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May 27-June 2 Severe Weather


Hoosier

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via LOT....

 

HOWEVER...SHORT TERM GUIDANCE CONTINUES TO SHOW AN INCREASE IN
BOTH DEEP LAYER SHEAR AND LOW LEVEL SHEAR ACROSS THE CURRENT WATCH
AREA THROUGH THE REMAINDER OF THE AFTERNOON. THIS WILL HELP FOR
MORE ORGANIZED AND LONGER LIVED DEVELOPMENT ACROSS THE WESTERN
CWA...LEAVING THE THREAT OF HAIL/DAMAGING WINDS AS WELL AS
POSSIBLE TORNADOES. ALTHOUGH MORE ORGANIZED DEVELOPMENT IS MORE
LIKELY FOR THE WESTERN HALF OF THE CWA...SHORT TERM GUIDANCE IS
HINTING AT A SLIGHT INCREASE IN DEEP LAYER SHEAR MORE TOWARDS FAR
NORTHEAST ILLINOIS. THIS SLIGHT INCREASE COINCIDING WITH THE
CURRENT CAPE IN PLACE...COULD FAVOR SOME ISOLATED STRONGER
DEVELOPMENT IN THAT LOCATION IN THE NEXT COUPLE OF HOURS. WILL
NEED CONTINUE TO MONITOR DEVELOPMENT IN THAT LOCATION...WHICH
WOULD INCLUDE THE CITY OF CHICAGO/METRO AREA LATE THIS AFTERNOON
INTO THE EARLY EVENING...AS I COULD EASILY FORESEE AN UPSCALE IN
GROWTH IN BOTH INTENSITY AND COVERAGE.

EVEN IF THAT DOES NOT MATERIALIZE THROUGH LATE THIS
AFTERNOON...CONTINUE TO MONITOR A LARGER LINE OF THUNDERSTORMS
SITUATED FROM SOUTHERN IOWA SOUTH INTO MISSOURI. THIS LINE IS TIED
MORE CLOSELY TO FAIRLY STRONG MID LEVEL WAVE LIFTING NORTHEAST OUT
KANSAS AND ATTENDANT SURFACE TROUGH/BOUNDARY FROM IOWA INTO
MISSOURI. ALL GUIDANCE IS SHOWING THIS LINE OF THUNDERSTORMS
WILL INCREASE IN INTENSITY OVER THE NEXT COUPLE OF HOURS...WHICH
WOULD MAKE SENSE AS THIS LINE OF THUNDERSTORMS MOVES FURTHER
EAST/NORTHEAST INTO A MORE UNSTABLE ENVIRONMENT. STRONG FORCING
OWING TO LARGE SCALE SUPPORT AND LOW/MID LEVEL CONVERGENCE SHOULD
AID IN THIS LINE OF THUNDERSTORMS FURTHER BLOSSOMING AS IT MOVES
TOWARDS THE WESTERN ILLINOIS...ESPECIALLY AS DEEP LAYER SHEAR IS
ALSO INCREASING.
 

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pretty solid bowing structure headed toward QC

BULLETIN - EAS ACTIVATION REQUESTED

SEVERE THUNDERSTORM WARNING

NATIONAL WEATHER SERVICE QUAD CITIES IA IL

359 PM CDT THU MAY 30 2013

THE NATIONAL WEATHER SERVICE IN THE QUAD CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...

  SOUTHEASTERN BENTON COUNTY IN EAST CENTRAL IOWA...

  CEDAR COUNTY IN EAST CENTRAL IOWA...

  EASTERN DES MOINES COUNTY IN SOUTHEAST IOWA...

  IOWA COUNTY IN EAST CENTRAL IOWA...

  JOHNSON COUNTY IN EAST CENTRAL IOWA...

  SOUTHERN LINN COUNTY IN EAST CENTRAL IOWA...

  LOUISA COUNTY IN SOUTHEAST IOWA...

  MUSCATINE COUNTY IN EAST CENTRAL IOWA...

  WESTERN SCOTT COUNTY IN EAST CENTRAL IOWA...

  NORTHEASTERN WASHINGTON COUNTY IN SOUTHEAST IOWA...

  NORTHERN HENDERSON COUNTY IN WEST CENTRAL ILLINOIS...

  MERCER COUNTY IN NORTHWEST ILLINOIS...

  ROCK ISLAND COUNTY IN NORTHWEST ILLINOIS...

  NORTHWESTERN WARREN COUNTY IN WEST CENTRAL ILLINOIS...

* UNTIL 445 PM CDT

* AT 356 PM CDT...A LINE OF SEVERE THUNDERSTORMS WAS LOCATED ALONG A

  LINE EXTENDING FROM PARNELL TO MORNING SUN TO DALLAS CITY...AND

  MOVING NORTHEAST AT 60 MPH.

  THESE ARE VERY DANGEROUS STORMS.

  HAZARD...80 MPH WIND GUSTS.

 

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somewhat lame duck remnant linear MCS pushing through N. MO is starting to re-organize with new convection out ahead on the northern end.  This looks to push into Chicagoland later this evening.

further south on that line is starting to really fire and propagate east as well

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BULLETIN - EAS ACTIVATION REQUESTED  

TORNADO WARNING  

NATIONAL WEATHER SERVICE QUAD CITIES IA IL  

415 PM CDT THU MAY 30 2013  

 

THE NATIONAL WEATHER SERVICE IN THE QUAD CITIES HAS ISSUED A  

 

* TORNADO WARNING FOR...  

CENTRAL MUSCATINE COUNTY IN EAST CENTRAL IOWA...  

 

* UNTIL 445 PM CDT  

 

* AT 410 PM CDT...A CONFIRMED TORNADO WAS LOCATED NEAR LETTS...AND  

MOVING NORTHEAST AT 60 MPH.  

