--------------------------------------------------------------------------- FWF Combo Report generated using the latest Fire Weather Forecasts issued by PBZ/CTP at *** 1:14pm *** on Thursday September 18, 2025. --------------------------------------------------------------------------- Fire Weather Planning Forecast National Weather Service Pittsburgh PA 114 PM EDT Thu Sep 18 2025 .Discussion... High pressure will remain in place across the area through the period. This will mean, mainly clear skies across the area. This, along with light and variable winds will make for RH values dropping below 30% at times for the next 3 days. The only concern over the next few days will be due to low RH values. && Forest- Including the city of Tionesta 114 PM EDT Thu Sep 18 2025 Tonight Fri Fri Night Sat Cloud Cover Mclear Pcldy Mclear Mclear Precip Type None None None None Chance Precip (%) 0 0 0 0 Chance of Thunder (%) 0 0 0 0 Temp (24h trend) 54 (+5) 79 (-3) 48 78 RH % (24h trend) 100 (+5) 43 (+9) 85 34 20ft Wnd-Val/AM(mph) Lgt/Var Lgt/Var 20ft Wnd-Rdg/PM(mph) Lgt/Var N 5 Lgt/Var Lgt/Var Precip Amount 0.00 0.00 0.00 0.00 Precip Duration Precip Begin Precip End Mixing Hgt(m-agl/msl) 1430 1620 Mixing Hgt(ft-agl/msl) 4690 5300 Transport Wnd (mph) NW 13 SE 8 Vent Rate (kt-ft) 51590 37100 Dispersion 4 3 ADI early 5 Very Poor 23 Fair 5 Very Poor 20 Gen Poor ADI late 3 Very Poor 66 Good 5 Very Poor 47 Gen Good Max LVORI early 4 8 4 4 Max LVORI late 6 2 5 2 Remarks: ADI is Atmospheric Dispersion Index by Lavdas. LVORI is Low Visibility Occurrence Risk Index. .FORECAST FOR DAYS 3 THROUGH 7... .SUNDAY...Partly cloudy. Lows in the lower 60s. Highs in the lower 80s. Southeast winds around 5 mph. .MONDAY...Mostly cloudy. A chance of showers. Lows in the lower 60s. Highs in the lower 80s. South winds 5 to 10 mph. .TUESDAY...Mostly cloudy. A chance of showers. Lows in the lower 60s. Highs in the lower 80s. Southwest winds 5 to 10 mph. .WEDNESDAY...Mostly cloudy. A chance of showers. Lows around 60. Highs in the upper 70s. Southwest winds around 5 mph. .THURSDAY...Mostly cloudy. Lows in the upper 50s. Highs in the upper 70s. Southeast winds around 5 mph. $$ --------------------------------------------------------------------------- Fire Weather Planning Forecast for Central Pennsylvania National Weather Service State College, PA 1209 PM EDT Thu Sep 18 2025 .DISCUSSION... The final days of summer 2025 will feature above average temperatures, 30-50% minimum RH, light wind, and expanding drought conditions. && Warren- Including the city of Warren 1209 PM EDT Thu Sep 18 2025 Tonight Fri Fri Night Sat Cloud Cover Mclear Pcldy Mclear Mclear Precip Type None None None None Chance Precip (%) 0 0 0 0 Chance of Thunder (%) 0 0 0 0 Temp (24h trend) 54 (+4) 77 (-4) 45 78 RH % (24h trend) 100 (+1) 43 (+6) 89 33 20ftWnd-Val/AM(mph) Lgt/Var Lgt/Var 20ftWnd-Rdg/PM(mph) Lgt/Var N 5 Lgt/Var Lgt/Var Precip Amount 0.00 0.00 0.00 0.00 Precip Duration Precip Begin Precip End Mixing Hgt(ft-agl) 300 3970 330 4940 Transport Wnd (mph) NW 7 NW 12 E 9 SE 8 Vent Rate (kt-ft) 1800 39700 2640 34580 Dispersion 1 5 1 5 DSI 2 2 Sunshine Hours 9 9 Max ADI Early 5 Very Poor 18 Gen Poor 5 Very Poor 16 Gen Poor Max ADI Late 3 Very Poor 30 Fair 4 Very Poor 24 Fair Max LVORI Early 5 9 5 4 Max LVORI Late 9 2 5 2 Remarks: ADI is Atmospheric Dispersion Index by Lavdas. LVORI is Low Visibility Occurrence Risk Index. .FORECAST FOR DAYS 3 THROUGH 7... .SUNDAY...Partly cloudy. Lows in the mid 50s. Highs around 80. Minimum RH 49 percent. South winds 5 to 10 mph. .MONDAY...Mostly cloudy with a chance of showers. Lows in the upper 50s. Highs in the upper 70s. Minimum RH 58 percent. South winds 5 to 10 mph. .TUESDAY...Mostly cloudy. Showers likely. Lows in the upper 50s. Highs in the upper 