[DVDweather]

Population of Northwood is about 959 people.

Quote

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
854 PM CDT SUN AUG 26 2007

.TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON

.DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE.

..REMARKS..

0852 PM TORNADO NORTHWOOD 47.74N 97.57W
08/26/2007 GRAND FORKS ND LAW ENFORCEMENT

BETWEEN 850 PM AND 852 PM TORNADO STRUCK THE CITY OF
NORTHWOOD. DAMAGE HAS BEEN REPORTED.

 0140z.png (349.15K)
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 0144z.png (372.35K)
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 0149z.png (388.52K)
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 0153z.png (393.82K)
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[DVDweather]

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 0144z_zoom.png (242.96K)
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 0149z_zoom.png (251.61K)
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 0153z_zoom.png (259.8K)
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[Jack]

Now they basically look like one big complex (although the second one still has distinction). Doppler estimates 5.1" so far, as it often seems, there is flooding to go along with the tornado.

[Jack]

Back edge of the cell looks to be back building.

http://img165.imageshack.us/img165/9950/85410947vp2.png

BR4 (prior image showed the difference between 1 and 4 better)

Also, looks like a weak BWER there, too.

http://img165.imageshack.us/img165/8338/64272356rs1.png

[Jack]

MESO now indicated where that BWER was in the prior image.

http://img214.imageshack.us/img214/6382/76520586ne0.png

Check out BR4 also. I think this will be warned soon.

http://img214.imageshack.us/img214/6187/61229474kj3.png

[DVDweather]

Here are a couple of loops from the GRAnalyst rotation product as the storm passed through Northwood. The loops run from 0132z-0153z.
 litvolume_0132z_0153z.gif (543.5K)
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 isosurface_0132z_0153z.gif (445.12K)
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[Jack]

TVS now at the back edge.

http://img209.imageshack.us/img209/9461/48808650vl0.png

[DVDweather]

Here's a couple of up close images from 0144z and 0149z.
 kmvx_20070827_0144_01_isosurface_close.png (429.7K)
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 kmvx_20070827_0149_02_isosurface_close.png (423.81K)
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[James]

Here is what my good friend Justin had to say over on Stormtrack:

I was chasing near Northwood and spotted a funnel in the area around 8:30 and then got the hell out of there as the situation was looking ugly. A white knuckle drive all the way back to GFK with the tornado following. Looks like she will stay south of GFK. Another cell with robust rotation in Thief River Falls area.

Listening to scanner traffic and emergency responders heading toward Northwood with GFK hospital on alert.

Funnel west of Northwood at around 8:30...

With pic:
http://www.stormtrac...ead.php?t=13583

[Jack]

James, on Aug 26 2007, 11:04 PM, said:

Here is what my good friend Justin had to say over on Stormtrack:

I was chasing near Northwood and spotted a funnel in the area around 8:30 and then got the hell out of there as the situation was looking ugly. A white knuckle drive all the way back to GFK with the tornado following. Looks like she will stay south of GFK. Another cell with robust rotation in Thief River Falls area.

Listening to scanner traffic and emergency responders heading toward Northwood with GFK hospital on alert.

Funnel west of Northwood at around 8:30...

With pic:
http://www.stormtrac...ead.php?t=13583

Nice pic. I have seen a couple that looked like that. One did touch down about 5 miles to the north of me after it passed by. You never forget those.
Fortunately, that one touched down in the woods.

[Jack]

That cell is finally warned, even if it was just extended west instead of a new one.

Quote

WWUS53 KFGF 270316
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
1015 PM CDT SUN AUG 26 2007

MNC119-NDC035-270345-
/O.CON.KFGF.TO.W.0041.000000T0000Z-070827T0345Z/
GRAND FORKS ND-POLK MN-
1015 PM CDT SUN AUG 26 2007

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1045 PM CDT FOR SOUTHERN
GRAND FORKS AND CENTRAL POLK COUNTIES...

AT 1015 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THE TORNADO WAS LOCATED
NEAR ELDRED...OR 22 MILES SOUTHEAST OF GRAND FORKS...MOVING TO THE
EAST AT 30 MPH.

