Each colour starts at the value shown. Wind colours match across all three units. Dry cells stay neutral. Colours describe the displayed values, not official weather warnings.
Preparing forecast graphs…
Times and values match the detailed forecast. Tap or point at a value for details. Scroll each chart sideways for later days. Rain / precipitation is the total water equivalent per forecast interval, including snow; snowfall is fresh snow per interval, not snow depth.
GFS and ECMWF model comparison. Each model retains its own forecast times and horizon. Precipitation and snowfall amounts cover their own forecast intervals; these can differ between models.
ECMWF · Model run: Next update expected:
Day Time (UTC) Temp. (°C) Humidity (%) Wind (km/h) Wind (knots) Wind (Bft) Direction Precip. (mm) Snow (cm) Pressure (hPa) Freezing (m) Conditions | Thursday, 05/11 06:00 17.3 97 21 11 4B S — — 1013 3106 Overcast 97% cloud 09:00 17.6 100 19 10 3B S 2.0 0 1011 3095 Overcast 98% cloud 12:00 17.3 99 17 9 3B S 0.00 0 1011 3095 Overcast 93% cloud 15:00 21.7 75 16 9 3B S 0.09 0 1011 3092 Overcast 91% cloud 18:00 22.4 76 15 8 3B S 1.1 0 1010 3086 Cloudy 72% cloud 21:00 21.4 86 10 5 2B S 0.81 0 1009 3083 Partly cloudy 24% cloud Friday, 06/11 00:00 18.4 91 6 3 2B SW 0.16 0 1011 3089 Cloudy 69% cloud 03:00 15.9 89 6 3 2B W 0.00 0 1011 3086 Partly cloudy 31% cloud 06:00 13.3 95 5 3 1B NW 0 0 1012 3077 Cloudy 76% cloud 09:00 13.1 88 7 4 2B NW 0 0 1012 3064 Cloudy 67% cloud 12:00 11.7 87 6 3 2B NW 0 0 1013 3059 Cloudy 66% cloud 15:00 17 60 4 2 1B W 0 0 1013 3056 Cloudy 61% cloud 18:00 20.6 41 13 7 3B W 0 0 1011 3041 Cloudy 66% cloud 21:00 19.7 42 13 7 3B W 0 0 1010 2935 Partly cloudy 27% cloud Saturday, 07/11 00:00 15.1 60 13 7 3B NW 0 0 1012 2573 Cloudy 62% cloud 03:00 12.8 73 18 9 3B NW 0 0 1014 2446 Overcast 97% cloud 06:00 9.6 67 16 8 3B NW 0 0 1014 2456 Cloudy 73% cloud 09:00 7.5 65 15 8 3B NW 0 0 1015 1899 Clear 1% cloud 12:00 5.8 72 12 6 2B NW 0 0 1016 1683 Clear 8% cloud 15:00 9.9 50 22 12 4B NW 0 0 1017 1301 Partly cloudy 28% cloud 18:00 12.2 41 25 14 4B NW 0 0 1015 1336 Partly cloudy 23% cloud 21:00 10.2 50 24 13 4B W 0 0 1016 1286 Overcast 82% cloud Sunday, 08/11 00:00 9.2 62 22 12 4B W 0 0 1017 1359 Overcast 85% cloud 03:00 9.4 66 23 13 4B NW 0 0 1017 2066 Overcast 89% cloud 06:00 8.4 73 20 11 4B W 0 0 1017 2118 Partly cloudy 29% cloud 09:00 8.2 70 18 10 3B W 0 0 1017 2431 Cloudy 56% cloud 12:00 7.6 71 15 8 3B W 0 0 1018 2700 Partly cloudy 29% cloud 15:00 10.6 56 18 10 3B W 0 0 1018 2888 Clear 9% cloud 18:00 14.4 38 17 9 3B W 0 0 1015 3046 Clear 0% cloud 21:00 15.1 33 18 10 3B W 0 0 1012 3039 Cloudy 60% cloud Monday, 09/11 00:00 11.7 42 15 8 3B W 0 0 1013 3028 Clear 9% cloud 03:00 10.2 48 17 9 3B W 0 0 1014 3020 Clear 14% cloud 06:00 