807
FNUS55 KCYS 201022
FWFCYS
FIRE WEATHER PLANNING FORECAST FOR SOUTHEAST WYOMING/WESTERN NEBRASKA
NATIONAL WEATHER SERVICE CHEYENNE WY
322 AM MST THU FEB 20 2020
DISCUSSION
CHILLY TEMPERATURES AND A DUSTING OF SNOW HAS MINIMIZED THE FIRE
WEATHER THREAT FOR THE NEXT DAY. HOWEVER, TEMPERATURES RISE AND
HUMIDITIES DROP TO NEAR CRITICAL LEVELS FRIDAY AND SATURDAY AS A
RIDGE OF HIGH PRESSURE BUILDS BRIEFLY OVER THE REGION. WINDS
INCREASE FROM THE WEST BOTH MORNINGS AS PULSES PASS THROUGH THE
FLOW ALOFT, BUT THIS WILL BE MOST FELT IN THE WIND-PRONE AREAS OF
SOUTHEAST WYOMING. NEXT CHANCE FOR SNOW COMES SUNDAY.
WYZ301-202315-
NIOBRARA/LOWER ELEVATIONS OF CONVERSE/THUNDER BASIN NATIONAL
GRASSLAND-
322 AM MST THU FEB 20 2020
TODAY
SKY/WEATHER.........SUNNY.
MAX TEMPERATURE.....28-34.
24 HR TREND......11 DEGREES WARMER.
MIN HUMIDITY........40-46 PERCENT.
24 HR TREND......18 PERCENT DRIER.
20-FOOT WINDS.......SOUTHWEST AROUND 10 MPH WITH GUSTS TO AROUND 35
MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH.
MIXING HEIGHT.......400-1900 FT AGL.
SMOKE DISPERSAL.....POOR (6400-17200 KNOT-FT).
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
DOMINATED FIRE GROWTH.
TONIGHT
SKY/WEATHER.........CLEAR.
MIN TEMPERATURE.....9-15.
24 HR TREND......12 DEGREES WARMER.
MAX HUMIDITY........62-68 PERCENT.
24 HR TREND......20 PERCENT DRIER.
HUMIDITY RECOVERY...FAIR.
20-FOOT WINDS.......SOUTHWEST AROUND 10 MPH AND GUSTY.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST 15 TO 20 MPH.
MIXING HEIGHT.......200-800 FT AGL.
SMOKE DISPERSAL.....POOR (6800-8400 KNOT-FT).
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
DOMINATED FIRE GROWTH.
FRIDAY
SKY/WEATHER.........SUNNY.
MAX TEMPERATURE.....37-45.
24 HR TREND......10 DEGREES WARMER.
MIN HUMIDITY........35-41 PERCENT.
24 HR TREND......10 PERCENT DRIER.
20-FOOT WINDS.......WEST AROUND 10 MPH WITH HIGHER GUSTS.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST AROUND 20 MPH.
MIXING HEIGHT.......300-1800 FT AGL.
SMOKE DISPERSAL.....POOR (8700-23800 KNOT-FT).
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
DOMINATED FIRE GROWTH.
FORECAST DAYS 3 THROUGH 7
SATURDAY
CLEAR. LOWS IN THE LOWER 20S. HIGHS IN THE MID 40S.
WEST WINDS AROUND 10 MPH.
SUNDAY
MOSTLY CLOUDY. LOWS IN THE LOWER 20S. HIGHS IN THE
UPPER 30S. NORTHWEST WINDS AROUND 5 MPH.
MONDAY
MOSTLY CLOUDY. CHANCE OF FLURRIES. LOWS IN THE LOWER
20S. HIGHS IN THE MID 30S. WEST WINDS AROUND 10 MPH.
TUESDAY
COLDER. MOSTLY CLOUDY WITH CHANCE OF SNOW. LOWS AROUND
16. HIGHS IN THE MID 20S.
WEDNESDAY
MOSTLY CLOUDY. CHANCE OF FLURRIES. LOWS AROUND 8.
HIGHS IN THE MID 20S.
WYZ302-202315-
NORTH LARAMIE RANGE/MEDICINE BOW NF-
322 AM MST THU FEB 20 2020
TODAY
SKY/WEATHER.........SUNNY. PATCHY FOG UNTIL 0800.
MAX TEMPERATURE.....20-30.
24 HR TREND......UNCHANGED.
MIN HUMIDITY........37-43 PERCENT.
24 HR TREND......32 PERCENT DRIER.
20-FOOT WINDS.......SOUTHWEST 10 TO 15 MPH WITH HIGHER GUSTS.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST 15 TO 20 MPH.
MIXING HEIGHT.......400-1500 FT AGL.
SMOKE DISPERSAL.....POOR (6700-17300 KNOT-FT).
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
FIRE GROWTH.
TONIGHT
SKY/WEATHER.........CLEAR. PATCHY FOG AFTER 2300.
MIN TEMPERATURE.....7-17.
