First EF-4 tornado of 2013 injures 82 near Hattiesburg, MS

By: Dr. Jeff Masters , 1:10 AM GMT on February 12, 2013

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The strong tornado that swept through Hattiesburg and Oak Grove in Lamar County, Mississippi, on Sunday has been rated an EF-4 with 170 mph winds, making it the first violent EF-4 tornado of 2013. The tornado hit Hattiesburg at 5:12 pm CST February 10, injuring 82 people and causing widespread damage over a 20-mile-long path. Miraculously, there were no deaths.The only other violent EF-4 tornado ever to hit Lamar County occurred on April 24, 1908, according to NWS Jackson.


Figure 1. Oak Grove High School football field near Hattiesburg, MS after Sunday's tornado. Damage was rated EF-4 near the high school, and there was clear evidence of the tornado being multi-vortex over a portion of its path. Image credit: NWS Jackson Facebook page.

The 2013 tornado season is off to an unusually busy start--a pattern we also saw last year. The January 29 - 30, 2013 tornado outbreak now has 56 confirmed tornadoes, including the only EF-3 tornado of the year, which hit Adairsville, GA, on January 30, killing one person. The outbreak is now ranked as the second largest January tornado outbreak since records began in 1950 (the largest: 128 tornadoes on January 21 - 22, 1999 .) NOAA's Storm Prediction Center logged twelve preliminary reports of tornadoes on Sunday, from Mississippi and Alabama. This brings the tally of preliminary tornado reports for the year to 100. On average, we've had just 72 preliminary tornado reports by February 10 during the previous seven years, 2005 - 2011.


Video 1. Hotel worker Rynal Grant caught this impressive video of the February 10, 2013 Hattiesburg, Mississippi tornado.

Portlight receives $125,000 grant for New Jersey relief efforts
On September 14, 2008, the devastation wrought by Hurricane Ike on Texas and Louisiana moved members of the wunderground community to put into action their own impromptu relief effort. From this humble beginning has grown a disaster-relief charity I have been proud to support--Portlight.org. Portlight has stood up to support the needs of thousands of people affected by natural disasters since Hurricane Ike. After Hurricane Sandy, Portlight became a clearinghouse for local, state and federal agencies, including the FEMA Functional Needs Task Force--New Jersey, meeting the needs of people with disabilities. This week, Portlight announced that they had received a grant of $125,000 to continue helping in New Jersey in a big way. Congratulations, Portlight!


Figure 2. Vince Sciacca was in a horrific car accident a few years ago, which put him in a coma for nine months and left him with a severe brain injury. Shortly before Superstorm Sandy struck, and after much struggle, he had finally straightened out his equipment needs. The storm came along and destroyed everything. Portlight's project manager, Steve Major, delivered this power chair to Vince on February 2, and will be working with him to replace other equipment, as well.

Visit the Portlight.org. Portlight.org website to find out more or Portlight blog to learn more. Donations are always welcome!

Jeff Masters

Hattiesburg, MS Tornado (apphotos)
This photo provided by Jordan Holliman shows a tornado moving through Hattiesburg, Miss., Sunday, Feb. 10, 2013. Major damage was reported in Hattiesburg and Petal, including on the campus of the University of Southern Mississippi. (AP Photo/Jordan Holliman)
Hattiesburg, MS Tornado
Hattiesburg, MS Tornado (apphotos)
A business at 5133 Lincoln Road Extension in Hattiesburg, Miss., is damaged after an apparent tornado Sunday, Feb. 10, 2013. (AP Photo/Chuck Cook)
Hattiesburg, MS Tornado
Hattiesburg, MS Tornado (apphotos)
A heavily damaged vehicle sits near the front of the University of Southern Mississippi on Hardy Street in Hattiesburg Miss., Feb 10, 2013 after a tornado passed through the city Sunday afternoon. (AP Photo/Hattiesburg American, Ryan Moore)
Hattiesburg, MS Tornado

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Member Since: August 6, 2011 Posts: 4 Comments: 40959
Heed your Local warnings today folks.............
Member Since: August 6, 2011 Posts: 4 Comments: 40959
Mississippi is getting hammered with rain huh.......
Member Since: August 6, 2011 Posts: 4 Comments: 40959
Quoting KoritheMan:
Katrina's report was "only" 43 pages. These prognostications for Sandy's being quadruple that are a little baseless.

I am wondering if they will upgrade Sandy to a Cat 3 as we all saw how tight her core was just before Sandy made landfall on Cuba. Don't forget they might go into detail of the phasing of Sandy the cold front and the blocking high.
Member Since: September 30, 2007 Posts: 9 Comments: 15962
Washi IS going to be very happy with THIS forecast.....................THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE MARYLAND PORTION OF THE
CHESAPEAKE BAY...TIDAL POTOMAC RIVER...AND ADJACENT COUNTIES IN
CENTRAL MARYLAND AND NORTHERN VIRGINIA AS WELL AS THE DISTRICT OF
COLUMBIA.

.DAY ONE...TONIGHT

A SMALL CRAFT ADVISORY IS IN EFFECT FOR THE MARYLAND CHESAPEAKE
BAY AND TIDAL POTOMAC RIVER.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

A SMALL CRAFT ADVISORY IS IN EFFECT FOR THE WATERS ON TUESDAY.

