--------------------------------------------------------------------------- FWF Combo Report generated using the latest Fire Weather Forecasts issued by PBZ/CTP at *** 2:31am *** on Friday August 21, 2026. --------------------------------------------------------------------------- Fire Weather Planning Forecast National Weather Service Pittsburgh PA 1244 AM EDT Fri Aug 21 2026 Forest- Including the city of Tionesta 1244 AM EDT Fri Aug 21 2026 Today Tonight Sat Cloud Cover Mclear Clear Pcldy Precip Type None None Tstms Chance Precip (%) 0 0 60 Chance of Thunder (%) 0 0 30 Temp (24h trend) 78 (+6) 53 (-1) 78 RH % (24h trend) 43 (-32) 93 (-7) 64 Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var Precip Amount 0.00 0.00 0.09 Precip Duration 1 Precip Begin 2 PM Precip End Continuing Mixing Hgt(m-agl/msl) 1500 940 Mixing Hgt(ft-agl/msl)4930 3070 Transport Wnd (mph) SE 6 S 10 Vent Rate (kt-ft) 24650 27630 Category Day 3 3 Inversion 64F/10am 7pm 61F/9am Dispersion 3 3 Max ADI Early 22 Fair 4 Very Poor 32 Fair Max ADI Late 35 Fair 5 Very Poor 48 Gen Good Max LVORI Early 7 5 6 Max LVORI Late 2 6 3 Remarks...ADI is Atmospheric Dispersion Index by Lavdas. LVORI is Low Visibility Occurrence Risk Index. .FORECAST FOR DAYS 3 THROUGH 7... .SUNDAY...Showers and a chance of thunderstorms. Lows around 60. Highs in the lower 70s. Southwest winds 5 to 10 mph. .MONDAY...Partly cloudy. Patchy fog through the night. Lows in the mid 50s. Highs in the lower 70s. Southwest winds around 5 mph. .TUESDAY...Partly cloudy. Lows in the lower 50s. Highs in the mid 70s. West winds 5 to 10 mph. .WEDNESDAY...Partly cloudy. Lows in the upper 50s. Highs in the upper 70s. South winds around 5 mph. .THURSDAY...Partly cloudy. A chance of showers. Lows in the lower 60s. Highs in the upper 70s. Southwest winds around 5 mph. $$ --------------------------------------------------------------------------- Fire Weather Planning Forecast for Central Pennsylvania National Weather Service State College, PA 231 AM EDT Fri Aug 21 2026 .DISCUSSION... A ridge of surface high pressure over Central and Western PA early today will drift slowly to the east and bring a mostly sunny day with light winds and comfortable humidity. Min RH this afternoon will range from the 40s across the Northwest Mountains to the 50s across much of the remainder of the Commonwealth. Saturday will be partly sunny with some mid to late afternoon showers and thunderstorms developing. Saturday night and Sunday will feature plenty of clouds with periods of showers and a few thunderstorms that will be most prevalent across the Northwest Mountains of Pennsylvania. && Warren- Including the city of Warren 231 AM EDT Fri Aug 21 2026 Today Tonight Sat Cloud Cover Mclear Clear Pcldy Precip Type None None Tstms Chance Precip (%) 0 0 70 Chance of Thunder (%) 0 0 50 Temp (24h trend) 79 (+6) 53 (-1) 80 RH % (24h trend) 40 (-28) 94 (-5) 59 20ftWnd-Val/AM(mph) Lgt/Var Lgt/Var 20ftWnd-Rdg/PM(mph) Lgt/Var Lgt/Var Lgt/Var Precip Amount 0.00 0.00 0.10 Precip Duration 1 Precip Begin 2 PM Precip End Continuing Mixing Hgt(ft-agl) 5090 410 3850 Transport Wnd (mph) SE 5 SE 5 S 13 Vent Rate (kt-ft) 20360 1640 42350 Dispersion 5 1 5 DSI 2 2 Sunshine Hours 12 8 Max ADI Early 26 Fair 3 Very Poor 37 Fair Max ADI Late 38 Fair 4 Very Poor 58 Gen Good Max LVORI Early 7 6 6 Max LVORI Late 2 6 3 Remarks: ADI is Atmospheric Dispersion Index by Lavdas. LVORI is Low Visibility Occurrence Risk Index. .FORECAST FOR DAYS 3 THROUGH 7... .SUNDAY...Showers and a chance of thunderstorms. Lows in the upper 50s. Highs in the lower 70s. Minimum RH 71 percent. Southwest winds around 5 mph. .MONDAY...Partly cloudy. A chance of showers. Lows in the lower 50s. Highs around 70. Minimum