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cad [2017/04/12 21:49]
forsythsnow
cad [2017/04/19 13:51] (current)
sd
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 ====== Types of CAD ====== ====== Types of CAD ======
  
-There are two types of CAD:+There are three types of CAD:
  
-Classical, which is when a high pressure ​builds ​in the Northeast or Southern Canada as a storm moves through.+Classical-  
 +Classic cold air damming generally involves ​strong 1030+mb surface ​high pressure in the northeastern US funneling cold air southward east of the Appalachian mountainsThe surface high is locked into place by confluence over the northeast and the continued feed 
  
-In- Situ, which is where a high pressure ​moves out of the Mid-Atlantic or Northeast, then moves out to sea once storm system moves in. The cold air is still funneled in though ​the high is well off shore, or is lingering due to cloud cover. +In- Situ
-======  +During In-situ damming ​surface ​high pressure ​has deposited a cold dry air mass but the parent high has shifted ​out to sea and is no longer funneling ​continued feed of arctic air into the damming region. The air mass becomes locked into place as warmer ​air is forced up and over the cold dome and precipitation ​is generated.
-Effects ======+
  
 +Hybrid-
 +====== Effects ======
  
-CAD often is what results in ice storms throughout the CAD region. In addition, CAD also is a buffer to severe weather events when present, negating the threat down to a minimal level.+ 
 +CAD often is what results in ice storms throughout the CAD region. In addition, CAD also is a buffer to severe weather events when present,​negating the threat down to a minimal level. 
 + 
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