Suppression Forecast
Issued by NWS Riverton, WY

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FNUS75 KRIW 231142
FWSRIW

Spot Forecast for Elk Meadow...Bridger Teton National Forest
National Weather Service Riverton WY
542 AM MDT Fri Sep 23 2022

Forecast is based on forecast start time of 0600 MDT on September 23.
If conditions become unrepresentative, contact the National Weather
Service

.DISCUSSION...

West winds will remain elevated today, but not nearly as gusty as
Thursday. Winds will generally remain 10 to 15 mph during the
afternoon, with a few gusts right around 20 mph. Humidity recovery
this morning was excellent, and will only lower to near 40 percent
this afternoon. Skies will remain nearly clear, with no rain
threat.

Winds will decrease below 5 mph overnight, while skies remain
clear. Saturday will be similar to today, with gusty west winds in
the afternoon, reaching near 25 mph. Conditions will be drier
Saturday, with minimum RH falling to 25 to 30 percent.

...Thunderstorms imply strong gusty and erratic winds...
...Haines index is high level haines both day and night...

.TODAY...

Sky/weather.........Sunny (5-15 percent).
CWR.................0 percent.
Chance of pcpn......0 percent.
LAL.................1.
Max temperature.....Around 57.
Min humidity........40 percent.
Wind (20 ft)........Northwest winds 9 to 13 mph shifting to the
                    west 12 to 15 mph with gusts to around 22 mph
                    late in the morning.
Ridgetop wind.......Northwest 15 to 20 mph shifting to the west in
                    the afternoon.
Mixing height.......4600 ft AGL.
Transport winds.....West 17 to 22 mph.
Smoke dispersal.....Poor (9000 knot-ft) early in the morning
                    increasing to excellent (87000 knot-ft) in the
                    afternoon.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.

TIME (MDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........12  13  14  10  6   5   6   6   7   6   6   8
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0   0   0   0
Chc of pcpn (%).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............33  33  35  40  44  47  50  52  54  54  55  56
RH..............92  89  85  76  68  60  54  50  46  46  41  40
20 FT wind dir..N   N   N   NW  NW  W   W   W   W   W   W   W
20 FT wind spd..11  11  9   11  13  12  13  14  15  14  14  14
20 FT wind gust.14  14  12  14  17  18  17  19  21  22  19  19
Ridge wind dir..N   N   N   NW  NW  NW  W   W   W   W   W   W
Ridge wind spd..15  15  15  20  20  20  20  20  20  20  20  20
Mix hgt (kft)...0.6 0.6 0.6 1.1 1.1 1.1 3.4 3.4 3.4 4.6 4.6 4.6
Transp wind dir.W   W   W   W   W   W   W   W   W   W   W   W
Transp wind spd.17  17  17  20  20  20  22  22  22  22  22  22
Haines index....2   2   2   2   2   2   2   2   2   2   2   2
SDspl kt-ft/10009   9   9   19  19  19  65  65  65  87  87  87

.TONIGHT...

Sky/weather.........Mostly clear (0-10 percent).
CWR.................0 percent.
Chance of pcpn......0 percent.
LAL.................1.
Min temperature.....Around 36.
Max humidity........67 percent.
Wind (20 ft)........Northwest winds 6 to 11 mph with gusts to
                    around 18 mph shifting to the north 5 to 6 mph
                    in the late evening and overnight.
Ridgetop wind.......Northwest around 15 mph shifting to the north
                    overnight.
Mixing height.......300 ft AGL.
Transport winds.....West 10 to 17 mph.
Smoke dispersal.....Good (54400 knot-ft) early in the evening
                    decreasing to poor (3000 knot-ft) late in the
                    night.
Haines Index........3 or very low potential for large plume
                    dominated fire growth.

TIME (MDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........6   7   9   9   6   4   4   5   6   3   5   4
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0   0   0   0
Chc of pcpn (%).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............56  52  48  44  43  42  40  39  38  38  38  37
RH..............40  46  51  60  62  65  67  67  67  67  67  67
20 FT wind dir..W   W   NW  NW  N   N   N   N   N   N   N   N
20 FT wind spd..11  11  8   6   6   6   6   6   6   6   5   5
20 FT wind gust.18  17  13  10  8   8   10  8   7   7   6   6
Ridge wind dir..W   W   W   NW  NW  NW  N   N   N   N   N   N
Ridge wind spd..15  15  15  15  15  15  15  15  15  10  10  10
Mix hgt (kft)...3.6 3.6 3.6 0.6 0.6 0.6 0.4 0.4 0.4 0.3 0.3 0.3
Transp wind dir.W   W   W   W   W   W   W   W   W   W   W   W
Transp wind spd.17  17  17  13  13  13  13  13  13  10  10  10
Haines index....3   3   3   3   3   3   3   3   3   3   3   3
SDspl kt-ft/100054  54  54  6   6   6   4   4   4   3   3   3

.SATURDAY...

Sky/weather.........Sunny (5-15 percent).
CWR.................0 percent.
Chance of pcpn......0 percent.
LAL.................1.
Max temperature.....Around 62.
Min humidity........29 percent.
Wind (20 ft)........North winds around 5 mph early in the morning
                    becoming light, then becoming west 5 to 14 mph
                    with gusts to around 22 mph early in the
                    morning increasing to 14 to 15 mph with gusts
                    to around 23 mph.
Ridgetop wind.......North around 10 mph shifting to the west 15 to
                    20 mph in the late morning and early afternoon,
                    then increasing to around 25 mph late in the
                    afternoon.
Mixing height.......4900 ft AGL.
Transport winds.....West 9 to 15 mph increasing to 21 to 23 mph in
                    the afternoon.
Smoke dispersal.....Poor (2700 knot-ft) early in the morning
                    increasing to excellent (98400 knot-ft) in the
                    afternoon.
Haines Index........3 or very low potential for large plume
                    dominated fire growth.

TIME (MDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........6   8   13  9   5   3   3   4   5   6   6   6
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0   0   0   0
Chc of pcpn (%).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............37  39  41  44  49  53  57  58  60  61  61  61
RH..............67  62  59  57  50  43  35  34  32  31  31  29
20 FT wind dir..N   N   NW  NW  W   W   W   W   W   W   W   W
20 FT wind spd..5   4   5   6   8   10  11  13  14  15  15  14
20 FT wind gust.6   6   6   8   11  14  17  19  22  23  23  21
Ridge wind dir..N   N   N   W   W   W   W   W   W   W   W   W
Ridge wind spd..10  10  10  15  15  15  20  20  20  25  25  25
Mix hgt (kft)...0.3 0.3 0.3 0.7 0.7 0.7 3.3 3.3 3.3 4.9 4.9 4.9
Transp wind dir.W   W   W   W   W   W   W   W   W   W   W   W
Transp wind spd.9   9   9   15  15  15  21  21  21  23  23  23
Haines index....3   3   3   3   3   3   3   3   3   3   3   3
SDspl kt-ft/10003   3   3   9   9   9   59  59  59  98  98  98

.FORECAST DAYS 3 THROUGH 5...
.SUNDAY...
Clear. Lows around 40. Highs in the upper 60s. Northwest winds
around 7 mph.
.MONDAY...
Clear. Lows in the lower 40s. Highs in the upper 60s. North winds
around 7 mph.
.TUESDAY...
Clear. Lows in the upper 30s. Highs around 70. North winds around
7 mph.

$$
Forecaster...Straub
Requested by...Erin Martin
Type of request...WILDFIRE
.TAG 2218387.1/RIW
.DELDT 09/23/22
.FormatterVersion 2.0.0
.EMAIL wytdc@firenet.gov


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