24 HR TREND......13 DEGREES WARMER.
MAX HUMIDITY........59-65 PERCENT.
24 HR TREND......35 PERCENT DRIER.
HUMIDITY RECOVERY...FAIR.
20-FOOT WINDS.......WEST AROUND 15 MPH. GUSTS UP TO 30 MPH
INCREASING TO 40 MPH AFTER MIDNIGHT.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST 25 TO 30 MPH.
MIXING HEIGHT.......400-1000 FT AGL.
SMOKE DISPERSAL.....POOR (13900-15000 KNOT-FT).
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
FIRE GROWTH.
FRIDAY
SKY/WEATHER.........SUNNY. PATCHY FOG UNTIL 0800.
MAX TEMPERATURE.....30-38.
24 HR TREND......12 DEGREES WARMER.
MIN HUMIDITY........35-41 PERCENT.
24 HR TREND......UNCHANGED.
20-FOOT WINDS.......WEST 15 TO 20 MPH WITH GUSTS TO AROUND 35 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST 25 TO 30 MPH.
MIXING HEIGHT.......400-1700 FT AGL.
SMOKE DISPERSAL.....POOR (14800-35700 KNOT-FT).
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
DOMINATED FIRE GROWTH.
FORECAST DAYS 3 THROUGH 7
SATURDAY
CLEAR. LOWS IN THE LOWER 20S. HIGHS IN THE UPPER 30S.
WEST WINDS AROUND 20 MPH.
SUNDAY
MOSTLY CLOUDY WITH SLIGHT CHANCE OF SNOW. LOWS IN THE
LOWER 20S. HIGHS IN THE LOWER 30S. NORTHWEST WINDS AROUND 5 MPH.
MONDAY
MOSTLY CLOUDY. CHANCE OF SNOW. LOWS AROUND 19. HIGHS
AROUND 30. WEST WINDS AROUND 15 MPH.
TUESDAY
COLDER. MOSTLY CLOUDY WITH CHANCE OF SNOW. LOWS AROUND
11. HIGHS AROUND 18.
WEDNESDAY
PARTLY CLOUDY WITH CHANCE OF FLURRIES. LOWS AROUND
4. HIGHS AROUND 20.
WYZ303-202315-
CENTRAL AND NORTHERN CARBON/FERRIS-SEMINOE-SHIRLEY MOUNTAINS-
322 AM MST THU FEB 20 2020
TODAY
SKY/WEATHER.........MOSTLY SUNNY. PATCHY FOG UNTIL 0800.
MAX TEMPERATURE.....16-22.
24 HR TREND......UNCHANGED.
MIN HUMIDITY........53-59 PERCENT.
24 HR TREND......1 PERCENT DRIER.
20-FOOT WINDS.......SOUTHWEST 5 TO 10 MPH AND GUSTY.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH.
MIXING HEIGHT.......400-1500 FT AGL.
SMOKE DISPERSAL.....POOR (5200-13000 KNOT-FT).
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
FIRE GROWTH.
TONIGHT
SKY/WEATHER.........CLEAR. PATCHY FOG AFTER 2300.
MIN TEMPERATURE.....ZERO TO 8 ABOVE ZERO.
24 HR TREND......10 DEGREES WARMER.
MAX HUMIDITY........75-81 PERCENT.
24 HR TREND......8 PERCENT DRIER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......SOUTHWEST AROUND 10 MPH. GUSTS UP TO 20 MPH
INCREASING TO 30 MPH AFTER MIDNIGHT.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH.
MIXING HEIGHT.......400-900 FT AGL.
SMOKE DISPERSAL.....POOR (7300-8600 KNOT-FT).
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
FIRE GROWTH.
FRIDAY
SKY/WEATHER.........SUNNY. PATCHY FOG UNTIL 0800.
MAX TEMPERATURE.....26-34.
24 HR TREND......14 DEGREES WARMER.
MIN HUMIDITY........50-56 PERCENT.
24 HR TREND......3 PERCENT DRIER.
20-FOOT WINDS.......SOUTHWEST AROUND 15 MPH WITH GUSTS TO AROUND 35
MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST 20 TO 25 MPH.
MIXING HEIGHT.......400-2000 FT AGL.
SMOKE DISPERSAL.....POOR (10900-32700 KNOT-FT).
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
FIRE GROWTH.
FORECAST DAYS 3 THROUGH 7
SATURDAY
MOSTLY CLEAR. LOWS AROUND 16. HIGHS IN THE MID 30S.
SOUTHWEST WINDS AROUND 15 MPH.
SUNDAY
MOSTLY CLOUDY WITH CHANCE OF FLURRIES. LOWS AROUND 20.
HIGHS IN THE LOWER 30S. NORTH WINDS AROUND 5 MPH.
MONDAY
MOSTLY CLOUDY. CHANCE OF FLURRIES. LOWS AROUND 16.
HIGHS IN THE UPPER 20S. WEST WINDS AROUND 15 MPH.
