FNUS75 KCYS 182346
FWSCYS

SPOT FORECAST FOR COTTONWOOD FIRE...NEBRASKA EMA
NATIONAL WEATHER SERVICE CHEYENNE WY
546 PM MDT MON JUN 18 2012

FORECAST IS BASED ON REQUEST TIME OF 1732 MDT ON JUNE 18.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

...RED FLAG WARNING IN EFFECT UNTIL MIDNIGHT MDT TONIGHT...

.DISCUSSION...
CRITICAL FIRE WEATHER WILL CONTINUE OVER THE FIRE SITE THROUGH
LATE THIS EVENING. A WARM FRONT WILL LIFT BACK OVER THE FIRE
SITE THIS EVENING...WITH A COLD FRONT MOVING ACROSS THE AREA
LATER TONIGHT. THE FRONTAL MOVEMENTS WILL SWITCH THE WINDS TO
THE SOUTHWEST AND THEN TO THE NORTHWEST LATER TONIGHT.  WIND
SPEEDS WILL BE 5 TO 15 MPH...AND THEN INCREASE AFTER SUNRISE
ON TUESDAY.

OTHERWISE IT WILL BE A ANOTHER MILD NIGHT WITH FAIR RELATIVE
HUMIDITY RECOVERY.

WEST TO SOUTHWEST SURFACE WINDS WILL INCREASE BY MID MORNING
TUESDAY WITH GUSTS TO 25 MPH EXPECTED.  ALSO...TEMPERATURES WILL
BE VERY WARM...BUT SLIGHTLY COOLER THAN THOSE OF TODAY.  MINIMUM
RELATIVE HUMIDITY VALUES WILL BE AROUND 20 PERCENT TUESDAY.
10 AND 15 PERCENT.

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY (30-40 PERCENT).
MIN TEMPERATURE.....AROUND 58.
MAX HUMIDITY........55 PERCENT.
WIND (20 FT)........NORTHEAST WINDS 6 TO 10 MPH...SWITCHING TO THE
                    SOUTHWEST 8 TO 14 MPH BETWEEN 7 AND 8 PM. THEN
                    THE WINDS WILL TURN MORE NORTHWEST AFTER
                    MIDNIGHT.
CWR.................10 PERCENT.
LAL.................1.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......6600 FT AGL DECREASING TO 800 FT AGL AFTER
                    MIDNIGHT.
TRANSPORT WINDS.....WEST AROUND 12 MPH.
SMOKE DISPERSAL.....EXCELLENT BECOMING POOR AFTER MIDNIGHT.
                    (78000 TO 3800 KNOT-FT).

.TUESDAY...

SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT).
MAX TEMPERATURE.....AROUND 79.
MIN HUMIDITY........22 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 12 TO 16 MPH WITH GUSTS UP TO
                    25 MPH AFTER 9 AM.
CWR.................10 PERCENT.
LAL.................1.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......2500 FT AGL INCREASING TO 5500 FT AGL IN THE
                    AFTERNOON.
TRANSPORT WINDS.....NORTHWEST AROUND 20 MPH.
SMOKE DISPERSAL.....FAIR BECOMING EXCELLENT BY MIDDAY.
                    (41900-92700 KNOT-FT).

$$
FORECASTER...WEILAND
REQUESTED BY...DAVE REISEN
TYPE OF REQUEST...WILDFIRE
.TAG 20120618.COTTO.03/CYS