Spot Forecast
Issued by NWS Duluth, MN
Issued by NWS Duluth, MN
906 FNUS73 KDLH 192055 FWSDLH Spot Forecast for Grant-Hope Lakes Rx...USFS National Weather Service Duluth MN 355 PM CDT Thu Sep 19 2024 Forecast is based on ignition time of 1700 CDT on September 19. 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... Scattered showers and storms tonight expected to bring around a tenth of an inch of rainfall this evening, with a reasonable "worst case" scenario of around a half inch of rainfall depending on the track and evolution of individual showers and storms. The probability for receiving a quarter inch or more of rainfall is 35 percent. (Conversely, the probability of receiving LESS than quarter inch at the incident site is 65 percent.) On Friday morning some patch morning fog is possibly, otherwise skies will start partly cloudy but clearing out by late morning with sunny skies in the afternoon. Winds will be out of the west- southwest around 10 mph with a few gusts to 15 mph. Relative humidity values will fall around to 45 to 50 percent in the afternoon. Smoke dispersal will be good through the afternoon. .TONIGHT... Sky/weather.........Mostly cloudy (65-75 percent) then becoming partly cloudy (40-50 percent). Showers and thunderstorms likely in the evening, then slight chance of showers and thunderstorms overnight. Patchy fog early in the morning. Chance of pcpn......60 percent. LAL.................3 until 1900, then 4 until 2100, then 5 until 2200, then 3 until 2400, then 2 until 0100, then 1. Min temperature.....Around 57. Max humidity........100 percent. Wind (20 ft)........South winds 5 to 8 mph with gusts to around 21 mph in the evening and overnight becoming light. Gusty and erratic winds expected near thunderstorms. Mixing height.......1200 ft AGL. Transport winds.....South 10 to 17 mph. Haines Index........4 or low potential for large plume dominated fire growth. Pcpn amount.........0.15 inches. TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM Sky cover.......MC MC MC MC MC CDY MC MC MC PC PC PC Weather cov.....CHC CHC CHC LKY CHC CHC SCH PTY Weather type....RW RW RW RW RW RW RW FOG Tstm cov........CHC CHC CHC LKY CHC CHC SCH Chc of pcpn (%).40 50 50 60 40 30 20 10 10 10 10 0 LAL.............3 4 4 5 3 3 2 1 1 1 1 1 Temp............76 74 69 67 64 63 63 62 63 62 62 60 RH..............71 77 90 93 100 100 100 100 97 100 93 99 20 FT wind dir..S S S S S S S S S S S SW 20 FT wind spd..8 7 7 6 6 5 5 4 4 3 3 3 20 FT wind gust.21 19 19 18 16 16 14 14 13 13 13 12 Mix hgt (kft)...1.2 0.6 0.5 0.5 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.5 Transp wind dir.S S S S S S S S S SW SW SW Transp wind spd.17 16 16 17 17 15 14 12 12 12 12 10 Haines index....4 4 4 4 4 4 4 4 4 4 4 4 .FRIDAY... Sky/weather.........Sunny (15-25 percent). Patchy fog early in the morning. Chance of pcpn......0 percent. LAL.................1. Max temperature.....Around 76. Min humidity........53 percent. Wind (20 ft)........Light winds becoming west 5 to 7 mph in the late morning and afternoon. Mixing height.......2200 ft AGL increasing to 4600 ft AGL in the afternoon. Transport winds.....West 10 to 17 mph. Haines Index........3 to 4 or very low to low potential for large plume dominated fire growth. Pcpn amount.........0.00 inches. TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky cover.......PC PC PC MCR MCR MCR MCR MCR MCR MCR MCR CLR Weather cov.....PTY PTY Weather type....FOG FOG Tstm cov........ Chc of pcpn (%).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............59 59 58 62 65 68 70 72 73 74 75 74 RH..............100 95 100 97 86 77 69 63 59 58 53 56 20 FT wind dir..SW SW SW SW W W W W W W W W 20 FT wind spd..3 3 3 4 5 5 6 7 6 6 6 5 20 FT wind gust.11 11 12 13 14 14 15 16 16 15 14 14 Mix hgt (kft)...0.4 0.5 0.7 1.1 1.3 2.2 3.3 3.8 4.4 4.5 4.6 3.9 Transp wind dir.SW W W W W W W W W W W W Transp wind spd.12 10 10 12 13 14 17 17 16 16 16 14 Haines index....4 3 3 3 3 3 3 3 3 3 3 3 $$ Forecaster...Joe Requested by...Joanie Lawrence Type of request...PRESCRIBED .TAG 2422767.0/DLH .DELDT 09/19/24 .FormatterVersion 2.0.0 .EMAIL joan.lawrence@usda.gov