TUESDAY
COLDER. MOSTLY CLOUDY WITH CHANCE OF SNOW. LOWS AROUND
10. HIGHS AROUND 18.
WEDNESDAY
PARTLY CLOUDY. CHANCE OF FLURRIES. LOWS AROUND 3.
HIGHS AROUND 20.
WYZ304-202315-
SOUTHWEST CARBON COUNTY-
322 AM MST THU FEB 20 2020
TODAY
SKY/WEATHER.........MOSTLY SUNNY.
MAX TEMPERATURE.....15-23.
24 HR TREND......2 DEGREES COOLER.
MIN HUMIDITY........59-65 PERCENT.
24 HR TREND......14 PERCENT WETTER.
20-FOOT WINDS.......SOUTH AROUND 5 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTH 5 TO 10 MPH.
MIXING HEIGHT.......400-1500 FT AGL.
SMOKE DISPERSAL.....POOR (2300-9300 KNOT-FT).
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
FIRE GROWTH.
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR.
MIN TEMPERATURE.....2 BELOW TO 3 ABOVE ZERO.
24 HR TREND......11 DEGREES WARMER.
MAX HUMIDITY........82-88 PERCENT.
24 HR TREND......5 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......SOUTH AROUND 5 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTH AROUND 10 MPH.
MIXING HEIGHT.......400-900 FT AGL.
SMOKE DISPERSAL.....POOR (3900-4800 KNOT-FT).
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
FIRE GROWTH.
FRIDAY
SKY/WEATHER.........SUNNY.
MAX TEMPERATURE.....25-33.
24 HR TREND......10 DEGREES WARMER.
MIN HUMIDITY........57-63 PERCENT.
24 HR TREND......3 PERCENT WETTER.
20-FOOT WINDS.......SOUTH AROUND 10 MPH WITH HIGHER GUSTS.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTH AROUND 15 MPH.
MIXING HEIGHT.......400-1900 FT AGL.
SMOKE DISPERSAL.....POOR (6700-18600 KNOT-FT).
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
DOMINATED FIRE GROWTH.
FORECAST DAYS 3 THROUGH 7
SATURDAY
MOSTLY CLEAR. LOWS AROUND 11. HIGHS IN THE MID 30S.
SOUTH WINDS AROUND 5 MPH.
SUNDAY
CLOUDY WITH CHANCE OF FLURRIES. LOWS AROUND 20. HIGHS
IN THE MID 30S. NORTH WINDS AROUND 10 MPH.
MONDAY
MOSTLY CLOUDY. CHANCE OF FLURRIES. LOWS AROUND 14.
HIGHS AROUND 30. WEST WINDS AROUND 10 MPH.
TUESDAY
MOSTLY CLOUDY WITH CHANCE OF SNOW. LOWS AROUND 10.
HIGHS IN THE LOWER 20S.
WEDNESDAY
MOSTLY CLOUDY WITH CHANCE OF FLURRIES. LOWS AROUND
1. HIGHS IN THE LOWER 20S.
WYZ305-202315-
SIERRA MADRE RANGE/MEDICINE BOW NF-
322 AM MST THU FEB 20 2020
TODAY
SKY/WEATHER.........SUNNY.
MAX TEMPERATURE.....23-29.
24 HR TREND......8 DEGREES WARMER.
MIN HUMIDITY........37-43 PERCENT.
24 HR TREND......24 PERCENT DRIER.
20-FOOT WINDS.......SOUTH AROUND 5 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.
MIXING HEIGHT.......400-900 FT AGL INCREASING TO 1500-3200 FT AGL
IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR (2700-15500 KNOT-FT).
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
FIRE GROWTH.
TONIGHT
SKY/WEATHER.........CLEAR. PATCHY BLOWING SNOW AFTER 2300.
MIN TEMPERATURE.....5-11.
24 HR TREND......14 DEGREES WARMER.
MAX HUMIDITY........65-71 PERCENT.
24 HR TREND......10 PERCENT DRIER.
HUMIDITY RECOVERY...FAIR.
20-FOOT WINDS.......SOUTH 5 TO 10 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH.
MIXING HEIGHT.......400-1300 FT AGL.
SMOKE DISPERSAL.....POOR (7800-8900 KNOT-FT).
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
FIRE GROWTH.
FRIDAY
SKY/WEATHER.........SUNNY. PATCHY BLOWING SNOW UNTIL 0800.
MAX TEMPERATURE.....31-37.
24 HR TREND......7 DEGREES WARMER.
MIN HUMIDITY........41-47 PERCENT.
24 HR TREND......4 PERCENT WETTER.
20-FOOT WINDS.......SOUTHWEST AROUND 10 MPH WITH HIGHER GUSTS.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST 20 TO 25 MPH.
MIXING HEIGHT.......500-1000 FT AGL INCREASING TO 2000-3300 FT AGL
IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR TO FAIR (11500-53900 KNOT-FT).
