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Northern Plains Severe Weather 8/26-8/27 2007 Rate Topic: -----

#121 User is offline   Sam Sagnella 


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Posted 27 August 2007 - 02:27 PM

A brief compilation of some misc information about the Northwood tornado.

"Very preliminary damage indications would place the Northwood tornado as a strong Enhanced Fujita Scale (EF) 3 or weak EF4. Wind speeds in an EF3 tornado range from 138 to 167 mph, with EF4 wind speeds in the 168 to 199 mph range. Additional information would indicate that this tornado was approximately 8/10 of a mile wide." -WFO FGF: "Additional Information on Sunday Evening Tornadoes"

Does anyone know if the QRT is going to be dispatched, or has that been 'disbanded' since the new Enhanced Fujity Scale was implemented?

http://img96.imageshack.us/img96/7313/070827northwooddirecthith7.gif

http://img404.imageshack.us/img404/8844/070827northwood0149ct0.th.png


Grand Forks Herald: News Site
Damage to one of the town's biggest emloyers, AgVise Laboratories,
a major soil and plant-testing company.
http://img235.imageshack.us/img235/5821/sav827damage3ns8.jpg(Herald photo by Sarah Voegele)

CEO of AgVise: "business totalled".
http://img214.imageshack.us/img214/7427/jml827damage9br5.jpg
(Herald photo by Jackie Lorentz)

Grand Forks Herald: "One killed in Northwood tornado, extensive damage"
City of Northwood (seems like such a nice place http://www.stormtrack.org/forum/images/smilies/frown.gif): town website

#122 User is offline   tornadotony 

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Posted 27 August 2007 - 03:04 PM

View PostSam Sagnella, on Aug 27 2007, 02:27 PM, said:

A brief compilation of some misc information about the Northwood tornado.

"Very preliminary damage indications would place the Northwood tornado as a strong Enhanced Fujita Scale (EF) 3 or weak EF4. Wind speeds in an EF3 tornado range from 138 to 167 mph, with EF4 wind speeds in the 168 to 199 mph range. Additional information would indicate that this tornado was approximately 8/10 of a mile wide." -WFO FGF: "Additional Information on Sunday Evening Tornadoes"

Does anyone know if the QRT is going to be dispatched, or has that been 'disbanded' since the new Enhanced Fujity Scale was implemented?

http://img96.imageshack.us/img96/7313/070827northwooddirecthith7.gif

http://img404.imageshack.us/img404/8844/070827northwood0149ct0.th.png
Grand Forks Herald: News Site
Damage to one of the town's biggest emloyers, AgVise Laboratories,
a major soil and plant-testing company.
http://www.grandforksherald.com/gfx/photos/full/sav827damage3.jpg
(Herald photo by Sarah Voegele)

CEO of AgVise: "business totalled".
http://www.grandforksherald.com/gfx/photos/full/jml827damage9.jpg
(Herald photo by Jackie Lorentz)

Grand Forks Herald: "One killed in Northwood tornado, extensive damage"
City of Northwood (seems like such a nice place http://www.stormtrack.org/forum/images/smilies/frown.gif): town website

The QRT is still in place. I'm guessing that it's likely that one will be sent to the scene today and survey tomorrow.

#123 User is offline   earthlight 


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Posted 27 August 2007 - 03:12 PM

View Postchizniz16, on Aug 27 2007, 02:28 PM, said:

Hmm, yeah I must have missed that paragraph, but by that time the storms had alreayd initiated lol, so Im not going to give them credit for "predicting" storms that had already fired. I was reffering to the the overall Spc on the subject, such as prior mentioning of the event before it happened already, and the lack of attention to it in general. They under-did it. period. just like I think they did on last nights outlook.


You are completely out of line. The Storm Prediction Center did an excellent job last night in predicting the severe weather event that occured. I'm not sure where your confusion is, last I checked, there was capping evident on soundings until 18z. Then, when around 00z modified soundings indicated that most of the cap should have eroded, SPC popped in a Tornado Watch, before any initiation had occurred. The tornado watch covered at least 90% of the severe weather reports, with the few outside of them being storms that were likely rooted above the boundary layer later that evening.

#124 User is offline   Sam Sagnella 


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Posted 27 August 2007 - 07:24 PM

NOUS43 KFGF 272312
PNSFGF

PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE GRAND FORKS ND
612 PM CDT MON AUG 27 2007

..KMVX 88D RADAR FROM MAYVILLE IS DOWN..

