MODEL GRIDDED SOUNDING PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/models/nam_218/2508261200F030.nam218 Reading from grid file:/home/data/models/nam_218/2508261200F030.nam218 Searching file for grids... Date: 30 hour NAM valid 18Z WED 27 AUG 25 Station: 42.47,-71.75 Latitude: 42.47 Longitude: -71.75 ------------------------------------------------------------------------------- LEV PRES HGHT TEMP DEWP RH DD WETB DIR SPD THETA THE-V THE-W THE-E W mb m C C % C C deg knt K K K K g/kg ------------------------------------------------------------------------------- 0 1000 137 SFC 995 184 20.5 10.3 52 10.2 14.4 260 5 294.1 295.5 287.8 317.0 7.94 2 950 576 15.6 8.2 61 7.4 11.4 260 7 293.0 294.3 286.6 313.7 7.20 3 900 1031 11.1 7.3 77 3.8 9.0 260 8 293.0 294.3 286.6 313.6 7.16 4 850 1504 6.4 6.0 97 0.5 6.2 261 9 292.9 294.1 286.3 312.7 6.90 5 800 1999 2.6 1.0 89 1.6 1.8 268 16 293.9 294.8 284.9 308.9 5.13 6 750 2518 -0.5 -3.7 79 3.2 -1.9 259 16 296.1 296.8 284.4 307.6 3.88 7 700 3066 -3.3 -19.8 27 16.5 -8.1 256 17 298.8 299.0 282.3 302.4 1.13 8 650 3648 -7.0 -23.1 26 16.2 -11.1 257 16 301.1 301.3 283.0 304.1 0.91 9 600 4266 -11.2 -23.2 36 12.0 -14.2 251 17 303.2 303.3 284.0 306.4 0.98 10 550 4928 -15.8 -28.8 32 12.9 -18.4 244 20 305.3 305.4 284.4 307.5 0.65 11 500 5638 -20.9 -34.6 28 13.7 -22.9 243 22 307.6 307.7 284.9 309.0 0.41 12 450 6408 -26.5 -43.1 19 16.6 -28.2 240 24 309.9 309.9 285.5 310.6 0.19 13 400 7248 -32.2 -52.2 12 20.0 -33.5 243 24 313.1 313.2 286.5 313.4 0.08 14 350 8176 -38.7 -55.8 15 17.1 -39.5 239 26 316.6 316.6 287.7 316.8 0.06 15 300 9221 -43.8 -61.0 13 17.2 -44.4 225 35 323.6 323.6 289.9 323.7 0.03 16 250 10437 -45.0 -67.6 6 22.5 -45.7 220 49 339.1 339.1 294.1 339.2 0.02 17 200 11935 -44.6 -75.6 2 31.0 -45.4 216 50 362.1 362.1 299.1 362.2 0.01 18 150 13834 -49.7 -79.4 2 29.7 -50.4 219 48 384.4 384.4 302.9 384.5 0.00 19 100 16463 -52.9 -81.8 2 29.0 -53.5 216 37 425.6 425.6 308.3 425.6 0.00 TRP 0 WND 0 Sounding variables and indices 1000-500 mb thick: 5501.06 m Freezing level: 757.42 mb = 2440.53 m = 8006.89 ft Wetbulb zero: 775.33 mb = 2250.45 m = 7383.26 ft Precipitable water: 0.75 inches Sfc-500 mean rel hum: 52.80 % Est. max temperature: 19.39 C = 66.90 F Sfc-Lift cond lev (LCL): 855.23 mb = 1453.60 m = 4768.98 ft T: 6.93 C 700-500 lapse rate: 6.82 C/km ThetaE index: 14.58 C Layer 950.0- 650.0 mb Conv cond level (CCL): 855.57 mb = 1450.38 m = 4758.41 ft Mean mixing ratio: 7.35 g/kg Conv temperature: 19.29 C = 66.73 F Cap Strength: -0.36 C Lifted Index: -1.27 C Risk: Thunderstorms probable Lifted Index @300 mb: 6.83 C Lifted Index @700 mb: -1.31 C Showalter Index: -0.27 C Risk: Thunderstorms probable Total Totals Index: 54.15 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 27.30 C Cross Totals Index: 26.85 C K Index: 16.80 Risk: < 20 % chance of thunderstorms Sweat Index: 215.73 Risk: None Energy Index: -0.80 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 260.82 J/kg Max Up Vert Vel: 22.84 m/s Conv Inhibition (B-): 4.18 J/kg Cap Strength: 0.85 C Lift Cond Lev (LCL): 851.17 mb = 1493.03 m = 4898.34 ft Lev Free Conv (LFC): 846.17 mb = 1541.23 m = 5056.47 ft Equ Level (EL): 416.17 mb = 6965.05 m = 22850.92 ft B at Equ Level: 259.92 J/kg Max Parcel Lev (MPL): 296.17 mb = 9306.38 m = 30532.37 ft Wind Parameters Mean winds (0-6000m): 252.3 at 15.8 knts Storm direction: 282.3 at 11.9 knts Shear (0-3000m) pos: 1.8 neg: 0.4 tot: 2.3 10-3/s Storm rel Dir Shear (0-3000m): 97.3 deg Storm rel helicity (0-3000m) pos: 11.4 neg: -3.0 tot: 8.4 m^2/s^2 ave: 2.8 10^-3 m/s^2 rel: 0.52 Storm rel vorticity (0-3000m) horiz: 2.4 stream: 1.3 10^-3/s Energy-Hel index: 0.02 Bulk Rich Number: 22.55 Bulk Shear: 11.57 m/s