed in the Arlington tornado, and tractor trailers were tossed like toys. Extensive damage was done to the Green Oaks nursing home and rehab center, which is just east of Lake Arlington. The Arlington tornado was on the ground for approximately 30 minutes. In addition to the tornadoes, trained storm spotters were reporting hail up to three inches in diameter, which is approximately the size of a baseball.

The mayor and city council of Arlington, Texas declared a state of disaster for the city when, just an hour after the tornado had passed through, it was obvious that the area had sustained incredible damage.

Tornado warnings continue to be issued, and the potential for severe thunderstorms with and tornadoes will continue through the evening in eastern Texas, Oklahoma, southern Arkansas, and Louisiana. The convective outlook paints a good picture of the tornado potential for the rest of the evening. If you're in one of these regions, stay alert for tornado watches or warnings that may be issued.


Radar reflectivity of the tornadic thunderstorms as they passed over the Dallas metro area this afternoon. The storms that produced tornadoes are circled, and Arlington, Texas has been pointed out on the map.


Tornado warnings (red) and severe thunderstorm warnings (yellow) at the time two tornadoes were passing to the east and west of Dallas, Texas.


Video of the Arlington tornado developing as it crosses US-287 near Sublett Road, from Twitter user @wesstevens.



Video 2. Dramatic video of semi-trailers being tossed more than 100 feet in the air by the Lancaster, Texas tornado of April 3, 2012.

Angela

Forney Tornado (ClockworkLemon)
Tornado that hit Forney, TX 4/3/12
Forney Tornado
Forney Tornado (ClockworkLemon)
Tornado that hit Forney, TX 4/3/12
Forney Tornado
Iowa Hail (RevMac)
A co-worker was describing the severe storm that rolled through eastern Iowa Saturday night and mentioned golf ball sized hail that damaged his home. He produced this photo as evidence. I told Nathan I would share with the WU family.
Iowa Hail
Large Hail (wecarver50)
Hail from April 3 storms in Dallas, Tx
Large Hail

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Member Since: July 17, 2009 Posts: 68 Comments: 25088
Member Since: July 3, 2005 Posts: 419 Comments: 127374
Quoting Grothar:


I believe they are talking about another system which should be moving in that area tomorrow.


Indeed, note the front way back here still tonight.

This will be the 3rd meso system to come thru NOLA and Se La. the past 3 evenings from it,...the upper low.

Member Since: July 3, 2005 Posts: 419 Comments: 127374
Quoting FLWeatherFreak91:
This is from NWS Tampa:

AN AREA OF LOW PRESSURE WILL DEVELOP OVER THE SOUTHEAST
U.S. ON THURSDAY IN RESPONSE TO THE U/L LOW APPROACHING THE
REGION...WITH INCREASING CLOUDINESS AND A CHANCE OF THUNDERSTORMS
ACROSS WEST CENTRAL FLORIDA BY LATE IN THE DAY. SCATTERED SHOWERS
AND THUNDERSTORMS WILL PUSH ACROSS THE REGION THURSDAY NIGHT AND
SINK SLOWLY SOUTHEAST OVER THE AREA
. THE CHANCE OF RAIN WILL
DECREASE FRIDAY MORNING AS THE FRONT PUSHES SOUTH OF THE AREA AND
DECREASING CLOUDINESS OCCURS FRIDAY AFTERNOON.

Looks like their forecast was a little slow lol.


I believe they are talking about another system which should be moving in that area tomorrow.
Member Since: July 17, 2009 Posts: 68 Comments: 25088
Quoting LargoFl:
anyone notice the hook in this line of storms?, hope no tornado's tonight


that line has shown rotation on the Northern end, and even a TVS sig for as time.
Member Since: July 3, 2005 Posts: 419 Comments: 127374
Quoting Patrap:
anyone notice the hook in this line of storms?, hope no tornado's tonight
Member Since: August 6, 2011 Posts: 4 Comments: 36667
Quoting Articuno:

wtf is weather spark?
I've never heard of it.


It is a fairly new, neat site. Good for visually seeing current forecasts and past data for most weather observing sites in the country. Has sites all over the world. Nice way to see observations/forecasts in the context of climate normals and percentiles, as well.
Member Since: September 28, 2002 Posts: 5 Comments: 3159
Orleans
Flash Flood Watch
Statement as of 3:32 PM CDT on April 04, 2012

... Flash Flood Watch now in effect through Thursday morning...

