6-18-01 Osseo WI Supercell

 

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CU towers pushing against the cap.

 

CU finally glaciates to the west, chase is on.

 

Rain free base gets a pronounced lowering as we approach. This is along HWY 10 west of Osseo near Strum.

 

Awesome vertical motion under a rounded base.

 

Rotating like a drum just a mile away.

 

This was reported as a tornado. Can't believe it didn't drop a T with the amount of rotation observed. We moved east shortly after this and the meso fell apart.

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE LA CROSSE WI
829 PM CDT MON JUN 18 2001

THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A

* TORNADO WARNING FOR...
NORTHERN TREMPEALEAU COUNTY IN WEST CENTRAL WISCONSIN

* UNTIL 900 PM CDT

* AT 829 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
A TORNADO NEAR STRUM. SPOTTERS REPORT A FUNNEL OVER 
STRUM...3 OR ABOUT 12 MILES EAST OF MONDOVI...MOVING NORTHEAST 
AT 40 MPH.

* THE TORNADO IS EXPECTED TO BE...
NEAR OSSEO AT 840 PM CDT...

WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS
THAT STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY
NOT BE OCCURRING WHEN THE WARNING IS ISSUED...BUT ONE IS EXPECTED TO
DEVELOP. IF YOU ARE IN THE PATH OF THIS DANGEROUS STORM...TAKE COVER
IN A BASEMENT OR IN AN INTERIOR ROOM ON THE LOWEST FLOOR!

PLEASE REPORT ANY SEVERE WEATHER TO YOUR LOCAL LAW ENFORCEMENT OFFICE
AND TELL THEM TO RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE.

 

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