Historic 3-day tornado outbreak kills at least 40

By: Dr. Jeff Masters , 18. huhtikuuta 2011 klo 14:45 (GMT)

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In a stunning display of violence, close to 200 tornadoes rampaged across the Midwestern and Southeast U.S. April 14 - 16 in one of the largest tornado outbreaks in history. At least 40 people died in the tornadoes, making it the deadliest tornado outbreak since the Super Tuesday tornado outbreak of February 5 - 6, 2008, which killed 57 people. Severe thunderstorms and flash floods killed at least seven more people in this April's severe weather outbreak. Hardest hit was Bertie Country in northeast North Carolina, where an EF-3 tornado carved a path of destruction 18.8 miles long and 1/2 - 3/4 miles wide, killing 11 people in the town of Colerain. It was the deadliest single tornado in the United States since May 10, 2008 in Picher, Oklahoma and Neosho, Missouri, which killed 21. Also hard-hit Saturday was the Raleigh area, where a 3/10 mile-wide tornado carved a 63-mile long path of destruction through downtown. Damage was rated EF-2 in downtown Raleigh, but was EF-3 along other portions of its path, and the tornado killed five people. The 23 tornado deaths in North Carolina made Saturday's outbreak the deadliest day for tornadoes in the state since 1984, when the infamous March 28 tornado outbreak killed 57 people and injured 1248. The 1984 outbreak had more violent tornadoes--seven F4 twisters in all. None of the tornadoes in this year's outbreak have been rated above EF-3, as of yet.


Figure 1. Viewer-uploaded photo sent to WRAL of damage in Fayetteville, NC on Saturday.


Figure 2. Radar reflectivity image of North Carolina on Saturday during the height of the tornado outbreak, showing four simultaneous hook echoes of tornadoes. The storm at the top of the image is the EF-3 tornado that ripped through Raleigh, killing five people.

One of the largest tornado outbreaks in history
NOAA's Storm Prediction Center logged 120 preliminary tornado reports on Saturday, 120 on Friday, and 27 on Thursday, bringing the 3-day total to 267 twisters. In past years, these preliminary tornado reports typically were an over-count of the actual confirmed tornado totals by about 15%. However, this year the Storm Prediction Center stopped trying to filter out preliminary reports they thought were from the same tornado, so the over-count may be higher. Even so, the 3-day April 14 - 16 2011 tornado outbreak will likely will end up with close to 200 confirmed tornadoes, making it the largest tornado outbreak since the 235 tornadoes recorded in the May 22 - 31, 2008 outbreak. According to a list of tornado outbreaks maintained by Wikipedia, only two other tornado outbreaks have had as many as 150 twisters--the May 2004 outbreak (385), and the May 2003 outbreak (401). An average April typically has 150 - 160 tornadoes across the entire U.S.


Figure 3. North Carolina Department of Transportation worker Steven Hoag sat in his car filming the EF-2 tornado that hit Wilson, North Carolina on Saturday. We can hear his side of a cell phone conversation to his sister as the tornado passes directly over him, unroofing a Walgreens store across the street. His calmness and lack of concern are truly extraordinary to hear (in an interview with the local ABC affiliate, Hoag attributes his calmness to his family upbringing, and to being an ex-Marine.) Hoag was very fortunate, as the 120-mph winds of the tornado rolled several cars as much as 100 feet.

Another significant severe weather outbreak coming on Tuesday
NOAA's Storm Prediction Center is predicting another major severe weather outbreak for the Midwest on Tuesday, when a strong cold front is expected to sweep across the Mississippi and Ohio River Valleys. A "moderate" risk of severe weather is expected across much of Missouri, Illinois, and Indiana. The weather conditions are not expected to be as conducive for severe weather as was the case Saturday, when SPC placed much of North Carolina in their "high risk" area for severe weather, the only "high risk" forecast they've issued this year.


Figure 4. Severe weather risk for Tuesday.

Wikipedia has a nice summary of the April 14 - 16 tornado outbreak.

