--------------------------------------------------------------------------- FWF Combo Report generated using the latest Fire Weather Forecasts issued by PBZ/CTP at *** 2:28am *** on Tuesday July 21, 2026. --------------------------------------------------------------------------- Fire Weather Planning Forecast National Weather Service Pittsburgh PA 1212 AM EDT Tue Jul 21 2026 Forest- Including the city of Tionesta 1212 AM EDT Tue Jul 21 2026 Today Tonight Wed Cloud Cover Mcldy Mcldy Pcldy Precip Type Tstms Tstms None Chance Precip (%) 90 90 0 Chance of Thunder (%) 50 50 0 Temp (24h trend) 78 (0) 57 (0) 69 RH % (24h trend) 77 (+33) 100 (+13) 57 Wind 20ft/early(mph) S 5 G18 Lgt/Var NW 5 Wind 20ft/late(mph) SW 8 G20 Lgt/Var NW 7 G17 Precip Amount 0.62 0.28 0.00 Precip Duration 2 2 Precip Begin 8 AM Continuing Precip End Continuing 2 AM Mixing Hgt(m-agl/msl) 890 1250 Mixing Hgt(ft-agl/msl)2910 4090 Transport Wnd (mph) SW 20 NW 15 Vent Rate (kt-ft) 49470 53170 Category Day 4 4 Inversion 70F/10am 7pm 58F/7am Dispersion 4 4 Max ADI Early 42 Gen Good 13 Gen Poor 50 Gen Good Max ADI Late 67 Good 7 Poor 71 Good Max LVORI Early 5 7 8 Max LVORI Late 4 9 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 50s. Highs in the mid 70s. North winds around 5 mph. .FRIDAY...Mostly clear. Lows in the mid 50s. Highs around 80. Northeast winds around 5 mph. .SATURDAY...Partly cloudy. Lows in the lower 60s. Highs in the lower 80s. Southeast winds 5 to 10 mph. .SUNDAY...Partly cloudy. A chance of showers and thunderstorms. Lows in the lower 60s. Highs in the mid 80s. Southwest winds around 5 mph. .MONDAY...Mostly cloudy. A chance of showers and thunderstorms. Lows in the mid 60s. Highs in the lower 80s. West winds 5 to 10 mph. $$ --------------------------------------------------------------------------- Fire Weather Planning Forecast for Central Pennsylvania National Weather Service State College, PA 227 AM EDT Tue Jul 21 2026 .DISCUSSION... Increasing clouds and low level moisture continue this morning with a few rain showers forecast to develop and move northeast across the Susquehanna Valley. Widespread showers and thunderstorms are expected this afternoon into tonight. Some of the storms will likely be severe with swaths of damaging wind gusts and locally heavy rainfall. A relatively cooler and noticeably less humid airmass arrives through midweek followed by a stretch of dry weather into the weekend. && Warren- Including the city of Warren 227 AM EDT Tue Jul 21 2026 Today Tonight Wed Cloud Cover Mcldy Mcldy Pcldy Precip Type Tstms Tstms Showers Chance Precip (%) 90 80 20 Chance of Thunder (%) 70 50 0 Temp (24h trend) 76 (-2) 55 (-2) 69 RH % (24h trend) 75 (+31) 100 (+16) 56 20ftWnd-Val/AM(mph) S 6 G16 W 6 G14 20ftWnd-Rdg/PM(mph) SW 8 G20 SW 5 G17 NW 8 G17 Precip Amount 0.41 0.35 0.01 Precip Duration 6 6 1 Precip Begin 8 AM Continuing Continuing Precip End Continuing Continuing 2 PM Mixing Hgt(ft-agl) 2840 460 4270 Transport Wnd (mph) SW 23 W 10 NW 16 Vent Rate (kt-ft) 56800 4140 59780 Dispersion 5 2 5 DSI 1 2 Sunshine Hours 4 6 Max ADI Early 42 Gen Good 35 Fair 55 Gen Good Max ADI Late 52 Gen Good 8 Poor 74 Good Max LVORI Early 4 7 5 Max LVORI Late 4 8 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. Patchy fog. Lows in the upper 40s. Highs in the mid 70s. Minimum RH 41 percent. West winds around 5 mph. .FRIDAY...Mostly clear. Lows around 50. Highs in the upper 70s. Minimum RH 39 percent. East winds around 5 mph. .SATURDAY...Mostly clear. Lows in the mid 50s. Highs in the lower 80s. Minimum RH 46 percent. Southeast winds around 5 mph. .SUNDAY...Partly