--------------------------------------------------------------------------- FWF Combo Report generated using the latest Fire Weather Forecasts issued by PBZ/CTP at *** 1:20pm *** on Tuesday April 21, 2026. --------------------------------------------------------------------------- Fire Weather Planning Forecast National Weather Service Pittsburgh PA 120 PM EDT Tue Apr 21 2026 Forest- Including the city of Tionesta 120 PM EDT Tue Apr 21 2026 Tonight Wed Wed Night Thu Cloud Cover Pcldy Pcldy Mclear Mclear Precip Type Tstms Showers None None Chance Precip (%) 60 30 0 0 Chance of Thunder (%) 20 0 0 0 Temp (24h trend) 46 (+22) 68 (+9) 43 74 RH % (24h trend) 91 (+10) 51 (+20) 97 34 Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var Lgt/Var Wind 20ft/late(mph) Lgt/Var NW 5 Lgt/Var Lgt/Var Precip Amount 0.02 0.01 0.00 0.00 Precip Duration 2 2 Precip Begin 8 PM Continuing Precip End Continuing 6 PM Mixing Hgt(m-agl/msl) 1660 1730 Mixing Hgt(ft-agl/msl) 5440 5660 Transport Wnd (mph) NW 15 NW 15 Vent Rate (kt-ft) 76750 73580 Category Day 4 4 Inversion 7pm 58F/11am 8pm 51F/9am Dispersion 5 4 Max ADI Early 9 Poor 13 Gen Poor 8 Poor 42 Gen Good Max ADI Late 9 Poor 93 Good 3 Very Poor 96 Good Max LVORI Early 3 5 5 7 Max LVORI Late 5 3 8 1 Remarks...ADI is Atmospheric Dispersion Index by Lavdas. LVORI is Low Visibility Occurrence Risk Index. .FORECAST FOR DAYS 3 THROUGH 7... .FRIDAY...Partly cloudy. Lows in the lower 50s. Highs in the upper 70s. Light winds. .SATURDAY...Mostly cloudy with showers likely. Cooler. Lows in the mid 50s. Highs in the upper 60s. West winds 5 to 10 mph. .SUNDAY...Mostly cloudy. A chance of showers. Lows in the upper 40s. Highs in the upper 60s. Northeast winds 5 to 10 mph. .MONDAY...Partly cloudy. A chance of showers. Lows in the mid 40s. Highs in the lower 70s. Southeast winds 5 to 10 mph. .TUESDAY...Mostly cloudy with showers likely. Lows in the lower 50s. Highs in the upper 60s. South winds 10 to 15 mph. $$ --------------------------------------------------------------------------- Fire Weather Planning Forecast for Central Pennsylvania National Weather Service State College, PA 957 AM EDT Tue Apr 21 2026 .DISCUSSION... Abnormally dry air in place this afternoon, but much less wind than yesterday. RH values still in the 25 to 30 percent range this aft. Light showers are expected tonight with a few lingering showers on Wednesday with highs in the 60s and RH bottoming out around 50 percent. Dry weather is expected on Thursday. Temperatures trend warmer each day through Friday with highs getting back into the 70s to near 80F. && Warren- Including the city of Warren 957 AM EDT Tue Apr 21 2026 Today Tonight Wed Cloud Cover Pcldy Pcldy Pcldy Precip Type None Showers Showers Chance Precip (%) 0 60 20 Chance of Thunder (%) 0 0 0 Temp (24h trend) 57 (+19) 46 (+25) 68 RH % (24h trend) 33 (-10) 92 (+2) 49 20ftWnd-Val/AM(mph) Lgt/Var Lgt/Var 20ftWnd-Rdg/PM(mph) S 7 G19 S 5 G17 NW 5 Precip Amount 0.00 0.09 0.02 Precip Duration 5 1 Precip Begin 8 PM Continuing Precip End Continuing 2 PM Mixing Hgt(ft-agl) 3450 320 4890 Transport Wnd (mph) S 18 SW 10 NW 13 Vent Rate (kt-ft) 55200 2880 53790 Dispersion 5 1 5 DSI 2 2 Sunshine Hours 9 7 Max ADI Early 56 Gen Good 58 Gen Good 13 Gen Poor Max ADI Late 73 Good 9 Poor 75 Good Max LVORI Early 3 3 5 Max LVORI Late 1 5 2 Remarks: ADI is Atmospheric Dispersion Index by Lavdas. LVORI is Low Visibility Occurrence Risk Index. .FORECAST FOR DAYS 3 THROUGH 7... .THURSDAY...Mostly clear. Lows in the lower 40s. Highs in the lower 70s. Minimum RH 35 percent. Light winds. .FRIDAY...Partly cloudy. A chance of showers. Lows in the upper 40s. Highs