10:55pm – Storms in eastern Iowa drifting southeast right now. Widespread severe weather is not anticipated for tonight. Should these storms stay together, they will affect Carroll, Whiteside, Jo Daviess, Stephenson, and Lee Counties after midnight. As they move into the I-80/I-88 corridor they will be moving away from the boundary they formed on and should weaken further.

9:15pm – A few showers are just beginning to develop across northeast Iowa. However the atmosphere is not nearly as unstable as it was a few hours ago. Should these grow roots in the unstable airmass and sustain themselves for 30 minutes/1 hour, they may last into the night. Right now it’s questionable (without any sunlight) whether they can propagate into a cluster over the Mississippi River and move southeast. Will continue to monitor. Latest coming up on 10@10.

6:30pm – Increasing severe weather threat for the late-evening and overnight. A Severe Thunderstorm Watch may be issued for parts of eastern Iowa and areas west of I-39 in Illinois this evening. There may be just enough turning with height out in Iowa to support an isolated tornado or two. I believe the threat will move toward the Quad Cities and west-central Illinois as the night progresses.
5:15pm – DEVELOPING STORY: At 12:35pm, during a severe thunderstorm, a person was trapped inside a pole barn when it collapsed near Winslow (Stephenson Co). It happened at State Line Road and Swiss Road. As of 4pm the person was rescued and treated for several fractures. Stay with 13News as we continue to fallow this developing story.

  • Machesney Park reports TSTM WND DMG at 01:08 PM shingles blown off roof. small peach tree snapped off one foot above the ground
  • Galena reports TSTM WND DMG at 12:00 PM winds estimated to be 60 mph blew down a 3 to 4 inch diameter branch. time estimated

[live chat has ended]

(11:56:43 AM)
iembot: Storm Prediction Center issues SEVERE TSTM watch till 7pm (Watch Quickview)

(11:55:22 AM)
iembot: DVN issues Severe Thunderstorm Warning for Dubuque, Jackson [IA] and Carroll, Jo Daviess, Stephenson [IL] till 1:00 PM CDT

Update – 11:40 am:
(11:36:08 AM) iembot: DVN extends area+time of Severe Thunderstorm Watch for Jackson [IA] and Carroll, Jo Daviess, Stephenson [IL] till 1:00 PM CDT

Update – 10:35 am: While it doesn’t include our viewing area, another technical discussion was issued. Click here to read it. It mentions the possibility of an additional weather watch being issued.

Original post: A complex of thunderstorms is barreling southeastward through northeastern Iowa and into southwestern Wisconsin. These storms have been producing winds in excess of 50 mph.

Some weakening has been taking place, although the line of storms is expected to reintensify during the first part of the afternoon near our area. The reason for this is that we’ve been experiencing lots of sunshine all morning, and with dewpoints back into the lower 70s, the atmosphere is becoming increasingly unstable.

We’ll be monitoring the progression of this line of thunderstorms through the rest of the morning. I wouldn’t be surprised if the Storm Prediction Center issues a technical discussion that includes our viewing area within the next hour or so.


Posted under Uncategorized

This post was written by qni_it on July 31, 2008

6 Comments so far

  1. Carrie August 1, 2008 1:13 AM

    The latest Severe Weather Update as of 6:30pm does not sound good..When do you think the storms will fire up this evening and what areas do you think might be losing the most sleep tonight?

  2. Eric Sorensen August 1, 2008 1:16 AM

    Nothing has fired at all. There are a few very light returns (as of 8:13pm) just north of Waterloo. They’re having a hard time sustaining themselves. No watch will be issued until storms fire…which right now doesn’t appear too likely in the next 45 minutes at least. -ERIC

  3. WI Weather Buff August 1, 2008 2:24 AM

    Question about NWS reporting:

    Why does NWS rely on reports of power lines down relayed by trained spotters, law enforcement, the public, etc.?

    Couldn’t it get more accurate and complete info by getting this info directly from the power utilities?

    What’s the first thing somebody does when there are power lines down? Call the utility company!

    I would think if there were automatic reporting of such incidents from the power utilities to NWS that NWS could gather much more accurate info about the exact extent and location (and time) of power line damage.

    Inquiring minds want to know.

  4. tony August 1, 2008 2:48 AM

    I know about 1:15 today when the wind was blowing through here I was outside our walmart and a cart took only about 5 seconds to blow from the door I was at, halfway across the lot and hit a truck. I had no chance to catch it. It was weird.

  5. Eric Sorensen August 1, 2008 2:50 AM

    sorry for the guy that owned the truck!

  6. tony August 1, 2008 3:36 AM

    Yeah I know, I don’t think there was any damage to the truck. It was one of those I want to say dodge trucks and it looks liek the kind that a cart could not harm. I would have been in chat if it hadn’t been for work. And the cart hit the front of the truck in the bumper area.

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