Jeff Masters

Tornado - Pine Apple,AL (EarlBcom)
Tornado just south of Pine Apple, AL on around 5:40pm. This storm was a part of the Alabama tornado outbreak on April 15, 2011. earlb.com VIDEO - See video of tornado at earlb.com
Tornado - Pine Apple,AL
Between Water Front Park and Holiday City Mobile Home Park (taylor68s)
Jacksonville NC
Between Water Front Park and Holiday City Mobile Home Park
Tornado (KB9JTO)
Taken near Pike 277 and MO-NN.
Tornado

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775. nrtiwlnvragn
20. huhtikuuta 2011 klo 12:51 (GMT)
NEW BLOG
Member Since: 23.09.2005 Posts: 13 Comments: 10468
774. IKE
20. huhtikuuta 2011 klo 12:50 (GMT)
I see the spin now near 23N and 60W....
Member Since: 9.06.2005 Posts: 23 Comments: 37858
773. emcf30
20. huhtikuuta 2011 klo 12:47 (GMT)
Quoting jitterboy:

Let go of my Eggo!

I bet I would know who would win
Member Since: 7.08.2010 Posts: 0 Comments: 1933
772. emcf30
20. huhtikuuta 2011 klo 12:46 (GMT)
Quoting IKE:

"""Wipers....wipers....wipers!!!!!!!!!!"""

They seem to be just slightly more excited then......

"""I'd say it's coming right toward me"""

"""I happen to be recording it...that's even better isn't it"""

"""It's gonna pass right over me"""

"""I'm still good....now I got a problem with what I'm driving. It's damaged"""

LOL
Member Since: 7.08.2010 Posts: 0 Comments: 1933
771. jitterboy
20. huhtikuuta 2011 klo 12:45 (GMT)
Quoting emcf30:
Poor guy, the Tornado took his hamburger

Let go of my Eggo!
Member Since: 13.12.2009 Posts: 0 Comments: 122
770. jitterboy
20. huhtikuuta 2011 klo 12:42 (GMT)
Quoting snotly:
Different perspective of Pike County, MO twister from Waly-mart parking lot. Hint, turn off computer speakers (sirens)


One may drag the cursor back and forth at the bottom, turns the video into a time lapse. Kinda cool.
Member Since: 13.12.2009 Posts: 0 Comments: 122
769. emcf30
20. huhtikuuta 2011 klo 12:41 (GMT)
Poor guy, the Tornado took his hamburger
Member Since: 7.08.2010 Posts: 0 Comments: 1933
768. snotly
20. huhtikuuta 2011 klo 12:31 (GMT)
Different perspective of Pike County, MO twister from Waly-mart parking lot. Hint, turn off computer speakers (sirens)

Member Since: 27.08.2005 Posts: 0 Comments: 682
767. jitterboy
20. huhtikuuta 2011 klo 12:23 (GMT)
Anyone know how a tornado warning is generated? Is there a human looking at the radar on a constant basis or is it more computer generated? Thanks
Member Since: 13.12.2009 Posts: 0 Comments: 122
765. IKE
20. huhtikuuta 2011 klo 12:08 (GMT)
Looks like whatever is left of the "disturbance" in the western ATL will eventually get drawn into a cold front heading into the SE USA about a week from now...per the 6Z GFS @ 180 hours...


Member Since: 9.06.2005 Posts: 23 Comments: 37858
763. IKE
20. huhtikuuta 2011 klo 11:59 (GMT)

Quoting emcf30:


He seems to be in the right places almost every time
"""Wipers....wipers....wipers!!!!!!!!!!"""

They seem to be just slightly more excited then......

"""I'd say it's coming right toward me"""

"""I happen to be recording it...that's even better isn't it"""

"""It's gonna pass right over me"""

"""I'm still good....now I got a problem with what I'm driving. It's damaged"""
Member Since: 9.06.2005 Posts: 23 Comments: 37858
761. IKE
20. huhtikuuta 2011 klo 11:52 (GMT)

Quoting nrtiwlnvragn:


I'll help you out, I don't think it will be designated. TAFB in their surface forecasts show the low attached to a front and as long as that thinking continues, no tropical/subtropical cyclone.

Now that I have typed that, expect an invest!
:(

***tears rolling down face***
Member Since: 9.06.2005 Posts: 23 Comments: 37858
760. aquak9
20. huhtikuuta 2011 klo 11:51 (GMT)
Ike has lost his ever-lovin' mind.
Member Since: 13.08.2005 Posts: 163 Comments: 25507
759. nrtiwlnvragn
20. huhtikuuta 2011 klo 11:48 (GMT)
Quoting IKE:

lol....just got a loop going of the "disturbance". Waiting on a 91L to be designated. Stay tuned!


I'll help you out, I don't think it will be designated. TAFB in their surface forecasts show the low attached to a front and as long as that thinking continues, no tropical/subtropical cyclone.