The Flash Flood Watch is now in effect for

* portions of southeast Louisiana and southern Mississippi...
including the following areas... in southeast Louisiana...
Ascension... Assumption... East Baton Rouge... East Feliciana...
Iberville... Livingston... lower Jefferson... lower Lafourche...
lower Plaquemines... lower St. Bernard... lower Terrebonne...
northern Tangipahoa... Orleans... Pointe Coupee... southern
Tangipahoa... St. Charles... St. Helena... St. James... St. John
The Baptist... St. Tammany... upper Jefferson... upper
Lafourche... upper Plaquemines... upper St. Bernard... upper
Terrebonne... Washington... West Baton Rouge and West Feliciana.
In southern Mississippi... Amite... Hancock... Harrison...
Jackson... Pearl River... Pike... Walthall and Wilkinson.

* Through Thursday morning

* periods of very heavy rainfall during the past 24 hours have
produced 2 to 3 inches of rainfall over most southeast Louisiana
and south Mississippi. Parts of the city of may have received 4
inches of rain. More thunderstorms are developing along the
Texas coast associated with an upper level disturbance. These
thunderstorms area expected to move into the area during the
overnight hours producing an additional rainfall of 2 to 3
inches. The ground is saturated. So this rain will pond up very
quickly. Much of this rain will fall in a short period of time
which will result in flash flooding.

* Repeat areas of very heavy rainfall will result in flash
flooding of streets... streams... canals... and low lying and
poorly drained areas.

Precautionary/preparedness actions...

A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a very dangerous situation.

You should monitor later forecasts and be prepared to take action
should flash flood warnings be issued.
Member Since: July 3, 2005 Posts: 419 Comments: 127374
Member Since: July 3, 2005 Posts: 419 Comments: 127374
Quoting jrweatherman:


We'll see if this line holds up or comes in just south of Tampa Bay. Many times these storms fizzle a lot as they approach the coast.
just looked out in the gulf, i see the clouds and the flashes of lightning, its a ways out yet, love to get the rain from this, just hold off on the 60 mph winds ok lol
Member Since: August 6, 2011 Posts: 4 Comments: 36667
This is from NWS Tampa:

AN AREA OF LOW PRESSURE WILL DEVELOP OVER THE SOUTHEAST
U.S. ON THURSDAY IN RESPONSE TO THE U/L LOW APPROACHING THE
REGION...WITH INCREASING CLOUDINESS AND A CHANCE OF THUNDERSTORMS
ACROSS WEST CENTRAL FLORIDA BY LATE IN THE DAY. SCATTERED SHOWERS
AND THUNDERSTORMS WILL PUSH ACROSS THE REGION THURSDAY NIGHT AND
SINK SLOWLY SOUTHEAST OVER THE AREA
. THE CHANCE OF RAIN WILL
DECREASE FRIDAY MORNING AS THE FRONT PUSHES SOUTH OF THE AREA AND
DECREASING CLOUDINESS OCCURS FRIDAY AFTERNOON.

Looks like their forecast was a little slow lol.
Member Since: Posts: Comments:
Scientific Forecaster Discussion
NWS Discussion
Return to Local Conditions & Forecast
Expanded Version (without abbreviations)Non-Expanded Version (with abbreviations)



Area forecast discussion
National Weather Service New Orleans la
311 PM CDT Wednesday Apr 4 2012


Synopsis...
slow moving upper level low over Texas Panhandle will drift east
tonight. Associated with the upper level low is a low pressure
trough in East Texas. The upper level low and trough will move
east tonight causing another round of thunderstorms and heavy rain
to develop across the area late this evening and over night. Used
consensus of GFS and European model (ecmwf) models as basis for forecast.


&&


Short term...
a few hours Grace before thunderstorms develop or move into the
area from the west tonight. There is a slight risk of severe
thunderstorms in the area. There is a even greater risk of 2 to 3
inches of heavy rain overnight. Most of the area got 2 to 3 inches
of rainfall during the past 24 hours...so the ground is saturated
and any heavy rain will result in flash flooding.


&&


Long term...
the upper level low is expected to move east of the lower
Mississippi Valley on Thursday with a ridge of high pressure
building over the area. The ridge will weaken Monday through
Tuesday allowing a series of upper level disturbances to approach
the forecast area from the northwest. Confidence in getting
rainfall Monday and Tuesday is not high...so am only go with a
slight chance of showers and thunderstorms.

Member Since: July 3, 2005 Posts: 419 Comments: 127374
I wrote a blog a little earlier about the CSU season prediction and my thougts on it if anyone's interested...

Link
Member Since: Posts: Comments:
Quoting jrweatherman:


We'll see if this line holds up or comes in just south of Tampa Bay. Many times these storms fizzle a lot as they approach the coast.
any idea on timing?
Member Since: August 6, 2011 Posts: 4 Comments: 36667
Quoting hydrus:
I am thinking along those same lines. I mentioned it on TropicalwxPR,s Blog.


