616 FNUS73 KJKL 312140 AAA FWSJKL Spot Forecast for Hurricane Fire...UPDATED National Weather Service Jackson, KY 540 PM EDT Thu Mar 31 2022 Forecast is based on forecast start time of 1800 EDT on March 31. If conditions become unrepresentative...contact the National Weather Service. .DISCUSSION...As a cold front continues to move across eastern Kentucky, westerly winds are expected through the rest of this afternoon in the 10 to 20 mph range with some gusts between 25 and 30 mph. Relative humidity will be higher than on Wednesday, and should remain at or above 50 percent into the evening. A weak system will lead to a chance for showers tonight and early on Friday. However, rainfall will be very light, with only a few hundredths of an inch expected. .TONIGHT... Sky/weather.........Mostly cloudy. Sprinkles possible early. A chance of rain showers in the night. Chance of pcpn......50 percent. LAL.................1. Temperature.........55 at forecast start...Min 35. RH..................55 percent at forecast start...Max 85 percent. Dewpoint............37 decreasing to 35 late. Min apparent temp...33. Wind (20 ft)........Winds west at 9 mph at forecast start... otherwise west winds 6 to 10 mph. Gusts up to 24 mph in the evening. Ridgetop wind.......West 7 to 13 mph. Mixing height.......4200 ft AGL at forecast start...otherwise 2500-4200 ft AGL decreasing to 2200-2400 ft AGL late in the evening. Transport winds.....West 21 to 30 mph decreasing to 14 to 20 mph late. Ventilation rate....Good to excellent (64400-108300 knot-ft) decreasing to poor to good (28500-54300 knot-ft) late. LVORI...............3. ADI.................84 decreasing to 31 in the evening. Haines Index........2 very low potential for large plume dominated fire growth at forecast start...max 3. TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM Sky (%).........66 52 63 65 75 84 80 83 69 86 89 77 Weather cov..... SCH SCH CHC CHC CHC CHC CHC CHC CHC SCH Weather type.... RW RW RW RW RW RW RW RW RW RW Tstm cov........ Chc of pcpn (%).10 10 10 10 30 50 40 30 30 30 30 20 LAL.............1 1 1 1 1 1 1 1 1 1 1 1 Temp............55 52 51 49 48 46 44 43 42 41 40 39 Dewpoint........39 37 35 35 34 35 36 36 35 35 35 34 RH..............55 56 54 58 58 65 73 76 76 79 82 82 Aparnt tmp (F)..55 52 51 46 45 42 40 39 38 36 35 33 20 FT wind dir..W W W W W W W W W W W W 20 FT wind spd..9 8 6 6 6 6 6 5 5 6 6 6 20 FT wind gust.19 18 14 13 12 12 11 11 11 10 11 11 Ridge wind dir..W W W W W W W W W W W W Ridge wind spd..13 12 9 9 8 8 8 7 7 8 8 9 Mix hgt (kft)...4.2 3.6 3.4 3.1 2.5 2.2 2.2 2.3 2.4 2.3 2.3 2.2 Transp wind dir.SW W W W W W W W W W W W Transp wind spd.30 26 22 21 20 18 16 15 14 15 16 18 LVORI...........1 1 2 2 2 3 3 4 4 4 4 3 ADI.............84 35 29 27 13 12 11 10 9 10 11 25 Haines index....2 2 2 2 3 3 3 3 3 3 3 3 VRate kt-ft/1000108 82 64 54 42 35 32 30 29 30 33 35 .FRIDAY... Sky/weather.........Mostly cloudy then becoming mostly sunny. Sprinkles or flurries possible. Chance of pcpn......10 percent. LAL.................1. Temperature.........Max 52. RH..................Min 28 percent. Dewpoint............31 decreasing to 22. Min apparent temp...28. Wind (20 ft)........West winds 6 to 9 mph. Gusts up to 22 mph in the afternoon. Ridgetop wind.......West 8 to 12 mph. Mixing height.......2000-2800 ft AGL increasing to 4600-5400 ft AGL in the afternoon. Transport winds.....West 14 to 22 mph. Ventilation rate....Marginal to good (33700-50700 knot-ft) increasing to good to excellent (61200-102800 knot-ft) in the afternoon. LVORI...............3. ADI.................26 increasing to 66 in the afternoon. Haines Index........2 to 3 OR very low potential for large plume dominated fire growth. TIME (EDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM Sky (%).........71 84 90 88 60 45 Weather cov.....S CHC S CHC Weather type....RNSHWR RNSN NONE NONE NONE NONE Tstm cov........ Chc of pcpn (%).10 10 10 0 0 0 LAL.............1 1 1 1 1 1 Temp............38 35 37 41 45 51 Dewpoint........33 31 29 26 23 22 RH..............82 85 72 55 41 32 Aparnt tmp (F)..32 28 30 35 40 51 20 ft wind......W 6 W 7 W 8 W 8 W 7 W 6 20 ft wind gust.11 11 13 16 18 14 Ridgetop wind...W 9 W 10 W 12 W 12 W 10 W 9 Mix hgt (ft)....2200 2000 4600 5400 5400 5200 Transport wind..W 20 W 20 W 22 W 21 W 18 W 15 LVORI...........3 4 3 1 1 1 ADI.............26 37 63 67 58 65 Haines index....3 2 2 2 2 2 VRate kt-ft/100036 34 85 100 87 70 .FRIDAY NIGHT... Sky/weather.........Mostly clear. Chance of pcpn......0 percent. LAL.................1. Temperature.........Min 31. RH..................Max 81 percent. Dewpoint............23 increasing to 26 late in the evening. Min apparent temp...32. Wind (20 ft)........Northwest winds around 6 mph early in the evening becoming light. Ridgetop wind.......Northwest 2 to 8 mph shifting to the southeast around 2 mph late. Mixing height.......2500-4400 ft AGL decreasing to 100-1900 ft AGL late. Transport winds.....Northwest 6 to 12 mph shifting to the southeast 2 to 3 mph late. Ventilation rate....Poor to fair (200-46200 knot-ft). LVORI...............3. ADI.................47 decreasing to 3. Haines Index........2 to 4 OR very low potential for large plume dominated fire growth to low potential for large plume dominated fire growth. TIME (EDT) 6 PM 9 PM MIDNGT 3 AM Sky (%).........17 11 4 5 Weather cov..... Weather type....NONE NONE NONE NONE Tstm cov........ Chc of pcpn (%).0 0 0 0 LAL.............1 1 1 1 Temp............51 43 37 33 Dewpoint........21 24 26 26 RH..............30 47 64 75 Aparnt tmp (F)..51 43 37 33 20 FT wind......NW 6G10 NW 2G4 E 1G2 SE 1G2 Ridgetop wind...NW 8 NW 3 E 2 SE 2 Mix hgt (ft)....4400 1900 100 100 Transport wind..W 12 NW 6 E 2 E 2 LVORI...........1 2 3 4 ADI.............47 3 1 1 Haines index....2 2 3 4 VRate kt-ft/100046 10 0 0 .SATURDAY... Sky/weather.........Mostly sunny. Chance of pcpn......0 percent. LAL.................1. Temperature.........Max 62. RH..................Min 25 percent. Dewpoint............27. Min apparent temp...31. Wind (20 ft)........Light winds becoming southwest 5 to 7 mph in the afternoon. Ridgetop wind.......Southwest 2 to 9 mph. Mixing height.......100-1900 ft AGL increasing to 4700-4900 ft AGL. Transport winds.....South 2 to 8 mph increasing to southwest 12 to 20 mph late in the morning. Ventilation rate....Poor to good (100-50000 knot-ft) increasing to good (60000-83800 knot-ft) early in the afternoon. LVORI...............3. ADI.................3 increasing to 59. Haines Index........2 to 5 OR very low potential for large plume dominated fire growth to moderate potential for large plume dominated fire growth. TIME (EDT) 6 AM 10 AM 2 PM Sky (%).........14 35 63 Weather cov..... Weather type....NONE NONE NONE Tstm cov........ Chc of pcpn (%).0 0 0 LAL.............1 1 1 Temp............31 43 59 Dewpoint........26 28 28 RH..............81 55 30 Aparnt tmp (F)..31 41 59 20 FT wind......SE 1G4 S 3G7 SW 6G13 Ridgetop wind...SE 2 S 5 SW 8 Mix hgt (ft)....100 1900 4000 Transport wind..SE 2 S 8 SW 17 LVORI...........5 2 1 ADI.............1 20 48 Haines index....4 4 4 VRate kt-ft/10000 14 60 $$ Forecaster...GREIF Requested by...Mitchell Scates Type of request...WILDFIRE .TAG 2207706.2/JKL .DELDT 03/31/22 .EMAIL mitchell.scates@usda.gov