Now that I have typed that, expect an invest!
Member Since: 23.09.2005 Posts: 13 Comments: 10468
758. emcf30
20. huhtikuuta 2011 klo 11:48 (GMT)


He seems to be in the right places almost every time
Member Since: 7.08.2010 Posts: 0 Comments: 1933
756. IKE
20. huhtikuuta 2011 klo 11:03 (GMT)
From Crownweather......



"""Quick Update On The Area Of Disturbed Weather Northeast of Puerto Rico

Rob Lightbown on April 20, 2011, 6:18 am


I wanted to very quickly update
all of you on the area of disturbed weather that is located to the
northeast of Puerto Rico near 23 North Latitude, 60 West Longitude.
Satellite imagery from the overnight hours into early this morning
showed that convection is cycling up and down near the center of this
disturbance. The global model guidance continues to be in good agreement
in insisting that this system will try to develop into a weak
sub-tropical storm as we get into Thursday and especially Friday. The
key timeframe for this system will be from late Thursday through Friday
when this system approaches an upper level trough of low pressure and
encounters an area of lower wind shear values. This area of lower wind
shear values may give this system an opportunity to develop into a
sub-tropical storm between Thursday evening and Friday evening. It
should be noted that the model guidance also agrees that this system
will quickly weaken and dissipate by Saturday as it approaches the
eastern Bahamas due to very strong wind shear values.
I suspect that the National Hurricane Center will label this system
Invest 91-L within the next 24 hours.
What is an Invest you ask? An
Invest is basically an area of disturbed weather that the National
Hurricane Center has interest in. Once a disturbance is labeled an
Invest, track model guidance is run on the system and also a floater
satellite image is placed over the area of interest allowing for a
closer view of the disturbed weather.
I will continue to monitor this area of disturbed weather and will likely post again early Thursday morning."""............


WOOHOO!
Member Since: 9.06.2005 Posts: 23 Comments: 37858
755. IKE
20. huhtikuuta 2011 klo 10:56 (GMT)

Quoting aquak9:
good morning dayshift. Where's Cheerleader Ike? He needs to wave some pom-poms around or something.
lol....just got a loop going of the "disturbance". Waiting on a 91L to be designated. Stay tuned!
Member Since: 9.06.2005 Posts: 23 Comments: 37858
754. CybrTeddy
20. huhtikuuta 2011 klo 10:12 (GMT)
Quoting CyclonicVoyage:
A lil map before I turn in, concerning our C-ATL aoi. Night All



If it can get north, it has a chance.
Member Since: 8.07.2005 Posts: 259 Comments: 23015
753. aquak9
20. huhtikuuta 2011 klo 10:09 (GMT)
good morning dayshift. Where's Cheerleader Ike? He needs to wave some pom-poms around or something.
Quoting Levi32:
It looks like, regardless of what comes of this disturbance, Florida may get some rain from it early next week.
Member Since: 13.08.2005 Posts: 163 Comments: 25507
752. Ylee
20. huhtikuuta 2011 klo 08:35 (GMT)
All of the tornado warnings have expired....
It seems that all this severe weather has worn out everyone....
Member Since: 3.02.2011 Posts: 86 Comments: 14577
751. Levi32
20. huhtikuuta 2011 klo 06:30 (GMT)
It looks like, regardless of what comes of this disturbance, Florida may get some rain from it early next week.
Member Since: 24.11.2005 Posts: 628 Comments: 26455
750. JRRP
20. huhtikuuta 2011 klo 05:59 (GMT)
Member Since: 16.08.2007 Posts: 0 Comments: 5085
749. xcool
20. huhtikuuta 2011 klo 05:49 (GMT)


Member Since: 26.09.2009 Posts: 2 Comments: 15603
748. flsky
20. huhtikuuta 2011 klo 05:42 (GMT)
Assistance for Affected Individuals and Families Can Include as Required:

