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This proposal suggests issuing a Preliminary TCV (TPV) just before or at the start of hotline calls to improve the visualization of hazard areas, reducing the need for corrections and addressing lingering zone issues affecting HLS and customers.
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Graphical Watch/Warning Coordination Proposal Shannon White
Background • Breakpoint-to-zone mapping is hard to visualize during hotline call • Due to this issue, occasionally the TCV does not match expectations and corrections are needed • This process leads to lingering zones and issues in the HLS and for customers • Issues can take days to appear (i.e. when warnings cancelled)
Proposal • Preliminary TCV (TPV) issued just before or at the beginning of the hotline call • Sent to WFOs in same way as RCL • WFOs use a new tool (ViewTPV) which allows forecasters to see proposed hazard area • Works similar to ViewWCL • Any changes needed are incorporated into TCV • Greatly reduces need for corrections