The document discusses different types of precipitation including snow, sleet, glaze, mist, drizzle, rain, hail, and graupel. It explains that precipitation can occur year-round in mid-latitudes if clouds are cold enough to generate ice crystals and that precipitation forms when cloud droplets grow in volume by millions of times through collision and coalescence. The document also provides size ranges for different precipitation types.

7. NAMED AFTER ITS
SWEDISH DISCOVERER
TOR BERGERON
IT CAN PRODUCE PRECIPITATION
THROUGHOUT THE YEAR IN THE
MIDDLE LATITUDES, PROVIDED AT
LEAST THE UPPER PORTIONS OF
CLOUDS ARE COLD ENOUGH TO
GENERATE ICE CRYSTALS.

8. EXHIBITS TWO PHENOMENA

9. WATER IS IN THE LIQUID
STATE BELOW 00C .
IT WILL READILY FREEZE IF
IT IMPACTS AN OBJECT.

13. IT OCCURS IN THE TROPICS;
WHEREIN LARGER DROPS OF
WATER WITH FAST FALL
VELOCITIES GROW BY
COLLISION AND COALESCENCE.

16. FOR PRECIPITATION TO
FORM, CLOUD DROPLETS
MUST GROW IN
VOLUME BY ROUGHLY
ON MILLION TIMES.

26. SNOW, SLEET, GLAZE

41. MIST 0.005-0.05 MM
DRIZZLE LESS THAN 0.5 MM
RAIN 0.5-5 MM
SNOW 5 MM-10 CM
SLEET 0.5-5 MM
GLAZE LAYERS 1 MM-2CM THICK
HAIL 2-5 MM
GRAUPEL ------
RIME ------