Matthew Crowther
EF4
Looks like the real show is going to be farther north mainly in WI- veered surface winds and mixed-out moisture resulting in high T-TD soreads is limiting the tornado threat in IA and SE Minnesota.
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3/25/07 NOW: IA/WI/MN/IL
- Thread starter Jeremy Ludin
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Bob Schafer
EF5
Here are some parameters that the line of convection S MPX are facing (per 21Z mesoanalysis):
MLCAPE: ~500 to 750j/kg
LCL: 1250 to 1500m
ESRH: ~150m2/s2
LFC: 1400 to 1600m
LI: -3
MLCAPE: ~500 to 750j/kg
LCL: 1250 to 1500m
ESRH: ~150m2/s2
LFC: 1400 to 1600m
LI: -3
rdale
EF5
Your radar image was a half-hour old when you pasted it... MPX is down.
Show Time in Minnesota
AT 420 PM CDT...RADAR WAS TRACKING A SEVERE STORM WITH STRONG
ROTATION. THE MOST DANGEROUS PART OF THE STORM WAS NEAR
VERMILLION...OR ABOUT 12 MILES NORTH OF CANNON FALLS...AND MOVING
NORTHEAST AT 50 MPH.
* LOCATIONS IMPACTED INCLUDE...
HASTINGS...
PRESCOTT...
rdale
EF5
DP spreads aren't any better in WI either - probably a good deal of funnel reports but limited touchdown potential (at least for a while.)
MatthewCarman
while this radar is not good for viewing rotation or dbz it will show you where the storms are at and you never have to worry about it being down. Plus you can zoom in to the very street your on. Hope this helps anyone who needs the radar in the MN area. http://www.weather.com/wxgold/modules/goldflashmap.html
As for the storms it looks like they are all in MN right now any chance a cap could be holding storms from firing in NE IA?
As for the storms it looks like they are all in MN right now any chance a cap could be holding storms from firing in NE IA?
Bob Schafer
EF5
I'm just viewing the ARX/DLH radars. Good enough.
As for NE IA, I'd say there just isn't enough instability down there. Being farther from the sfc low, the forcing isn't strong enough. SPC Mesoanalysis shows no CINH.
Seems kinda weird...all the mid-40's Td's in C IA. Even back into SD there are Td's in the 50's.
As for NE IA, I'd say there just isn't enough instability down there. Being farther from the sfc low, the forcing isn't strong enough. SPC Mesoanalysis shows no CINH.
Seems kinda weird...all the mid-40's Td's in C IA. Even back into SD there are Td's in the 50's.
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HAltschule
EF5
It looks like the news cells now forming East of Lacrosse on the Lacrosse, WI radar site will have the best chance of being discrete before they become linear.
HAltschule
EF5
The cell over Northern Jackson County/Southern Clark County, WI now has a TVS and strong shear on the northern part of the storm (oddly enough). Will be interesting to see if this persists.
Josh Richardson
EF4
In Rochester right now and simply annoyed. Not much of anything happening out here. Looks like cells are going to start going more in WI than they are here.
Bill Hark
EF5
I agree Matt. I have suprised all day at the Mod Risk across WI as both the NAM and RUC have been predicting SW surface winds since last night for WI except the extreme NE part of the state. This prediction is verifying according the current surface obs. I've seen severe thunderstorms but rarely tornadoes with SW surface winds.
Bill Hark
Michael Rogers
Small bow starting to form just south of Eau Claire WI. With many trees in that area, there could be some sig. damage to come.
EDIT: MD just issued for this bow echo...
EDIT: MD just issued for this bow echo...
Skip Talbot
EF5
Jenny and I just watched our only storm of the day, the crappy high based shower that it was, evaporate into nothing in SE MN off I-90. Heading home... bustola.
David Draun
EF5
It's gotta be the lack of forcing! The Mesoanalysis page shows that there is still no CINH of any value out there, even as we start to lose daytime heating. Parameters are really starting to rise in Northern IL, kind of out of the risk area. However 1km EHI is up to 2.0. LCL's and LFC's are low and fairly close together. If only we had some forcing. It also would really help if some of these mid and high level clouds cleared out. I have an overcast over me. That has likely kept temps from breaking 80 for the first time this year. It was 78 here in Dekalb before things got cloudy.
Brandon Sullivan
EF5
Im wondering if it had something to do with the dew point depression.. It was pretty significant.. Im not sure.. I think they issued some CYB ( cover their butt ) watches.. Im not sure it warranted moderate risk.. But who am I to talk..
Bob Schafer
EF5
The warned storm in Wood county really has my interest. It is discrete, rotating, 69dbz, and cloud top of 40K already.
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