9.6 57 15 8 3B W 0 0 1014 3007 Partly cloudy 48% cloud 09:00 9.2 67 15 8 3B W 0 0 1014 1405 Cloudy 73% cloud 12:00 8.9 70 18 10 3B W 0 0 1015 1349 Partly cloudy 37% cloud 15:00 11.5 52 29 16 4B NW 0 0 1016 1366 Partly cloudy 43% cloud 18:00 12.5 46 28 15 4B NW 0 0 1016 1435 Partly cloudy 45% cloud 21:00 11.7 48 21 11 4B NW 0 0 1017 3037 Clear 8% cloud Tuesday, 10/11 00:00 8.9 60 14 7 3B NW 0.00 0 1019 3061 Clear 0% cloud 03:00 7.3 68 9 5 2B W 0 0 1019 3074 Clear 3% cloud 06:00 5.5 79 5 3 1B W 0 0 1019 3076 Clear 14% cloud 09:00 4.5 85 5 3 1B W 0 0 1018 3078 Cloudy 70% cloud 12:00 4.2 86 5 3 1B SW 0 0 1018 3076 Cloudy 52% cloud 15:00 12.7 48 13 7 3B SW 0 0 1017 3074 Cloudy 62% cloud 18:00 17.6 37 18 10 3B W 0 0 1013 3055 Cloudy 62% cloud 21:00 17.9 44 19 10 3B W 0 0 1012 3056 Clear 0% cloud Wednesday, 11/11 00:00 13.2 58 12 6 2B W 0 0 1014 3062 Cloudy 52% cloud 03:00 11.1 70 11 6 2B W 0 0 1015 3060 Clear 0% cloud 06:00 9.7 80 10 6 2B NW 0 0 1015 3059 Partly cloudy 31% cloud |
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Forecast table times: UTC.
Coordinates: 39.7454422°N, -77.9298435°E · Requested elevation: 248 m. Model terrain: 221 m. Terrain and 1000/925/850/700 hPa profiles are used for height estimates.
These are altitude estimates, not a simulation of local mountain terrain. Precipitation, cloud and sea-level pressure use horizontal interpolation only.
Precipitation includes rain and snow water equivalent: preceding 3 hours through day 6, then 6 hours (see cell tooltip). Snow (cm) estimates fresh snowfall from precipitation and temperature using the GFS conversion; it is not snow depth on the ground. Freezing (m) uses additional 600/500 hPa temperatures when available and estimates the lowest resolved 0°C crossing above sea level. When all sampled levels are warm, the upper profile limit is shown (see tooltip). < marks an entirely cold sampled profile and its lower height limit. No extrapolation is used.

Whitetail Resort is a downhill ski area in Pennsylvania, United States. Mapped terrain includes easy, intermediate, advanced, expert routes. Its mapped lift network extends from approximately 248 to 545 metres above sea level.
Data: OpenSkiData / OpenSkiMap, OpenStreetMap contributors (ODbL), Skimap.org, Who's On First, Mapterhorn.
Preparing forecast graphs…
Times and values match the detailed forecast. Tap or point at a value for details. Scroll each chart sideways for later days. Rain / precipitation is the total water equivalent per forecast interval, including snow; snowfall is fresh snow per interval, not snow depth.
GFS and ECMWF model comparison. Each model retains its own forecast times and horizon. Precipitation and snowfall amounts cover their own forecast intervals; these can differ between models.