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
DOMINATED FIRE GROWTH.
FORECAST DAYS 3 THROUGH 7
SATURDAY
MOSTLY CLEAR. CHANCE OF SNOW. LOWS AROUND 18. HIGHS
IN THE UPPER 30S. SOUTHWEST WINDS AROUND 5 MPH.
SUNDAY
CLOUDY WITH CHANCE OF FLURRIES. LOWS IN THE LOWER 20S.
HIGHS IN THE LOWER 30S. SOUTHWEST WINDS AROUND 5 MPH.
MONDAY
MOSTLY CLOUDY WITH SNOW LIKELY. LOWS AROUND 16. HIGHS
IN THE UPPER 20S. WEST WINDS AROUND 10 MPH.
TUESDAY
SNOW LIKELY. LOWS AROUND 9. HIGHS AROUND 19.
WEDNESDAY
MOSTLY CLOUDY. CHANCE OF FLURRIES. LOWS AROUND 2.
HIGHS IN THE LOWER 20S.
WYZ306-202315-
UPPER NORTH PLATTE RIVER BASIN-
322 AM MST THU FEB 20 2020
TODAY
SKY/WEATHER.........SUNNY. PATCHY FOG UNTIL 0800.
MAX TEMPERATURE.....24-29.
24 HR TREND......10 DEGREES WARMER.
MIN HUMIDITY........47-53 PERCENT.
24 HR TREND......14 PERCENT DRIER.
20-FOOT WINDS.......SOUTH AROUND 5 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTH AROUND 5 MPH.
MIXING HEIGHT.......700-2700 FT AGL.
SMOKE DISPERSAL.....POOR (5800-11200 KNOT-FT).
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
FIRE GROWTH.
TONIGHT
SKY/WEATHER.........CLEAR. PATCHY FOG AFTER 2300.
MIN TEMPERATURE.....4-10.
24 HR TREND......11 DEGREES WARMER.
MAX HUMIDITY........70-76 PERCENT.
24 HR TREND......15 PERCENT DRIER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......SOUTH AROUND 5 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTH AROUND 10 MPH.
MIXING HEIGHT.......700-1200 FT AGL.
SMOKE DISPERSAL.....POOR (5800-7800 KNOT-FT).
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
FIRE GROWTH.
FRIDAY
SKY/WEATHER.........SUNNY. PATCHY FOG UNTIL 0800.
MAX TEMPERATURE.....34-39.
24 HR TREND......10 DEGREES WARMER.
MIN HUMIDITY........42-48 PERCENT.
24 HR TREND......5 PERCENT DRIER.
20-FOOT WINDS.......SOUTHWEST AROUND 10 MPH WITH HIGHER GUSTS.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST 15 TO 20 MPH.
MIXING HEIGHT.......700-1200 FT AGL INCREASING TO 2800-3900 FT AGL
IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR TO FAIR (10600-59500 KNOT-FT).
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
DOMINATED FIRE GROWTH.
FORECAST DAYS 3 THROUGH 7
SATURDAY
MOSTLY CLEAR. LOWS AROUND 20. HIGHS AROUND 40.
SOUTHWEST WINDS AROUND 10 MPH.
SUNDAY
CLOUDY WITH CHANCE OF FLURRIES. LOWS IN THE LOWER 20S.
HIGHS IN THE LOWER 30S. SOUTHWEST WINDS AROUND 5 MPH.
MONDAY
MOSTLY CLOUDY WITH CHANCE OF FLURRIES. LOWS AROUND 18.
HIGHS IN THE UPPER 20S. WEST WINDS AROUND 10 MPH.
TUESDAY
CLOUDY WITH CHANCE OF SNOW. LOWS AROUND 11. HIGHS
AROUND 20.
WEDNESDAY
MOSTLY CLOUDY. CHANCE OF FLURRIES. LOWS AROUND 3.
HIGHS IN THE LOWER 20S.
WYZ307-202315-
SNOWY RANGE/MEDICINE BOW NF-
322 AM MST THU FEB 20 2020
TODAY
SKY/WEATHER.........SUNNY.
MAX TEMPERATURE.....24-29.
24 HR TREND......10 DEGREES WARMER.
MIN HUMIDITY........34-40 PERCENT.
24 HR TREND......15 PERCENT DRIER.
20-FOOT WINDS.......SOUTHWEST AROUND 5 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.
MIXING HEIGHT.......500-1200 FT AGL INCREASING TO 2200-3400 FT AGL
IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR (5100-22000 KNOT-FT).
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
FIRE GROWTH.
TONIGHT
SKY/WEATHER.........CLEAR. PATCHY BLOWING SNOW AFTER 2300.
MIN TEMPERATURE.....6-12.
24 HR TREND......16 DEGREES WARMER.
MAX HUMIDITY........62-68 PERCENT.
24 HR TREND......20 PERCENT DRIER.
HUMIDITY RECOVERY...FAIR.