Rental payments for temporary housing for those whose homes are unlivable. Initial assistance may be provided for up to three months for homeowners and at least one month for renters. Assistance may be extended if requested after the initial period based on a review of individual applicant requirements. (Source: FEMA funded and administered.)
Grants for home repairs and replacement of essential household items not covered by insurance to make damaged dwellings safe, sanitary and functional. (Source: FEMA funded and administered.)
Grants to replace personal property and help meet medical, dental, funeral, transportation and other serious disaster-related needs not covered by insurance or other federal, state and charitable aid programs. (Source: FEMA funded at 75 percent of total eligible costs; 25 percent funded by the state.)
Unemployment payments up to 26 weeks for workers who temporarily lost jobs because of the disaster and who do not qualify for state benefits, such as self-employed individuals. (Source: FEMA funded; state administered.)
Low-interest loans to cover residential losses not fully compensated by insurance. Loans available up to $200,000 for primary residence; $40,000 for personal property, including renter losses. Loans available up to $2 million for business property losses not fully compensated by insurance. (Source: U.S. Small Business Administration.)
Loans up to $2 million for small businesses, small agricultural cooperatives and most private, non-profit organizations of all sizes that have suffered disaster-related cash flow problems and need funds for working capital to recover from the disaster's adverse economic impact. This loan in combination with a property loss loan cannot exceed a total of $2 million. (Source: U.S. Small Business Administration.)
Loans up to $500,000 for farmers, ranchers and aquaculture operators to cover production and property losses, excluding primary residence. (Source: Farm Service Agency, U.S. Dept. of Agriculture.)
Other relief programs: Crisis counseling for those traumatized by the disaster; income tax assistance for filing casualty losses; advisory assistance for legal, veterans’ benefits and social security matters.
Member Since: 24.10.2006 Posts: 0 Comments: 1737
747. flsky
20. huhtikuuta 2011 klo 05:31 (GMT)
He's a good man.

Quoting AllyBama:


thanks for the tip!...I talked with someone earlier this evening on standy for deployment..I knew it was a matter of time...obviously Obama was up late tonight..lol
Member Since: 24.10.2006 Posts: 0 Comments: 1737
746. sunlinepr
20. huhtikuuta 2011 klo 05:19 (GMT)
Member Since: 2.08.2010 Posts: 21 Comments: 9656
745. AllyBama
20. huhtikuuta 2011 klo 05:16 (GMT)
Quoting IFuSAYso:
PB's website has OK, NC, IA, MS, and AL as pending individual assistance.


k...my person talked with them earlier today..
Member Since: 3.08.2006 Posts: 132 Comments: 20614
744. IFuSAYso
20. huhtikuuta 2011 klo 05:09 (GMT)
PB's website has OK, NC, IA, MS, and AL as pending individual assistance.
Member Since: 8.03.2011 Posts: 0 Comments: 154
743. AllyBama
20. huhtikuuta 2011 klo 05:09 (GMT)
IFuSAYso - good for you..hopefully you will be going to work Thursday..I understand there is lots to be done.
Member Since: 3.08.2006 Posts: 132 Comments: 20614
742. CyclonicVoyage
20. huhtikuuta 2011 klo 05:08 (GMT)
A lil map before I turn in, concerning our C-ATL aoi. Night All

Member Since: 30.01.2010 Posts: 0 Comments: 3259
741. IFuSAYso
20. huhtikuuta 2011 klo 05:05 (GMT)
Quoting AllyBama:
IFuSAYso, who for? being nosy - lol

I do contract FEMA housing inspections. It's listed as pending for individual assistance.


PB and PaRR
Member Since: 8.03.2011 Posts: 0 Comments: 154
740. AllyBama
20. huhtikuuta 2011 klo 05:04 (GMT)
IFuSAYso, who for? being nosy - lol

I do contract FEMA housing inspections. It's listed as pending for individual assistance.
Member Since: 3.08.2006 Posts: 132 Comments: 20614
739. IFuSAYso
20. huhtikuuta 2011 klo 05:01 (GMT)
Quoting flsky:
WASHINGTON -- The U.S. Department of Homeland Security’s Federal Emergency Management Agency (FEMA) today announced that federal disaster aid has been made available to North Carolina to supplement the state and local recovery efforts in the area struck by severe storms, tornadoes and flooding on April 16, 2011.

The President's action makes Federal funding available to affected individuals in the counties of Bertie, Bladen, Cumberland, Halifax, Harnett, Johnston, Lee, Onslow, Wake, and Wilson.

Assistance can include grants for temporary housing and home repairs, low-cost loans to cover uninsured property losses, and other programs to help individuals and business owners recover from the effects of the disaster.



