FNUS76 KEKA 181800 FWSEKA SPOT FORECAST FOR OCFR 46...USFS NATIONAL WEATHER SERVICE EUREKA CA 1100 AM PDT THU MAR 18 2010 FORECAST IS BASED ON IGNITION TIME OF 1200 PDT ON MARCH 18. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE IN EUREKA AT (707) 443-6484. .DISCUSSION... STRONG HIGH PRESSURE ALOFT COMBINED WITH DIURNAL OFFSHORE FLOW WILL PRODUCE ABOVE NORMAL HIGH TEMPERATURES AND DRY WEATHER FOR THE NEXT SEVERAL DAYS. LOW AFTERNOON RELATIVE HUMIDITIES ARE EXPECTED...WITH POOR OVERNIGHT HUMIDITY RECOVERIES ON RIDGES. VALLEY AND SLOPE WINDS WILL REMAIN TERRAIN DRIVEN...WITH LOCALLY GUSTY RIDGE WINDS FAVORING A NORTH TO NORTHEAST DIRECTION. .TODAY... SKY/WEATHER.........SUNNY. MAX TEMPERATURE.....64 TO 69. MIN HUMIDITY........20 TO 25 PERCENT. WIND (EYE LEVEL)....NORTHEAST WINDS 6 TO 10 MPH. SURROUNDING RIDGE...NORTHEAST 10 TO 15 WITH GUSTS TO 20 MPH. MIXING HEIGHT.......INCREASING TO 2500-3000 FT AGL IN THE AFTERNOON. MIXING WINDS........EAST AROUND 20 MPH. .TONIGHT... SKY/WEATHER.........CLEAR. PATCHY FOG AFTER MIDNIGHT. MIN TEMPERATURE.....35 TO 40. MAX HUMIDITY........89 PERCENT. WIND (EYE LEVEL)....EAST WINDS 5 TO 6 MPH. SURROUNDING RIDGE...EAST WINDS 7 TO 9 MPH. MIXING HEIGHT.......DECREASING TO 300-800 FT AGL OVERNIGHT. MIXING WINDS........EAST AROUND 12 MPH. $$ FORECASTER...HENRY REQUESTED BY...ZACK TAYLOR TYPE OF REQUEST...PRESCRIBED .TAG 20100318.OCFR4.01/EKA