Update - 10:43 p.m.: Severe weather threat continues to look like more of a wind threat than anything else. Heavy rain with localized flash flooding is also something to watch out for.
The line of thunderstorms has pushed out what we call an outflow boundary, which is cooler winds from high aloft in the thunderstorm that have reached the ground and push out ahead of the line. This has caused a general weakening of the thunderstorms in northeastern Iowa and southwestern Wisconsin. However, a few cells within the line of storms have been gotten stronger, then weakened. I would expect this to continue. These stronger cells would have the greater chance of producing gusty winds and the heaviest downpours. Remember that a Tornado Watch is in effect until 3 a.m. While the risk is low, some storms may try to rotate. I don't see that as being a big concern, however.
I'm heading home, but the severe weather map in the corner of the screen on WREX will remain on all night to display any changes in the watches or warnings.
If heavy rainfall and flash flooding do occur, please remember - turn around, don't drown. Never cross a flooded roadway. We've all seen photos and video of people who have tried to do so and did not make it across safely.
Again, the primary severe weather threat tonight is gusty winds and heavy rainfall. Secondary threat is a slight chance of a tornado in the region.
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(7:38:52 PM) iembot: Storm Prediction Center issues TORNADO watch till 08:00 UTC , new watch replaces WW 478, WW 479 (Watch Quickview)
Primary concerns tonight are for strong winds and heavy rainfall, with tornadoes a secondary threat. As the low-level jet stream increases through the night, wind shear will increase once again, which is why a new Tornado Watch was issued.
Live chat will not be restarted tonight since I'll likely be staying here very, very late.
Storm threat Sunday looks similar to Saturday's, unfortunately... ingredients will again be in place for strong thunderstorms in the afternoon/evening.
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