Explanation of Acronym
used in
7-DAY Forestry Weather & Smoke Management Forecast
from
Georgia Forestry Commission

Sky Condition CL: Mostly Clear
PC: Partly Cloud
OV: Mostly Cloudy
Precipitation Type Z: freezing rain/drizzle, ice pellets, or anything mixed with freezing precipitation
S: pure snow or snow grains
RS: rain/drizzle and snow mixed
R: pure rain/drizzle
Atmospheric tendency to promote fire behavior Er: Erratic
In: Intense
No: Normal
Su: Subdued
Smoke Dispersion Index and Adjective >100: Very Good (VG)
61-100: Good (G)
41-60: Generally Good (GG)
21-40: Fair (F)
13-20: Generally Poor (GP)
7-12: Poor (P)
1-6: Very Poor (VP)
Low Visibility Occurrence Risk Index (LVORI) and Adjective 7-10: High (H)
4-6: Medium (M)
1-3: Low (L)