A DEVELOPING LOW IS LIKELY TO IMPACT THE CENTRAL MID-ATLANTIC
WITH ACCUMULATION OF WINTRY PRECIPITATION WEDNESDAY AND WEDNESDAY
NIGHT. UNCERTAINTY REMAINS WITH THE INTENSITY OF THIS LOW. PLEASE
MONITOR THE LATEST FORECASTS.

A COASTAL LOW MAY CAUSE ACCUMULATING SNOW OVER PORTIONS OF THE
MID-ATLANTIC THIS WEEKEND.
Member Since: August 6, 2011 Posts: 4 Comments: 40959
News is reporting that the Russian defense ministry is saying that NK test is "over 7 kt".

That's about 40% of a Hiroshima bomb. By nuclear standards, a very unimpressive yield (the design yield of the Tsar Bomba was 15,000 times higher, and fielded US warheads are 1,000 times higher). That's especially problematic for NK when combined with the 3-4km CEP of the Taepodong 2. A 7kt yield will only destroy most civilian buildings in a 1km radius, so they really can't control what they'd be hitting - if they even can mate it to a missile at all, and assuming they could get past US missile defenses (having only a small number of primitive missiles, that's questionable).

I wonder what the planned yield was? I imagine they're working on reducing their warhead size while trying to maintain yield in order to mate it to their missiles.

There are various missile configurations they could use, and the further they want to go, the smaller the payload they can carry. But even if they could reach LA with it (highly unlikely), due to the high CEP, it could well end up landing, say, on an empty Dodger Stadium/Elysian Reservoir/Echo Park, with most of the energy of the blast wasted. Targeted at Honolulu (much more realistic range if nuclear tipped), odds are 3 to 1 that that the blast would be centered well over the ocean or in the mountains - quite possibly not even close enough to cause more than some fallout and temporary vision loss for those looking straight at it when it went off.

But nonetheless, while not enough of a threat to really be a nuclear *deterrent*, it's not something to be just ignored. It's most certainly still a very deadly weapon that - IF capable of being mated to a missle - has the potential to kill tens of thousands if lucky with targetting and if not intercepted (or if trucked or flown or shipped somewhere in secret).

Member Since: Posts: Comments:
thurs,GFS puts snow nearby DC huh............
Member Since: August 6, 2011 Posts: 4 Comments: 40959
Member Since: August 6, 2011 Posts: 4 Comments: 40959
yesss..tomorrow the rains begin Finally..........
Member Since: August 6, 2011 Posts: 4 Comments: 40959
enjoy today Floridians..its our last warm one this week.
Member Since: August 6, 2011 Posts: 4 Comments: 40959
Good Morning Folks!..blogs Coffee is perked,Enjoy,have a great day,some very interesting weather coming up huh..
Member Since: August 6, 2011 Posts: 4 Comments: 40959
Morning everyone!

Good evening Aussie! Great video mate, had me on the edge of my chair...
Member Since: September 23, 2006 Posts: 1 Comments: 2585
Katrina's report was "only" 43 pages. These prognostications for Sandy's being quadruple that are a little baseless.
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Quoting Slamguitar:


That would be incredible. I might have to wait until Spring break to have enough time to read all of that.

Well, just think about how much information that there is to go into the report. So as I said, I wouldn't be surprised if it was over 200pages.
Member Since: September 30, 2007 Posts: 9 Comments: 15962
Quoting AussieStorm:


I don't know who Micheal is but I don't think he gets to go on the next chase. :)
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I still have to revisit it to complete the best track, along with the various observation tables involved in such documentation, but my Tropical Cyclone Report (TCR) on Hurricane Isaac is now complete, coincidentally on the same day that the National Hurricane Center plans to release their official report for Hurricane Sandy:

Link
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Sorry, Some1has2BtheRookie, I posted the WRONG info. Pulled 480tons(0.48kilotons) for a magnitude5.0 outta Wiki as a basis for calculating a magnitude5.1
After looking at what I had posted in 108, decided it smelt fishy. And checked around for other sites with equivalencies.

From checks in GoogleScholar articles, Wiki is definitely using the wrong equivalency figures. But the other non-Scholar sites I've looked at are scattered all over the place regarding equivalencies, with some charts obviously using the wrong math between Richter magnitudes.
And haven't found any Richter-to-kiloton equivalencies in GoogleScholar as of yet, or Richter-to-joules for that matter.
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Quoting wxchaser97:
Thanks Dr. Masters.

Millry does look to be fine despite what passed over them, just some flooding.

good to hear they're ok I was worried
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Quoting AussieStorm:


That awkward moment when you realize you recognize some of those buildings. I was just there last May.
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AussieStorm,

Wow! That was probably the best video I've seen of it yet. Those guys are gutsy for getting that close, but they definitely knew what they were doing. That tornado was a BEAST!
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Quoting AussieStorm:

my guess is 200+ pages.