20-FOOT WINDS.......SOUTHWEST AROUND 10 MPH. GUSTS UP TO 25 MPH
INCREASING TO 35 MPH AFTER MIDNIGHT.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST 15 TO 20 MPH.
MIXING HEIGHT.......500-1400 FT AGL.
SMOKE DISPERSAL.....POOR (12800-14300 KNOT-FT).
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
FIRE GROWTH.
FRIDAY
SKY/WEATHER.........SUNNY. PATCHY BLOWING SNOW UNTIL 0800.
MAX TEMPERATURE.....31-37.
24 HR TREND......10 DEGREES WARMER.
MIN HUMIDITY........32-38 PERCENT.
24 HR TREND......1 PERCENT DRIER.
20-FOOT WINDS.......SOUTHWEST AROUND 15 MPH WITH GUSTS TO AROUND 40
MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST AROUND 25 MPH.
MIXING HEIGHT.......500-1000 FT AGL INCREASING TO 2100-3400 FT AGL
IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR TO GOOD (14600-61500 KNOT-FT).
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
DOMINATED FIRE GROWTH.
FORECAST DAYS 3 THROUGH 7
SATURDAY
MOSTLY CLEAR. LOWS AROUND 19. HIGHS IN THE UPPER 30S.
SOUTHWEST WINDS AROUND 15 MPH.
SUNDAY
CLOUDY WITH CHANCE OF FLURRIES. LOWS AROUND 20. HIGHS
IN THE UPPER 20S. NORTH WINDS AROUND 5 MPH.
MONDAY
MOSTLY CLOUDY WITH SNOW LIKELY. LOWS AROUND 15. HIGHS
IN THE MID 20S. WEST WINDS AROUND 15 MPH.
TUESDAY
COLDER. MOSTLY CLOUDY WITH CHANCE OF SNOW. LOWS AROUND
6. HIGHS AROUND 15.
WEDNESDAY
MOSTLY CLOUDY WITH CHANCE OF FLURRIES. LOWS AROUND
1 BELOW. HIGHS AROUND 18.
WYZ308-202315-
LARAMIE VALLEY/SHIRLEY BASIN-
322 AM MST THU FEB 20 2020
TODAY
SKY/WEATHER.........SUNNY. PATCHY FOG UNTIL 0800.
MAX TEMPERATURE.....19-27.
24 HR TREND......4 DEGREES WARMER.
MIN HUMIDITY........45-51 PERCENT.
24 HR TREND......6 PERCENT DRIER.
20-FOOT WINDS.......SOUTHWEST AROUND 5 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH.
MIXING HEIGHT.......500-2200 FT AGL.
SMOKE DISPERSAL.....POOR (4700-12200 KNOT-FT).
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
FIRE GROWTH.
TONIGHT
SKY/WEATHER.........CLEAR. PATCHY FOG AFTER 2300.
MIN TEMPERATURE.....ZERO TO 8 ABOVE ZERO.
24 HR TREND......10 DEGREES WARMER.
MAX HUMIDITY........72-78 PERCENT.
24 HR TREND......11 PERCENT DRIER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......SOUTHWEST 5 TO 10 MPH. GUSTS UP TO 20 MPH AFTER
MIDNIGHT.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH.
MIXING HEIGHT.......400-900 FT AGL.
SMOKE DISPERSAL.....POOR (5700-7300 KNOT-FT).
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
FIRE GROWTH.
FRIDAY
SKY/WEATHER.........SUNNY. PATCHY FOG UNTIL 0800.
MAX TEMPERATURE.....31-39.
24 HR TREND......12 DEGREES WARMER.
MIN HUMIDITY........39-45 PERCENT.
24 HR TREND......2 PERCENT DRIER.
20-FOOT WINDS.......WEST 10 TO 15 MPH WITH GUSTS TO AROUND 35 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST AROUND 15 MPH INCREASING TO AROUND 25 MPH
IN THE AFTERNOON.
MIXING HEIGHT.......600-2600 FT AGL.
SMOKE DISPERSAL.....POOR TO FAIR (10100-42500 KNOT-FT).
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
FIRE GROWTH.
FORECAST DAYS 3 THROUGH 7
SATURDAY
CLEAR. LOWS AROUND 19. HIGHS AROUND 40. SOUTHWEST
WINDS AROUND 10 MPH.
SUNDAY
MOSTLY CLOUDY WITH CHANCE OF SNOW. LOWS AROUND 20.
HIGHS IN THE LOWER 30S. NORTHEAST WINDS AROUND 5 MPH.
MONDAY
PARTLY CLOUDY. CHANCE OF FLURRIES. LOWS AROUND 16.
HIGHS IN THE UPPER 20S. WEST WINDS AROUND 10 MPH.
TUESDAY
COLDER. MOSTLY CLOUDY WITH CHANCE OF SNOW. LOWS AROUND
9. HIGHS AROUND 18.
WEDNESDAY
PARTLY CLOUDY WITH CHANCE OF FLURRIES. LOWS NEAR
ZERO. HIGHS AROUND 20.
