cloud precipitation structure associated area rainfall significantly elongated rainbands convective generated differences temperature noted weather radar imagery precipitation referred banded structure rainbands tropical cyclones curved orientation tropical cyclone rainbands contain showers thunderstorms eyewall eye constitute hurricane tropical storm extent rainbands tropical cyclone help determine cyclone intensity rainbands spawned near ahead cold fronts lines able produce tornadoes rainbands associated cold fronts mountain barriers perpendicular orientation formation low level barrier jet bands thunderstorms form sea breeze land breeze boundaries moisture present sea breeze rainbands active ahead cold mask location cold banding head precipitation pattern extratropical cyclone yield significant amounts rain snow extratropical cyclones rainbands form relative warm bodies water great lakes atmosphere cold rainbands yield heavy snow extratropical cyclones rainbands advance warm fronts warm fronts associated weak upward motion tend wide nature atmosphere rich low level moisture vertical wind shear narrow convective rainbands known lines generally cyclone warm sector ahead strong cold fronts associated extratropical cyclones wider rain bands occur cold fronts tend convective precipitation cold sector north northwest cyclone center colder cyclones small scale bands heavy snow occur cyclone head precipitation pattern width kilometres kilometres bands head associated areas zones strengthening temperature contrast southwest extratropical cyclones curved flow bringing cold air relatively warm lead narrow lake effect snow bands bring significant localized snowfall tropical cyclones rainbands exist periphery tropical cyclones point cyclone center low pressure rainbands tropical cyclones require ample moisture low level pool cooler air bands located kilometres kilometres cyclone center migrate outward capable producing heavy rains wind tornadoes particularly storm right quadrant rainbands closer center forming secondary outer eyewall intense hurricanes spiral rainbands basic structure tropical cyclone tropical cyclone basins use satellite based dvorak technique primary method determine tropical cyclone maximum sustained winds method extent spiral banding difference temperature eye eyewall assign maximum sustained wind central pressure central pressure values centers low pressure derived technique approximate different programs studying rainbands including forced geography convective rainbands form parallel terrain lee waves triggered hills upstream cloud formation normally kilometres kilometres apart bands precipitation near frontal zones approach steep topography low level barrier jet stream forms parallel prior mountain ridge frontal prior mountain barrier moisture present sea breeze land breeze fronts form convective rainbands sea breeze thunderstorm lines strong mask location approaching cold evening edge ocean currents lead development thunderstorm bands heat differential interface islands bands showers thunderstorms develop low level wind convergence island edges offshore california noted wake cold fronts
Rainband