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June 6-9th Severe Weather


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EF-1 confirmed off to the southwest of Madison yesterday...

0741 PM TORNADO 2 WSW VERONA 42.98N 89.57W

06/08/2011 F1 DANE WI NWS STORM SURVEY

EF1 TORNADO BEGAN AT 741 PM 2.5 MI. WSW OF VERONA AND

ENDED AT 802 PM 3.0 MI NE OF MCFARLAND, WI...A DISTANCE

OF ABOUT 15 MILES. ESTIMATED 86-90 MPH WINDS. TREES

UPROOTED, POWER LINES DOWN, NO INJURIES OR DEATHS. PATH

WIDTH ABOUT 100 YARDS.

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sebewaing is a mess, i bet at least 25% of the trees in town came down. Most roads closed/blocked. The airport is pretty much destoryed, hangers torn apart, planes flipped and wrecked. Barns destroyed around and outside of town. Seen a enclosed snowmoblie trailer flipped over in a field about a 1/2 mile from the nearest farm. Worst storm locally in the past 5 years. Had some gusts to near 60mph at my house, a few big limbs down in my town, but nothing compared to 20 miles to the west.

http://www.wnem.com/index.html pics and video from the local news stations.

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"surprise"

BULLETIN - EAS ACTIVATION REQUESTED

TORNADO WARNING

NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL

509 PM CDT THU JUN 9 2011

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A

* TORNADO WARNING FOR...

SOUTHERN FORD COUNTY...

SOUTHWESTERN IROQUOIS COUNTY...

* UNTIL 600 PM CDT

* AT 505 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED NEAR GIBSON CITY...AND MOVING EAST AT 25 MPH.

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sebewaing is a mess, i bet at least 25% of the trees in town came down. Most roads closed/blocked. The airport is pretty much destoryed, hangers torn apart, planes flipped and wrecked. Barns destroyed around and outside of town. Seen a enclosed snowmoblie trailer flipped over in a field about a 1/2 mile from the nearest farm. Worst storm locally in the past 5 years. Had some gusts to near 60mph at my house, a few big limbs down in my town, but nothing compared to 20 miles to the west.

http://www.wnem.com/index.html pics and video from the local news stations.

I believe this was the same storm that had produced the tornado warning/possible tornado for Clare County.

1040 PM TSTM WND DMG 3 N LAKE GEORGE 44.00N 84.94W

06/08/2011 CLARE MI EMERGENCY MNGR

NUMEROUS TREES DOWN IN REDDING AND GREENWOOD TOWNSHIPS.

POSSIBLE TORNADO. NWS SURVEY TEAM EN ROUTE TO DETERMINE

CAUSE. TIME ESTIMATED FROM RADAR.

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BULLETIN - EAS ACTIVATION REQUESTED

TORNADO WARNING

NATIONAL WEATHER SERVICE LINCOLN IL

536 PM CDT THU JUN 9 2011

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* TORNADO WARNING FOR...

NORTHEASTERN CHAMPAIGN COUNTY IN EAST CENTRAL ILLINOIS...

NORTHERN VERMILION COUNTY IN EAST CENTRAL ILLINOIS...

* UNTIL 615 PM CDT.

* AT 534 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A

SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS

STORM WAS LOCATED NEAR PAXTON...AND MOVING SOUTHEAST AT 30 MPH.

* LOCATIONS IMPACTED INCLUDE...

GIFFORD...POTOMAC...ROSSVILLE...ARMSTRONG...MIDDLE FORK WILDLIFE

AREA...COLLISON...HENNING AND ALVIN.

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where did you get this?

Short Fuse Composite Maps: http://www.crh.noaa....op/?n=shortfuse

I made a little map on my website that shows the domains of the WFO's that have SFC maps, and linked them on that same map: http://www.lblaforce.com/wx (have to scroll down a little bit)

Oh yeah, some of the WFO's SFC maps have been messed up-like not showing certain parameters, or the completely wrong date.

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SEVERE WEATHER STATEMENT

NATIONAL WEATHER SERVICE LINCOLN IL

605 PM CDT THU JUN 9 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHERN VERMILION COUNTY UNTIL 615 PM CDT...

AT 600 PM CDT...COUNTY EMERGENCY MANAGEMENT TRAINED WEATHER SPOTTERS REPORTED A FUNNEL CLOUD OVER ARMSTRONG. THIS SEVERE STORM WAS MOVING EAST AT 30 MPH.

LOCATIONS IMPACTED INCLUDE... ARMSTRONG...POTOMAC...ROSSVILLE...MIDDLE FORK WILDLIFE AREA...COLLISON...HENNING AND ALVIN.

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BULLETIN - EAS ACTIVATION REQUESTED

TORNADO WARNING

NATIONAL WEATHER SERVICE WICHITA KS

646 PM CDT THU JUN 9 2011

THE NATIONAL WEATHER SERVICE IN WICHITA HAS ISSUED A

* TORNADO WARNING FOR...

SOUTH CENTRAL HARVEY COUNTY IN SOUTH CENTRAL KANSAS...

NORTHERN SEDGWICK COUNTY IN SOUTH CENTRAL KANSAS...

* UNTIL 730 PM CDT

* AT 643 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE

TRACKING A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS

DANGEROUS STORM WAS LOCATED NEAR MOUNT HOPE...OR 18 MILES SOUTHWEST

OF NEWTON...AND MOVING EAST AT 20 MPH.

* LOCATIONS IMPACTED INCLUDE...

