FNUS75 KBYZ 280208
FWSBYZ

SPOT FORECAST FOR SAND DRAW...SHERIDAN COUNTY
NATIONAL WEATHER SERVICE BILLINGS MT
808 PM MDT SAT AUG 27 2011

FORECAST IS BASED ON REQUEST TIME OF 1745 MDT ON AUGUST 27.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...

UPDATE...A WEAK ISOLATED THUNDERSTORM HAS DEVELOPED NEAR THE
WYOMING AND MONTANA STATELINE NORTH OF SHERIDAN AND IS MOVING
EAST SOUTHEAST AT 25 MPH. THIS MAY APPROACH THE FIRE SITE AROUND
9 PM. EXPECT ERRATIC GUST TO AROUND 30 MPH IF STORM HOLDS
TOGETHER. THERE IS A CHANCE IT WILL WEAKEN AS IT MOVES EAST AND
NOT AMOUNT TO MORE THAN A FEW SPRINKLES AND LIGHT WINDS UNDER 25
MPH.

RISK OF THUNDERSTORMS REMAINS LOW TONIGHT AS TRAJECTORY OF
CURRENT STORMS IN NORTHCENTRAL WYOMING IS TURNING EAST AND
SOUTHEAST. SKIES WILL BE PARTLY CLOUDY WITH GENERALLY LIMITED RH
RECOVERIES IN THE 55 TO 60 PERCENT RANGE. THERE WILL BE A LITTLE
BETTER CHANCE OF THUNDERSTORMS SUNDAY AFTERNOON AND EVENING FROM
ABOUT 3 PM TO 9 PM.

EXPECT YOUR WINDS WILL BE LIGHT AND NORTHERLY TONIGHT AND CONTINUE THIS
WAY INTO SUNDAY. RIDGETOP WINDS WILL BE NORTHWESTERLY SUNDAY AT 5 TO 15
MPH.


.REST OF TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY. ISOLATED SHOWERS AND
                    THUNDERSTORMS IN THE EVENING.
CWR.................10 PERCENT.
LAL.................2...1 TO 8 STRIKES/15 MIN/CELL.
MIN TEMPERATURE.....62-67.
MAX HUMIDITY........56-61 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......NORTHERLY AND LIGHT OVERNIGHT.  GUSTS TO 33 MPH NEAR STORMS.
 RIDGETOP...........WEST OT NORTHWEST 5 TO 15 MPH.

.SUNDAY...

SKY/WEATHER.........MOSTLY SUNNY. ISOLATED AFTERNOON AND EVENING
                    THUNDERSTORMS. GUSTY WINDS WITH STORMS.
CWR.................15 PERCENT.
LAL.................2...1 TO 8 STRIKES/15 MIN/CELL.
MAX TEMPERATURE.....90-95.
MIN HUMIDITY........18-23 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......NORTH WINDS 5 TO 10 MPH. GUSTY AND ERRATIC
                    WINDS EXPECTED NEAR THUNDERSTORMS.
 RIDGETOP...........NORTHWEST 10 TO 20 MPH.

$$
FORECASTER...TESAR
REQUESTED BY...BILL BIASTOCH
TYPE OF REQUEST...WILDFIRE
.TAG 20110827.SANDD.01/BYZ