A strong cold front now passing through eastern Iowa has prompted, yes, a tornado watch until 6:00pm for portion of southeast Iowa. You can see in the graphic to the left the area under this tornado watch. I would not expect this watch to remain in effect for Iowa through 6:00pm, but it’s something that needs to be closely monitored for the next 2-4 hours. Overall, the greater threat of tornadoes will exist south and east of Iowa later this afternoon.
Dynamics are in place for tornadoes to develop quickly as this frontal system passes through. Strong winds and large hail are also possible in areas under this Tornado Watch. Of course a tornado watch in late November is unusual, but is warranted considering the speed and potential severity of these storms. Again, I do not expect the threat to really last all afternoon for eastern Iowa, but something to monitor over the next few hours.