WYZ309-202315-
SOUTH LARAMIE RANGE/MEDICINE BOW NF-
322 AM MST THU FEB 20 2020
TODAY
SKY/WEATHER.........SUNNY.
MAX TEMPERATURE.....23-33.
24 HR TREND......11 DEGREES WARMER.
MIN HUMIDITY........36-42 PERCENT.
24 HR TREND......36 PERCENT DRIER.
20-FOOT WINDS.......WEST AROUND 10 MPH WITH HIGHER GUSTS.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST AROUND 15 MPH.
MIXING HEIGHT.......400-2300 FT AGL.
SMOKE DISPERSAL.....POOR (8000-19700 KNOT-FT).
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
DOMINATED FIRE GROWTH.
TONIGHT
SKY/WEATHER.........CLEAR.
MIN TEMPERATURE.....9-17.
24 HR TREND......12 DEGREES WARMER.
MAX HUMIDITY........63-69 PERCENT.
24 HR TREND......24 PERCENT DRIER.
HUMIDITY RECOVERY...FAIR.
20-FOOT WINDS.......WEST 10 TO 15 MPH. GUSTS UP TO 30 MPH
INCREASING TO 45 MPH AFTER MIDNIGHT.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST 20 TO 25 MPH.
MIXING HEIGHT.......400-900 FT AGL.
SMOKE DISPERSAL.....POOR (9600-12300 KNOT-FT).
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
FIRE GROWTH.
FRIDAY
SKY/WEATHER.........SUNNY.
MAX TEMPERATURE.....35-45.
24 HR TREND......10 DEGREES WARMER.
MIN HUMIDITY........32-38 PERCENT.
24 HR TREND......3 PERCENT WETTER.
20-FOOT WINDS.......WEST AROUND 20 MPH WITH GUSTS TO AROUND 45 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST AROUND 30 MPH.
MIXING HEIGHT.......600-2600 FT AGL.
SMOKE DISPERSAL.....POOR TO FAIR (16400-52400 KNOT-FT).
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
DOMINATED FIRE GROWTH.
FORECAST DAYS 3 THROUGH 7
SATURDAY
CLEAR. LOWS IN THE MID 20S. HIGHS IN THE MID 40S.
WEST WINDS AROUND 20 MPH.
SUNDAY
COLDER. MOSTLY CLOUDY WITH CHANCE OF SNOW. LOWS IN THE
MID 20S. HIGHS IN THE MID 30S. NORTHWEST WINDS AROUND 10 MPH.
MONDAY
PARTLY CLOUDY WITH CHANCE OF SNOW. LOWS IN THE LOWER
20S. HIGHS IN THE MID 30S. WEST WINDS AROUND 15 MPH.
TUESDAY
COLDER. MOSTLY CLOUDY WITH CHANCE OF SNOW. LOWS AROUND
13. HIGHS IN THE LOWER 20S.
WEDNESDAY
PARTLY CLOUDY WITH CHANCE OF SNOW. LOWS AROUND 7.
HIGHS IN THE LOWER 20S.
WYZ310-202315-
PLATTE/GOSHEN/CENTRAL AND EASTERN LARAMIE-
322 AM MST THU FEB 20 2020
TODAY
SKY/WEATHER.........SUNNY.
MAX TEMPERATURE.....33-38.
24 HR TREND......11 DEGREES WARMER.
MIN HUMIDITY........28-34 PERCENT.
24 HR TREND......30 PERCENT DRIER.
20-FOOT WINDS.......SOUTHWEST 5 TO 10 MPH AND GUSTY.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH.
MIXING HEIGHT.......700-2700 FT AGL.
SMOKE DISPERSAL.....POOR (7500-23800 KNOT-FT).
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
FIRE GROWTH.
TONIGHT
SKY/WEATHER.........CLEAR.
MIN TEMPERATURE.....11-17.
24 HR TREND......8 DEGREES WARMER.
MAX HUMIDITY........64-70 PERCENT.
24 HR TREND......23 PERCENT DRIER.
HUMIDITY RECOVERY...FAIR.
20-FOOT WINDS.......SOUTHWEST AROUND 10 MPH. GUSTS UP TO 15 MPH
INCREASING TO 25 MPH AFTER MIDNIGHT.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH.
MIXING HEIGHT.......300-800 FT AGL.
SMOKE DISPERSAL.....POOR (6400-7700 KNOT-FT).
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
FIRE GROWTH.
FRIDAY
SKY/WEATHER.........SUNNY.
MAX TEMPERATURE.....46-52.
24 HR TREND......15 DEGREES WARMER.
MIN HUMIDITY........23-29 PERCENT.
24 HR TREND......2 PERCENT DRIER.
20-FOOT WINDS.......WEST AROUND 15 MPH WITH GUSTS TO AROUND 35 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST AROUND 20 MPH.
MIXING HEIGHT.......500 FT AGL INCREASING TO 2100-4100 FT AGL IN
THE AFTERNOON.
