Spot Forecast
Issued by NWS Cheyenne, WY
Issued by NWS Cheyenne, WY
333 FNUS75 KCYS 241408 FWSCYS Spot Forecast for Round 2 RX...Gering Fire Department National Weather Service Cheyenne WY 808 AM MDT Fri May 24 2024 If conditions become unrepresentative, contact the National Weather Service at (307) 772-2227 .DISCUSSION... Sunday will be the most active day with chances for some afternoon thunderstorms to develop around the fire area Main window for thunderstorm activity will be between 2-6pm. Prior to thunderstorm initiation on Sunday the area will see gusty northwest winds sustained around 25 mph with gusts approaching 35 mph at times. Winds in and around thunderstorm cores could be strong and erratic. There is also the additional threat for some cloud-to- ground lightning strikes. Heading into Sunday night and into Monday the weather conditions will improve with little to no chances for thunderstorm activity and decreasing wind speeds. With recent rains around the area, expecting the minimum relative humidity to remain above 20 percent Monday afternoon. .SUNDAY... Sky/weather.........Mostly sunny (20-30 percent). Slight chance of rain showers in the afternoon. Slight chance of thunderstorms late in the afternoon. CWR.................3 percent. LAL.................1 until 1500, then 2. Max temperature.....Around 75. Min humidity........24 percent. Wind (20 ft)........Northwest winds 16 to 23 mph. Gusts up to 36 mph in the afternoon. Gusty and erratic winds expected near thunderstorms late in the afternoon. Mixing height.......12200 ft AGL increasing to 13400 ft AGL late in the afternoon. Transport winds.....Northwest 29 to 38 mph decreasing to 18 to 23 mph late in the morning. Smoke dispersal.....Good (85000 knot-ft) early in the morning increasing to excellent (168200 knot-ft) in the afternoon increasing to excellent (186400 knot-ft) late in the afternoon. Haines Index........2 to 4 or very low to low potential for large plume dominated fire growth. TIME (MDT) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky (%).........25 25 26 27 28 29 28 28 27 28 29 Weather cov..... SCH SCH SCH SCH SCH SCH Weather type.... RW RW RW RW RW RW Tstm cov........ SCH SCH SCH CWR.............0 0 0 0 0 0 0 0 0 0 0 LAL.............1 1 1 1 1 1 1 1 2 2 2 Temp............52 55 58 62 66 70 71 72 73 72 71 RH..............59 55 49 43 36 30 28 26 24 25 26 20 FT wind dir..W NW NW NW NW NW NW NW NW NW NW 20 FT wind spd..16 17 17 20 21 23 23 23 22 21 20 20 FT wind gust.24 25 28 30 33 35 36 35 35 33 31 Mix hgt (kft)...2.6 3.0 3.8 5.4 7.2 8.9 9.7 10 11 12 13 Transp wind dir.NW NW NW NW NW NW NW W W W W Transp wind spd.38 36 33 29 23 20 18 18 20 21 23 Haines index....2 2 2 2 2 4 4 4 4 4 4 SDspl kt-ft/100085 93 109 132 148 153 157 168 186 224 262 .SUNDAY NIGHT... Sky/weather.........Mostly clear (15-25 percent). CWR.................1 percent. LAL.................1. Min temperature.....Around 43. Max humidity........89 percent. Wind (20 ft)........Northwest winds 10 to 18 mph decreasing to 6 to 8 mph in the late evening and overnight. Mixing height.......4200 ft AGL decreasing to 900 ft AGL in the late evening and overnight. Transport winds.....Northwest 24 to 25 mph decreasing to around 14 mph. Smoke dispersal.....Excellent (230000 knot-ft) decreasing to fair (54100 knot-ft) early in the evening decreasing to poor (11600 knot-ft) late in the night. Haines Index........2 to 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 (%).........30 27 23 20 17 13 10 9 8 7 6 5 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............70 66 63 59 56 53 51 49 48 46 44 43 RH..............26 32 38 45 53 61 68 74 77 83 86 89 20 FT wind dir..NW NW NW NW NW NW NW NW NW NW NW W 20 FT wind spd..18 15 13 10 8 7 6 6 6 6 6 6 20 FT wind gust.30 25 22 18 16 15 13 12 10 9 9 9 Mix hgt (kft)...13 11 7.3 4.2 3.2 3.0 3.0 2.4 1.8 1.3 1.1 0.9 Transp wind dir.W NW NW N N NW NW NW NW NW NW NW Transp wind spd.24 24 25 24 24 23 21 20 17 16 15 14 Haines index....2 2 2 2 2 2 3 3 3 3 3 3 SDspl kt-ft/1000276 230 157 90 66 59 54 40 27 18 14 12 .MEMORIAL DAY... Sky/weather.........Sunny (0-10 percent). CWR.................0 percent. LAL.................1. Max temperature.....Around 78. Min humidity........22 percent. Wind (20 ft)........Northwest winds 6 to 8 mph shifting to the north around 8 mph late in the afternoon. Mixing height.......10700 ft AGL. Transport winds.....Northwest 9 to 18 mph increasing to 20 to 21 mph in the afternoon. Smoke dispersal.....Poor (5500 knot-ft) early in the morning increasing to good (77400 knot-ft) in the afternoon increasing to very good (112500 knot-ft) early in the morning increasing to excellent (191800 knot-ft) in the afternoon in the afternoon. Haines Index........2 to 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 (%).........4 4 3 3 3 2 2 2 3 3 3 4 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............44 48 53 60 65 69 72 74 76 77 78 78 RH..............82 71 61 47 40 33 30 27 25 24 22 22 20 FT wind dir..W W NW NW NW NW NW NW NW N N N 20 FT wind spd..6 6 6 6 6 6 6 6 7 8 8 8 20 FT wind gust.10 10 10 10 10 10 10 10 12 13 14 14 Mix hgt (kft)...0.9 1.1 1.8 2.7 4.0 5.5 7.0 8.7 10 11 10 9.0 Transp wind dir.NW W NW NW NW NW NW NW NW NW NW NW Transp wind spd.14 9 10 12 14 16 18 20 21 21 21 20 Haines index....3 3 3 3 3 3 2 2 2 2 2 2 SDspl kt-ft/10006 9 16 27 48 77 113 148 181 192 185 154 $$ Forecaster...Woodward Requested by...Nathan Flowers Type of request...PRESCRIBED .TAG 2414948.1/CYS .DELDT 05/24/24 .FormatterVersion 2.0.0 .EMAIL firedept@gering.org