402.2b - cloud types associated with frontal weather

With a dry warm front, expect ____ followed by ___ and finally _____ cloud.

cirrus, altocumulus, stratocumulus

With a dry warm front will come ____ visibility and ____ precipitation.

good, little

If the warm weather is dry and stable, expect ____, lowering to ______ with warm or cold frontal passage. Residual moisture left from the moister air mass may cause some ____ after the cold front passes.

cirrus, altocumulus and stratocumulus, cumulus

If the warm air is moist and stable, then expect _____ in the following order as the front approaches your station:

• Cirrus

• Cirrostratus (halo is a classic indicator of an approaching warm front)

• Altostratus

• Nimbostratus

A warm front that is moist and stable will be accompanied with ____ precipitation, with _____ and _____ forming within the precipitation.

continuous, stratus fractus, frontal fog

With a cold front and humid stable warm air, you will experience ____ visibility and ______ precipitation in the vicinity of the front.

poor, continuous or intermittent

With a cold front and humid stable warm air, you’ll see multiple layers of ______, ______, and continuous or intermittent precipitation in the vicinity of the cold front.

stratiform clouds, AC and SC

If the warm air mass is damp and unstable, the approach of a warm front will cause development of _______, developing into altocumulus along the frontal slope.

cirrus, cirrostratus and altostratus

In the retreating cold air of a humid, unstable warm air mass, the effects of the widespread and continuous showery precipitation with stratiform clouds, _______ developing in the lower étage, and also widespread _____.

• SF, ST and NS

• SC and AC

A warm front with humid and unstable air is one of the more dangerous weather conditions.

In this situation, you have warm, moist unstable air that is embedded in ________. In these cases, you will generally have ______ with occasional rain showers, hail, and thunderstorms.

• the stratus cloud (NS, AS)

• continuous light-heavy rain

What makes warm fronts with humid, unstable air so dangerous?

The inability to see the convective cloud

Cold fronts with humid and unstable warm air, as the narrower band of clouds associated with a cold front approaches, we see some _______ development, along with _____ forming in the precipitation.

SC and ACC, CB and SF

Humid and unstable warm air with a cold front is a very dangerous condition because the warm unstable air will produce _______ that could be increased depending on the ______.

convective activity, speed of the front

Fronts are generally associated with ____.

areas of low pressure