THE MAYVILLE 88D RADAR (KMVX) IS DOWN AS OF 529 PM 8/27/07.
MAINTENANCE HAS BEEN CALLED BUT UP TIME IS NOT KNOWN. WE APOLOGIZE
FOR ANY INCONVENIENCE. SURROUNDING RADARS FROM KDLH...KABR...AND
KMPX CAN BE USED TO MONITOR STORMS IN WEST CENTRAL MINNESOTA THIS
EVENING.

There have been a few reports of baseball sized hail in Aitkin County, MN from a cell that has weakened dramatically during the last half hour. We're lucky this didn't happen 24 hours earlier.

#125 User is offline   chizniz16 


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Posted 27 August 2007 - 07:47 PM

View Postearthlight, on Aug 27 2007, 03:12 PM, said:

You are completely out of line. The Storm Prediction Center did an excellent job last night in predicting the severe weather event that occured. I'm not sure where your confusion is, last I checked, there was capping evident on soundings until 18z. Then, when around 00z modified soundings indicated that most of the cap should have eroded, SPC popped in a Tornado Watch, before any initiation had occurred. The tornado watch covered at least 90% of the severe weather reports, with the few outside of them being storms that were likely rooted above the boundary layer later that evening.


...And you are completely out of line talking about a conversation which you have no business in..Do you realize I wasn't talking about anything to do with tornados? nor North Dakota, nor northern Minnesota. Look before you go on a rant about someone. I was talking about the line of storms that moved through the Twin cities metro area last night at 2AM central. I live in Minnesota and I know what happened here, what happened with the local mets.. Thanks for your intrest but dont come at me like that.

#126 User is offline   sprite 

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Posted 27 August 2007 - 07:50 PM

View Postchizniz16, on Aug 27 2007, 08:47 PM, said:

...And you are completely out of line talking about a conversation which you have no business in..Do you realize I wasn't talking about anything to do with tornados? nor North Dakota, nor northern Minnesota. Look before you go on a rant about someone. I was talking about the line is weak storms that moved through the Twin cities metro area last night at 2AM central. I live in Minnesota and I know what happened here, what happened with the local mets.. Thanks for your intrest but dont come at me like that. got it?

How did the SPC mess up if the storms were non-severe?

#127 User is offline   chizniz16 


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Posted 27 August 2007 - 07:51 PM

They actually were severe...again do your research, and stay out of other peoples business. Thanks

#128 User is offline   earthlight 


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Posted 27 August 2007 - 08:05 PM

View Postchizniz16, on Aug 27 2007, 08:47 PM, said:

...And you are completely out of line talking about a conversation which you have no business in..Do you realize I wasn't talking about anything to do with tornados? nor North Dakota, nor northern Minnesota. Look before you go on a rant about someone. I was talking about the line of storms that moved through the Twin cities metro area last night at 2AM central. I live in Minnesota and I know what happened here, what happened with the local mets.. Thanks for your intrest but dont come at me like that.


Excuse me. Who do you think you are, a meteorologist at the Storm Prediction Center? Oh thats right, they are the ones that are getting paid to do the job. I know exactly what I was talking about, those storms were elevated, probably below severe limits. Please....leave the job for the professionals. We don't need you critiquing their job because you didn't get a severe thunderstorm watch in your backyard.

#129 User is offline   dakota 


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Posted 27 August 2007 - 08:23 PM

View Posttornadotony, on Aug 27 2007, 02:04 PM, said:

The QRT is still in place. I'm guessing that it's likely that one will be sent to the scene today and survey tomorrow.



Our office called the QRT people in region and response was that our local staff can handle the survey and make the final call on EF rating.

Dan NWS FGF

#130 User is offline   tornadotony 

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Posted 27 August 2007 - 08:28 PM

View Postdakota, on Aug 27 2007, 08:23 PM, said:

Our office called the QRT people in region and response was that our local staff can handle the survey and make the final call on EF rating.

Dan NWS FGF

Thank you for clarifying. I knew that there was one violent survey this year done by an office w/o QRT on site, but I was mistaken that offices normally had to have a QRT member surveying this type of damage.