in the lower 70s. Minimum RH 46 percent. Southeast winds around 5 mph. .SATURDAY...Mostly cloudy with showers likely. Cooler. Lows around 50. Highs in the lower 60s. Minimum RH 67 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 49 percent. East winds around 5 mph. .MONDAY...Partly cloudy. A chance of showers. Lows in the lower 40s. Highs in the upper 60s. Minimum RH 44 percent. East winds around 5 mph. $$ McKean- Including the city of Bradford 957 AM EDT Tue Apr 21 2026 Today Tonight Wed Cloud Cover Pcldy Pcldy Pcldy Precip Type None Showers Showers Chance Precip (%) 0 60 30 Chance of Thunder (%) 0 0 0 Temp (24h trend) 53 (+16) 41 (+23) 67 RH % (24h trend) 28 (-11) 91 (+3) 49 20ftWnd-Val/AM(mph) Lgt/Var Lgt/Var 20ftWnd-Rdg/PM(mph) SW 7 G16 S 5 G16 NW 5 Precip Amount 0.00 0.09 0.02 Precip Duration 5 2 Precip Begin 8 PM Continuing Precip End Continuing 6 PM Mixing Hgt(ft-agl) 3950 300 4960 Transport Wnd (mph) SW 20 SW 9 NW 14 Vent Rate (kt-ft) 67150 2400 59520 Dispersion 5 1 5 DSI 2 2 Sunshine Hours 9 6 Max ADI Early 54 Gen Good 50 Gen Good 12 Poor Max ADI Late 74 Good 9 Poor 75 Good Max LVORI Early 3 3 5 Max LVORI Late 1 5 3 Remarks: ADI is Atmospheric Dispersion Index by Lavdas. LVORI is Low Visibility Occurrence Risk Index. .FORECAST FOR DAYS 3 THROUGH 7... .THURSDAY...Mostly clear. Lows in the lower 40s. Highs in the lower 70s. Minimum RH 33 percent. West winds around 5 mph. .FRIDAY...Partly cloudy. A chance of showers. Lows in the mid 40s. Highs around 70. Minimum RH 44 percent. East winds around 5 mph. .SATURDAY...Showers, cooler. Lows in the upper 40s. Highs in the upper 50s. Minimum RH 65 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 48 percent. East winds around 5 mph. .MONDAY...Partly cloudy. A chance of showers. Lows around 40. Highs in the mid 60s. Minimum RH 45 percent. East winds around 5 mph. $$ Elk- Including the cities of St. Marys and Ridgway 957 AM EDT Tue Apr 21 2026 Today Tonight Wed Cloud Cover Mclear Mcldy Pcldy Precip Type None Showers Showers Chance Precip (%) 0 60 40 Chance of Thunder (%) 0 0 0 Temp (24h trend) 55 (+15) 43 (+23) 68 RH % (24h trend) 28 (-9) 91 (+1) 50 20ftWnd-Val/AM(mph) Lgt/Var Lgt/Var 20ftWnd-Rdg/PM(mph) SW 6 G16 Lgt/Var NW 5 G13 Precip Amount 0.00 0.08 0.03 Precip Duration 5 2 Precip Begin 8 PM Continuing Precip End Continuing 6 PM Mixing Hgt(ft-agl) 3980 380 5560 Transport Wnd (mph) SW 17 SW 12 NW 15 Vent Rate (kt-ft) 59700 3800 72280 Dispersion 5 1 5 DSI 2 2 Sunshine Hours 9 6 Max ADI Early 54 Gen Good 62 Good 12 Poor Max ADI Late 80 Good 8 Poor 93 Good Max LVORI Early 3 3 5 Max LVORI Late 1 5 3 Remarks: ADI is Atmospheric Dispersion Index by Lavdas. LVORI is Low Visibility Occurrence Risk Index. .FORECAST FOR DAYS 3 THROUGH 7... .THURSDAY...Mostly clear. Lows in the mid 40s. Highs in the lower 70s. Minimum RH 34 percent. West winds around 5 mph. .FRIDAY...Partly cloudy. A chance of showers. Lows in the upper 40s. Highs in the lower 70s. Minimum RH 45 percent. East winds around 5 mph. .SATURDAY...Showers, cooler. Lows in the upper 40s. Highs in the lower 60s. Minimum RH 65 percent. Southeast winds around 5 mph. .SUNDAY...Mostly cloudy. A chance of showers. Lows in the lower 40s. Highs in the lower 60s. Minimum RH 49 percent. East winds around 5 mph. .MONDAY...Partly cloudy. A chance of showers. Lows in the lower 40s. Highs in the mid 60s. Minimum RH 45 percent. East winds around 5 mph. $$ --------------------------------------------------------------------------- .OUTLOOK 8 TO 14 DAYS... Temperatures below normal. Precipitation near normal. --------------------------------------------------------------------------- .END