--------------------------------------------------------------------------- FWF Combo Report generated using the latest Fire Weather Forecasts issued by PBZ/CTP at *** 5:01am *** on Monday April 20, 2026. --------------------------------------------------------------------------- Fire Weather Planning Forecast National Weather Service Pittsburgh PA 123 AM EDT Mon Apr 20 2026 Forest- Including the city of Tionesta 123 AM EDT Mon Apr 20 2026 Today Tonight Tue Cloud Cover Pcldy Mclear Pcldy Precip Type Snow Showers None None Chance Precip (%) 30 0 0 Chance of Thunder (%) 0 0 0 Temp (24h trend) 42 (-5) 22 (-6) 59 RH % (24h trend) 28 (-13) 76 (-18) 35 Wind 20ft/early(mph) NW 6 Lgt/Var Lgt/Var Wind 20ft/late(mph) NW 7 Lgt/Var S 7 Precip Amount 0.00 0.00 0.00 Precip Duration 1 Precip Begin 6 AM Precip End 8 AM Mixing Hgt(m-agl/msl) 2070 1200 Mixing Hgt(ft-agl/msl)6780 3920 Transport Wnd (mph) NW 18 SW 21 Vent Rate (kt-ft) 108480 70560 Category Day 5 4 Inversion 28F/6am 10pm 30F/8am Dispersion 5 4 Max ADI Early 118 Very Good7 Poor 64 Good Max ADI Late 139 Very Good3 Very Poor 92 Good Max LVORI Early 3 3 3 Max LVORI Late 1 4 1 Remarks...ADI is Atmospheric Dispersion Index by Lavdas. LVORI is Low Visibility Occurrence Risk Index. .FORECAST FOR DAYS 3 THROUGH 7... .WEDNESDAY...Mostly cloudy. Scattered showers. Lows in the lower 50s. Highs in the upper 60s. Southwest winds around 5 mph. .THURSDAY...Mostly clear. Lows in the upper 40s. Highs in the mid 70s. Light winds. .FRIDAY...Partly cloudy. Lows in the lower 50s. Highs in the upper 70s. Southwest winds 5 to 10 mph. .SATURDAY...Mostly cloudy with showers likely. Lows in the upper 50s. Highs around 70. Southwest winds 5 to 10 mph. .SUNDAY...Mostly cloudy. A chance of showers. Lows in the upper 40s. Highs in the upper 60s. Northwest winds 5 to 10 mph. $$ --------------------------------------------------------------------------- Fire Weather Planning Forecast for Central Pennsylvania National Weather Service State College, PA 501 AM EDT Mon Apr 20 2026 .DISCUSSION... A chilly day is on tap with a mix of sun and clouds, gusty NW winds, and relative humidity levels dropping into the low 30s (perhaps as low as the mid 20s). Tuesday will see slightly warmer conditions and lighter winds. More showers will be possible on Wednesday into late week, with the most likely day to remain dry being Thursday. Temperatures trend warmer each day through Friday with highs getting back into the 70s to near 80F. && Warren- Including the city of Warren 501 AM EDT Mon Apr 20 2026 Today Tonight Tue Cloud Cover Pcldy Mclear Pcldy Precip Type None None None Chance Precip (%) 0 0 0 Chance of Thunder (%) 0 0 0 Temp (24h trend) 41 (-5) 22 (-5) 58 RH % (24h trend) 32 (-5) 82 (-3) 35 20ftWnd-Val/AM(mph) NW 6 G15 S 5 G15 20ftWnd-Rdg/PM(mph) NW 7 G15 Lgt/Var S 7 G17 Precip Amount 0.00 0.00 0.00 Precip Duration Precip Begin Precip End Mixing Hgt(ft-agl) 6560 170 3590 Transport Wnd (mph) NW 17 S 5 SW 22 Vent Rate (kt-ft) 98400 680 68210 Dispersion 5 1 5 DSI 2 2 Sunshine Hours 9 8 Max ADI Early 108 Very Good85 Good 65 Good Max ADI Late 133 Very Good3 Very Poor 70 Good Max LVORI Early 3 3 3 Max LVORI Late 2 4 1 Remarks: ADI is Atmospheric Dispersion Index by Lavdas. LVORI is Low Visibility Occurrence Risk Index. .FORECAST FOR DAYS 3 THROUGH 7... .WEDNESDAY...Mostly cloudy. A chance of showers. Lows in the mid 40s. Highs in the mid 60s. Minimum RH 49 percent. Southwest winds around 5 mph. .THURSDAY...Mostly clear. Lows in the lower 40s. Highs in the lower 70s. Minimum RH 36 percent. South winds around 5 mph. .FRIDAY...Partly cloudy. A chance of showers. Lows in the upper 40s. Highs in the mid 70s. Minimum RH 45 percent. South winds