--------------------------------------------------------------------------- FWF Combo Report generated using the latest Fire Weather Forecasts issued by PBZ/CTP at *** 2:51pm *** on Tuesday August 18, 2026. --------------------------------------------------------------------------- Fire Weather Planning Forecast National Weather Service Pittsburgh PA 106 PM EDT Tue Aug 18 2026 Forest- Including the city of Tionesta 106 PM EDT Tue Aug 18 2026 Tonight Wed Wed Night Thu Cloud Cover Pcldy Pcldy Pcldy Pcldy Precip Type None Tstms Tstms Showers Chance Precip (%) 0 60 60 20 Chance of Thunder (%) 0 30 10 0 Temp (24h trend) 56 (-1) 77 (-1) 56 77 RH % (24h trend) 96 (-4) 69 (+16) 100 54 Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var Wind 20ft/late(mph) Lgt/Var W 5 Lgt/Var Lgt/Var Precip Amount 0.00 0.05 0.12 0.00 Precip Duration 1 2 0 Precip Begin 1 PM Continuing 2 PM Precip End Continuing 2 AM 6 PM Mixing Hgt(m-agl/msl) 1230 Mixing Hgt(ft-agl/msl) 4040 Transport Wnd (mph) W 14 N/A Vent Rate (kt-ft) 48480 Category Day 3 Inversion 7pm 63F/9am 8pm Dispersion 3 Max ADI Early 4 Very Poor 38 Fair 6 Very Poor 17 Gen Poor Max ADI Late 4 Very Poor 52 Gen Good 2 Very Poor 46 Gen Good Max LVORI Early 7 6 9 9 Max LVORI Late 7 3 10 3 Remarks...ADI is Atmospheric Dispersion Index by Lavdas. LVORI is Low Visibility Occurrence Risk Index. .FORECAST FOR DAYS 3 THROUGH 7... .FRIDAY...Partly cloudy. A chance of showers. Lows in the upper 50s. Highs in the upper 70s. Light winds. .SATURDAY...Partly cloudy. A chance of showers and thunderstorms. Lows around 60. Highs in the upper 70s. Southwest winds 5 to 10 mph. .SUNDAY...Mostly cloudy. A chance of showers and thunderstorms. Lows around 60. Highs in the mid 70s. West winds 5 to 10 mph. .MONDAY...Partly cloudy. Lows in the upper 50s. Highs in the mid 70s. West winds 5 to 10 mph. .TUESDAY...Partly cloudy. Lows in the upper 50s. Highs in the mid 70s. Southwest winds 5 to 10 mph. $$ --------------------------------------------------------------------------- Fire Weather Planning Forecast for Central Pennsylvania National Weather Service State College, PA 251 PM EDT Tue Aug 18 2026 .DISCUSSION... Decreasing clouds into tonight with areas of fog into early Wednesday morning. A band of rain showers moving across Lake Erie will likely impact the northwest Alleghenies/ANF region Wednesday morning. Additional isolated to scattered showers/t-storm are possible mainly across the northwestern half of central PA through Wednesday afternoon. Rain should be focused more over the southern part of the forecast area on Thursday with some locally heavy downpours possible near the MD line. Following a break in the precip on Friday, the weekend continues to look rather unsettled especially on Sunday. && Warren- Including the city of Warren 251 PM EDT Tue Aug 18 2026 Tonight Wed Wed Night Thu Cloud Cover Pcldy Mcldy Pcldy Pcldy Precip Type None Tstms Tstms None Chance Precip (%) 0 60 40 0 Chance of Thunder (%) 0 50 40 0 Temp (24h trend) 55 (-4) 78 (+1) 54 77 RH % (24h trend) 97 (-3) 66 (+13) 100 46 20ftWnd-Val/AM(mph) Lgt/Var Lgt/Var 20ftWnd-Rdg/PM(mph) Lgt/Var W 5 G13 Lgt/Var Lgt/Var Precip Amount 0.00 0.11 0.05 0.00 Precip Duration 4 1 Precip Begin 6 AM Continuing Precip End Continuing 4 AM Mixing Hgt(ft-agl) 420 3500 400 5140 Transport Wnd (mph) SW 8 W 15 N 5 N 8 Vent Rate (kt-ft) 2940 45500 1600 35980 Dispersion 2 5 1 5 DSI 2 2 Sunshine Hours 5 8 Max ADI Early 6 Very Poor 37 Fair 7 Poor 21 Fair Max ADI Late 4 Very Poor 50 Gen Good 3 Very Poor 54 Gen Good Max LVORI Early 6 6 8 9 Max LVORI Late 6 3 9 2 Remarks: ADI is Atmospheric Dispersion Index by Lavdas. LVORI is Low Visibility Occurrence Risk Index. .FORECAST FOR DAYS 3 THROUGH 7... .FRIDAY...Mostly clear. Lows in the lower 50s. Highs in the upper 70s. Minimum RH 45 percent. Light winds. .SATURDAY...Partly cloudy. Showers likely and a chance of thunderstorms. Lows in the mid 50s. Highs in the upper 70s. Minimum RH 59 percent. Southeast winds around 5 mph. .SUNDAY...Showers and a chance