Also,TSR will release their April forecast on Thursday.
Member Since: April 29, 2009 Posts: 75 Comments: 13931
Quoting Patrap:
Lake Charles
NEXRAD Radar

Base Reflectivity 0.50 Elevation
Range 248 NMI




boy looking at this, looks like we in central florida will finally get some rain
Member Since: August 6, 2011 Posts: 4 Comments: 36667
So far, south Fla. in the clear...

Member Since: September 10, 2007 Posts: 0 Comments: 10929
Quoting Grothar:


The new El Nino/La Nina forecast should be coming out tomorrow. They have been called for Enso Neutral condition through May. It is normal for La Nina to dissipate in the Spring months in the Northern hemisphere. I personally do not see a strong El Nino developing any time soon. It will be interesting to read what the new report will have.

This is one of the first years I have to disagree with Dr. Gray. Whilst I don't think it will be a very above average season, I do believe his forecast is a little too conservative. I would tell him, but he scares me.
I am thinking along those same lines. I mentioned it on TropicalwxPR,s Blog.
Member Since: September 27, 2007 Posts: 1 Comments: 20340
Lake Charles
NEXRAD Radar

Base Reflectivity 0.50 Elevation
Range 248 NMI




Member Since: July 3, 2005 Posts: 419 Comments: 127374
Quoting TropicalAnalystwx13:
Weather Underground has been voted the most popular weather site on the internet.

#1 - Weather Underground: 41% of votes
#2 - National Weather Service: 20% of votes
#3 - The Weather Channel: 19% of votes
#4 - Weather Spark: 11% of votes
#5 - AccuWeather: 9% of votes

wtf is weather spark?
I've never heard of it.
Member Since: October 22, 2011 Posts: 0 Comments: 2290
Quoting TropicalAnalystwx13:
Weather Underground has been voted the most popular weather site on the internet.

#1 - Weather Underground: 41% of votes
#2 - National Weather Service: 20% of votes
#3 - The Weather Channel: 19% of votes
#4 - Weather Spark: 11% of votes
#5 - AccuWeather: 9% of votes

Weather Undrground is the go to site for weather...with expert opinion from Dr. Master, Angela Fritz...etc. I have been using Weather underground for all weather information since 2007 and I will always use Weather Underground. Thanks Dr. Master for creating such a wonderful website
Member Since: November 6, 2010 Posts: 10 Comments: 7765
Quoting StormTracker2K:
Looks like a core of 60mph winds bowing toward Tampa


We'll see if this line holds up or comes in just south of Tampa Bay. Many times these storms fizzle a lot as they approach the coast.
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Quoting Levi32:


Um that was an April Fool's joke lol.


Happy New Years it is then, Oops...
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purple on map early let se if purple will come on our side early as well

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575. skook
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Quoting PedleyCA:
There is a memo on their site, saying that it is going down on the 12th. Tried to post the link here but it was cleansed.


Um that was an April Fool's joke lol.
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Member Since: July 3, 2005 Posts: 419 Comments: 127374
Member Since: July 3, 2005 Posts: 419 Comments: 127374
Quoting PedleyCA:
There is a memo on their site, saying that it is going done on the 12th. Tried to post the link here but it was cleansed.


Oh alright I was actually gonna get a bunker account but I guess that isn't necessary....
Member Since: Posts: Comments:
Quoting StormTracker2K:
Looks like a core of 60mph winds bowing toward Tampa


Yeah radar does show a downdraft region of 50 to 55 knots offshore with the stronger cells in that line. If they hold as strong as they are now there will likely be warnings, the airmass is quite cold aloft and that will support hail/damaging winds.

The tricky part here is that every model shows this collapsing as it approaching the coast. The reason for this is there is a tight gradient between deep moisture and dry air, if the line outruns the moisture flow into it, it will weaken substantially. However if moisture feed remains intact the atmosphere should be plenty unstable enough to keep strong storms all the way into Tampa Bay.

That being said, because of the uncertainty, don't get your hopes up, the storms will most likely not be as impressive as they are now when they reach the coast. However, like I said there is still a chance they will stay strong, so its worth tracking for sure :)
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Quoting weatherh98:


Who re we absorbing

Huh?
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Quoting Ameister12:

It's hard to believe that InaccuWeather is one there.


Who re we absorbing
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Quoting TropicalAnalystwx13:
Weather Underground has been voted the most popular weather site on the internet.

