--------------------------------------------------------------------------- FWF Combo Report generated using the latest Fire Weather Forecasts issued by PBZ/CTP at *** 2:27pm *** on Friday September 18, 2026. --------------------------------------------------------------------------- Fire Weather Planning Forecast National Weather Service Pittsburgh PA 1200 PM EDT Fri Sep 18 2026 Forest- Including the city of Tionesta 1200 PM EDT Fri Sep 18 2026 Tonight Sat Sat Night Sun Cloud Cover Pcldy Pcldy Mcldy Mcldy Precip Type None None Tstms Tstms Chance Precip (%) 0 0 80 90 Chance of Thunder (%) 0 0 20 20 Temp (24h trend) 50 (-11) 72 (-2) 58 71 RH % (24h trend) 92 (-5) 55 (+1) 100 83 Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var Precip Amount 0.00 0.00 0.20 0.61 Precip Duration 2 11 Precip Begin 12 AM Continuing Precip End Continuing Continuing Mixing Hgt(m-agl/msl) 850 520 Mixing Hgt(ft-agl/msl) 2780 1710 Transport Wnd (mph) S 9 SW 13 Vent Rate (kt-ft) 22240 18810 Category Day 2 2 Inversion 7pm 55F/9am 6pm 62F/9am Dispersion 2 2 Max ADI Early 6 Very Poor 18 Gen Poor 8 Poor 25 Fair Max ADI Late 4 Very Poor 30 Fair 8 Poor 24 Fair Max LVORI Early 6 4 5 8 Max LVORI Late 6 2 8 5 Remarks...ADI is Atmospheric Dispersion Index by Lavdas. LVORI is Low Visibility Occurrence Risk Index. .FORECAST FOR DAYS 3 THROUGH 7... .MONDAY...Mostly cloudy with a chance of showers. Lows in the upper 50s. Highs in the upper 60s. North winds around 5 mph. .TUESDAY...Mostly cloudy with showers likely and a chance of thunderstorms. Lows in the upper 50s. Highs in the mid 60s. East winds 10 to 15 mph. .WEDNESDAY...Breezy. Mostly cloudy with showers likely. Lows in the mid 50s. Highs in the mid 60s. East winds 15 to 25 mph. .THURSDAY...Mostly cloudy with a chance of showers. Lows in the lower 50s. Highs in the upper 60s. East winds 15 to 20 mph. .FRIDAY...Mostly cloudy. Lows in the lower 50s. Highs in the upper 60s. North winds 5 to 10 mph. $$ --------------------------------------------------------------------------- Fire Weather Planning Forecast for Central Pennsylvania National Weather Service State College, PA 227 PM EDT Fri Sep 18 2026 .DISCUSSION... A mix of sun and clouds will be in place tonight into Saturday with isolated showers around. Dewpoints will decrease tonight giving way to a fall-like morning on Saturday with lows in the mid 40s to mid 50s. Clouds will increase and thicken up Saturday with periods of rain from later Saturday night into Sunday. A rainy pattern will settle in next week with up to several inches of rain possible by next Friday. && Warren- Including the city of Warren 227 PM EDT Fri Sep 18 2026 Tonight Sat Sat Night Sun Cloud Cover Pcldy Pcldy Mcldy Mcldy Precip Type None None Tstms Showers Chance Precip (%) 0 0 80 80 Chance of Thunder (%) 0 0 20 0 Temp (24h trend) 48 (-9) 70 (-3) 55 69 RH % (24h trend) 93 (-7) 50 (-5) 100 84 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 0.26 0.48 Precip Duration 5 11 Precip Begin 6 PM Continuing Precip End Continuing Continuing Mixing Hgt(ft-agl) 430 3120 440 1790 Transport Wnd (mph) N 9 SE 8 SE 8 NE 10 Vent Rate (kt-ft) 3440 21840 3080 16110 Dispersion 2 5 2 5 DSI 2 Sunshine Hours 4 2 Max ADI Early 28 Fair 18 Gen Poor 9 Poor Max ADI Late 4 Very Poor 32 Fair 9 Poor Max LVORI Early 6 5 4 Max LVORI Late 6 2 4 Remarks: ADI is Atmospheric Dispersion Index by Lavdas. LVORI is Low Visibility Occurrence Risk Index. .FORECAST FOR DAYS 3 THROUGH 7... .MONDAY...Mostly cloudy with a chance of showers. Lows around 50. Highs in the mid 60s. Minimum RH 66 percent. Northeast winds around 5 mph. .TUESDAY...Cloudy with showers likely. Lows in the upper 40s. Highs around 60. Minimum RH 80 percent. East winds around 5 mph. .WEDNESDAY...Mostly cloudy with showers likely. Lows in the upper 40s. Highs in the lower 60s. Minimum