of thunderstorms. Lows in the upper 50s. Highs in the lower 70s. Minimum RH 66 percent. Southwest winds around 5 mph. .MONDAY...Partly cloudy. Lows in the lower 50s. Highs in the mid 70s. Minimum RH 59 percent. West winds around 5 mph. .TUESDAY...Partly cloudy. Lows in the mid 50s. Highs in the upper 70s. Minimum RH 56 percent. South winds around 5 mph. $$ McKean- Including the city of Bradford 251 PM EDT Tue Aug 18 2026 Tonight Wed Wed Night Thu Cloud Cover Pcldy Pcldy Pcldy Pcldy Precip Type None Tstms Tstms None Chance Precip (%) 0 50 40 0 Chance of Thunder (%) 0 50 40 0 Temp (24h trend) 52 (-6) 77 (+2) 53 76 RH % (24h trend) 99 (-1) 65 (+13) 100 46 20ftWnd-Val/AM(mph) Lgt/Var Lgt/Var 20ftWnd-Rdg/PM(mph) Lgt/Var W 6 G14 Lgt/Var Lgt/Var Precip Amount 0.00 0.09 0.05 0.00 Precip Duration 2 1 Precip Begin 9 AM Continuing Precip End Continuing 5 AM Mixing Hgt(ft-agl) 400 4060 390 5350 Transport Wnd (mph) SW 7 W 15 NW 6 N 9 Vent Rate (kt-ft) 2400 52780 1950 42800 Dispersion 1 5 1 5 DSI 2 1 Sunshine Hours 6 7 Max ADI Early 7 Poor 61 Good 8 Poor 23 Fair Max ADI Late 4 Very Poor 66 Good 3 Very Poor 58 Gen Good Max LVORI Early 6 6 9 9 Max LVORI Late 7 3 9 2 Remarks: ADI is Atmospheric Dispersion Index by Lavdas. LVORI is Low Visibility Occurrence Risk Index. .FORECAST FOR DAYS 3 THROUGH 7... .FRIDAY...Mostly clear. Patchy fog through the night. Areas of fog through the day. Lows in the upper 40s. Highs in the upper 70s. Minimum RH 44 percent. Light winds. .SATURDAY...Partly cloudy. Showers likely and a chance of thunderstorms. Lows in the mid 50s. Highs in the upper 70s. Minimum RH 60 percent. South winds around 5 mph. .SUNDAY...Mostly cloudy with showers likely and a chance of thunderstorms. Lows in the mid 50s. Highs in the lower 70s. Minimum RH 65 percent. Southwest winds around 5 mph. .MONDAY...Partly cloudy. Lows in the lower 50s. Highs in the lower 70s. Minimum RH 58 percent. West winds around 5 mph. .TUESDAY...Partly cloudy. Lows in the lower 50s. Highs in the mid 70s. Minimum RH 55 percent. Southwest winds around 5 mph. $$ Elk- Including the cities of St. Marys and Ridgway 251 PM EDT Tue Aug 18 2026 Tonight Wed Wed Night Thu Cloud Cover Pcldy Pcldy Pcldy Pcldy Precip Type None Tstms Tstms Showers Chance Precip (%) 0 40 40 20 Chance of Thunder (%) 0 40 40 0 Temp (24h trend) 53 (-6) 78 (+2) 55 76 RH % (24h trend) 100 (+1) 64 (+9) 100 52 20ftWnd-Val/AM(mph) Lgt/Var Lgt/Var 20ftWnd-Rdg/PM(mph) Lgt/Var W 6 G15 Lgt/Var Lgt/Var Precip Amount 0.00 0.04 0.03 0.00 Precip Duration 1 2 1 Precip Begin 11 AM Continuing Continuing Precip End Continuing Continuing 6 PM Mixing Hgt(ft-agl) 400 4030 410 4660 Transport Wnd (mph) SW 6 W 16 NW 5 N 7 Vent Rate (kt-ft) 2000 56420 1640 27960 Dispersion 1 5 1 5 DSI 2 2 Sunshine Hours 6 6 Max ADI Early 6 Very Poor 58 Gen Good 8 Poor 18 Gen Poor Max ADI Late 3 Very Poor 67 Good 3 Very Poor 43 Gen Good Max LVORI Early 6 6 8 9 Max LVORI Late 7 3 9 3 Remarks: ADI is Atmospheric Dispersion Index by Lavdas. LVORI is Low Visibility Occurrence Risk Index. .FORECAST FOR DAYS 3 THROUGH 7... .FRIDAY...Partly cloudy. Patchy fog through the night. Lows in the lower 50s. Highs in the upper 70s. Minimum RH 50 percent. Light winds. .SATURDAY...Partly cloudy. Showers likely and a chance of thunderstorms. Lows in the mid 50s. Highs in the upper 70s. Minimum RH 65 percent. Southeast winds around 5 mph. .SUNDAY...Mostly cloudy with showers likely and a chance of thunderstorms. Lows in the upper 50s. Highs in the lower 70s. Minimum RH 68 percent. Southwest winds around 5 mph. .MONDAY...Partly cloudy. Lows in the lower 50s. Highs in the lower 70s. Minimum RH 60 percent. West winds around 5 mph. .TUESDAY...Partly cloudy. Lows in the mid 50s. Highs in the mid 70s. Minimum RH 59 percent. West winds around 5 mph. $$ --------------------------------------------------------------------------- .OUTLOOK 8 TO 14 DAYS... Temperatures below normal. Precipitation above normal. --------------------------------------------------------------------------- .END