| Main Entry: | cold front |
| Part of Speech: | noun |
| Definition: | advancing front of colder air |
Synonyms: |
cold sector, cold snap, cold spell, cold wave, polar front, snap, squall line |
| Main Entry: | line squall |
| Part of Speech: | noun |
| Definition: | an advancing thunderstorm or squall |
Synonyms: |
squall, squall line, storm, tempest, tropical storm, wind-shift line |