Read the paper today, says lowest air pressure ever recorded except for 2 cases... Looked at the barometer (rarely do that as it says nothing about the weather)
968 hPa... The scale ends at 960. It is a mechanical one, not been calibrated for a long time. Nice weather, no wind, sun is shining. The weather site has measured 961 yesterday it seems, and 954.4 in 1989, and 955.6 also in 1989.Maybe there is an air leak ;-)? And yes, I am a bit below sea level, but not much.
cases...
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Check out the window for a twister coming your way.
Sounds like he is in the eye of a hurricane.
And he hasn't replied since an hour. Oh boy ...
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On a sunny day (Sat, 24 Jan 2009 08:58:35 -0800) it happened Joerg wrote in :
I am still here, and it is now up to 975. No rain, no wind. No sun either, because it is night :-)
Or over the rainbow.
If your barometer is that low due to a tornado nearby, then chances are fairly high that you need to be in a storm cellar or other "tornado-safest" place some time between 1 second from now and 15 seconds ago.
Where is this location below sea level? Pressure at or below sea level that low in northern hemisphere widespread over so much as a major city and lasting more than maybe a minute (as opposed to a tornado) tends to be from hurricanes (awfully unlikely in the northern hemisphere in late January) or else from intense extratropical storms, which generally don't achieve that low a pressure as far south as Death Valley or New Orleans or the Dead Sea area. Elsewhere below sea level in northern hemisphere makes me think either Caspian Sea or Holland. And I wonder where is below sea level in the southern hemisphere, and where the tropical cyclone is if that is the reason now.
- Don Klipstein ( snipped-for-privacy@misty.com)
On a sunny day (Sun, 25 Jan 2009 05:35:28 +0000 (UTC)) it happened snipped-for-privacy@manx.misty.com (Don Klipstein) wrote in :
Netherlands, northern part ,about 4 meters below sealevel where I am (estimate).
Now it is still near perfect weather here, 2 days later. No rain fell, and no significant wind happened. Presure is now back to 989, and seems to be rising. There was a major storm 1200 km south of here though :-)
Yep, Amsterdam = Holland.
No idea.
Answered.
Or the barometer is broken. :-)
Cheers! Rich
(estimate).
My best guess is that the major storm had an elongated center or more likely still 2 centers. It is common for these storms to form a new surface low pressure center south of an aging one that has drifted to a location underneath the upper level low pressure center.
With these 2-center storms, most of the precipitation is usually associated more with the southern center. There is usually little wind in the centers or in between them. Barometric pressure is usually lowest in the northern center.
The two centers will normally drift towards each other and merge.
The strongest winds are often westerly ones south of the southern center. Strong winds are likely but do not necessarily occur a little north of the northern center, as well as well to the west and well to the east of the "central area".
I suspect the northern center was very close to you until it weakened.
My experience is that in the northern center when there are 2 centers several hundred km apart, it tends to be cloudy or mostly cloudy with light precipitation. I have sometimes seen clear skies just west or southwest of a major storm center. I have experienced clear skies and low barometer, but usually the wind picks up when the storm moves away because I am in a pressure gradient. I consider it possible for the storm to weaken first - but I usually get cloudy skies when a northern storm center retires over my head.
- Don Klipstein ( snipped-for-privacy@misty.com)
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