1. Violent Storms

2. THUNDERSTORMS FORM IN WARM,MOIST UNSTABLE AIR. CUMULONIMBUS CLOUDS. ATTAIN HEIGHTS OF 20 KM. TORRENTIAL RAIN,DAMAGING WINDS, LIGHTNING, THUNDER, HAIL & TORNADOES. OCCUR IN AFTERNOON- AIR UNSTABLE

3. THUNDERSTORMS OCCUR IN AFTERNOON- SURFACE WARMING CAUSES AIR TO BECOME UNSTABLE. CAN RESULT IN DESTRUCTIVE WEATHER INCLUDING TORNADOES.

4. LIGHTNING ALL THUNDERSTORMS PRODUCE LIGHTNING. DISCHARGE OF ELECTRICITY FROM THUNDERCLOUD TO GROUND, ANOTHER CLOUD OR WITHIN THE CLOUD ITSELF.

5. THUNDER Thunder is the sound caused by lightning. Depending on the distance and nature of the lightning, thunder can range from a sharp, loud crack to a long, low rumble.lightning The sudden increase in pressure and temperature from lightning produces rapidexpansion of the air surrounding and within a bolt of lightning.pressuretemperatureexpansion of the air

6. . In turn, this expansion of air creates a sonic shock wave, similar to a sonic boom, which produces the sound of thunder, often referred to as a clap, crack, or peal of thunder.sonic boom

8. TORNADOES VIOLENTLY ROTATING COLUMN OF AIR THAT TOUCHES THE GROUND. APPEARS AS VORTEX OR FUNEL SHAPED CLOUD OF FLYING DEBRIS MEASURED USING FUJITA SCALE.

9. HURRICANES LARGE ROTATING STORM OF TROPICAL ORIGIN THAT HAS SUSTAINED WINDS OF AT LEAST 119 KM PER HOUR. DEVELOP OVER WARM WATER, FUELED BY THE HEAT WATER RELEASES DURING CONDENSATION.