RH 71 percent. East winds around 10 mph. .THURSDAY...Mostly cloudy with showers likely. Lows in the upper 40s. Highs in the mid 60s. Minimum RH 68 percent. Southeast winds 5 to 10 mph. .FRIDAY...Mostly cloudy. Lows in the upper 40s. Highs in the upper 60s. Minimum RH 61 percent. Northeast winds around 5 mph. $$ McKean- Including the city of Bradford 227 PM EDT Fri Sep 18 2026 Tonight Sat Sat Night Sun Cloud Cover Pcldy Pcldy Mcldy Mcldy Precip Type None None Tstms Showers Chance Precip (%) 0 0 80 90 Chance of Thunder (%) 0 0 20 0 Temp (24h trend) 45 (-11) 68 (-3) 52 67 RH % (24h trend) 95 (-5) 46 (-8) 100 85 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 0.25 0.58 Precip Duration 5 11 Precip Begin 8 PM Continuing Precip End Continuing Continuing Mixing Hgt(ft-agl) 430 2890 440 1570 Transport Wnd (mph) NE 10 SE 9 S 10 N 10 Vent Rate (kt-ft) 3870 23120 3960 14130 Dispersion 2 5 2 4 DSI 1 Sunshine Hours 4 1 Max ADI Early 27 Fair 18 Gen Poor 8 Poor Max ADI Late 4 Very Poor 31 Fair 8 Poor Max LVORI Early 6 5 4 Max LVORI Late 6 2 4 Remarks: ADI is Atmospheric Dispersion Index by Lavdas. LVORI is Low Visibility Occurrence Risk Index. .FORECAST FOR DAYS 3 THROUGH 7... .MONDAY...Mostly cloudy with a chance of showers. Lows in the upper 40s. Highs in the lower 60s. Minimum RH 66 percent. Northeast winds around 5 mph. .TUESDAY...Cloudy with showers likely. Lows in the mid 40s. Highs in the upper 50s. Minimum RH 79 percent. East winds 5 to 10 mph. .WEDNESDAY...Mostly cloudy with showers likely. Lows in the mid 40s. Highs in the upper 50s. Minimum RH 70 percent. East winds around 10 mph. .THURSDAY...Mostly cloudy with showers likely. Lows in the mid 40s. Highs in the lower 60s. Minimum RH 67 percent. East winds 5 to 10 mph. .FRIDAY...Mostly cloudy with a chance of showers. Lows in the mid 40s. Highs in the mid 60s. Minimum RH 59 percent. Northeast winds around 5 mph. $$ Elk- Including the cities of St. Marys and Ridgway 227 PM EDT Fri Sep 18 2026 Tonight Sat Sat Night Sun Cloud Cover Pcldy Pcldy Mcldy Mcldy Precip Type None None Showers Tstms Chance Precip (%) 0 0 80 90 Chance of Thunder (%) 0 0 0 20 Temp (24h trend) 45 (-14) 69 (-4) 54 69 RH % (24h trend) 94 (-6) 53 (-2) 100 88 20ftWnd-Val/AM(mph) Lgt/Var Lgt/Var 20ftWnd-Rdg/PM(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var Precip Amount 0.00 0.00 0.21 0.63 Precip Duration 5 12 Precip Begin 8 PM Continuing Precip End Continuing Continuing Mixing Hgt(ft-agl) 450 3030 440 1610 Transport Wnd (mph) E 8 SE 9 SE 8 NW 9 Vent Rate (kt-ft) 3150 24240 3080 12880 Dispersion 2 5 2 4 DSI 2 Sunshine Hours 5 1 Max ADI Early 23 Fair 18 Gen Poor 13 Gen Poor Max ADI Late 5 Very Poor 34 Fair 13 Gen Poor Max LVORI Early 6 5 3 Max LVORI Late 6 2 3 Remarks: ADI is Atmospheric Dispersion Index by Lavdas. LVORI is Low Visibility Occurrence Risk Index. .FORECAST FOR DAYS 3 THROUGH 7... .MONDAY...Mostly cloudy with a chance of showers. Lows in the lower 50s. Highs in the lower 60s. Minimum RH 70 percent. Northeast winds around 5 mph. .TUESDAY...Cloudy with showers likely. Lows in the upper 40s. Highs in the upper 50s. Minimum RH 84 percent. East winds around 10 mph. .WEDNESDAY...Mostly cloudy with showers likely. Lows in the mid 40s. Highs in the upper 50s. Minimum RH 76 percent. East winds around 10 mph. .THURSDAY...Mostly cloudy with showers likely. Lows in the mid 40s. Highs in the lower 60s. Minimum RH 71 percent. East winds 5 to 10 mph. .FRIDAY...Mostly cloudy with a chance of showers. Lows in the upper 40s. Highs in the mid 60s. Minimum RH 62 percent. Northeast winds around 5 mph. $$ --------------------------------------------------------------------------- .OUTLOOK 8 TO 14 DAYS... Temperatures near normal. Precipitation near normal. --------------------------------------------------------------------------- .END