#131 User is offline   sprite 

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Posted 27 August 2007 - 08:31 PM

I thought the new EF scale would eliminate the need for QRT?

#132 User is offline   DVDweather 

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Posted 27 August 2007 - 08:32 PM

View Postchizniz16, on Aug 27 2007, 08:51 PM, said:

They actually were severe...again do your research, and stay out of other peoples business. Thanks

I tried to do the research on the last page http://www.easternuswx.com/bb/index.php?s=...t&p=2085559, but you never replied to that. Officially, there have been no severe reports from the Twin Cities area. I saw a couple of severe thunderstorm warnings last night around Minneapolis, but no verification so far based on the lack of any reports received.

#133 User is online   wxmann_91 

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Posted 27 August 2007 - 08:49 PM

View Postchizniz16, on Aug 27 2007, 05:47 PM, said:

...And you are completely out of line talking about a conversation which you have no business in..Do you realize I wasn't talking about anything to do with tornados? nor North Dakota, nor northern Minnesota. Look before you go on a rant about someone. I was talking about the line of storms that moved through the Twin cities metro area last night at 2AM central. I live in Minnesota and I know what happened here, what happened with the local mets.. Thanks for your intrest but dont come at me like that.

The Twin Cities was under a 5% risk for hail and wind yesterday, IIRC.

#134 User is offline   f2tornado 


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Posted 28 August 2007 - 12:50 PM

Updated chase summary with additional pics of storms in and around Northwood Little did I know I was just minutes ahead of a deadly EF4 tornado.

http://www.plainschase.com/photos/2007/storm08262007/1.JPG

#135 User is offline   dakota 


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Posted 28 August 2007 - 04:20 PM

For those interested...

Updated photos taken by our storm survey team and other info is posted on NWS FGF website

www.crh.noaa.gov/fgf


Final determination it was rated an EF4.... I have not seen any pictures of the actual Northwood Tornado....we do have a copy of some video of a tornado west of this location in southeast Nelson county. It was rated an EF2 today and did kill a buffalo and some outbuildings but it was over farmland. Last death in North Dakota from a Tornado was in 1997. About the man killed...relatives urged him to leave but he was on oxygen and had to move all the equipment and just felt better staying put. But from our pictures...those mobile homes were not the most secure I have seen either. For once the NWS got good press....original TOR warning for southeast Nelson and southwest Grand Forks county was issued at 750 pm with Northwood mentioned in path at 845 pm. It hit right near 850 pm so about an hour lead time which is very rare but fortunate.

Dan FGF

#136 User is offline   tornadotony 

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Posted 28 August 2007 - 05:08 PM

This is also the first violent tornado in August in the US since the Medina tornado in 2002.

#137 User is offline   yt2095 


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Posted 29 August 2007 - 04:31 PM

View Postchizniz16, on Aug 27 2007, 06:51 PM, said:

They actually were severe.


I see MPX issued one Severe Thunderstorm Warning the entire night, at 1:47 a.m. Monday Aug 27, for three metro counties. No reports received, apparently, so who knows if there was any 3/4" hail that went unreported. (Altho maybe they haven't issued a storm report, but they seem to issue them pretty regularly). We had a lot of lightning, and I lost power here in Arden Hills. The SPC had a 5% risk for hail extending into the northwest metro as early as their outlook on Sunday at 0539Z, and across the entire metro at 1249Z. Seems to me they did a pretty good job. To be sure, they miss a few, but not this time.

#138 User is offline   MEkster 


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Posted 29 August 2007 - 09:59 PM

View Postchizniz16, on Aug 27 2007, 08:47 PM, said:

...And you are completely out of line talking about a conversation which you have no business in..Do you realize I wasn't talking about anything to do with tornados? nor North Dakota, nor northern Minnesota. Look before you go on a rant about someone. I was talking about the line of storms that moved through the Twin cities metro area last night at 2AM central. I live in Minnesota and I know what happened here, what happened with the local mets.. Thanks for your intrest but dont come at me like that.


This attitude is uncalled for on the weather side regardless of whether you were wrong or right. It appears as though you were
wrong as there are no severe reports in the time frame and area you pointed out. You were out of line.

#139 User is offline   tornadotony 

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Posted 31 August 2007 - 05:59 PM

Two more significant tracks added by FGF, an EF3 and an EF2.

http://www.crh.noaa....hwood_tor_track

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