10/29/04 NOW: Upper Midwest

Joined
Feb 19, 2004
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Location
Erie IL
Some of the moisture must be getting mixed out as the Td's have dropped to the low 60's right ahead of the front. That's not too good.

There is a ling of cumulus along the CF now though in western IA. Looks like a thin squal line will be what will emerge out of that.

Further north in southern MN currently looks the best for tornadic activity.

It feels like summer here in NW IL. Td's nearing 70!!?!?
 
[2105Z]Nice cell going up in Sibley Co., MN that looks to track west of the Twin Cities over the next 60-90 minutes. Other cells popping up in Emmet Co., IA and Martin Co., MN.

Regards,

Mike
 
Looks like stuff in central MN is taking advantage of good moistconv but running away from good instab - and stuff south has the juice to pop but not sustaining...
 
[2120z] Storm over Sibley Co. MN is holding together, currently showing an elevated core of >60dbz while cell just south of Mankato in Blue Earth Co. MN continues to intensify with a deep elevated core of >50dbz returns now.

Regards,

Mike
 
Yep, looks like that cell west of the Twin Cities will be of little significance. On the other hand, the cells from Mankato south into IA should be able to take advantage of >250 m2/s2 0-1km SRH over southeast MN. Should be interesting over the nest few hours.

Regards,

Mike
 
[2158z] Looks like a isolated cell is trying to develop over northeastern Wnnebago Co., IA/southern Freeborn Co. MN in advance of the squall line. Cells north of Mankato still holding together and moving towards the Twin Cities, but nothing too impressive as of yet.

Also interesting is line of TCU's from developing from northwest MO into cetral IA in advance of squall line and cold front.

Regards,

Mike
 
[2209Z] Isolated cells now popping up over central IA in advance of squall line. Most interesting cell at the moment os over Decatur Co, moving into southern Clarke Co.

Regards,

Mike
 
Update from NE WI

(ADMIN delete: currents from GRB. -mpalmer)

TWC radar shows a nice hook developing on that storm south of Des Moines.
 
Trees and power lines downed in jasper co. iowa. The storms are moving ENE and NE at 50-65mph.

Radar is detecting 70knot winds in the storms east of St paul Minn. Its gonna be a long night.

EDIT. Tornado warnings up for Livingston and ford counties in Ill. Strong rotation on radar, well defined hook echo.
 
Supercell storm in Livingston County, IL. Southwest of Chicago. It is tornado warned. 60 dBz core. Isolated storms and occasional supercells have been popping in the warm sector for some time now.

Wow! Tornado watches up from the southern plains to the Canadian border. Incredible!
 
Bean shaped 55kft tall supercell storm with damaging winds and intense lightning is about to strike near campus. It is hauling butt to the NNE, and probably will be here in about 15-20 minutes. 70 dBz core!
 
Tornado Reports:
0525 PM TORNADO 2 SW BUCKMAN 45.88N 94.12W
10/29/2004 MORRISON MN PUBLIC
UNCONFIRMED REPORT OF TOUCHDOWN IN OPEN FIELD.

0548 PM TORNADO 1 N GILMAN 45.75N 93.95W
10/29/2004 BENTON MN PUBLIC
UNCONFIRMED REPORT OF TOUCHDOWN IN OPEN FIELD.

0648 PM TORNADO 7 WSW RUSH CITY 45.64N 93.10W
10/29/2004 CHISAGO MN LAW ENFORCEMENT
UNCONFIRMED REPORT OF BRIEF TOUCHDOWN JUST EAST OF
ISANTI-CHISAGO COUNTY LINE.
Mike
 
Bean shaped 55kft tall supercell storm with damaging winds and intense lightning is about to strike near campus. It is hauling butt to the NNE, and probably will be here in about 15-20 minutes. 70 dBz core!

This is not exactly a report, so I'll put it here. This storm just missed campus but it did hit downtown Dekalb with 1 inch hail and some wind damage. Lightning took out two trees on campus. and as the rear of the storm passed, there was quite a strong downdraft, probably an RFD. I was waiting for a tornado.This storm just raced on by though. The squall line that blasted through later wasn't too shabby either. It was intense, but the wind was below severe, IMO. Lots of lightning though, so springlike.
 
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