FNUS75 KCYS 060050 FWSCYS SPOT FORECAST FOR COOLEY DRAW...NIOBRARA COUNTY NATIONAL WEATHER SERVICE CHEYENNE WY 650 PM MDT SUN SEP 5 2010 FORECAST IS BASED ON REQUEST TIME OF 1838 MDT ON SEPTEMBER 05. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. ...RED FLAG WARNING IN EFFECT UNTIL 7 PM MDT THIS EVENING... .DISCUSSION... CRITICAL FIRE WEATHER CONDITIONS WILL CONTINUE ACROSS THE DISTRICT THROUGH THE EARLY EVENING HOURS AS SINGLE DIGIT HUMIDITY VALUES COMBINE WITH UNSEASONABLY WARM TEMPERATURES. WEST TO NORTHWEST WINDS WILL CONTINUE TO BE STRONG...WITH GUSTS TO 25 TO 35 MPH COMMON. SUCH DRY CONDITIONS WILL DELAY RECOVERY THIS EVENING...SO EXPECT THESE CRITICAL CONDITIONS TO PERSIST UNTIL 7 PM. A COLD FRONT WILL DROP FROM NORTH TO SOUTH THROUGH THE DISTRICT THIS EVENING THROUGH EARLY MONDAY MORNING...TURNING WINDS NORTHERLY AND DECREASING TEMPERATURES. IN FACT...TEMPERATURES WILL ONLY CLIMB INTO THE 60S IN LOWER ELEVATIONS ON MONDAY. EXPECT THE POSSIBILITY OF SOME ISOLATED DRY LIGHTNING IN THE EARLY EVENING NEAR THE VICINITY OF THE FRONT. MONDAY WILL YIELD SEASONABLY COOL AND BLUSTERY CONDITIONS WITH WIND GUSTS OF 30 TO 40 MPH...ESPECIALLY IN THE MORNING HOURS. THE DRY AIR MASS WILL RETURN TO THE DISTRICT LATE MONDAY THROUGH TUESDAY AS HIGH PRESSURE SETTLES IN. .TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY (65-75 PERCENT). ISOLATED SHOWERS AND THUNDERSTORMS IN THE EVENING...THEN SCATTERED RAIN SHOWERS AFTER MIDNIGHT. TEMPERATURE.........81 AT REQUEST...MIN 47. RH..................17 PERCENT AT REQUEST...MAX 71 PERCENT. WIND (20 FT)........WINDS WEST AT 10 TO 15 MPH AT REQUEST...BECOMING NORTHWEST WINDS 15 TO 21 MPH. GUSTS UP TO 30 MPH INCREASING TO 35 MPH AFTER MIDNIGHT. CWR.................20 PERCENT. LAL.................2 UNTIL 2400...THEN 1. HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH AT REQUEST...MAX 6. MIXING HEIGHT.......7000 FT AGL AT REQUEST...DECREASING TO 1900 FT AGL AFTER MIDNIGHT. TRANSPORT WINDS.....NORTHWEST 21 TO 29 MPH. SMOKE DISPERSAL.....EXCELLENT /126700 KNOT-FT/ AT REQUEST. MIN...EXCELLENT /126700 KNOT-FT/ DECREASING TO GOOD (42300-48000 KNOT-FT) AFTER MIDNIGHT. TIME (MDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM SKY (%).........64 64 64 76 76 76 WEATHER COV.....ISOLTD ISOLTD ISOLTD SCTTRD SCTTRD SCTTRD WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR TEMP............81 68 61 58 51 49 RH..............13 24 34 41 59 66 20 FT WIND......W 12 W 12 NW 14 NW 16 NW 16 NW 17 20 FT WIND GUST.25 25 30 35 35 35 HAINES INDEX....6 6 6 4 4 4 .LABOR DAY... SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT) THEN BECOMING PARTLY CLOUDY (45-55 PERCENT). SCATTERED RAIN SHOWERS IN THE MORNING. TEMPERATURE.........MAX 60. RH..................MIN 29 PERCENT. WIND (20 FT)........NORTHWEST WINDS 17 TO 21 MPH WITH GUSTS TO AROUND 35 MPH. CWR.................50 PERCENT DECREASING TO 10 PERCENT IN THE AFTERNOON. LAL.................1. HAINES INDEX........2 TO 3 OR OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......6000 FT AGL INCREASING TO 10200 FT AGL IN THE AFTERNOON. TRANSPORT WINDS.....NORTHWEST 23 TO 29 MPH. SMOKE DISPERSAL.....GOOD TO EXCELLENT (126900-151100 KNOT-FT) INCREASING TO EXCELLENT (203300-233800 KNOT-FT) IN THE AFTERNOON. TIME (MDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM SKY (%).........75 75 75 51 51 51 WEATHER COV.....SCTTRD SCTTRD SCTTRD WEATHER TYPE....RNSHWR RNSHWR RNSHWR NONE NONE NONE TEMP............47 50 55 58 60 60 RH..............71 62 50 41 32 29 20 FT WIND......NW 16 NW 16 NW 17 NW 15 NW 15 NW 15 20 FT WIND GUST.35 35 35 35 35 30 HAINES INDEX....2 2 2 3 3 3 $$ FORECASTER...LUNDQUIST REQUESTED BY...DIDIC TYPE OF REQUEST...WILDFIRE .TAG 20100905.COOLE.01/CYS