 

HAZARD...DAMAGING TORNADO.  

 

SOURCE...WEATHER SPOTTERS CONFIRMED TORNADO.  

 

IMPACT...MOBILE HOMES WILL BE HEAVILY DAMAGED OR DESTROYED.  

SIGNIFICANT DAMAGE TO ROOFS...WINDOWS AND VEHICLES WILL  

OCCUR. FLYING DEBRIS WILL BE DEADLY TO PEOPLE AND ANIMALS.  

EXTENSIVE TREE DAMAGE IS LIKELY.  

 

* LOCATIONS IMPACTED INCLUDE...  

MUSCATINE...WILTON...SWEETLAND CENTER AND MOSCOW.  

 

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Milwaukee force field almost always delivers, doesn't matter that it's 83F with dews reaching up near 70.  It always finds a way.  Now how will that cluster down SW of Chicago and that bow in E Iowa/W Illinois find a way to miss us too?

 

 

bummer

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It's still somewhat disorganized and has a long way to go but it's looking decent for at least the western 1/3 to get clipped

warnings now into Galesburg area.....

 

BULLETIN - EAS ACTIVATION REQUESTED

SEVERE THUNDERSTORM WARNING

NATIONAL WEATHER SERVICE LINCOLN IL

421 PM CDT THU MAY 30 2013

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...

  FULTON COUNTY IN WEST CENTRAL ILLINOIS...

  KNOX COUNTY IN WEST CENTRAL ILLINOIS...

  SCHUYLER COUNTY IN WEST CENTRAL ILLINOIS...

* UNTIL 515 PM CDT

* AT 417 PM CDT...A LINE OF SEVERE THUNDERSTORMS WAS LOCATED ALONG A

  LINE EXTENDING FROM 10 MILES NORTH OF ELIZA TO RARITAN TO

  BEVERLY...AND MOVING NORTHEAST AT 45 MPH.

  THESE ARE VERY DANGEROUS STORMS.

  HAZARD...80 MPH WIND GUSTS AND NICKEL SIZE HAIL.

 

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Been thinking about the range of possible outcomes tomorrow. To me, the ceiling would be something along the lines of 6/5/10 where there's several dozen tornadoes, some of them strong. The setups are different but the magnitude of shear/instability is somewhat similar and spatial coverage of favorable tornado parameters is as good or even better this time but with this one having more of a SW-NE tilt. OTOH, the floor may be something like 5-10 reports if destabilization is really held in check. Just my 2 cents.

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Been thinking about the range of possible outcomes tomorrow. To me, the ceiling would be something along the lines of 6/5/10 where there's several dozen tornadoes, some of them strong. The setups are different but the magnitude of shear/instability is somewhat similar and spatial coverage of favorable tornado parameters is as good or even better this time but with this one having more of a SW-NE tilt. OTOH, the floor may be something like 5-10 reports if destabilization is really held in check. Just my 2 cents.

If you had to pick an area that you think sees the most potential, where would you pick?

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Been thinking about the range of possible outcomes tomorrow. To me, the ceiling would be something along the lines of 6/5/10 where there's several dozen tornadoes, some of them strong. The setups are different but the magnitude of shear/instability is somewhat similar and spatial coverage of favorable tornado parameters is as good or even better this time but with this one having more of a SW-NE tilt. OTOH, the floor may be something like 5-10 reports if destabilization is really held in check. Just my 2 cents.

 

If we're talking about just our sub forum, I think the floor is maybe 1-2 reports...top end potential much better.  We'll have a much better idea later this evening when overnight MCS activity becomes more clear.

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reflectivity also beefing up a tad in Macomb to Galesburg stretch

 

I wonder how far the bow will make it?  If it makes it to Lake Michigan, I like Milwaukee to Waukegan, but given my thoughts on the Milwaukee force field, it would make more sense to me that it weakens as it moves into convectively overrun locations (though as Alek mentioned, recovery after t'storms seems to be quick in the region).

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I wonder how far the bow will make it?  If it makes it to Lake Michigan, I like Milwaukee to Waukegan, but given my thoughts on the Milwaukee force field, it would make more sense to me that it weakens as it moves into convectively overrun locations (though as Alek mentioned, recovery after t'storms seems to be quick in the region).

tough to tell...just when you think it's chillin' out a bit it surges....LOT touched on this line as well.....

 

EVEN IF THAT DOES NOT MATERIALIZE THROUGH LATE THIS

AFTERNOON...CONTINUE TO MONITOR A LARGER LINE OF THUNDERSTORMS

SITUATED FROM SOUTHERN IOWA SOUTH INTO MISSOURI. THIS LINE IS TIED

MORE CLOSELY TO FAIRLY STRONG MID LEVEL WAVE LIFTING NORTHEAST OUT

KANSAS AND ATTENDANT SURFACE TROUGH/BOUNDARY FROM IOWA INTO

MISSOURI. ALL GUIDANCE IS SHOWING THIS LINE OF THUNDERSTORMS

WILL INCREASE IN INTENSITY OVER THE NEXT COUPLE OF HOURS...WHICH

WOULD MAKE SENSE AS THIS LINE OF THUNDERSTORMS MOVES FURTHER

EAST/NORTHEAST INTO A MORE UNSTABLE ENVIRONMENT. STRONG FORCING

OWING TO LARGE SCALE SUPPORT AND LOW/MID LEVEL CONVERGENCE SHOULD

AID IN THIS LINE OF THUNDERSTORMS FURTHER BLOSSOMING AS IT MOVES

TOWARDS THE WESTERN ILLINOIS...ESPECIALLY AS DEEP LAYER SHEAR IS

ALSO INCREASING.

 

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