#1 - Weather Underground: 41% of votes
#2 - National Weather Service: 20% of votes
#3 - The Weather Channel: 19% of votes
#4 - Weather Spark: 11% of votes
#5 - AccuWeather: 9% of votes

It's hard to believe that InaccuWeather is one there.
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Tampa
NEXRAD Radar

Storm Relative Mean Radial Velocity 0.5° Elevation
Range 124 NMI

Member Since: July 3, 2005 Posts: 419 Comments: 127374
Quoting PedleyCA:
SPLbeater


Oh I kinda liked him haha

Wait who is WU obsorbing
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Quoting TropicalAnalystwx13:
This is still in fantasy land, so I am not getting my hopes up. However, the GFS shows a fantastic setup for Severe Weather starting on April 14, and lasting through April 16-17. The 12Z model trended more aggressive than previous runs, and the more reliable ECMWF has an even more potent storm system ejecting into the plains. Something to watch for sure.





Looks like a very strong dip in the jet stream combined with a nice south flow.... Strong winds and pretty much garrunteed moisture. That set up could put on storms through the panhandles And across Kansas rolling east

I hope those models don't come true, I also kinda wanna track em too hahh
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Looks like a core of 60mph winds bowing toward Tampa
Member Since: October 26, 2011 Posts: 0 Comments: 2651
Weather Underground has been voted the most popular weather site on the internet.

#1 - Weather Underground: 41% of votes
#2 - National Weather Service: 20% of votes
#3 - The Weather Channel: 19% of votes
#4 - Weather Spark: 11% of votes
#5 - AccuWeather: 9% of votes
Member Since: Posts: Comments:
SPLbeater
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Quoting TropicalAnalystwx13:

They predicted an above average season...and we got an above average season. I don't see your point in that first sentence?


Just read that and wondered he same thing...
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557. GOW11
Quoting HouGalv08:
A lot of factors come into play that determine whether or not we have an active season, but one of the most important is if we have an El Niño or La Nina present in the eastern Pacific. This year it looks like the La Nina will have died and transitioned to an El Niño. El niño is warmer water in the eastern Pacific along the coast of central America and northern South America. Warmer water equals rising air. Rising air must go somewhere, and that is usually eastward in the upper atmosphere. Stronger eastward air currents shear the tops of thunderstorms, thus shearing the tops of thunder storm waves that come of the west African coast, the seeds of most hurricanes. Thus, fewer hurricanes due to fewer waves developing into the initial low pressure areas that usually become first tropical storms.



Thanks, thats a ton of info and simple enough for even me, lolz. One last question, Does that mean the ideal situation would be a neutral year?
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Who got banned?
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These storms are intensifying as they approach Tamp Bay. Warnings could come out on these as they get closer.

Member Since: October 26, 2011 Posts: 0 Comments: 2651
Quoting TropicalAnalystwx13:
This is still in fantasy land, so I am not getting my hopes up. However, the GFS shows a fantastic setup for Severe Weather starting on April 14, and lasting through April 16-17. The 12Z model trended more aggressive than previous runs, and the more reliable ECMWF has an even more potent storm system ejecting into the plains. Something to watch for sure.




This could be bad if the forecast pan out
Member Since: November 6, 2010 Posts: 10 Comments: 7765
Quoting ncstorm:


no one knows..last year the experts predicted an above average season and you see how that turn out. Wait and see is my approach to the season. Predicting storms in April that will happen between a time span of June to November baffles me when we cant even say with certanity if it will be cold next week or not

They predicted an above average season...and we got an above average season. I don't see your point in that first sentence?
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Quoting ncstorm:


no one knows..last year the experts predicted an above average season and you see how that turn out. Wait and see is my approach to the season. Predicting storms in April that will happen between a time span of June to November baffles me when we cant even say with certanity if it will be cold next week or not

That's a good point
Member Since: November 6, 2010 Posts: 10 Comments: 7765


Member Since: July 3, 2005 Posts: 419 Comments: 127374
Quoting GOW11:
Ok, usually a lurker as I dont know much, but yall just confused me. I thought the warmer the water, the more storms and more intense they would be. Why are so many suggesting a slower season. Be gentle, Im not the brightest on this subject..... Thanks.

Sea Surface Temperatures alone do not dictate any hurricane season in particular. So many other factors go into play such as determining whether or not wind shear will be high, how much SAL will affect the Eastern Atlantic, and whether El Niño, La Niña, or Neutral conditions will arise during the peak of the season. In the case of this year, yes, Sea Surface Temperatures across much of the Western Atlantic are unseasonably warm. However, a weak El Niño is expected to arise by hurricane season's peak, ultimately limiting the total number of tropical cyclones in the season.
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Quite a gush of cloud into the gulf just now:

http://www.ssec.wisc.edu/data/geo/index.php?satel lite=east&channel=vis&coverage=conus&file=gif&imgo ranim=8&anim_method=flash

It seems to the eye counter-intuitive a there doesn't seem to be any obvious cold front and the low to the left would suggest that the air should be trending north there. I guess it must be a cold front, but seems weird nonetheless.
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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.