RH 60 percent. West winds around 5 mph. .TUESDAY...Partly cloudy. Lows in the lower 50s. Highs in the mid 70s. Minimum RH 54 percent. Southwest winds around 5 mph. .WEDNESDAY...Partly cloudy. Lows in the lower 50s. Highs in the upper 70s. Minimum RH 53 percent. Light winds. .THURSDAY...Mostly cloudy. A chance of showers. Lows in the upper 50s. Highs in the upper 70s. Minimum RH 60 percent. South winds around 5 mph. $$ McKean- Including the city of Bradford 231 AM EDT Fri Aug 21 2026 Today Tonight Sat Cloud Cover Mclear Mclear Pcldy Precip Type None None Tstms Chance Precip (%) 0 0 20 Chance of Thunder (%) 0 0 20 Temp (24h trend) 77 (+6) 50 (-1) 77 RH % (24h trend) 40 (-33) 99 (-1) 60 20ftWnd-Val/AM(mph) Lgt/Var Lgt/Var 20ftWnd-Rdg/PM(mph) Lgt/Var Lgt/Var S 5 G13 Precip Amount 0.00 0.00 0.03 Precip Duration 0 Precip Begin 4 PM Precip End Continuing Mixing Hgt(ft-agl) 5020 390 3360 Transport Wnd (mph) E 5 SE 8 S 14 Vent Rate (kt-ft) 20080 2730 40320 Dispersion 5 2 5 DSI 1 2 Sunshine Hours 12 7 Max ADI Early 26 Fair 3 Very Poor 38 Fair Max ADI Late 37 Fair 4 Very Poor 54 Gen Good Max LVORI Early 8 6 6 Max LVORI Late 2 6 2 Remarks: ADI is Atmospheric Dispersion Index by Lavdas. LVORI is Low Visibility Occurrence Risk Index. .FORECAST FOR DAYS 3 THROUGH 7... .SUNDAY...Showers and a chance of thunderstorms. Lows in the mid 50s. Highs around 70. Minimum RH 69 percent. Southwest winds around 5 mph. .MONDAY...Partly cloudy. A chance of showers. Lows in the upper 40s. Highs in the upper 60s. Minimum RH 59 percent. West winds around 5 mph. .TUESDAY...Partly cloudy. Lows in the upper 40s. Highs in the lower 70s. Minimum RH 53 percent. West winds around 5 mph. .WEDNESDAY...Partly cloudy. Lows in the lower 50s. Highs in the upper 70s. Minimum RH 53 percent. South winds around 5 mph. .THURSDAY...Mostly cloudy. A chance of showers and thunderstorms. Lows in the mid 50s. Highs in the upper 70s. Minimum RH 62 percent. South winds around 5 mph. $$ Elk- Including the cities of St. Marys and Ridgway 231 AM EDT Fri Aug 21 2026 Today Tonight Sat Cloud Cover Mclear Mclear Pcldy Precip Type None None Tstms Chance Precip (%) 0 0 40 Chance of Thunder (%) 0 0 40 Temp (24h trend) 77 (+7) 51 (-3) 77 RH % (24h trend) 45 (-36) 98 (-2) 68 20ftWnd-Val/AM(mph) Lgt/Var Lgt/Var 20ftWnd-Rdg/PM(mph) Lgt/Var Lgt/Var S 5 G12 Precip Amount 0.00 0.00 0.04 Precip Duration 1 Precip Begin 10 AM Precip End Continuing Mixing Hgt(ft-agl) 4530 400 3240 Transport Wnd (mph) E 5 SE 8 S 14 Vent Rate (kt-ft) 18120 2800 38880 Dispersion 5 2 5 DSI 1 2 Sunshine Hours 12 6 Max ADI Early 23 Fair 3 Very Poor 31 Fair Max ADI Late 32 Fair 4 Very Poor 49 Gen Good Max LVORI Early 7 6 6 Max LVORI Late 2 6 3 Remarks: ADI is Atmospheric Dispersion Index by Lavdas. LVORI is Low Visibility Occurrence Risk Index. .FORECAST FOR DAYS 3 THROUGH 7... .SUNDAY...Showers and a chance of thunderstorms. Lows in the upper 50s. Highs in the lower 70s. Minimum RH 72 percent. Southwest winds around 5 mph. .MONDAY...Partly cloudy. Lows in the lower 50s. Highs around 70. Minimum RH 63 percent. Southwest winds around 5 mph. .TUESDAY...Mostly clear. Lows around 50. Highs in the lower 70s. Minimum RH 58 percent. West winds around 5 mph. .WEDNESDAY...Partly cloudy. Lows in the lower 50s. Highs in the upper 70s. Minimum RH 58 percent. Light winds. .THURSDAY...Mostly cloudy. A chance of showers and thunderstorms. Lows in the upper 50s. Highs in the upper 70s. Minimum RH 66 percent. Southeast winds around 5 mph. $$ --------------------------------------------------------------------------- .OUTLOOK 8 TO 14 DAYS... Temperatures near normal. Precipitation above normal. --------------------------------------------------------------------------- .END