Which of the following is listed as a severe weather sign?

• A. Dark Clouds
• B. Lightning
• C. Heavy Rain
• D. Snow

Answer: (A)

Recognizing observable cues that warn of severe weather helps you take timely precautions. The clearest early indicator in these options is dark clouds. When you see dark, dense clouds building, especially towering cumulus or cumulonimbus, it signals the atmosphere is becoming unstable and a storm may form. This gives you advance warning before the storm brings hazardous conditions like strong winds, heavy rain, hail, or lightning, so you can prepare or move guests to safety.

Lightning is a dangerous phenomenon that occurs during storms, not a pre-storm sign used for warning. Heavy rain and snow indicate precipitation and weather conditions but are outcomes of the storm rather than proactive warning signs on their own. Hence, dark clouds are the best indicator among these options for a severe weather sign.