ECMWF · Model run: Next update expected:
Day Time (UTC) Temp. (°C) Humidity (%) Wind (km/h) Wind (knots) Wind (Bft) Direction Precip. (mm) Snow (cm) Pressure (hPa) Freezing (m) Conditions | Thursday, 05/11 06:00 17.3 97 21 12 4B S — — 1013 3106 Overcast 97% cloud 09:00 17.6 100 20 11 4B S 2.0 0 1011 3095 Overcast 98% cloud 12:00 17.3 99 18 9 3B S 0.00 0 1011 3095 Overcast 93% cloud 15:00 21.5 76 17 9 3B S 0.09 0 1011 3092 Overcast 91% cloud 18:00 22.3 76 15 8 3B S 1.1 0 1010 3086 Cloudy 72% cloud 21:00 21.4 85 10 5 2B S 0.83 0 1009 3083 Partly cloudy 25% cloud Friday, 06/11 00:00 18.3 91 7 4 2B SW 0.16 0 1011 3089 Cloudy 69% cloud 03:00 15.9 88 7 4 2B W 0.00 0 1011 3086 Partly cloudy 31% cloud 06:00 13.4 94 6 3 2B NW 0 0 1012 3077 Cloudy 75% cloud 09:00 13.1 88 8 4 2B NW 0 0 1012 3064 Cloudy 66% cloud 12:00 11.7 86 7 4 2B NW 0 0 1013 3059 Cloudy 65% cloud 15:00 16.8 60 5 3 1B W 0 0 1013 3056 Cloudy 61% cloud 18:00 20.4 41 13 7 3B W 0 0 1011 3041 Cloudy 65% cloud 21:00 19.5 42 13 7 3B W 0 0 1010 2934 Partly cloudy 27% cloud Saturday, 07/11 00:00 15 60 13 7 3B NW 0 0 1012 2572 Cloudy 60% cloud 03:00 12.7 74 18 10 3B NW 0 0 1014 2447 Overcast 97% cloud 06:00 9.5 67 16 9 3B NW 0 0 1014 2457 Cloudy 72% cloud 09:00 7.3 65 16 8 3B NW 0 0 1015 1900 Clear 1% cloud 12:00 5.7 72 13 7 3B NW 0 0 1016 1684 Clear 8% cloud 15:00 9.7 51 22 12 4B NW 0 0 1017 1302 Partly cloudy 28% cloud 18:00 12 41 26 14 4B NW 0 0 1015 1336 Partly cloudy 23% cloud 21:00 10.1 50 25 13 4B W 0 0 1016 1285 Overcast 82% cloud Sunday, 08/11 00:00 9.1 62 23 12 4B W 0 0 1017 1361 Overcast 85% cloud 03:00 9.2 66 24 13 4B NW 0 0 1017 2069 Overcast 88% cloud 06:00 8.3 73 21 11 4B W 0 0 1017 2120 Partly cloudy 30% cloud 09:00 8.1 71 19 10 3B W 0 0 1017 2434 Cloudy 55% cloud 12:00 7.5 71 16 9 3B W 0 0 1018 2701 Partly cloudy 28% cloud 15:00 10.4 56 18 10 3B W 0 0 1018 2889 Clear 9% cloud 18:00 14.2 39 17 9 3B W 0 0 1015 3046 Clear 0% cloud 21:00 15 33 19 10 3B W 0 0 1012 3039 Cloudy 60% cloud Monday, 09/11 00:00 11.6 42 16 9 3B W 0 0 1013 3029 Clear 9% cloud 03:00 10.1 48 18 10 3B W 0 0 1014 3020 Clear 14% cloud 06:00 9.5 57 16 9 3B W 0 0 1014 3007 Partly cloudy 49% cloud 09:00 9.1 67 16 9 3B W 0 0 1014 1405 Cloudy 74% cloud 12:00 8.8 71 19 10 3B W 0 0 1015 1351 Partly cloudy 37% cloud 15:00 11.3 53 29 16 5B NW 0 0 1016 1367 Partly cloudy 43% cloud 18:00 12.3 47 28 15 4B NW 0 0 1016 1436 Partly cloudy 45% cloud 21:00 11.5 48 22 12 4B NW 0 0 1017 3037 Clear 8% cloud Tuesday, 10/11 00:00 8.8 60 15 8 3B NW 0.00 0 1019 3061 Clear 0% cloud 03:00 7.3 68 10 5 2B NW 0 0 1019 3074 Clear 3% cloud 06:00 5.5 79 6 3 2B W 0 0 1019 3076 Clear 14% cloud 09:00 4.5 84 6 3 2B W 0 0 1018 3078 Cloudy 70% cloud 12:00 4.3 85 6 3 2B SW 0 0 1018 3076 Cloudy 52% cloud 15:00 12.6 48 14 7 3B SW 0 0 1017 3074 Cloudy 62% cloud 18:00 17.4 37 19 10 3B W 0 0 1014 3055 Cloudy 62% cloud 21:00 17.8 44 19 10 3B W 0 0 1013 3056 Clear 0% cloud Wednesday, 11/11 00:00 13.2 58 13 7 3B W 0 0 1014 3062 Cloudy 52% cloud 03:00 11.1 70 12 6 2B W 0 0 1015 3061 Clear 0% cloud 06:00 9.7 80 11 6 2B NW 0 0 1015 3059 Partly cloudy 32% cloud |
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Forecast table times: UTC.
