Author Topic: April 7-11 severe outbreak potential  (Read 11774 times)

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Offline IMADreamer

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April 7-11 severe outbreak potential
« on: April 06, 2011, 04:36:41 PM »
Here we go again folks.  All signs point to 3 days or so of severe weather starting with a not so great chance on Thursday and pretty big things Saturday and Sunday.  Discuss!
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Offline The Garden Meterologist

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Re: April 7-11 severe outbreak potential
« Reply #1 on: April 06, 2011, 08:01:30 PM »
Here is round 6 of violent weather again here is the info go to http://www.spc.noaa.gov/products/outlook/day2otlk_1730_prt.html  :roll: :roll:

Offline Andy Thompson

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« Last Edit: April 06, 2011, 08:13:12 PM by Andy Thompson »
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Offline The Garden Meterologist

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Offline Downlinerz2

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Re: April 7-11 severe outbreak potential
« Reply #4 on: April 07, 2011, 05:04:19 PM »
    Checking out the possibilties for my area here in NW Ohio and the Day 4 outlook from SPC includes us and the confidence in this severe event is "high".

...DAY 4 /SUN APR 10/...
   THE POTENTIAL FOR A REGIONAL SEVERE THREAT EXTENDING FROM NRN LA TO
   IA AND EWD THROUGH THE TN/OH VALLEYS AND PART OF THE WRN GREAT LAKES
   FROM SUNDAY AFTERNOON THROUGH SUNDAY NIGHT/EARLY MONDAY MORNING
   REMAINS VERY LIKELY.  CONFIDENCE REMAINS HIGH FOR THIS SEVERE
   WEATHER EVENT WITH THE POTENTIAL FOR DAMAGING WINDS AND TORNADOES AS
   STRONG HEIGHT FALLS SPREAD ACROSS THE DAY 4 OUTLOOK AREA...
   ESPECIALLY DURING THE LATTER HALF OF THE FORECAST PERIOD.
 
   A SURFACE LOW ATTENDANT TO THE PROGRESSIVE MID-UPPER LEVEL TROUGH IS
   EXPECTED TO TRACK FROM WRN KS INTO IA BY LATE SUNDAY AFTERNOON AND
   REACH THE WRN GREAT LAKES BY 12Z MONDAY.  A TRAILING COLD FRONT IS
   EXPECTED TO OVERTAKE THE PLAINS DRY LINE WITH TSTMS DEVELOPING
   INITIALLY FROM ERN OK TO WRN IA.  SLY LOW LEVEL WINDS WILL MAINTAIN
   A MOIST AIR MASS ALREADY IN PLACE AT THE START OF DAY 4 AND SUPPORT
   A MODERATELY UNSTABLE WARM SECTOR.  STRENGTHENING DEEP LAYER WIND
   FIELDS ACROSS THE UNSTABLE AIR MASS WILL PROMOTE BOTH LINE SEGMENTS
   AND SUPERCELLS WITH THE INITIAL ACTIVITY SPREADING TO THE MS VALLEY.
   FOR SUNDAY NIGHT...THE SEVERE WEATHER THREAT SHOULD EVOLVE TO
   PRIMARILY DAMAGING WINDS AS A BROAD SWLY LLJ /50-70 KT/ DEVELOPS
   FROM THE MID SOUTH TO OH VALLEY AND A SQUALL LINE ADVANCES EWD FROM
   THE MS VALLEY.
  With much warmer temps moving into the area, possibly up to 80, this kind of event is almost inevitable. I have to do much more checking on the models to see what is happening for my area specifically.  Thats the fun part!!! :grin:
   Mark

Offline WeatherHost

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Re: April 7-11 severe outbreak potential
« Reply #5 on: April 07, 2011, 05:46:12 PM »
I don't know how many of you watch WGN's weather, but one of their Mets stated the other day that there have been significantly more LSRs to date this year than last.

I'm not sure if there have really been that many more damaging storms or if there are just more reports filed by more people.


Offline IMADreamer

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Re: April 7-11 severe outbreak potential
« Reply #6 on: April 07, 2011, 06:08:12 PM »
I don't know how many of you watch WGN's weather, but one of their Mets stated the other day that there have been significantly more LSRs to date this year than last.

I'm not sure if there have really been that many more damaging storms or if there are just more reports filed by more people.



Well the last storm system broke the record for single day reports.  It was in the neighborhood of 1100.  This year seems active for sure, I mean heck on New Years Eve we were tornado warned three times in my county. 


anyway, getting less confident about this whole thing for my neck of the woods.  It looks like it will still be a good event but today was a total bust and Saturday looks to be less favorable right now so Sunday has got to be the day. 
Hello my name is Jason, I am a Meteorologist, farmer, and auto journalist.
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Offline Downlinerz2

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Re: April 7-11 severe outbreak potential
« Reply #7 on: April 07, 2011, 06:15:03 PM »
I don't know how many of you watch WGN's weather, but one of their Mets stated the other day that there have been significantly more LSRs to date this year than last.
I'm not sure if there have really been that many more damaging storms or if there are just more reports filed by more people.
   I do like to watch the weather on WGN but I did not see that.Tom Skilling is one of my favorite mets. I like his weather blog/forecast too. He has an "ask Tom" section maybe you should ask him why the LSR's are increased this year.
    Mark

Offline G2003

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Re: April 7-11 severe outbreak potential
« Reply #8 on: April 07, 2011, 07:04:32 PM »
It will be interesting to see what kind of action we'll see here in the Chicago area on Sunday. They are predicting our first 80 degree day of the year that day!