* THE TORNADO WILL BE ABOUT...
5 MILES SOUTH OF CROOKSTON BY 1025 PM CDT...
HAROLD BY 1035 PM CDT...
10 MILES SOUTH OF GENTILLY BY 1040 PM CDT...

THIS STORM WILL PRODUCE DAMAGING WINDS TO 80 MPH IN CROOKSTON.

ANOTHER SEVERE THUNDERSTORM IS LOCATED 5 MILES WEST OF NORTHWOOD.
THIS STORM IS MOVING EAST AT 30 MPH AND IS CAPABLE OF PRODUCING A
TORNADO AT ANY TIME.

IF YOU ARE IN THE PATH OF THIS TORNADO ABANDON CARS AND MOBILE HOMES
FOR A STURDY BUILDING.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT SUNDAY EVENING
FOR NORTHWESTERN MINNESOTA.

LAT...LON 4780 9783 4771 9783 4767 9632 4786 9651
4800 9652 4783 9682

$$

DK/CS

http://img204.imageshack.us/img204/4233/88125699nv3.png

[wxmann_91]

DVDweather, on Aug 26 2007, 08:03 PM, said:

Here's a couple of up close images from 0149z.
kmvx_200...ce_close.png

(pts of post omitted)

Uhh. That does not look pretty. Hopefully everybody's all right. Any additional reports from Northwood?

[James]

WDAZ has some coverage on their web page now. Several trailer homes took some pretty significant damage it sounds like, lots of trees and power lines down in town. Rescue crews on the scene. They are having trouble getting into town given the secondary heavy rain/tornado warning that moved through and the power lines issue.

[BeauDodson]

Very nice image grabs. I uploaded a satellite loop from gempak
http://www.beaudodso...woodtornado.htm

Also some other large grabs here
http://www.beaudodso.../blog/blog7.htm

Included some of your grabs.

Early reports are that there was damage to mobile homes and some farm structures.

[wxmann_91]

from the sats, it seems like there were stronger cells in Canada.

[BeauDodson]

Yeah looks rough up that way.

[BeauDodson]

NORTHWOOD, N.D. A tornado touched down Sunday night in Northwood, causing extensive damage and at least one fatality, officials said.

The tornado touched down between 8:50 p.m. and 8:52 p.m. and caused heavy damage in the Valley View trailer parks, two side-by-side parks on the north end of town, according to emergency officials. One person was killed in that trailer park, a fire official said, and more casualties are possible there.
http://www.grandforksherald.com/articles/i...573e0295c596a38

[James]

BeauDodson, on Aug 27 2007, 12:22 AM, said:

NORTHWOOD, N.D. A tornado touched down Sunday night in Northwood, causing extensive damage and at least one fatality, officials said.

The tornado touched down between 8:50 p.m. and 8:52 p.m. and caused heavy damage in the Valley View trailer parks, two side-by-side parks on the north end of town, according to emergency officials. One person was killed in that trailer park, a fire official said, and more casualties are possible there.
http://www.grandforksherald.com/articles/i...573e0295c596a38

Railroad cars being blown off of the tracks is usually a sign of EF3+ damage elsewhere in the tornado path. It takes very intense winds to get cars to tip over.

Let's hope for the best for those trailer courts, because it sounds like there is very little left.

[wxmann_91]

BeauDodson, on Aug 26 2007, 10:22 PM, said:

NORTHWOOD, N.D. A tornado touched down Sunday night in Northwood, causing extensive damage and at least one fatality, officials said.

The tornado touched down between 8:50 p.m. and 8:52 p.m. and caused heavy damage in the Valley View trailer parks, two side-by-side parks on the north end of town, according to emergency officials. One person was killed in that trailer park, a fire official said, and more casualties are possible there.
http://www.grandforksherald.com/articles/i...573e0295c596a38

shoot. :( Not good. Unfortunately, given the radar presentation, I'm not surprised really. I really hope there aren't any more fatalities.

[James]

It's 4 AM, SPC indicates that at this point, the ML cap is over 200 J/kg, and yet we have this beast rolling through the open country of south-central North Dakota.
 KBIS085144ZBR1.png (233.21K)
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