COLWICH...SEDGWICK...VALLEY CENTER...PARK CITY AND BENTLEY.

post-277-0-39017500-1307663190.png

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Thought I'd make this cool little schematic of a supercell on radar. As this storm passed just N of KICT radar, the radar caught a good glimpse of several of the features. In the schematic, you can see FFD divergence, which takes place in the core of the thunderstorm, FFD convergence at the leading flank, RFD convergence where the RFD rushes outward, inflow into the mesocyclone, and the mesocyclonic circulation itself. Pretty neat.

post-97-0-87867800-1307664916.png

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It's moving into Wichita now

BULLETIN - EAS ACTIVATION REQUESTED

TORNADO WARNING

NATIONAL WEATHER SERVICE WICHITA KS

719 PM CDT THU JUN 9 2011

THE NATIONAL WEATHER SERVICE IN WICHITA HAS ISSUED A

* TORNADO WARNING FOR...

WEST CENTRAL BUTLER COUNTY IN SOUTH CENTRAL KANSAS...

NORTHEASTERN SEDGWICK COUNTY IN SOUTH CENTRAL KANSAS...

* UNTIL 800 PM CDT

* AT 716 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE

TRACKING A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS

DANGEROUS STORM WAS LOCATED NEAR VALLEY CENTER...OR 8 MILES NORTH

OF DOWNTOWN WICHITA...AND MOVING EAST AT 30 MPH.

* LOCATIONS IMPACTED INCLUDE...

PARK CITY...EAST WICHITA...NORTHEAST WICHITA...ANDOVER...KECHI...

BEL AIRE...JABARA AIRPORT AND BENTON.

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enhanced tornado threat, LLJ kicking in........................

MESOSCALE DISCUSSION 1163 NWS STORM PREDICTION CENTER NORMAN OK 0743 PM CDT THU JUN 09 2011 AREAS AFFECTED...SE NEB..NE KS...NRN MO...WRN IL CONCERNING...TORNADO WATCH 453...454...455... VALID 100043Z - 100215Z THE SEVERE WEATHER THREAT FOR TORNADO WATCH 453...454...455...CONTINUES. THE SEVERE THREAT WILL CONTINUE ACROSS WEATHER WATCHES 453...454 AND 455 OVER THE NEXT FEW HOURS. THE MORE INTENSE CELLS WILL HAVE A THREAT FOR LARGE HAIL AND WIND DAMAGE. A TORNADO THREAT WILL ALSO EXIST ESPECIALLY IN ERN KS...FAR SE NEB AND NRN MO WHERE THE TORNADO THREAT IS EXPECTED TO INCREASE EARLY THIS EVENING. A CLUSTER OF INTENSE SUPERCELLS IS ONGOING IN ECNTRL KS ALONG AN AXIS OF STRONG INSTABILITY WITH MLCAPE VALUES IN THE 2500 TO 3500 J/KG RANGE. THE ACTIVITY IS LOCATED JUST AHEAD OF A COLD FRONT VERY CLOSE TO A LOW-LEVEL JET MAX EVIDENT ON MESOANALYSIS. AS THE LOW-LEVEL JET STRENGTHENS EARLY THIS EVENING...THE TORNADO THREAT SHOULD INCREASE AS SUPERCELLS INITIATE AND EXPAND IN COVERAGE. WSR-88D VWPS IN ERN KS...SE NEB AND NW MO SHOW 0-3 KM STORM RELATIVE HELICITIES IN THE 200 TO 400 M2/S2 RANGE SUGGESTING AN ISOLATED STRONG TORNADO THREAT MAY DEVELOP OVER THE NEXT FEW HOURS AS LOW-LEVEL SHEAR PROFILES BECOME MORE FAVORABLE DUE TO THE LOW-LEVEL JET. IN ADDITION...LARGE HAIL GREATER THAN 2 INCHES IN DIAMETER MAY OCCUR WITH THE MORE DOMINANT SUPERCELLS DUE TO THE VERY STEEP LAPSE RATES AND STRONG INSTABILITY IN PLACE. THE WIND DAMAGE THREAT MAY ALSO INCREASE ESPECIALLY IF STORMS CAN CONGEAL INTO A LINE AS IS SUGGESTED BY SEVERAL SHORT-TERM MODELS. FURTHER TO THE EAST ACROSS WW 455...A CLUSTER OF SEVERE STORMS IS ONGOING JUST UPSTREAM OF THE WATCH IN NRN MO ALONG THE NRN EDGE OF MODERATE INSTABILITY. THIS CLUSTER SHOULD CONTINUE HAVE A POTENTIAL FOR LARGE HAIL AND WIND DAMAGE MOVING INTO THE WRN PART OF WW 455 OVER THE NEXT HOUR ENABLING THE WATCH TO CONTINUE THROUGH EXPIRATION.. ..BROYLES.. 06/10/2011

post-4278-0-70388000-1307668678.gif

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Great Stuff!

Thought I'd make this cool little schematic of a supercell on radar. As this storm passed just N of KICT radar, the radar caught a good glimpse of several of the features. In the schematic, you can see FFD divergence, which takes place in the core of the thunderstorm, FFD convergence at the leading flank, RFD convergence where the RFD rushes outward, inflow into the mesocyclone, and the mesocyclonic circulation itself. Pretty neat.

post-97-0-87867800-1307664916.png

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Had a decent hailstorm move through. Somewhat unexpected since it seemed to intensify right over Ankeny. Got a few decent pictures and a video. Mostly an inch for me. Saw one hailstone closer to 1.25". Lasted a good 3-4 minutes I'd guess.

post-5624-0-93719600-1307674599.jpg

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