Offline SlowModem

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Re: April 7-11 severe outbreak potential
« Reply #9 on: April 07, 2011, 07:41:51 PM »
I don't know how many of you watch WGN's weather, but one of their Mets stated the other day that there have been significantly more LSRs to date this year than last.

So what is an LSR?
Greg Whitehead
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Offline The Garden Meterologist

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Re: April 7-11 severe outbreak potential
« Reply #10 on: April 07, 2011, 08:40:54 PM »
I don't know how many of you watch WGN's weather, but one of their Mets stated the other day that there have been significantly more LSRs to date this year than last.

So what is an LSR?

Local Storm Report.
I ran RUC Model here is showing a bust for Minnesota here. I checked the forecast for sunday they pulled thunderstorms for change it showers.
« Last Edit: April 07, 2011, 08:55:52 PM by The Garden Meterologist »

Offline IMADreamer

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Re: April 7-11 severe outbreak potential
« Reply #11 on: April 07, 2011, 10:59:04 PM »
The new NAM is bringing in even more instability over Mo, IA, IL region, still going to need something to kick the action off though.  I've heard a few grumblings about Sunday being a high risk day but I'm skeptical on that.  Moderate would seem likely though.
Hello my name is Jason, I am a Meteorologist, farmer, and auto journalist.
www.infinite-garage.com

Offline WeatherHost

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Re: April 7-11 severe outbreak potential
« Reply #12 on: April 08, 2011, 12:00:43 AM »
SPC has us in the ring for the next 3 days but our local mets haven't been saying much about it beyond 'a chance of rain'.


Offline The Garden Meterologist

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Re: April 7-11 severe outbreak potential
« Reply #13 on: April 08, 2011, 01:28:05 AM »
I just ran the NAM-WRF Model you are dight IMADreamer IL might get nailed. it showing mn still in the bust zone.

Offline Andy Thompson

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Re: April 7-11 severe outbreak potential
« Reply #14 on: April 08, 2011, 07:36:49 AM »
Here is an updated map for late Saturday into Sunday.
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Andy Thompson
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Offline The Garden Meterologist

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Re: April 7-11 severe outbreak potential
« Reply #15 on: April 08, 2011, 08:31:42 AM »
The Weather story for sunday and sunday night we might get it. Here is the info.

Offline IMADreamer

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Re: April 7-11 severe outbreak potential
« Reply #16 on: April 08, 2011, 10:21:30 AM »
Well things are coming together nicely I see.  Quite a large hatched area and that 45% zone is sizable as well. 
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Offline Downlinerz2

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Re: April 7-11 severe outbreak potential
« Reply #17 on: April 08, 2011, 11:49:12 AM »
   Current threats map from Climate Prediction Center.
     Mark

Offline IMADreamer

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Re: April 7-11 severe outbreak potential
« Reply #18 on: April 08, 2011, 03:41:29 PM »
Got several areas cooking now. Looks like the weekend has finally begun. 
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Offline Downlinerz2

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Re: April 7-11 severe outbreak potential
« Reply #19 on: April 08, 2011, 05:32:42 PM »
   There is a small area on Sunday afternoon-evening where the Cravens-Brooks Significant Severe Parameter has a 50% + probablility of 60,000.
   Mark

Offline WeatherHost

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Re: April 7-11 severe outbreak potential
« Reply #20 on: April 09, 2011, 06:53:41 AM »
A lot of scattered small cells that blow up and prompt brief warnings happening now.


Offline chief-david

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Re: April 7-11 severe outbreak potential
« Reply #21 on: April 09, 2011, 10:25:04 AM »
1 in SW Minnesota

Look out Andy



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Offline IMADreamer

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Re: April 7-11 severe outbreak potential
« Reply #22 on: April 09, 2011, 01:11:29 PM »
Well two moderate days in a row.  Iowa, WS, MN looks to be the bullseye.  I'm jealous.
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Offline chief-david

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Re: April 7-11 severe outbreak potential
« Reply #23 on: April 09, 2011, 02:19:43 PM »
Never jealous about receiving severe weather.   
The rain may get rid of the snow piles on the north side of buildings and below trees.

Minnesota had more tornadoes in 2010 than any other state.



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Offline chief-david

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Re: April 7-11 severe outbreak potential
« Reply #24 on: April 09, 2011, 08:19:17 PM »
Cap must be off

Western Iowa, Eastern Nebraska and SE South Dakota are active.



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