Coordinates: 39.7415088°N, -77.93438°E · Requested elevation: 263 m. Model terrain: 222 m. Terrain and 1000/925/850/700 hPa profiles are used for height estimates.
These are altitude estimates, not a simulation of local mountain terrain. Precipitation, cloud and sea-level pressure use horizontal interpolation only.
Precipitation includes rain and snow water equivalent: preceding 3 hours through day 6, then 6 hours (see cell tooltip). Snow (cm) estimates fresh snowfall from precipitation and temperature using the GFS conversion; it is not snow depth on the ground. Freezing (m) uses additional 600/500 hPa temperatures when available and estimates the lowest resolved 0°C crossing above sea level. When all sampled levels are warm, the upper profile limit is shown (see tooltip). < marks an entirely cold sampled profile and its lower height limit. No extrapolation is used.
Preparing forecast graphs…
Times and values match the detailed forecast. Tap or point at a value for details. Scroll each chart sideways for later days. Rain / precipitation is the total water equivalent per forecast interval, including snow; snowfall is fresh snow per interval, not snow depth.
GFS and ECMWF model comparison. Each model retains its own forecast times and horizon. Precipitation and snowfall amounts cover their own forecast intervals; these can differ between models.
ECMWF · Model run: Next update expected:
Day Time (UTC) Temp. (°C) Humidity (%) Wind (km/h) Wind (knots) Wind (Bft) Direction Precip. (mm) Snow (cm) Pressure (hPa) Freezing (m) Conditions | Thursday, 05/11 06:00 16.6 94 44 24 6B S — — 1013 3106 Overcast 97% cloud 09:00 16.7 99 41 22 6B S 2.0 0 1011 3094 Overcast 98% cloud 12:00 16.4 97 38 21 5B SW 0.00 0 1011 3094 Overcast 93% cloud 15:00 18.5 86 26 14 4B SW 0.09 0 1011 3092 Overcast 92% cloud 18:00 19.9 80 23 12 4B SW 1.0 0 1010 3086 Cloudy 71% cloud 21:00 19.9 81 19 10 3B SW 0.76 0 1009 3083 Partly cloudy 24% cloud Friday, 06/11 00:00 18 78 20 11 4B W 0.15 0 1011 3089 Cloudy 71% cloud 03:00 16.3 76 25 13 4B W 0 0 1011 3086 Partly cloudy 29% cloud 06:00 14.2 79 18 10 3B W 0 0 1012 3077 Cloudy 75% cloud 09:00 13.1 73 18 10 3B W 0 0 1012 3063 Cloudy 66% cloud 12:00 11.9 74 14 7 3B NW 0 0 1013 3059 Cloudy 66% cloud 15:00 14 64 9 5 2B W 0 0 1013 3056 Cloudy 63% cloud 18:00 17 49 17 9 3B W 0 0 1011 3041 Cloudy 65% cloud 21:00 16.8 48 18 10 3B W 0 0 1010 2929 Partly cloudy 27% cloud Saturday, 07/11 00:00 13.1 65 24 13 4B NW 0 0 1012 2566 Cloudy 60% cloud 03:00 10.2 81 29 16 5B NW 0 0 1014 2445 Overcast 96% cloud 06:00 7.2 69 32 17 5B NW 0 0 1014 2451 Cloudy 71% cloud 09:00 5.2 68 32 17 5B NW 0 0 1015 1896 Clear 0% cloud 12:00 3.8 77 29 16 5B NW 0 0 1016 1679 Clear 9% cloud 15:00 6.2 61 