I do contract FEMA housing inspections. It's listed as pending for individual assistance.
Member Since: 8.03.2011 Posts: 0 Comments: 154
738. AllyBama
20. huhtikuuta 2011 klo 05:00 (GMT)
Quoting flsky:
One can sign up for immediate direct emails from their website: fema.gov



thanks for the tip!...I talked with someone earlier this evening on standy for deployment..I knew it was a matter of time...obviously Obama was up late tonight..lol
Member Since: 3.08.2006 Posts: 132 Comments: 20614
737. IFuSAYso
20. huhtikuuta 2011 klo 04:56 (GMT)
Link
Member Since: 8.03.2011 Posts: 0 Comments: 154
736. IFuSAYso
20. huhtikuuta 2011 klo 04:56 (GMT)



Hail reports
Member Since: 8.03.2011 Posts: 0 Comments: 154
735. IFuSAYso
20. huhtikuuta 2011 klo 04:54 (GMT)
521 severe report so far today.
Member Since: 8.03.2011 Posts: 0 Comments: 154
734. flsky
20. huhtikuuta 2011 klo 04:53 (GMT)
One can sign up for immediate direct emails from their website: fema.gov

Quoting AllyBama:
strange that it is in the msg but not listed that way on FEMA's website..like I said, hopefully they will update in the a.m...thanks for the posting and setting me straight....some people I know need to get ready to roll!
Member Since: 24.10.2006 Posts: 0 Comments: 1737
733. AllyBama
20. huhtikuuta 2011 klo 04:47 (GMT)
strange that it is in the msg but not listed that way on FEMA's website..like I said, hopefully they will update in the a.m...thanks for the posting and setting me straight....some people I know need to get ready to roll!
Member Since: 3.08.2006 Posts: 132 Comments: 20614
732. flsky
20. huhtikuuta 2011 klo 04:41 (GMT)
WASHINGTON -- The U.S. Department of Homeland Security’s Federal Emergency Management Agency (FEMA) today announced that federal disaster aid has been made available to North Carolina to supplement the state and local recovery efforts in the area struck by severe storms, tornadoes and flooding on April 16, 2011.

The President's action makes Federal funding available to affected individuals in the counties of Bertie, Bladen, Cumberland, Halifax, Harnett, Johnston, Lee, Onslow, Wake, and Wilson.

Assistance can include grants for temporary housing and home repairs, low-cost loans to cover uninsured property losses, and other programs to help individuals and business owners recover from the effects of the disaster.

Quoting AllyBama:


hmmm...no individual assistance..not what I understood..also saw no mention of designated counties..thought there was to be 18...maybe tomorrow.
Member Since: 24.10.2006 Posts: 0 Comments: 1737
731. AllyBama
20. huhtikuuta 2011 klo 04:39 (GMT)
Quoting flsky:
Federal disaster just declared for N. Carolina. If you've been affected call 1-800-621-FEMA (3362) to apply for assistance.


hmmm...no individual assistance..not what I understood..also saw no mention of designated counties..thought there was to be 18...maybe tomorrow.
Member Since: 3.08.2006 Posts: 132 Comments: 20614
730. KoritheMan
20. huhtikuuta 2011 klo 04:22 (GMT)
Quoting CyclonicVoyage:


60-70 mph winds reported in the area with a temp of 39 will chill ya down rather quickly.


This made me detest winter weather even more.
Member Since: 7.03.2007 Posts: 521 Comments: 19135
729. flsky
20. huhtikuuta 2011 klo 04:16 (GMT)
Federal disaster just declared for N. Carolina. If you've been affected call 1-800-621-FEMA (3362) to apply for assistance.
Member Since: 24.10.2006 Posts: 0 Comments: 1737
728. EYEStoSEA
20. huhtikuuta 2011 klo 04:15 (GMT)
Member Since: 16.09.2010 Posts: 0 Comments: 1492
727. CyclonicVoyage
20. huhtikuuta 2011 klo 04:12 (GMT)
Quoting KoritheMan:

One noticeable difference between tropical weather and mid-latitude weather is that the former is largely dependent on heat energy, while the latter relies more on complex mid- to upper-level dynamics.

To put it another way, the surface temperature is largely unimportant. As long as the upper support is adequate, severe weather is a corollary.


Yeah, I understand that, just don't recall anything similar in my years there. 60-70 mph winds reported in the area with a temp of 39 will chill ya down rather quickly.
Member Since: 30.01.2010 Posts: 0 Comments: 3259
726. KoritheMan
20. huhtikuuta 2011 klo 04:12 (GMT)
Quoting jasonweatherman2010:
look at this tropical low!!


It's not tropical.
Member Since: 7.03.2007 Posts: 521 Comments: 19135

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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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