FNUS74 KAMA 171324 FWSAMA Spot Forecast for Sanford-Yake Rx...NPS National Weather Service Amarillo TX 824 AM CDT Wed Apr 17 2024 Forecast is based on ignition time of 0900 CDT on April 17. If conditions become unrepresentative...contact the National Weather Service. Please contact our office at (806) 335-1421, if you have questions or concerns with this forecast. .DISCUSSION...Dry and fair weather through today. RH near to the water will be roughly 5% higher than the immediate surrounding valley. Winds are light and variable this morning but will pick up a SW to at times WSW direction this afternoon. A cold front passes through burn area mid morning (likely 7-9 am) on Thursday. This will shift winds sharply to the N and bring breezy and gusty winds to the fire area. The passage of the cold front will bring higher RH to the fire area. .REST OF TODAY... Sky/weather.........Sunny (0-10 percent). Chance of pcpn......0 percent. LAL.................No Tstms. Max temperature.....Around 87. Min humidity........11 percent. Wind (20 ft)........Variable winds around 5 mph shifting to the southwest 6 to 14 mph with gusts to 25 mph by afternoon. Mixing height.......9900 ft AGL. Transport winds.....East around 7 mph shifting to the south around 6 mph late in the morning, then shifting to the west 7 to 13 mph late in the morning increasing to 17 to 23 mph late in the afternoon. Smoke dispersal.....Poor (4300 knot-ft) early in the morning increasing to excellent (76300 knot-ft) in the afternoon increasing to excellent (134100 knot-ft) late in the afternoon. Haines Index........5 or moderate potential for large plume dominated fire growth. TIME (CDT) 9 AM 11 AM 1 PM 3 PM 5 PM Sky cover.......MCLEAR CLEAR CLEAR CLEAR CLEAR Weather cov..... Weather type....NONE NONE NONE NONE NONE Tstm cov........ Chc of pcpn (%).0 0 0 0 0 LAL.............1 1 1 1 1 Temp............57 67 76 81 83 RH..............57 37 26 19 15 20 ft wind......E 5 SW 6 SW 8 SW 13 SW 14 20 ft wind gust.6 8 12 16 19 Mix hgt (kft)...0.7 2.0 4.3 8.9 9.9 Transport wind..E 7 SW 7 W 9 W 17 W 23 Haines index....5 5 5 5 5 Vrate kt-ft/1K..4 12 35 134 199 Ventrate Cat....POOR POOR POOR VYGD EXNT .TONIGHT... Sky/weather.........Clear (0-10 percent). Chance of pcpn......0 percent. LAL.................No Tstms. Min temperature.....Around 53. Max humidity........69 percent. Wind (20 ft)........Southwest winds 9 to 14 mph. Mixing height.......500 ft AGL. Transport winds.....West 12 to 17 mph decreasing to around 12 mph. Smoke dispersal.....Excellent (118600 knot-ft) decreasing to poor (6100 knot-ft) early in the evening. Haines Index........5 or moderate potential for large plume dominated fire growth. TIME (CDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM Sky cover.......CLEAR CLEAR CLEAR CLEAR CLEAR CLEAR Weather cov..... Weather type....NONE NONE NONE NONE NONE NONE Tstm cov........ Chc of pcpn (%).0 0 0 0 0 0 LAL.............1 1 1 1 1 1 Temp............83 80 71 67 65 61 RH..............14 17 23 25 28 31 20 ft wind......SW 14 SW 9 S 9 SW 12 SW 12 SW 9 20 ft wind gust.19 13 14 15 13 12 Mix hgt (kft)...9.6 0.6 0.5 0.5 0.5 0.5 Transport wind..W 23 SW 13 S 18 SW 20 W 17 W 16 Haines index....5 5 5 5 5 5 Vrate kt-ft/1K..192 6 8 8 7 7 Ventrate Cat....EXNT POOR POOR POOR POOR POOR .THURSDAY... Sky/weather.........Sunny (10-20 percent) then becoming mostly sunny (35-45 percent). Chance of pcpn......0 percent. LAL.................No Tstms. Max temperature.....Around 61. Min humidity........31 percent. Wind (20 ft)........West winds around 10 mph shifting to the north 14 to 20 mph gusts to 30 mph, then shifting to the northeast around 11 to 14 mph gusts to 23 mph late in the afternoon. Mixing height.......3900 ft AGL. Transport winds.....North 17 to 26 mph shifting to the northeast around 16 mph late in the afternoon. Smoke dispersal.....Poor (8000 knot-ft) early in the morning increasing to excellent (61800 knot-ft) in the afternoon. Haines Index........4 to 5 or low to moderate potential for large plume dominated fire growth. TIME (CDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM Sky cover.......CLEAR MCLEAR MCLDY PCLDY MCLEAR MCLEAR Weather cov..... Weather type....NONE NONE NONE NONE NONE NONE Tstm cov........ Chc of pcpn (%).0 0 0 0 0 0 LAL.............1 1 1 1 1 1 Temp............57 54 53 56 58 60 RH..............38 61 69 61 56 51 20 ft wind......W 10 N 15 N 20 N 20 NE 17 NE 14 20 ft wind gust.16 21 23 23 22 20 Mix hgt (kft)...0.5 2.0 2.5 3.0 3.5 3.9 Transport wind..N 17 N 24 N 26 N 23 N 20 NE 16 Haines index....5 4 4 4 5 5 Vrate kt-ft/1K..8 41 58 60 60 55 Ventrate Cat....POOR FAIR FAIR GOOD FAIR FAIR $$ Forecaster...Hannah Requested by...Jason McDaniel Type of request...PRESCRIBED .TAG 2411215.0/AMA .DELDT 04/17/24 .FormatterVersion 2.0.0