That would be incredible. I might have to wait until Spring break to have enough time to read all of that.
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Quoting Slamguitar:
On Sandy's TCR: (Sunday from NHC Facebook)

"Our forecast that the Tropical Cyclone Report for Hurricane Sandy would be released on Monday will end up being a tad optimistic. The report is now scheduled for a Tuesday morning release. (Apparently, even after you put them there, one's ducks don't always *stay* in a row.) Tuesday for sure. Really."

I'm guessing the report will be 164.5 pages.

my guess is 200+ pages.
Member Since: September 30, 2007 Posts: 9 Comments: 15962
On Sandy's TCR: (Sunday from NHC Facebook)

"Our forecast that the Tropical Cyclone Report for Hurricane Sandy would be released on Monday will end up being a tad optimistic. The report is now scheduled for a Tuesday morning release. (Apparently, even after you put them there, one's ducks don't always *stay* in a row.) Tuesday for sure. Really."

I'm guessing the report will be 164.5 pages.
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Member Since: September 30, 2007 Posts: 9 Comments: 15962
North Korea nuclear test upgraded to 5.1 magnitude quake.
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Well, this looks... blue.

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.
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Quoting washingtonian115:
We have tomorrow's storm that's already winding up and should make for some problems.

Are you still dreaming of snow?
Member Since: September 30, 2007 Posts: 9 Comments: 15962
I believe this nuclear test is quite a bit larger than the last one to cause a 4.9 magnitude quake. Don't quite remember but I believe the other test a few years back was like a 3.2 when detected.
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Quoting Bluestorm5:
To post 83:

There's nothing to discuss about, weather wise.
We have tomorrow's storm that's already winding up and should make for some problems.
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Quoting KoritheMan:
How does everyone know Sandy's report is going to be released tomorrow?


they posted it on facebook

it was quite comedic
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Quoting KoritheMan:
How does everyone know Sandy's report is going to be released tomorrow?
Dr. Masters think it will be released tomorrow. Also, NHC Facebook page said that it'll be released tomorrow if I remember someone posting that information.
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102. Skyepony (Mod)
Quoting KoritheMan:
How does everyone know Sandy's report is going to be released tomorrow?


Facebook or something. Jeff had rumors too.

I'd like to go with 123 pages..
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How does everyone know Sandy's report is going to be released tomorrow?
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100. Skyepony (Mod)
Forecast the Facts has a petition open for signing that well really should be on Jeff's previous blog..

We'll deliver the following petition to ABC, CBS, NBC, MSNBC, CNN, and the Weather Channel.

As consumers of news, we want you to report the truth about the historic blizzard hitting our country. It's a fact that climate change is making powerful and dangerous storms like this blizzard and Hurricane Sandy more likely, and Americans need you to report this fact in your coverage.

Sign here..
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To post 83:

There's nothing to discuss about, weather wise.
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Quoting allancalderini:
probably 100 pages.


i heard 150
Member Since: Posts: Comments:
Quoting allancalderini:
probably 100 pages.


maybe more

rumor has it it will get major status upgrade at landfall on cuba
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Quoting KEEPEROFTHEGATE:
later aussie we also get Major Hurricane Sandy TCR tomorrow wunder how many pages that will be

probably 100 pages.
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she should take it down before she gets taken out
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Quoting washingtonian115:
I used censorship didn't I ? :)..

Yeah but we all still knew what you meant.

Goodnight Ped
Member Since: September 30, 2007 Posts: 9 Comments: 15962
Quoting AussieStorm:

Could this be the result of the Pope resigning. N Korea detonates a N bomb. And you drop the f bomb. lol
I used censorship didn't I ? :)..
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night ped
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Afternoon Aussie, Night Everyone Else. Stay Safe - Sleep Well .....
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Quoting Tazmanian:



weather what weather

Whether the weather matters is up to whether the weather matters to you. lol
Member Since: September 30, 2007 Posts: 9 Comments: 15962
Quoting washingtonian115:
Can we get back to F'ing weather?.

Could this be the result of the Pope resigning. N Korea detonates a N bomb. And you drop the f bomb. lol
Member Since: September 30, 2007 Posts: 9 Comments: 15962
Quoting Tropicsweatherpr:
I dont know if the nuclear test made by North Korea coincides with Tuesdays State of the Union address by Obama but is interesting that fact.


I don't Know but North Korea is is digging its own grave!!! I don't wanna see another Hiroshima
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Quoting Tazmanian:



weather what weather
Their is a whole lot going on Taz and more to come.
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Newslinks for info on Asia and North Korea: (the North Korean one is...umm...interesting)

Yonhap News link (South Korea)

North Korean News KCNA

China Daily

Kyodo News Japan
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Quoting washingtonian115:
Can we get back to F'ing weather?.



weather what weather
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Quoting WxGeekVA:
North Korea promises 'all-out action' amid talk of nuclear test

"It emphasized the necessity to continue on with launching artificial satellites ... and long-range rockets," the agency reported.

It also said that the party leadership promised to "stage a high-intensity, all-out action, and maximize its preparation ... so that just after an order is issued, we can destroy and sweep America and the South Korean puppet army, and achieve the historic achievement of reunified Korea."

>we can destroy and sweep America

>sweep America

>MFW

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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.