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Late January - Early February Pattern Discussion


Bob Chill

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Remember this?

http://www.cpc.ncep.noaa.gov/products/precip/CWlink/daily_ao_index/history/hgt.ao.1990.gif

 

The PV that winter split around this time then too and the AO continued to decline. Same thing happened in other +QBO winters with similar forcings. Winter is far from over you pansies. :)

 

Mid-Feb should see all major teleconnections come in negative, even the NAO which should begin its decline after the relaxation period. 7 major waves will exist next week from China to here, which is high-frequency for winter. This is again looking like December.

 

Matt's specific window for a storm is embedded within a time period that most of the analogs suggest gets interesting. Some had several small events, ending with a big show (mid Feb 62' to early March nor'easter), while others came close to something noteworthy (like 91' but it had a pattern that could have produced something better).

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Remember this?

http://www.cpc.ncep.noaa.gov/products/precip/CWlink/daily_ao_index/history/hgt.ao.1990.gif

 

The PV that winter split around this time then too and the AO continued to decline. Same thing happened in other +QBO winters with similar forcings. Winter is far from over you pansies. :)

 

Mid-Feb should see all major teleconnections come in negative, even the NAO which should begin its decline after the relaxation period. 7 major waves will exist next week from China to here, which is high-frequency for winter. This is again looking like December.

 

Matt's specific window for a storm is embedded within a time period that most of the analogs suggest gets interesting. Some had several small events, ending with a big show (mid Feb 62' to early March nor'easter), while others came close to something noteworthy (like 91' but it had a pattern that could have produced something better).

Pansies has always been a great word...lol..

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JMA is looking pretty wintry later in the run and  usually the model runs warm. Has a system Feb 2 that would be snow. Then at hour 192..has a 994 low in NE Texas but plenty of HP to our north which would imply maybe a thump of snow at the start

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JMA is looking pretty wintry later in the run and  usually the model runs warm. Has a system Feb 2 that would be snow. Then at hour 192..has a 994 low in NE Texas but plenty of HP to our north which would imply maybe a thump of snow at the start

forgot about mid week on the JMA

http://grib2.com/jma/CONUS_JMA_1000-500_SLPTHKPRP_48HR.gif

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