Suppression Forecast
Issued by NWS Cheyenne, WY

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000
FNUS75 KCYS 092233
FWSCYS

Spot Forecast for Clemons Fire...Casper Interagency Dispatch
National Weather Service Cheyenne WY
433 PM MDT Thu Jul 9 2020

If conditions become un-representative...contact the National Weather
Service.

Please contact our office at (307) 772-2227, if you have questions or concerns with this forecast.

...RED FLAG WARNING IN EFFECT FROM 11 AM TO 9 PM MDT FRIDAY...

.DISCUSSION...
Dodge Creek RAWS station is reporting 8 percent relative humidity
late this afternoon with wind gust around 25 MPH. Scattered
showers and thunderstorms have developed along the South Laramie
Range primarily east of the fire area. However, scattered showers
with gusty erratic winds up to 40 MPH will be possible through 9
PM this evening. Humidity will recover to around 50 percent
tonight before Friday`s critical fire weather day. Wind gusts up
to 45 MPH out of the west are expected Friday afternoon with
single digit RHs.

.REST OF TONIGHT...

Sky/weather.........Mostly clear.
CWR.................3 percent.
LAL.................1.
Min temperature.....56 to 60.
Max humidity........48 to 53 percent.
Wind (20 ft)........Southwest winds 10 to 12 mph. Gusts
                    up to 25 mph.
Mixing height.......1100-2000 ft AGL.
Transport winds.....West 16 to 22 mph.
Smoke dispersal.....Fair (15700 knot-ft).
Haines Index........6 - high potential for large plume
                    dominated fire growth.

TIME (MDT)      10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........25  25  6   6   6   0   0   0
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0
LAL.............1   1   1   1   1   1   1   1
Temp............67  65  64  63  63  61  60  59
RH..............42  45  48  50  48  49  47  44
20 FT wind dir..SE  S   S   S   S   SW  SW  SW
20 FT wind spd..7   8   9   9   10  10  10  10
20 FT wind gust.10  10  11  12  13  13  13  13
Mix hgt (kft)...2.0 2.0 1.1 1.1 1.1 1.1 1.1 1.1
Transp wind dir.S   S   S   S   SW  SW  SW  W
Transp wind spd.18  21  22  22  20  18  17  16
Haines index....4   4   6   6   6   6   6   6
SDspl kt-ft/100026  26  16  16  16  16  16  16

.FRIDAY...

Sky/weather.........Sunny.
CWR.................0 percent.
LAL.................1.
Max temperature.....87 to 93.
Min humidity........7 to 9 percent.
Wind (20 ft)........Windy. West winds 10 to 17 mph with gusts to
                    around 25 mph in the morning increasing after
                    11 AM to around 30 mph with gusts to around 45 mph.
Mixing height.......9500 ft AGL increasing to 15300 ft AGL in the
                    afternoon.
Transport winds.....West 16 to 25 mph increasing to around 28 mph
                    late in the afternoon.
Smoke dispersal.....Excellent (153600 knot-ft) increasing to
                    301300 knot-ft in the afternoon.
Haines Index........6 high potential for large plume dominated fire
                    growth.

TIME (MDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........0   0   0   0   1   1   1   2   3   4   9   14
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0   0   0   0
LAL.............1   1   1   1   1   1   1   1   1   1   1   1
Temp............60  64  70  76  81  85  87  89  90  91  92  91
RH..............39  32  26  21  16  12  10  9   9   9   8   8
20 FT wind dir..SW  SW  SW  SW  W   W   W   W   W   W   W   W
20 FT wind spd..10  10  10  12  13  15  17  21  25  29  30  31
20 FT wind gust.13  13  13  14  17  19  22  28  32  36  38  39
Mix hgt (kft)...9.5 9.5 9.5 9.5 9.5 9.5 15  15  15  15  15  15
Transp wind dir.W   W   W   W   W   W   W   W   W   W   W   W
Transp wind spd.16  17  20  21  20  20  18  20  22  23  25  28
Haines index....6   6   6   6   6   6   6   6   6   6   6   6
SDspl kt-ft/1000154 154 154 154 154 154 301 301 301 301 301 301

.FRIDAY NIGHT...

Sky/weather.........Mostly clear.
CWR.................0 percent.
LAL.................1.
Min temperature.....52 to 56.
Max humidity........57 to 63 percent.
Wind (20 ft)........Breezy. West winds 25 to 30 mph with gusts to
                    around 40 mph decreasing to 12 to 18 mph with
                    gusts to around 25 mph early in the evening,
                    then shifting to the north 5 to 8 mph with
                    gusts to around 12 mph after midnight becoming
                    light early in the morning.
Mixing height.......7700 ft AGL decreasing to 1700 ft AGL after
                    midnight.
Transport winds.....Northwest 20 to 29 mph becoming northeast 6 to
                    15 mph after midnight.
Smoke dispersal.....Excellent (161200 knot-ft) decreasing to fair
                    (14300 knot-ft) after midnight.
Haines Index........5 to 6 OR moderate potential for large plume
                    dominated fire growth to high potential for
                    large plume dominated fire growth.

TIME (MDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........19  19  20  21  20  20  20  18  15  12  10  7
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0   0   0   0
LAL.............1   1   1   1   1   1   1   1   1   1   1   1
Temp............89  85  81  76  72  69  66  64  61  58  56  55
RH..............9   10  11  14  19  24  32  37  44  51  57  59
20 FT wind dir..W   W   W   W   NW  N   N   N   N   N   NW  W
20 FT wind spd..29  25  18  12  8   7   6   6   5   3   3   5
20 FT wind gust.37  32  24  14  11  10  8           4   5
Mix hgt (kft)...7.7 7.7 7.7 7.7 7.7 7.7 1.7 1.7 1.7 1.7 1.7 1.7
Transp wind dir.W   W   W   W   NW  N   N   N   N   N   NE  NE
Transp wind spd.29  29  29  28  23  20  15  13  10  9   7   6
Haines index....6   6   6   6   6   6   5   5   5   5   5   5
SDspl kt-ft/1000161 161 161 161 161 161 14  14  14  14  14  14

$$
Forecaster...Brothers
Requested by...Clemons Fire IC
Type of request...WILDFIRE
.TAG 2009128.1/CYS
.DELDT 07/09/20
.EMAIL wycpc@firenet.gov



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