FNUS72 KRAH 151430
FWSRAH

SPOT FORECAST FOR JORDAN LAKE LONGLEAF BURN
NATIONAL WEATHER SERVICE RALEIGH, NC
925 AM EST FRI JAN 15 2010

FORECAST IS BASED ON IGNITION TIME OF 1100 EST ON JANUARY 14.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
COMPUTER BASED PROGRAM HAS FAILED. PLEASE CALL FOR DETAILS.

I BELIEVE THE MIXING HEIGHTS IN THE CURRENT FORECAST ARE TOO
HIGH. MAXIMUM MIXING HEIGHT NEAR 2300 FEET. TRANSPORT WINDS
ACCEPTABLE AT NORTHWEST AT NINE MPH. THIS WOULD OF COURSE
DROP THE VENT RATE FURTHER. EXPECT NIGHT TIME SURFACE INVERSION TO
BEGIN SETTING UP AROUND 5 PM. TEMPERATURES WARM RAPIDLY TO
55 TO 57 BY EARLY AFTERNOON THEN NEAR 60 FOR HIGH TEMPERATURE.
MINIMUM RELATIVE HUMIDITY NEAR 26 PERCENT.

LONG PERIODS OF CALM TONIGHT WITH VERY POOR DISPERSION.
LOW NEAR FREEZING. MAXIMUM RELATIVE HUMIDITY NEAR 80 PERCENT.

SATURDAY CONDITIONS AS IN CURRENT FWFRAH FORECAST FOR CHATHAM
COUNTY. CONTINUED LOW MIXING HEIGHTS AND WEAK WINDS.

$$

FORECASTER...RON HUMBLE
515-8203