SMOKE DISPERSAL.....POOR (9500 KNOT-FT) INCREASING TO GOOD (60400
KNOT-FT) IN THE AFTERNOON.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
FIRE GROWTH.
FORECAST DAYS 3 THROUGH 7
SATURDAY
CLEAR. LOWS IN THE MID 20S. HIGHS IN THE LOWER 50S.
WEST WINDS AROUND 10 MPH.
SUNDAY
COLDER. MOSTLY CLOUDY WITH CHANCE OF SNOW. LOWS IN THE
MID 20S. HIGHS IN THE LOWER 40S. NORTHWEST WINDS AROUND 5 MPH.
MONDAY
PARTLY CLOUDY. CHANCE OF FLURRIES. LOWS IN THE LOWER
20S. HIGHS IN THE LOWER 40S. NORTHWEST WINDS AROUND 10 MPH.
TUESDAY
COLDER. MOSTLY CLOUDY WITH CHANCE OF SNOW. LOWS AROUND
17. HIGHS IN THE MID 20S.
WEDNESDAY
PARTLY CLOUDY. CHANCE OF FLURRIES. LOWS AROUND 10.
HIGHS IN THE UPPER 20S.
NEZ311-202315-
PINE RIDGE/NEBRASKA NATIONAL FOREST/OGLALA NATIONAL GRASSLANDS-
322 AM MST THU FEB 20 2020
TODAY
SKY/WEATHER.........SUNNY.
MAX TEMPERATURE.....33-39.
24 HR TREND......18 DEGREES WARMER.
MIN HUMIDITY........38-44 PERCENT.
24 HR TREND......31 PERCENT DRIER.
20-FOOT WINDS.......SOUTHWEST AROUND 10 MPH AND GUSTY.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH.
MIXING HEIGHT.......600-2600 FT AGL.
SMOKE DISPERSAL.....POOR (8900-25400 KNOT-FT).
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
FIRE GROWTH.
TONIGHT
SKY/WEATHER.........CLEAR.
MIN TEMPERATURE.....11-17.
24 HR TREND......5 DEGREES WARMER.
MAX HUMIDITY........67-73 PERCENT.
24 HR TREND......20 PERCENT DRIER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......SOUTHWEST AROUND 10 MPH AND GUSTY.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH.
MIXING HEIGHT.......200-700 FT AGL.
SMOKE DISPERSAL.....POOR (6400-7100 KNOT-FT).
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
FIRE GROWTH.
FRIDAY
SKY/WEATHER.........SUNNY.
MAX TEMPERATURE.....44-50.
24 HR TREND......11 DEGREES WARMER.
MIN HUMIDITY........32-38 PERCENT.
24 HR TREND......11 PERCENT DRIER.
20-FOOT WINDS.......WEST AROUND 10 MPH. GUSTS UP TO 25 MPH IN THE
MORNING.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST 15 TO 20 MPH.
MIXING HEIGHT.......300-1800 FT AGL.
SMOKE DISPERSAL.....POOR (8700-19400 KNOT-FT).
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
DOMINATED FIRE GROWTH.
FORECAST DAYS 3 THROUGH 7
SATURDAY
CLEAR. LOWS IN THE LOWER 20S. HIGHS AROUND 50. WEST
WINDS AROUND 10 MPH.
SUNDAY
MOSTLY CLOUDY. LOWS IN THE MID 20S. HIGHS IN THE LOWER
40S. NORTHWEST WINDS AROUND 5 MPH.
MONDAY
MOSTLY CLOUDY WITH CHANCE OF FLURRIES. LOWS IN THE
LOWER 20S. HIGHS AROUND 40. WINDS GENERALLY LESS THAN 10 MPH.
TUESDAY
COLDER. MOSTLY CLOUDY WITH CHANCE OF SNOW. LOWS AROUND
19. HIGHS IN THE UPPER 20S.
WEDNESDAY
MOSTLY CLOUDY. CHANCE OF FLURRIES. LOWS AROUND 12.
HIGHS IN THE UPPER 20S.
NEZ312-202315-
BOX BUTTE/SOUTH SIOUX-
322 AM MST THU FEB 20 2020
TODAY
SKY/WEATHER.........SUNNY.
MAX TEMPERATURE.....35-40.
24 HR TREND......12 DEGREES WARMER.
MIN HUMIDITY........27-33 PERCENT.
24 HR TREND......33 PERCENT DRIER.
20-FOOT WINDS.......SOUTHWEST AROUND 10 MPH AND GUSTY.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH.
MIXING HEIGHT.......800-2800 FT AGL.
SMOKE DISPERSAL.....POOR (11100-36200 KNOT-FT).
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
FIRE GROWTH.
TONIGHT
SKY/WEATHER.........CLEAR.
MIN TEMPERATURE.....12-17.
24 HR TREND......5 DEGREES WARMER.
MAX HUMIDITY........66-72 PERCENT.
