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Topics of Interest

Mid-Atlantic

Spot contest - MINS

9 Dec 2013
Minimum Temperatures - Wed December 11th and THU December 12th   DCA     Wednesday: Thursday:    BWI    Wednesda...
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The 12/14-15 Redemption storm

Yesterday, 02:02 PM
:weenie:
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December 2013 obs and discussion

28 Nov 2013
Close enough... probably best to keep longer range pattern stuff separate: http://www.americanwx.com/bb/index.php/topic/41745-december-pattern-disc...
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Blogs
Latest Blog Entries


A Winter Forecast based on the OPI index

7 Nov 2013 04:28 PM | Riccardo in Winter Analysis




In this paper, although we are still in autumn, is proposed the seasonal winter 2013/2014 forecast, based on the new numeric model obtained from the recent research about the correspondence between october and winter (DJF – December, January and Februa...


Typhoons, NAO, and Forecast Uncertainty

22 Oct 2013 02:09 PM | OKpowdah in General Analyses & Forecasts

Definitely has been fun to watch the influence of the Pacific on the pattern recently. All the tropical activity in the western Pacific has had really nice clear impacts downstream, translating to the very strong ridging along the west coast. The bigg...

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Typhoon Wipha

12 Oct 2013 10:17 AM | OKpowdah in General Analyses & Forecasts

We're watching another potential major Typhoon recurving in the West Pacific, passing close to Japan by day 4 (Tuesday night ET). The story begins though with just some simple extratropical cyclogenesis in the northern Sea of Japan and the amplificati...

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QBO in a two dimensional framework

12 Sep 2013 08:23 AM | OKpowdah in General Analyses & Forecasts

The Quasi-Biennial Oscillation (QBO) is a cycle of zonal wind in the equatorial stratosphere with a period that varies between 24 and 30 months. This oscillation is a product of downward propagating alternating wind regimes. The current method of monit...

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The PDO And Global Temperatures

30 Mar 2013 07:59 AM | bluewave in General Analyses & Forecasts

A new study just out addresses how the PDO can impact global temperatures on a decadal timescale. http://www.climatece...st-decade-15788 The natural variation in this case appears to be changes in wind patterns associated with the Pacific Decadal Osc...

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