FNUS73 KUNR 191618
FWSUNR

SPOT FORECAST FOR WESTBERRY TRAILS...IC
NATIONAL WEATHER SERVICE RAPID CITY SD
1018 AM MDT WED SEP 19 2012

FORECAST IS BASED ON REQUEST TIME OF 0954 MDT ON SEPTEMBER 19.
IF CONDITIONS BECOME UNREPRESENTATIVE CONTACT THE
NATIONAL WEATHER SERVICE OFFICE IN RAPID CITY.

...RED FLAG WARNING IN EFFECT TO 7 PM MDT THIS EVENING FOR LOW
   RELATIVE HUMIDITY AND GUSTY NORTHWEST WINDS...
...WIND ADVISORY IN EFFECT UNTIL 2 PM MDT THIS AFTERNOON...

.DISCUSSION...HIGH PRESSURE ACROSS THE REGION WILL CONTINUE TO
BRING DRY CONDITIONS TO THE AREA. BREEZY NORTHWEST WINDS WILL ALSO
CONTINUE...THOUGH WILL BE DECREASING GRADUALLY THROUGH THE
AFTERNOON. WINDS WILL BECOME LIGHT AND VARIABLE LATE THIS
EVENING...ALLOWING FOR TERRAIN INFLUENCED DRAINAGE WINDS TO
DEVELOP.

SLIGHTLY WARMER TEMPERATURES ARE EXPECTED THURSDAY WITH A
MINIMUM RELATIVE HUMIDITY OF 20 PERCENT OR LESS. WINDS WILL BE
FROM THE NORTHWEST UNDER 10 MPH IN THE MORNING...BUT ARE EXPECTED
TO INCREASE IN THE MID OR LATE AFTERNOON AS A WEAK SYSTEM QUICKLY
CROSSES THE AREA.

.TODAY...

SKY/WEATHER.........SUNNY.
MAX TEMPERATURE.....AROUND 72.
MIN HUMIDITY........19 PERCENT.
WIND (20 FT)........BREEZY. NORTH WINDS 15 TO 25 MPH WITH GUSTS TO
                    AROUND 30 MPH...GRADUALLY DECREASING THROUGH
                    THE MID TO LATE AFTERNOON.
CWR.................0 PERCENT.
LAL.................1.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......4500 TO 5500 FT AGL.
TRANSPORT WINDS.....NORTHWEST AROUND 30 MPH.
SMOKE DISPERSAL.....EXCELLENT.

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY.
MIN TEMPERATURE.....AROUND 48.
MAX HUMIDITY........46 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 5 TO 10 MPH IN THE
                    EVENING...BECOMING LIGHT/TERRAIN INFLUENCED
                    BY MIDNIGHT.
CWR.................0 PERCENT.
LAL.................1.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......200 TO 700 FT AGL.
TRANSPORT WINDS.....WEST AROUND 10 MPH.
SMOKE DISPERSAL.....POOR.

.THURSDAY...

SKY/WEATHER.........MOSTLY SUNNY.
MAX TEMPERATURE.....AROUND 75.
MIN HUMIDITY........21 PERCENT.
WIND (20 FT)........NORTH WINDS AROUND 5 MPH IN THE MORNING...
                    BECOMING 15 TO 25 WITH GUSTS TO 35 MPH IN
                    THE AFTERNOON.
CWR.................0 PERCENT.
LAL.................1.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......7600 TO 8600 FT AGL.
TRANSPORT WINDS.....NORTHWEST AROUND 21 MPH.
SMOKE DISPERSAL.....EXCELLENT.

$$
FORECASTER...CALDERON
REQUESTED BY...IC
TYPE OF REQUEST...WILDFIRE
.TAG 20120919.WESTB.01/UNR