cloudy. A chance of showers and thunderstorms. Lows in the upper 50s. Highs in the lower 80s. Minimum RH 53 percent. South winds around 5 mph. .MONDAY...Mostly cloudy. Showers likely and a chance of thunderstorms. Lows in the lower 60s. Highs in the upper 70s. Minimum RH 58 percent. West winds around 5 mph. $$ McKean- Including the city of Bradford 227 AM EDT Tue Jul 21 2026 Today Tonight Wed Cloud Cover Mcldy Mcldy Pcldy Precip Type Tstms Tstms Showers Chance Precip (%) 90 80 20 Chance of Thunder (%) 70 50 0 Temp (24h trend) 75 (-2) 55 (0) 68 RH % (24h trend) 73 (+33) 100 (+14) 57 20ftWnd-Val/AM(mph) S 6 G15 W 7 G14 20ftWnd-Rdg/PM(mph) SW 9 G19 SW 7 G18 W 9 G18 Precip Amount 0.42 0.29 0.01 Precip Duration 5 5 1 Precip Begin 9 AM Continuing Continuing Precip End Continuing Continuing 1 PM Mixing Hgt(ft-agl) 2900 460 4680 Transport Wnd (mph) SW 23 W 12 W 16 Vent Rate (kt-ft) 58000 4600 65520 Dispersion 5 3 5 DSI 1 2 Sunshine Hours 4 6 Max ADI Early 37 Fair 35 Fair 61 Good Max ADI Late 51 Gen Good 8 Poor 83 Good Max LVORI Early 5 8 6 Max LVORI Late 5 8 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. Patchy fog. Lows in the mid 40s. Highs in the lower 70s. Minimum RH 39 percent. West winds around 5 mph. .FRIDAY...Mostly clear. Lows in the upper 40s. Highs in the upper 70s. Minimum RH 38 percent. Southeast winds around 5 mph. .SATURDAY...Partly cloudy. Lows in the mid 50s. Highs around 80. Minimum RH 44 percent. Southeast winds around 5 mph. .SUNDAY...Partly cloudy. A chance of showers and thunderstorms. Lows in the upper 50s. Highs in the lower 80s. Minimum RH 51 percent. South winds around 5 mph. .MONDAY...Mostly cloudy. Showers likely and a chance of thunderstorms. Lows in the upper 50s. Highs in the upper 70s. Minimum RH 58 percent. West winds around 5 mph. $$ Elk- Including the cities of St. Marys and Ridgway 227 AM EDT Tue Jul 21 2026 Today Tonight Wed Cloud Cover Mcldy Mcldy Pcldy Precip Type Tstms Tstms None Chance Precip (%) 100 80 0 Chance of Thunder (%) 70 50 0 Temp (24h trend) 75 (-2) 56 (0) 70 RH % (24h trend) 76 (+32) 100 (+11) 56 20ftWnd-Val/AM(mph) S 5 G13 W 7 G14 20ftWnd-Rdg/PM(mph) SW 9 G18 SW 6 G18 NW 9 G18 Precip Amount 0.57 0.24 0.00 Precip Duration 5 5 Precip Begin 9 AM Continuing Precip End Continuing 2 AM Mixing Hgt(ft-agl) 3120 460 4700 Transport Wnd (mph) SW 17 SW 12 W 14 Vent Rate (kt-ft) 46800 4600 56400 Dispersion 5 2 5 DSI 1 2 Sunshine Hours 4 6 Max ADI Early 32 Fair 26 Fair 69 Good Max ADI Late 40 Fair 8 Poor 79 Good Max LVORI Early 5 7 8 Max LVORI Late 5 9 3 Remarks: ADI is Atmospheric Dispersion Index by Lavdas. LVORI is Low Visibility Occurrence Risk Index. .FORECAST FOR DAYS 3 THROUGH 7... .THURSDAY...Mostly clear. Patchy fog through the night. Lows in the upper 40s. Highs in the mid 70s. Minimum RH 41 percent. Northwest winds around 5 mph. .FRIDAY...Mostly clear. Lows around 50. Highs in the upper 70s. Minimum RH 41 percent. East winds around 5 mph. .SATURDAY...Partly cloudy. Lows in the mid 50s. Highs around 80. Minimum RH 47 percent. East winds around 5 mph. .SUNDAY...Partly cloudy. A chance of showers and thunderstorms. Lows in the upper 50s. Highs in the lower 80s. Minimum RH 54 percent. South winds around 5 mph. .MONDAY...Mostly cloudy. A chance of showers and thunderstorms. Lows around 60. Highs in the upper 70s. Minimum RH 61 percent. West winds around 5 mph. $$ --------------------------------------------------------------------------- .OUTLOOK 8 TO 14 DAYS... Temperatures near normal. Precipitation near normal. --------------------------------------------------------------------------- .END