70s. Minimum RH 60 percent. Southwest winds around 5 mph. .WEDNESDAY...Mostly cloudy. A chance of showers. Lows in the upper 50s. Highs in the upper 70s. Minimum RH 58 percent. Southwest winds around 5 mph. .THURSDAY...Mostly cloudy. Lows in the mid 50s. Highs in the mid 70s. Minimum RH 57 percent. Southeast winds around 5 mph. $$ McKean- Including the city of Bradford 1209 PM EDT Thu Sep 18 2025 Tonight Fri Fri Night Sat Cloud Cover Mclear Pcldy Mclear Mclear Precip Type None None None None Chance Precip (%) 0 0 0 0 Chance of Thunder (%) 0 0 0 0 Temp (24h trend) 51 (+4) 76 (-4) 41 75 RH % (24h trend) 100 (+2) 41 (+5) 88 29 20ftWnd-Val/AM(mph) Lgt/Var Lgt/Var 20ftWnd-Rdg/PM(mph) Lgt/Var N 5 Lgt/Var Lgt/Var Precip Amount 0.00 0.00 0.00 0.00 Precip Duration Precip Begin Precip End Mixing Hgt(ft-agl) 300 3910 330 4580 Transport Wnd (mph) NW 7 NW 12 E 9 SE 8 Vent Rate (kt-ft) 1800 39100 2640 32060 Dispersion 1 5 1 5 DSI 1 2 Sunshine Hours 9 9 Max ADI Early 5 Very Poor 18 Gen Poor 4 Very Poor 16 Gen Poor Max ADI Late 3 Very Poor 31 Fair 4 Very Poor 23 Fair Max LVORI Early 4 9 5 4 Max LVORI Late 8 2 5 2 Remarks: ADI is Atmospheric Dispersion Index by Lavdas. LVORI is Low Visibility Occurrence Risk Index. .FORECAST FOR DAYS 3 THROUGH 7... .SUNDAY...Mostly cloudy. Lows around 50. Highs in the mid 70s. Minimum RH 53 percent. South winds 5 to 10 mph. .MONDAY...Mostly cloudy. A chance of showers. Lows in the mid 50s. Highs in the upper 70s. Minimum RH 54 percent. South winds 5 to 10 mph. .TUESDAY...Mostly cloudy. A chance of showers. Lows in the mid 50s. Highs in the mid 70s. Minimum RH 59 percent. Southwest winds around 5 mph. .WEDNESDAY...Mostly cloudy. A chance of showers. Lows in the mid 50s. Highs in the mid 70s. Minimum RH 56 percent. Southwest winds around 5 mph. .THURSDAY...Mostly cloudy. Lows in the lower 50s. Highs in the lower 70s. Minimum RH 58 percent. Southeast winds around 5 mph. $$ Elk- Including the cities of St. Marys and Ridgway 1209 PM EDT Thu Sep 18 2025 Tonight Fri Fri Night Sat Cloud Cover Mclear Mclear Mclear Mclear Precip Type None None None None Chance Precip (%) 0 0 0 0 Chance of Thunder (%) 0 0 0 0 Temp (24h trend) 52 (+4) 80 (-2) 45 77 RH % (24h trend) 100 (+7) 39 (+6) 84 34 20ftWnd-Val/AM(mph) Lgt/Var Lgt/Var 20ftWnd-Rdg/PM(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var Precip Amount 0.00 0.00 0.00 0.00 Precip Duration Precip Begin Precip End Mixing Hgt(ft-agl) 260 4830 340 4870 Transport Wnd (mph) NW 7 NW 13 E 9 SE 8 Vent Rate (kt-ft) 1560 53130 2720 34090 Dispersion 1 5 1 5 DSI 2 2 Sunshine Hours 10 9 Max ADI Early 5 Very Poor 18 Gen Poor 5 Very Poor 16 Gen Poor Max ADI Late 3 Very Poor 38 Fair 5 Very Poor 24 Fair Max LVORI Early 3 8 4 4 Max LVORI Late 6 2 4 2 Remarks: ADI is Atmospheric Dispersion Index by Lavdas. LVORI is Low Visibility Occurrence Risk Index. .FORECAST FOR DAYS 3 THROUGH 7... .SUNDAY...Mostly cloudy. Lows in the mid 50s. Highs in the mid 70s. Minimum RH 56 percent. Southeast winds 5 to 10 mph. .MONDAY...Mostly cloudy. A chance of showers. Lows in the upper 50s. Highs in the upper 70s. Minimum RH 54 percent. South winds 5 to 10 mph. .TUESDAY...Mostly cloudy. A chance of showers. Lows in the upper 50s. Highs in the upper 70s. Minimum RH 58 percent. Southwest winds around 5 mph. .WEDNESDAY...Mostly cloudy. A chance of showers. Lows in the mid 50s. Highs in the upper 70s. Minimum RH 56 percent. Southwest winds around 5 mph. .THURSDAY...Mostly cloudy. Lows in the mid 50s. Highs in the lower 70s. Minimum RH 58 percent. Southeast winds around 5 mph. $$ --------------------------------------------------------------------------- .OUTLOOK 8 TO 14 DAYS... Temperatures above normal. Precipitation near normal. --------------------------------------------------------------------------- .END