Radar Palette Home Click Conventional Post Cold Frontal 1 Equatorward of DCB The DCB tends to sink isentropically as it typically curls anticyclonically toward the south Typically along the equatorward tip of the comma tail Winds typically veer with height above the cold frontal surface The cold frontal slope is more shallow than the average 1:50 Cold front is likely Katabatic Click for the Conceptual Model and Explanation

Radar Palette Home Click Conventional Post Cold Frontal 2 Cold Frontal Conceptual Models Katabatic Cold Front Cloud pattern A B

Radar Palette Home Click Conventional Post Cold Frontal 3 DCB Cold Frontal Cross-section along Poleward Branch of the Dry Conveyor Belt (DCB) Cold air in Cold Conveyor Belt (CCB) shallow and dry Warm Conveyor Belt (WCB) is shallow, warm and moist CCB veers with height (consistent with warm advection – weakening cold advection?) Mixing Zone Surface Cold Front Frontal slope is shallower than the typical 1:50 WCB oriented for less frontal lift Common area for shallow instability if any A B A B WCB just ahead of cold front also typically backs with height WCB CCB Veering winds above the frontal zone indicative of katabatic cold front

Radar Palette Home Click Conventional Cross Section of Inactive Cold Front The cold frontal cloud tends to be ahead of the inactive, katabatic cold front

Radar Palette Home Click Conventional Inactive or Katabatic Cold Front

Radar Palette Home Click Conventional Post Cold Frontal 6

Radar Palette Home Click Conventional Post Cold Frontal 7

Radar Palette Home Click Conventional Post Cold Frontal 8

Radar Palette Home Click Conventional Post Cold Frontal 9

Radar Palette Home Click Conventional Post Cold Frontal 10

Radar Palette Home Click Conventional Post Cold Frontal 11 Under DCB This is the portion of the DCB pointing directly at the col in the associated deformation zone. It is almost a straight line flow separating cyclonic curvature to the left (poleward) from anticyclonic curvature to the right (equatorward) There is typically a dry delta pattern just upstream from the col location The cold frontal slope is likely to be close to the average 1:50 Cold front is neither Katabatic or Anabatic Click for the Conceptual Model and Explanation

Radar Palette Home Click Conventional Post Cold Frontal 12 Cold Frontal Conceptual Models Cold Front neither Anabatic or Katabatic Cloud pattern A B

Radar Palette Home Click Conventional Post Cold Frontal 13 DCB Cold Frontal Cross-section along Poleward Branch of the Dry Conveyor Belt (DCB) Cold air in Cold Conveyor Belt (CCB) shallow and dry Warm Conveyor Belt (WCB) is shallow, warm and moist CCB veers with height (consistent with warm advection – weakening cold advection?) Mixing Zone Surface Cold Front Frontal slope is shallower than the typical 1:50 WCB oriented for less frontal lift Common area for deep instability A B A B WCB just ahead of cold front also typically backs with height WCB CCB Veering winds above the frontal zone indicative of katabatic cold front

Radar Palette Home Click Conventional Post Cold Frontal 14

Radar Palette Home Click Conventional Post Cold Frontal 15

Radar Palette Home Click Conventional Post Cold Frontal 16

Radar Palette Home Click Conventional Post Cold Frontal 17

Radar Palette Home Click Conventional Post Cold Frontal 18

Radar Palette Home Click Conventional Post Cold Frontal 19

Radar Palette Home Click Conventional Post Cold Frontal 20

Radar Palette Home Click Conventional Post Cold Frontal 21 Poleward DCB The DCB tends to rise isentropically turning cyclonically Typically in the dry slot of the comma pattern Winds typically back with height above the cold frontal surface The cold frontal slope is steeper than the average 1:50 Cold front is likely Anabatic Click for the Conceptual Model and Explanation

Radar Palette Home Click Conventional Post Cold Frontal 22 Cold Frontal Conceptual Models Anabatic Cold Front Cloud pattern A B

Radar Palette Home Click Conventional Post Cold Frontal 23 DCB Cold Frontal Cross-section along Poleward Branch of the Dry Conveyor Belt (DCB) Cold air in Cold Conveyor Belt (CCB) deep and moist Warm Conveyor Belt (WCB) is deep, warm and moist CCB backs with height consistent with cold advection Mixing Zone Surface Cold Front Frontal slope is steeper than the typical 1:50 WCB oriented for less frontal lift Common area for deep instability A B A B WCB just ahead of cold front also typically veers with height WCB CCB Backing winds above the frontal zone indicative of anabatic cold front

Radar Palette Home Click Conventional Cross Section of Active Cold Front The cold frontal cloud tends to be ahead of and behind the active, anabatic cold front

Radar Palette Home Click Conventional Active or Anabatic Cold front

Radar Palette Home Click Conventional Post Cold Frontal 26

Radar Palette Home Click Conventional Post Cold Frontal 27

Radar Palette Home Click Conventional Post Cold Frontal 28

Radar Palette Home Click Conventional Post Cold Frontal 29

Radar Palette Home Click Conventional Post Cold Frontal 30 Vertical Deformation Zone Distribution and the CBM Summary C C C C C DCB CCB DCB C

Radar Palette Home Click Conventional Post Cold Frontal 31 This must be and remain as Slide 31. The links to the three sections of the airflows that comprise each of the conveyor belts are located at Slide 1,11 and 21. Slide 11 is always the central, col limited circulation. This leaves 10 PowerPoint slides for the development of the training material which should be more than adequate.