warm front
Heating air mass
A warm front is the boundary where a mass of warm air advances and rises over cooler air ahead of it.
Warm fronts typically bring gradual cloud thickening followed by steady precipitation, then milder temperatures as the front passes.
They move more slowly than cold fronts and produce less dramatic weather changes.
A warm front is expected to bring rain overnight.
Moving in forward direction
- air massAtmospheric volume, consistent temperature
- boundaryLine marking a limit
- barometerInstrument gauging atmospheric pressure
- isobarsEqual-pressure contour lines
cyclonic · anticyclone · convergence · overrunning · troposphere · southerlies · low pressure · synoptic
Very light precipitation
- rainWater dropping from clouds
- showersLight, passing rainfalls
- mizzleVery fine rain
- steady rainContinuous precipitation, moderate pace
Low, flat cloud layer
- nimbostratusThick gray rain-bearing cloud
- cirrusHigh wispy ice formation
- cirrostratusHigh thin ice sheet
- altostratusMid-level sheet cloud
overcast · cloudiness · cloud deck · fog · low ceiling · gray skies · cloud cover · thickening
Moderate in intensity
- temperature riseIncrease in heat level
- clearingTreeless space in forest
- wind shiftChange in airflow direction
- gradual changeSlow, steady transformation
muggy · balmy · thaw · moderating · seasonal change · outlook
advancing
Moving in forward direction
- air massAtmospheric volume, consistent temperature
- boundaryLine marking a limit
- barometerInstrument gauging atmospheric pressure
isobars · cyclonic · anticyclone · convergence · overrunning · troposphere · southerlies · low pressure · synoptic
drizzle
Very light precipitation
steady rain · light rain · rainfall · fog · mist · damp · humid · wetness
stratus
Low, flat cloud layer
- nimbostratusThick gray rain-bearing cloud
- cirrusHigh wispy ice formation
- cirrostratusHigh thin ice sheet
altostratus · overcast · cloudiness · cloud deck · fog · low ceiling · gray skies · cloud cover · thickening · lowering
mild
Moderate in intensity
- temperature riseIncrease in heat level
- clearingTreeless space in forest
- wind shiftChange in airflow direction
gradual change · muggy · balmy · thaw · moderating · seasonal change · outlook
- weather termssunny, rainy, cloudy, stormy, snowy
- frontsstorefront, waterfront, beachfront, lakefront, oceanfront
- weather frontsoutflow boundary, squall line, ITCZ
- weather mapsweather map, climate map, temperature map, precipitation map, wind map
- atmosphereair, humidity, atmosphere, temperature, oxygen
- weatherweather, rain, sun, snow, wind
warm frontcold front
Incoming cooler air mass
arctic front · cold snap · cold air mass · cold wave · polar vortex
warm frontcold front
Incoming cooler air mass
cold snap · arctic blast · cold spell · temperature drop · cooling trend
front, warm, warmth, warmly, warming, warmer, warmed, fronts, forefront