Spot Forecast
Issued by NWS Riverton, WY
Issued by NWS Riverton, WY
652
FNUS75 KRIW 201407
FWSRIW
Spot Forecast for Russell Creek Fire...US Forest Service
National Weather Service Riverton WY
807 AM MDT Sat Jul 20 2024
Forecast is based on forecast start time of 0800 MDT on July 20.
If conditions become unrepresentative, contact the National Weather
Service
.DISCUSSION...
Weather conditions will continue to be very similar to the past
few days. There is a 40% chance of afternoon showers and thunderstorms
again today between 1100 and 1900. There should be two main rounds of
showers and thunderstorms. The first will be around 1800 to 1900 and
then the second round coming later in the afternoon, between 1500 and
1800. The main threats from any showers and storms will be frequent
lightning and strong and erratic wind gusts up to 40 mph.
Sunday, afternoon showers and thunderstorms are less likely
(only 10% chance), but temperatures and relative humidity values
will be similar to today. A warming and drying trend will then begin
Monday, and continue through much of next week.
...Thunderstorms imply strong gusty and erratic winds...
...Haines index is high level haines both day and night...
.REST OF TODAY...
Sky/weather.........Mostly sunny (25-35 percent) then becoming
partly sunny (60-70 percent). Haze through the
day. Scattered showers and thunderstorms after
1200.
CWR.................0 percent increasing to 20 percent in the
afternoon.
Chance of pcpn......40 percent.
LAL.................1 until 1300, then 3.
Max temperature.....Around 70.
Min humidity........37 percent.
Wind (20 ft)........Light winds until 1100, then east 8 to 10 mph
with gusts to around 16 mph. Gusty and erratic
winds expected near thunderstorms in the
afternoon.
Ridgetop wind.......Northwest around 10 mph until 1000, then east.
Mixing height.......6000 ft AGL after 1100.
Transport winds.....North 8 to 16 mph until 1300, then northeast 15
to 17 mph.
Smoke dispersal.....Poor until 0900. Good after 1100.
Haines Index........3 to 4.
TIME (MDT) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........15 10 20 30 45 70 70 55 60 55
Weather cov.....DEF DEF DEF DEF DEF DEF DEF DEF DEF DEF
Weather type....HAZ HAZ HAZ HAZ HAZ HAZ HAZ HAZ HAZ HAZ
Tstm cov........ SCT SCT SCT ISO ISO
CWR.............0 0 0 0 20 20 20 20 20 20
Chc of pcpn (%).0 0 0 10 10 30 40 30 20 20
LAL.............1 1 1 1 3 3 3 3 3 3
Temp............59 61 64 66 68 69 68 67 67 66
RH..............55 51 46 39 38 41 43 41 41 42
20 FT wind dir..W NW E E E E E NE NE E
20 FT wind spd..4 3 6 8 9 9 10 9 9 8
20 FT wind gust.6 5 8 13 14 14 16 14 14 13
Ridge wind dir..W NW E E E E E NE NE E
Ridge wind spd..10 10 10 15 15 15 15 15 15 15
Mix hgt (kft)...0.1 2.0 3.5 5.0 5.5 6.0 6.0 5.0 4.5 5.5
Transp wind dir.NW N N N N N N NE NE NE
Transp wind spd.9 8 12 15 16 16 17 16 16 15
Haines index....4 4 4 4 3 3 3 3 3 3
SDspl kt-ft/10002 13 36 64 79 84 89 68 61 70
.TONIGHT...
Sky/weather.........Mostly cloudy (65-75 percent) then becoming
partly cloudy (25-35 percent). Haze early in
the evening. Isolated showers and thunderstorms
before 1900.
CWR.................1 percent.
Chance of pcpn......10 percent.
LAL.................1.
Min temperature.....Around 53.
Max humidity........61 percent.
Wind (20 ft)........East winds around 7 mph until 2000, then light.
Ridgetop wind.......East 10 to 15 mph until 2300, then northwest.
Mixing height.......2500 ft AGL until 2000.
Transport winds.....Northeast 9 to 14 mph until 0300, then
northwest 9 to 10 mph.
Smoke dispersal.....Fair until 1900. Poor after 2000.
Haines Index........3.
TIME (MDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM
Sky (%).........70 40 25 20 20 15
Weather cov.....DEFNTE
Weather type....HAZE NONE NONE NONE NONE NONE
Tstm cov........
CWR.............0 0 0 0 0 0
Chc of pcpn (%).10 10 0 0 0 0
LAL.............1 1 1 1 1 1
Temp............65 62 57 56 55 54
RH..............43 51 59 59 59 61
20 ft wind......E 7 E 6 SE 5 NW 5 W 4 W 4
20 ft wind gust.11 10 7 7 6 6
Ridgetop wind...E 15 E 15 SE 10 NW 10 W 10 W 10
Mix hgt (ft)....3500 1000 BLW100 BLW100 BLW100 BLW100
Transport wind..NE 14 E 13 NE 10 NE 10 N 9 NW 9
Haines index....3 3 3 3 3 3
SDspl kt-ft/100044 10 1 1 1 1
.SUNDAY...
Sky/weather.........Sunny (10-20 percent). Haze in the late morning
and early afternoon. Areas of smoke late in the
afternoon.
CWR.................0 percent.
Chance of pcpn......10 percent.
LAL.................1.
Max temperature.....Around 69.
Min humidity........34 percent.
Wind (20 ft)........Light winds until 1000, then east 7 to 9 mph
with gusts to around 14 mph.
Ridgetop wind.......Northwest around 10 mph until 0900, then east.
Mixing height.......6500 ft AGL after 1100.
Transport winds.....Northwest 10 to 12 mph until 0800, then
northeast 8 to 16 mph.
Smoke dispersal.....Poor until 0900. Good after 1200.
Haines Index........3.
TIME (MDT) 6 AM 9 AM NOON 3 PM
Sky (%).........10 5 10 20
Weather cov..... DEFNTE DEFNTE AREAS
Weather type....NONE HAZE HAZE SMOKE
Tstm cov........
CWR.............0 0 0 0
Chc of pcpn (%).0 0 10 10
LAL.............1 1 1 1
Temp............53 57 66 69
RH..............60 49 40 34
20 FT wind......NW 6G8 E 4G6 E 9G14 E 9G14
Ridgetop wind...NW 10 E 10 E 15 E 15
Mix hgt (ft)....BLW100 3000 5500 6500
Transport wind..NW 12 NE 9 E 16 NE 16
Haines index....3 3 3 3
SDspl kt-ft/10001 22 77 91
.FORECAST DAYS 3 THROUGH 5...
.MONDAY...
Mostly clear. Haze in the evening. Isolated showers and
thunderstorms. Lows in the mid 50s. Highs in the lower 70s. East
winds around 7 mph.
.TUESDAY...
Mostly clear. Isolated showers and thunderstorms. Lows in the mid
50s. Highs in the mid 70s. North winds around 7 mph.
.WEDNESDAY...
Mostly clear. Isolated showers and thunderstorms. Lows in the
upper 50s. Highs around 80. West winds around 8 mph.
$$
Forecaster...Hensley
Requested by...Shawn Gettings
Type of request...WILDFIRE
.TAG 2418357.6/RIW
.DELDT 07/20/24
.FormatterVersion 2.0.0
.EMAIL shawn.gettings@usda.gov