Spot Forecast
Issued by NWS Duluth, MN
Issued by NWS Duluth, MN
420 FNUS73 KDLH 060927 FWSDLH Spot Forecast for C unit...dnr National Weather Service Duluth MN 427 AM CDT Mon May 6 2024 Forecast is based on ignition time of 1000 CDT on May 06. If there are questions or concerns with this forecast, or if conditions become unrepresentative, contact the National Weather Service in Duluth at 218-729-0653. .DISCUSSION... Light southerly 20-foot winds early this morning increase by late morning and lead to increasing smoke dispersal values. Breezy southeasterly 20-foot and transport winds are expected this afternoon and evening at the fire site with minimum relative humidity dropping into the upper-30% range today. There is a 40% chance though that afternoon minimum RH does not drop below 40% at the fire site, but kept a bit lower in the forecast. A wetting rainfall is not expected at the fire site until early Tuesday morning that lasts into Tuesday afternoon. The best chance of thunderstorms producing gusty, erratic winds at the fire site is Tuesday afternoon. An isolated stronger thunderstorm could produce mall hail less than 1 inch in size. .REST OF TODAY... Sky/weather.........Mostly sunny (25-35 percent). Chance of pcpn......0 percent. LAL.................1. Max temperature.....Around 72. Min humidity........37 percent. Wind (20 ft)........Southeast winds 9 to 12 mph. Mixing height.......5200 ft AGL increasing to 5300 ft AGL late in the afternoon. Transport winds.....Southeast 17 to 22 mph. Smoke dispersal.....Good (49900 knot-ft) increasing to excellent (76400-98200 knot-ft) late in the morning. Haines Index........4 or low potential for large plume dominated fire growth. Pcpn amount.........0.00 inches. TIME (CDT) 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky cover.......MCR MCR PC PC PC PC PC PC Chc of pcpn (%).0 0 0 0 0 0 0 0 LAL.............1 1 1 1 1 1 1 1 Temp............62 65 67 70 71 72 72 71 RH..............52 45 40 41 38 37 37 38 20 FT wind dir..SE SE SE SE SE SE SE SE 20 FT wind spd..9 10 10 11 11 11 11 11 20 FT wind gust.14 15 16 16 16 18 18 18 Mix hgt (kft)...3.3 4.8 5.0 5.2 5.3 5.1 5.2 4.9 Transp wind dir.S S S S SE SE SE SE Transp wind spd.17 18 20 20 21 21 22 22 Haines index....4 4 4 4 4 4 4 4 SDspl kt-ft/100050 76 84 88 96 92 98 94 .TONIGHT... Sky/weather.........Mostly cloudy (60-70 percent). Chance of rain showers and thunderstorms after 3 am. Chance of pcpn......50 percent. LAL.................1 until 0300, then 2. Min temperature.....Around 53. Max humidity........83 percent. Wind (20 ft)........Southeast winds 12 to 16 mph with gusts to around 25 mph. Gusty and erratic winds expected near thunderstorms after 3 am. Mixing height.......4400 ft AGL decreasing to 1700 ft AGL. Transport winds.....Southeast 14 to 23 mph. Smoke dispersal.....Excellent (87900 knot-ft) decreasing to poor to fair (8100-26000 knot-ft). Haines Index........3 to 4 or very low to low potential for large plume dominated fire growth. Pcpn amount.........0.03 inches. TIME (CDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM Sky cover.......MCLDY MCLDY PCLDY MCLDY MCLDY MCLDY Weather cov..... CHC Weather type....NONE NONE NONE NONE NONE RNSHWR Tstm cov........ CHC Chc of pcpn (%).10 0 0 10 10 30 LAL.............1 1 1 1 1 2 Temp............71 65 60 57 55 54 RH..............34 41 49 59 64 64 20 ft wind......SE 11 SE 11 E 12 SE 13 SE 15 SE 16 20 ft wind gust.18 18 20 22 23 25 Mix hgt (ft)....4400 900 800 900 1000 1000 Transport wind..SE 23 SE 15 SE 15 SE 16 SE 18 SE 21 Haines index....4 4 4 4 3 3 SDspl kt-ft/100088 11 10 13 16 19 .TUESDAY... Sky/weather.........Mostly cloudy (80-90 percent). Slight chance of thunderstorms in the morning. Rain showers through the day. Chance of thunderstorms in the afternoon. Chance of pcpn......100 percent. LAL.................2 until 1000, then 1 until 1600, then 3. Max temperature.....Around 65. Min humidity........63 percent. Wind (20 ft)........Southeast winds 9 to 16 mph. Gusts up to 28 mph in the morning. Gusty and erratic winds expected near thunderstorms. Mixing height.......2900 ft AGL. Transport winds.....Southeast 13 to 22 mph. Smoke dispersal.....Fair to good (22400-35000 knot-ft). Haines Index........3 or very low potential for large plume dominated fire growth. Pcpn amount.........0.75 inches. TIME (CDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM Sky cover.......MCLDY CLOUDY CLOUDY MCLDY MCLDY MCLDY Weather cov.....LIKELY DEFNTE DEFNTE DEFNTE LIKELY CHANCE Weather type....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR Tstm cov........S CHC S CHC CHANCE Chc of pcpn (%).70 90 100 80 60 50 LAL.............2 2 1 1 1 3 Temp............53 53 56 60 63 65 RH..............71 80 77 75 72 65 20 ft wind......SE 16 SE 15 SE 12 SE 11 SE 10 SE 10 20 ft wind gust.25 23 20 18 15 14 Mix hgt (ft)....1300 1500 1500 1600 2000 2900 Transport wind..SE 22 SE 21 SE 20 SE 18 SE 15 SE 14 Haines index....3 3 3 3 3 3 SDspl kt-ft/100024 28 26 25 27 35 $$ Forecaster...Nathan Requested by...ks Type of request...PRESCRIBED .TAG 2413217.0/DLH .DELDT 05/06/24 .FormatterVersion 2.0.0 .EMAIL karl.sieve@state.mn.us