Ongoing Tornadic Weather: Ern Iowa including Iowa City

[SouthFloridawx]

Also when I'm looking at velocity... should I look at base velocity or storm relative velocity?

[SamSagnella]

storm-relative

[SouthFloridawx]

so this would be a good reason to issue a warning?

[CrazyC83]

so this would be a good reason to issue a warning?

That should be an instant Tornado Warning. If there aren't any on the ground with that, there could be at any time.

[SouthFloridawx]

I mean the bright greens and bright reds being really close together and also associated with a hook?

EDIT: In mercer county

[SamSagnella]

yes, that little 'notch' of green (inbound) to the NW of the word 'Mercer' would be where the tornado is.

[SouthFloridawx]

yes, that little 'notch' of green (inbound) to the NW of the word 'Mercer' would be where the tornado is.

That's what I thought thanks for the little education. I am learning a bit better now that I can look at it myself. Instead of watching it from a feed on a new station.

[Gorky]

A little off topic, but on my GRLvel3, the storm relative velocity display does not show any red.. It's all blue and green. Any ideas why that might be?

Such as this:



(p.s. look at the TVS algorithm going crazy )

[SouthFloridawx]

Just to clarify this is the area correct?

[SamSagnella]

in the first image that you originally posted, the tornado would be where the circle is.

[SouthFloridawx]

looking at the radar that whole storms seems to be rotating.

[SamSagnella]

supercells, by definition, are rotating thunderstorms

[SouthFloridawx]

And I just learned how to resize images... sorry about that guys LOL

[Gorky]

Earlier...the storm was just one huge BWER. I wouldn't be surprised if you could almost see daylight if you were in the middle of it Radar returns were showing >40dbz around a clearish centre(<12.5dbz). I classic doughnut shape... At the same time it had three tornados on the ground...


EdIt:

Damn.. the storm is showing up 11 TVS's on GRlevel3 now... There is a huge well pronounced inflow notch too... I'd guess conditions will remain favourable to sustain this for an hour two more... Hopefully not long enough for the cell to reach Peoria

[SamSagnella]

"Gazette photographer Brian Ray caught a funnel-shaped cloud hovering over the downtown Iowa City
area earlier tonight. Damage reports have been received from southwest Iowa City, Coralville,
downtown Iowa City and other areas. The all-clear sirens sounded in Iowa City about 9:55 p.m."
(Gazette photo/Brian Ray)

Cedar Rapids Gazette

[SamSagnella]

KCRG has posted a photo gallery of viewer-submitted photos of the event. Most of these are hail (some quite large) but there
are a couple in there of wall clouds and such.

http://community.webshots.com/slideshow?ID...3439&key=ijLEFw

[Gorky]

0045 IOWA CITY JOHNSON IA 4166 9154 *** 2 INJ *** WIDESPREAD DAMAGE TO DOWNTOWN IOWA CITY. 5 TO 10 PEOPLE TRAPPED IN DESTROYED AND COLLAPESED STRUCTURES. AT LEAST 2 CONFIRMED INJURIES. TIME ESTIMATED. (DVN)

[wxmann_91]

Unconfirmed fatality in Muscotine, IA.

Since there have been so far few reports from that area I'm imagining the destruction there is much worse than what we have seen from Iowa City.

[CrazyC83]

0220 NICHOLS MUSCATINE IA 4148 9131 *** 1 FATAL *** MOBILE HOME DESTROYED. STORM TRACK ESTIMATED AT LEAST 4 TO 5 MILES IN LENGTH. STORM SURVEY WILL BE DONE IN MORNING. TIME ESTIMATED. (DVN)

[Extremeweatherguy]

wow this really blew into a big event. I don't think anyone saw this coming today (to the level it has reached). So far there are 18+ tornado reports and 195+ total severe reports. There is also major damage in downtown Iowa city and at the University of Iowa. Severe weather is still ongoing further east. I could see 300+ total severe reports by morning easily.