Spot Forecast
Issued by NWS Cheyenne, WY
Issued by NWS Cheyenne, WY
537
FNUS75 KCYS 270101
FWSCYS
Spot Forecast for Owen creek...Casper dispatch
National Weather Service Cheyenne WY
701 PM MDT Fri Jul 26 2024
If conditions become unrepresentative, contact the National Weather
Service at (307) 772-2227
.DISCUSSION...
Expect decreasing showers through the evening hours with rain ending
by 2000. Monsoon moisture in place will create fair overnight recoveries.
Another round of showers and storms likely for Saturday afternoon
around the same start time as today. Better chances for stronger storms
Saturday afternoon with stronger wind gusts over this afternoon. West to
southwest winds outside thunderstorms tonight through the day Saturday.
.REST OF TONIGHT...
Sky/weather.........Mostly cloudy (65-75 percent) through 2000. Then
partly cloudy (35-45 percent). Chance of
showers and thunderstorms through 2000.
CWR.................17 percent through 2000. Decreasing to 1 percent
overnight.
LAL.................4 until 2000, then 1.
Min temperature.....Around 57.
Max humidity........72 percent.
Wind (20 ft)........Southwest winds 6 to 8 mph through 0200. Then west
6 to 8 mph. Gusty and erratic winds expected near
thunderstorms through 2000.
Mixing height.......500 ft AGL.
Transport winds.....East around 9 mph shifting to the southwest 7
to 10 mph overnight.
Smoke dispersal.....Poor (4800 knot-ft).
Haines Index........3 or very low potential for large plume
dominated fire growth.
TIME (MDT) 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........77 59 50 43 41 32 30 31 32 32 29
Weather cov.....CHC CHC
Weather type....RW RW
Tstm cov........CHC CHC
CWR.............20 20 20 20 20 0 0 0 0 0 0
LAL.............4 4 2 2 2 1 1 1 1 1 1
Temp............66 65 65 64 63 62 61 60 60 59 58
RH..............68 68 68 67 67 70 70 72 69 69 72
20 FT wind dir..SW SW SW SW SW SW SW W W W W
20 FT wind spd..7 7 7 6 6 6 6 6 7 7 8
20 FT wind gust.15 14 12 10 10 10 10 10 12 13 14
Mix hgt (kft)...2.3 2.0 1.9 1.6 1.4 1.2 1.0 0.9 0.9 0.6 0.5
Transp wind dir.NE E SE SE S S S SW SW SW SW
Transp wind spd.9 9 8 7 7 7 7 8 10 9 10
Haines index....3 3 3 3 3 3 3 3 3 3 3
SDspl kt-ft/100019 16 14 10 8 7 6 6 8 5 5
.SATURDAY...
Sky/weather.........Mostly sunny (40-50 percent) through 1200...
becoming mostly cloudy. Chance of rain
showers and thunderstorms after 1200.
CWR.................3 percent increasing to 45 percent in the
afternoon.
LAL.................1 until 1200, then 4.
Max temperature.....Around 83.
Min humidity........28 percent.
Wind (20 ft)........West winds 7 to 10 mph with gusts to 16 mph.
Gusty and erratic winds expected near
thunderstorms in the afternoon.
Mixing height.......10600 ft AGL increasing to 12700 ft AGL in the
afternoon.
Transport winds.....Southwest 9 to 13 mph.
Smoke dispersal.....Poor (9200 knot-ft) early in the morning
increasing to very good (108400 knot-ft) in the
afternoon increasing to good (81900 knot-ft)
early in the morning increasing to very good
(124300 knot-ft) in the afternoon in the
afternoon.
Haines Index........4 or low potential for large plume dominated
fire growth.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........23 23 20 20 24 35 37 56 60 47 62 65
Weather cov..... CHC CHC CHC LKY LKY LKY
Weather type.... RW RW RW RW RW RW
Tstm cov........ CHC CHC CHC CHC CHC CHC
CWR.............0 0 0 0 0 0 50 50 50 50 50 50
LAL.............1 1 1 1 1 1 4 4 4 4 4 4
Temp............58 63 68 73 76 79 82 80 79 77 76 76
RH..............69 60 52 44 39 32 28 30 32 36 37 39
20 FT wind dir..W W W W W W W W W SW W W
20 FT wind spd..8 8 7 7 7 8 8 8 9 9 9 10
20 FT wind gust.15 15 14 14 14 14 15 16 16 17 17 18
Mix hgt (kft)...1.0 2.3 4.1 6.2 8.4 11 12 13 12 12 9.7 7.4
Transp wind dir.SW SW W W W W SW SW SW SW SW S
Transp wind spd.10 10 9 9 9 10 10 10 12 12 12 13
Haines index....4 4 4 4 4 4 4 4 4 4 4 4
SDspl kt-ft/10009 21 33 49 67 95 108 114 124 115 97 82
.SATURDAY NIGHT...
Sky/weather.........Mostly cloudy (60-70 percent) through 2200.
Then becoming partly cloudy (30-40 percent).
Chance of showers and thunderstorms through 2000.
Then slight chance of showers and thunderstorms
late in the evening.
CWR.................12 percent.
LAL.................4 until 2000, then 3 until 2400, then 1.
Min temperature.....Around 56.
Max humidity........71 percent.
Wind (20 ft)........West winds 8 to 10 mph. Gusty and erratic winds
expected near thunderstorms in the evening.
Mixing height.......700 ft AGL.
Transport winds.....Southwest 12 to 13 mph shifting to the
northwest 13 to 15 mph early in the evening,
then shifting to the southwest 10 to 12 mph
late in the evening.
Smoke dispersal.....Fair (59500 knot-ft) early in the evening
decreasing to poor (7000 knot-ft) late in the
night.
Haines Index........3 to 5 or very low to moderate potential for
large plume dominated fire growth.
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........65 58 68 71 49 36 32 31 31 29 25 20
Weather cov.....CHC CHC CHC SCH SCH SCH
Weather type....RW RW RW RW RW RW
Tstm cov........CHC CHC CHC SCH SCH SCH
CWR.............10 10 10 10 10 10 0 0 0 0 0 0
LAL.............4 4 4 3 3 3 2 2 2 1 1 1
Temp............72 69 67 65 63 62 61 60 59 59 58 58
RH..............44 51 54 60 65 65 67 67 67 67 67 67
20 FT wind dir..W W W SW SW W W W W W W W
20 FT wind spd..10 9 9 8 8 8 8 8 8 8 8 9
20 FT wind gust.18 17 16 15 15 15 15 15 15 15 15 16
Mix hgt (kft)...5.4 4.2 3.4 2.8 2.1 1.7 1.4 1.2 1.0 1.0 0.8 0.7
Transp wind dir.S SW NW N NW SW S SW SW W W W
Transp wind spd.13 12 13 15 14 12 10 10 10 12 10 12
Haines index....3 3 3 3 3 3 5 5 5 5 5 5
SDspl kt-ft/100060 42 37 36 26 17 12 10 9 10 7 7
$$
Forecaster...Claycomb
Requested by...M. McLaughlin
Type of request...WILDFIRE
.TAG 2418952.2/CYS
.DELDT 07/26/24
.FormatterVersion 2.0.0
.EMAIL wycpc@firenet.gov