29 16 5B NW 0 0 1017 1296 Partly cloudy 29% cloud 18:00 8.3 50 34 19 5B NW 0 0 1015 1335 Partly cloudy 24% cloud 21:00 7.2 59 35 19 5B W 0 0 1016 1285 Overcast 85% cloud Sunday, 08/11 00:00 6.4 73 42 23 6B NW 0 0 1017 1361 Overcast 85% cloud 03:00 6.9 75 48 26 6B NW 0 0 1017 2074 Overcast 89% cloud 06:00 6.2 81 40 22 6B NW 0 0 1017 2120 Partly cloudy 30% cloud 09:00 5.9 79 37 20 5B NW 0 0 1017 2433 Cloudy 57% cloud 12:00 5.3 79 32 17 5B NW 0 0 1018 2706 Partly cloudy 28% cloud 15:00 6.9 68 26 14 4B W 0 0 1018 2888 Clear 9% cloud 18:00 10.6 46 24 13 4B W 0 0 1015 3046 Clear 0% cloud 21:00 12.4 36 33 18 5B W 0 0 1012 3039 Cloudy 60% cloud Monday, 09/11 00:00 10.4 43 37 20 5B W 0 0 1013 3028 Clear 8% cloud 03:00 8.8 52 39 21 5B W 0 0 1014 3020 Clear 14% cloud 06:00 7.7 64 34 18 5B W 0 0 1014 3007 Cloudy 51% cloud 09:00 6.9 76 33 18 5B W 0 0 1014 1404 Cloudy 74% cloud 12:00 6.3 79 34 18 5B NW 0 0 1015 1349 Partly cloudy 36% cloud 15:00 8 63 41 22 6B NW 0 0 1016 1367 Partly cloudy 39% cloud 18:00 9 56 38 21 5B NW 0 0 1016 1436 Partly cloudy 45% cloud 21:00 8.8 56 31 17 5B NW 0 0 1017 3037 Clear 8% cloud Tuesday, 10/11 00:00 7.1 64 31 17 5B NW 0.00 0 1019 3061 Clear 0% cloud 03:00 6.5 70 29 16 5B NW 0 0 1019 3074 Clear 3% cloud 06:00 5.7 74 24 13 4B NW 0 0 1019 3076 Clear 14% cloud 09:00 5.6 70 23 12 4B W 0 0 1018 3078 Cloudy 70% cloud 12:00 5.8 67 23 13 4B W 0 0 1018 3076 Cloudy 52% cloud 15:00 10 52 30 16 5B W 0 0 1017 3074 Cloudy 63% cloud 18:00 14.1 44 26 14 4B W 0 0 1013 3055 Cloudy 62% cloud 21:00 15.2 50 32 17 5B W 0 0 1012 3056 Clear 0% cloud Wednesday, 11/11 00:00 12.5 59 32 17 5B W 0 0 1014 3062 Cloudy 51% cloud 03:00 11 69 30 16 5B W 0 0 1015 3060 Clear 0% cloud 06:00 9.7 79 27 15 4B NW 0 0 1015 3059 Partly cloudy 31% cloud |
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Forecast table times: UTC.
Coordinates: 39.7503597°N, -77.9405261°E · Requested elevation: 545 m. Model terrain: 226 m. Terrain and 1000/925/850/700 hPa profiles are used for height estimates.
These are altitude estimates, not a simulation of local mountain terrain. Precipitation, cloud and sea-level pressure use horizontal interpolation only.
Precipitation includes rain and snow water equivalent: preceding 3 hours through day 6, then 6 hours (see cell tooltip). Snow (cm) estimates fresh snowfall from precipitation and temperature using the GFS conversion; it is not snow depth on the ground. Freezing (m) uses additional 600/500 hPa temperatures when available and estimates the lowest resolved 0°C crossing above sea level. When all sampled levels are warm, the upper profile limit is shown (see tooltip). < marks an entirely cold sampled profile and its lower height limit. No extrapolation is used.