around 5 mph. .SATURDAY...Mostly cloudy with showers likely. Cooler. Lows in the lower 50s. Highs in the mid 60s. Minimum RH 66 percent. Southeast winds around 5 mph. .SUNDAY...Mostly cloudy with a chance of showers. Lows in the mid 40s. Highs in the mid 60s. Minimum RH 54 percent. South winds around 5 mph. $$ McKean- Including the city of Bradford 501 AM EDT Mon Apr 20 2026 Today Tonight Tue Cloud Cover Pcldy Mclear Pcldy Precip Type Snow Showers None None Chance Precip (%) 20 0 0 Chance of Thunder (%) 0 0 0 Temp (24h trend) 40 (-5) 21 (-5) 55 RH % (24h trend) 30 (-6) 81 (-2) 31 20ftWnd-Val/AM(mph) NW 7 G16 Lgt/Var 20ftWnd-Rdg/PM(mph) NW 8 G16 Lgt/Var SW 7 G15 Precip Amount 0.00 0.00 0.00 Precip Duration 0 Precip Begin 6 AM Precip End 8 AM Mixing Hgt(ft-agl) 6820 230 4140 Transport Wnd (mph) NW 20 S 5 SW 20 Vent Rate (kt-ft) 115940 920 70380 Dispersion 5 1 5 DSI 2 2 Sunshine Hours 8 8 Max ADI Early 101 Very Good113 Very Good63 Good Max ADI Late 130 Very Good3 Very Poor 91 Good Max LVORI Early 3 3 3 Max LVORI Late 2 4 1 Remarks: ADI is Atmospheric Dispersion Index by Lavdas. LVORI is Low Visibility Occurrence Risk Index. .FORECAST FOR DAYS 3 THROUGH 7... .WEDNESDAY...Mostly cloudy. A chance of showers. Lows in the lower 40s. Highs in the mid 60s. Minimum RH 47 percent. Southwest winds around 5 mph. .THURSDAY...Mostly clear. Lows in the upper 30s. Highs around 70. Minimum RH 34 percent. West winds around 5 mph. .FRIDAY...Partly cloudy. A chance of showers. Lows in the mid 40s. Highs in the lower 70s. Minimum RH 43 percent. South winds around 5 mph. .SATURDAY...Mostly cloudy with showers likely. Cooler. Lows in the upper 40s. Highs in the lower 60s. Minimum RH 62 percent. Southeast winds around 5 mph. .SUNDAY...Mostly cloudy. A chance of showers. Lows in the lower 40s. Highs in the lower 60s. Minimum RH 56 percent. South winds around 5 mph. $$ Elk- Including the cities of St. Marys and Ridgway 501 AM EDT Mon Apr 20 2026 Today Tonight Tue Cloud Cover Pcldy Mclear Pcldy Precip Type Snow Showers None None Chance Precip (%) 30 0 0 Chance of Thunder (%) 0 0 0 Temp (24h trend) 43 (-4) 21 (-8) 57 RH % (24h trend) 29 (-8) 79 (-6) 32 20ftWnd-Val/AM(mph) NW 7 G18 Lgt/Var 20ftWnd-Rdg/PM(mph) NW 8 G18 Lgt/Var SW 7 G16 Precip Amount 0.00 0.00 0.00 Precip Duration 1 Precip Begin 6 AM Precip End 10 AM Mixing Hgt(ft-agl) 7170 240 4240 Transport Wnd (mph) NW 21 S 5 SW 20 Vent Rate (kt-ft) 129060 960 72080 Dispersion 5 1 5 DSI 2 2 Sunshine Hours 9 9 Max ADI Early 131 Very Good125 Very Good56 Gen Good Max ADI Late 155 Very Good2 Very Poor 91 Good Max LVORI Early 3 3 3 Max LVORI Late 1 4 1 Remarks: ADI is Atmospheric Dispersion Index by Lavdas. LVORI is Low Visibility Occurrence Risk Index. .FORECAST FOR DAYS 3 THROUGH 7... .WEDNESDAY...Mostly cloudy. A chance of showers. Lows in the mid 40s. Highs in the upper 60s. Minimum RH 48 percent. Southwest winds around 5 mph. .THURSDAY...Mostly clear. Lows in the lower 40s. Highs in the lower 70s. Minimum RH 34 percent. Northwest winds around 5 mph. .FRIDAY...Partly cloudy. A chance of showers. Lows in the upper 40s. Highs in the mid 70s. Minimum RH 44 percent. Southwest winds around 5 mph. .SATURDAY...Mostly cloudy with showers likely. Cooler. Lows in the lower 50s. Highs in the lower 60s. Minimum RH 65 percent. Southeast winds around 5 mph. .SUNDAY...Mostly cloudy. A chance of showers. Lows in the mid 40s. Highs in the lower 60s. Minimum RH 57 percent. Southeast winds around 5 mph. $$ --------------------------------------------------------------------------- .OUTLOOK 8 TO 14 DAYS... Temperatures below normal. Precipitation above normal. --------------------------------------------------------------------------- .END