Pretty impressive...it set the record for lowest pressure in the continental interior (excluding hurricanes and noreasters) at 28.20" (or 954.0mB for those into metric). That is well into hurricane pressure, usually a category 2 or 3. Now this was very different from a hurricane as it was not fed by warm ocean waters but was a cold core storm. Winds won't typically build up quite as intense over land as water either.Still, it was impressive. Jeff Masters has a blog entry on the storm he posted earlier today. Check out his take on it.
Glad you all seemed to come through all right.
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way cool photo!
What a real impressive view that is...wow!
I heard this and was wondering why I didn't 'feel' it. A customer said she had a horrible migraine from the low pressure.
Very cool picture! I heard someone from the weather channel call it a "Land Hurricane." Record low pressure and record high winds in many areas. I'm glad it is moving out and my tall trees didn't wind up in my attic!
It just came to me... I wonder if there were more early births noted in the midwest. I've heard that low pressure can cause women to go into labor sooner than normal.
I have an altimeter on my desk that I took out of an airplane. I keep it set to 29.92. At that setting with a 59 degree F temp, the altimeter should read true altitude above ground sea level. That is in Racine at the airport with those setting the altimeter will read 670 feet (because that is the elevation at the airport). The elevation at my house is around 730 feet. The temperatures during the storm were in the upper 50s. At any rate, the air pressure was so low, the altimeter was reading around 2200 feet. So the air pressure had to be around 28.57. That's the kind of pressures you get in the center of hurricanes. No wonder it was so stinkin' windy.
To a weather geek it doesn't look like a hurricane...and I am not just talking about because it's over land. The center of circulation looks nothing like a hurricane eye and there is no evidence of the outflow associated with hurricanes.
Pictures tell you a lot if you know what to look for!
Oh, and neat experiment, Logjam. Those numbers look very plausible to me.
I heard that the friction of land obstacles helps keep the wind speed down, too. It was something. No one I know sustained any damage, but there was a lot of it. I saw over at the Journal Times that Case plans to be back in production on Monday. That's very good news.
You're right HB there is no eye in the center. And the other thing that was missing was convective air. Basically it was a one huge low pressure system sucking in a lot of air.
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