24 HR TREND......17 PERCENT DRIER.
HUMIDITY RECOVERY...FAIR.
20-FOOT WINDS.......SOUTHWEST AROUND 10 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST 15 TO 20 MPH.
MIXING HEIGHT.......500 FT AGL.
SMOKE DISPERSAL.....POOR (6500-9100 KNOT-FT).
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
FIRE GROWTH.
FRIDAY
SKY/WEATHER.........SUNNY.
MAX TEMPERATURE.....48-53.
24 HR TREND......13 DEGREES WARMER.
MIN HUMIDITY........20-26 PERCENT.
24 HR TREND......7 PERCENT DRIER.
20-FOOT WINDS.......WEST 10 TO 15 MPH. GUSTS UP TO 25 MPH IN THE
MORNING.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST 15 TO 20 MPH.
MIXING HEIGHT.......500 FT AGL INCREASING TO 2100-3200 FT AGL IN
THE AFTERNOON.
SMOKE DISPERSAL.....POOR (8600-37500 KNOT-FT).
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
FIRE GROWTH.
FORECAST DAYS 3 THROUGH 7
SATURDAY
CLEAR. LOWS IN THE LOWER 20S. HIGHS IN THE MID 50S.
WEST WINDS AROUND 10 MPH.
SUNDAY
COLDER. MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW. LOWS IN
THE MID 20S. HIGHS IN THE LOWER 40S. NORTH WINDS AROUND 5 MPH.
MONDAY
MOSTLY CLOUDY. CHANCE OF FLURRIES. LOWS IN THE LOWER
20S. HIGHS IN THE LOWER 40S. NORTHWEST WINDS AROUND 10 MPH.
TUESDAY
COLDER. MOSTLY CLOUDY WITH CHANCE OF SNOW. LOWS AROUND
18. HIGHS IN THE UPPER 20S.
WEDNESDAY
MOSTLY CLOUDY. CHANCE OF FLURRIES. LOWS AROUND 11.
HIGHS IN THE UPPER 20S.
NEZ313-202315-
SCOTTS BLUFF NATIONAL MONUMENT/WILDCAT HILLS-
322 AM MST THU FEB 20 2020
TODAY
SKY/WEATHER.........SUNNY. PATCHY FOG UNTIL 0800.
MAX TEMPERATURE.....36-41.
24 HR TREND......13 DEGREES WARMER.
MIN HUMIDITY........24-30 PERCENT.
24 HR TREND......37 PERCENT DRIER.
20-FOOT WINDS.......SOUTHWEST AROUND 10 MPH AND GUSTY.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH.
MIXING HEIGHT.......800-1300 FT AGL INCREASING TO 3100-3900 FT AGL
IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR TO FAIR (11200-48200 KNOT-FT).
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
FIRE GROWTH.
TONIGHT
SKY/WEATHER.........CLEAR.
MIN TEMPERATURE.....13-18.
24 HR TREND......3 DEGREES WARMER.
MAX HUMIDITY........72-78 PERCENT.
24 HR TREND......23 PERCENT DRIER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......SOUTHWEST AROUND 10 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH.
MIXING HEIGHT.......200-800 FT AGL.
SMOKE DISPERSAL.....POOR (7000-7900 KNOT-FT).
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
FIRE GROWTH.
FRIDAY
SKY/WEATHER.........SUNNY.
MAX TEMPERATURE.....50-55.
24 HR TREND......16 DEGREES WARMER.
MIN HUMIDITY........17-23 PERCENT.
24 HR TREND......9 PERCENT DRIER.
20-FOOT WINDS.......WEST 10 TO 15 MPH WITH HIGHER GUSTS.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST AROUND 20 MPH.
MIXING HEIGHT.......300-800 FT AGL INCREASING TO 3500-5500 FT AGL
IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR (8400 KNOT-FT) INCREASING TO GOOD (79600
KNOT-FT) IN THE AFTERNOON.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
FIRE GROWTH.
FORECAST DAYS 3 THROUGH 7
SATURDAY
CLEAR. LOWS IN THE MID 20S. HIGHS IN THE UPPER 50S.
WEST WINDS AROUND 10 MPH.
SUNDAY
COLDER. MOSTLY CLOUDY. CHANCE OF SNOW. LOWS IN THE
UPPER 20S. HIGHS IN THE LOWER 40S. NORTHEAST WINDS AROUND 10 MPH.
MONDAY
MOSTLY CLOUDY. CHANCE OF FLURRIES. LOWS IN THE LOWER
20S. HIGHS IN THE MID 40S. NORTHWEST WINDS AROUND 10 MPH.
TUESDAY
COLDER. MOSTLY CLOUDY WITH CHANCE OF SNOW. LOWS AROUND
18. HIGHS IN THE UPPER 20S.
WEDNESDAY
MOSTLY CLOUDY WITH CHANCE OF FLURRIES. LOWS AROUND
12. HIGHS AROUND 30.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page