Garmin Flight Deck 100 Marine Instruments User Manual


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190-00728-04 Rev. A
Embraer Prodigy
®
Flight Deck 100 Pilot’s Guide
365
HAZARD AVOIDANCE
Alongsqualllines(multiplecellsorclustersofcellsinaline)individualcellsmaybeindifferentstages
ofdevelopment.Areasbetweencloselyspaced,intensetargetsmaycontaindevelopingcloudsnothaving
enough moisture to produce a return. However, these areas could have strong updrafts or downdrafts.
Targetsshowingwideareasofgreenaregenerallyprecipitationwithoutsevereturbulence.
Irregularitiesinthetargetreturnmayalsoindicateturbulence,appearingashooks,ngers,orscalloped
edges.Theseirregularitiesmaybepresentingreenareaswithnoyellow,red,ormagentaareasandshould
betreatedashighlydangerousareas.Avoidtheseareasasiftheyareredormagenta.
Figure 6-56 Cell Irregularities
Steep Gradient
Squall Line
Hook or Finger
Scalloped Edge
Thunderstormdevelopmentisrapid.Acoursemaybecomeblockedwithinashorttime.Whendisplaying
shorterranges,periodicallyselectalongerrangetoseeifproblemsaredevelopingfurtherout.Thatcan
help prevent getting trapped in a blind alley or an area that is closed at one end by convective weather.
Figure 6-57 The Blind Alley - Horizontal Scan
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