dryline
Humidity gradient line
A dryline is a boundary between dry and moist air masses, typically found in the American Great Plains where dry continental air from the west meets humid air from the Gulf of Mexico.
Unlike cold fronts, drylines separate air masses of similar temperature but different humidity.
They often trigger severe thunderstorms and tornadoes in spring and summer: Storm chasers positioned themselves along the dryline, waiting for cells to develop.
Violent rotating windstorm
- supercellRotating severe thunderstorm
- thunderstormViolent weather with lightning
- hailIcy precipitation pellets
- squallBrief, violent windstorm
instability · lifting · mesoscale · convection · cumulonimbus · updraft · downdraft · outflow
Condensation onset temperature
- convergenceProcess of approaching sameness
- gradientRate of change across space
- demarcationFormal boundary setting
- transitionChange from one state
interface · discontinuity · airmass · moisture · separation · barrier · confluence · collision
Prolonged water scarcity
- desertificationLand becoming barren, infertile
- aridityAbsence of moisture
- evaporationLiquid turning to gas
- parchedExtremely dry or thirsty
dust · heatwave · desiccation · barren · cracked · dusty · waterless · wilted
tornado
Violent rotating windstorm
- supercellRotating severe thunderstorm
- thunderstormViolent weather with lightning
- hailIcy precipitation pellets
squall · instability · lifting · mesoscale · convection · cumulonimbus · updraft · downdraft · outflow · mesocyclone
dewpoint
Condensation onset temperature
- convergenceProcess of approaching sameness
- gradientRate of change across space
- demarcationFormal boundary setting
transition · interface · discontinuity · airmass · moisture · separation · barrier · confluence · collision · synoptic
drought
Prolonged water scarcity
- desertificationLand becoming barren, infertile
- aridityAbsence of moisture
- evaporationLiquid turning to gas
parched · dust · heatwave · desiccation · barren · cracked · dusty · waterless · wilted · sere