ETA AGRICULTURAL/LAWN & GARDEN WEATHER FORECAST GUIDANCE FOR Chicago-O'Hare, IL UKAWC/NWS KORD NAM MOS GUIDANCE 12/09/2008 1200 UTC AFTERNOON TONIGHT TOMORROW TOMORROW NIGHT THIRD DAY TOTAL EDT 2p.m.-8p.m. 8p.m.-8a.m. 8a.m.-8p.m. 8p.m.-8a.m. 8a.m.-8p.m. (18Z-00Z) (00Z-12Z) (12Z-00Z) (00Z-12Z) (12Z-00Z) (ALL HRS) RAIN(QPF) 0.01-0.09 in. 0.00-0.01 in. 0.00-0.01 in. 0.00-0.01 in. 0.00-0.01 in. POP(AREA) 90 40 10 10 10 HI/LO TEMP(F) 34 21 32 20 30 MIN/MAX DEWPOINT(F) 30- 33 18- 28 18- 22 18- 22 18- 20 MIN/MAX RH (%) 90- 95 80- 90 65- 80 80- 90 70- 80 WIND DIRECTION N - N SE - N N - W E - W W - W WDIR BEGIN/END N / N SE / N W / E E / W W / W AVG WIND SPEED (MPH) 16 14 8 5 12 WIND SPEED (MPH) 12- 17 10- 16 6- 10 3- 8 9- 14 CLOUD COVER CLEAR 0 0 0 0 0 0 SCATTERED 0 2 1 1 6 10 BROKEN 0 3 6 6 6 21 OVERCAST 7 7 5 5 0 24 AT 2:00 p.m./a.m. OV OV BK SC SC SPRAYING CONDITIONS UNFAVORABLE 6 9 0 0 8 23 MARGINAL 1 3 10 3 4 21 FAVORABLE 0 0 2 9 0 11 LEAF WETNESS 0 0 0 4 0 4 (>=85% RH, < 5 mph Wind Speed, < OV Cloud Cover, Non-Precip Hrs) SEASONAL AG WEATHER PARAMETERS EMERGENCY LSI 0 0 0 0 0 0 DANGER LSI 0 0 0 0 0 0 TOBACCO BULKING/HANDLING -FAVORABLE 7 2 0 5 0 14 -MARGINAL 0 10 5 7 8 30 -UNFAVORABLE 0 0 7 0 4 11 CHILL HRS (<= 41 F) 7 12 12 12 12 55 HEAT INDEX > 100 F 0 0 0 0 0 0 HEAT INDEX > 90 F 0 0 0 0 0 0 FREEZING TEMPERATURES TEMPS <= 32 F 2 12 12 12 12 50 TEMPS <= 20 F 0 0 0 0 0 0 TEMPS <= 0 F 0 0 0 0 0 0 WIND CHILL <= 32 F 7 0 6 1 0 14 WIND CHILL <= 20 F 0 12 6 11 12 41 WIND CHILL <= 0 F 0 0 0 0 0 0 PROB OF SNOW (%) 0 0 0 0 0 0 AMOUNT OF SNOW 0.00-0.01 in. 0.00-0.01 in. 0.00-0.01 in. 0.00-0.01 in. 0.00-0.01 in.