UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025041912.upa.cvt Date: 1200Z 19 APR 25 Searching for LTBM... Searching the city database file for: LTBM ... Date:1200Z 19 APR 25 Station: LTBM WMO ident: 17240 Latitude: 37.75 Longitude: 30.55 Elevation: 997.00 ------------------------------------------------------------------------------- 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 72 1 925 746 SFC 899 997 21.2 9.2 46 12.0 13.8 150 15 303.5 305.0 291.1 327.8 8.15 3 850 1475 17.6 6.6 48 11.0 11.1 200 17 304.6 305.9 290.6 326.3 7.21 4 795 2042 12.6 1.6 47 11.0 6.7 217 20 305.1 306.1 289.2 321.6 5.41 5 700 3095 3.8 -5.2 52 9.0 -0.3 250 25 306.7 307.4 288.2 318.2 3.71 6 661 3558 0.0 -12.0 40 12.0 -4.6 254 29 307.5 307.9 287.0 314.8 2.30 7 629 3954 -2.7 -19.7 26 17.0 -8.0 258 33 308.8 309.0 286.4 313.0 1.27 8 518 5470 -11.9 -35.9 12 24.0 -16.4 272 46 315.3 315.4 287.6 316.6 0.34 9 500 5740 -13.9 -36.9 12 23.0 -17.9 275 49 316.1 316.2 287.8 317.3 0.32 10 459 6382 -18.3 -34.3 23 16.0 -21.1 277 52 318.4 318.5 288.8 320.1 0.46 11 400 7390 -26.1 -42.1 21 16.0 -28.0 280 58 321.1 321.1 289.3 321.9 0.24 12 330 8749 -37.9 -52.9 19 15.0 -38.7 280 65 323.0 323.0 289.8 323.4 0.09 13 300 9400 -42.5 -53.5 29 11.0 -43.0 280 68 325.5 325.5 290.5 325.8 0.09 14 274 10008 -47.3 -57.7 29 10.4 -47.6 285 76 327.0 327.1 290.9 327.3 0.06 15 257 10430 -50.7 -60.7 30 10.0 -51.0 285 66 328.1 328.1 291.2 328.3 0.04 16 250 10610 -50.5 -61.5 26 11.0 -50.8 285 61 331.0 331.0 292.0 331.1 0.04 17 246 10715 -50.7 -62.7 23 12.0 -51.0 285 61 332.2 332.2 292.3 332.4 0.03 18 232 11098 -49.7 283 61 339.4 19 209 11782 -49.1 281 62 350.6 20 200 12070 -50.7 280 62 352.5 21 150 13920 -56.5 280 57 372.7 22 111 15812 -62.1 287 31 395.8 23 100 16460 -61.7 290 22 408.5 24 78 17995 -63.5 297 14 434.9 25 70 18660 -63.5 300 11 448.5 26 61 19509 -61.9 339 10 470.1 27 50 20740 -61.7 35 8 498.1 28 39 22280 -60.3 67 11 538.3 29 30 23930 -55.7 100 15 592.8 30 28 24368 -56.7 114 14 601.8 31 20 26530 -50.9 185 10 680.4 32 18 27218 -51.5 204 11 699.3 33 12 29893 -45.7 277 17 805.8 34 10 31120 -42.1 310 19 862.4 35 9.9 31188 -41.3 867.9 36 7.7 32908 -37.7 947.0 37 7.2 33373 -35.7 973.6 38 7.1 33471 -33.9 984.9 TRP 257 10430 -50.7 -60.7 30 10.0 -51.0 285 66 328.1 328.1 291.2 328.3 0.04 WND 274 10008 -47.3 -57.7 29 10.4 -47.6 285 76 327.0 327.1 290.9 327.3 0.06 Sounding variables and indices 1000-500 mb thick: 5668.00 m Freezing level: 661.00 mb = 3558.14 m = 11673.53 ft Wetbulb zero: 704.48 mb = 3042.19 m = 9980.80 ft Precipitable water: 0.59 inches Sfc-500 mean rel hum: 34.84 % Est. max temperature: 23.57 C = 74.43 F Sfc-Lift cond lev (LCL): 752.41 mb = 2497.71 m = 8194.49 ft T: 8.79 C 700-500 lapse rate: 6.69 C/km ThetaE index: 14.82 C Layer 850.0- 518.0 mb Conv cond level (CCL): 694.29 mb = 3161.20 m = 10371.27 ft Mean mixing ratio: 6.99 g/kg Conv temperature: 24.46 C = 76.03 F Cap Strength: 1.79 C Lifted Index: -0.44 C Risk: Thunderstorms probable Lifted Index @300 mb: 0.72 C Lifted Index @700 mb: 1.14 C Showalter Index: -0.85 C Risk: Thunderstorms probable Total Totals Index: 52.00 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 31.50 C Cross Totals Index: 20.50 C K Index: 29.10 Risk: 40-60 % chance of thunderstorms Sweat Index: 367.94 Risk: Showers and thunderstorms possible Energy Index: -1.74 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 93.37 J/kg Max Up Vert Vel: 13.67 m/s Conv Inhibition (B-): 62.46 J/kg Cap Strength: 1.79 C Lift Cond Lev (LCL): 717.60 mb = 2889.60 m = 9480.20 ft Lev Free Conv (LFC): 662.60 mb = 3538.64 m = 11609.58 ft Equ Level (EL): 312.60 mb = 9119.24 m = 29918.39 ft B at Equ Level: 91.97 J/kg Max Parcel Lev (MPL): 252.60 mb = 10542.46 m = 34587.71 ft Wind level data Storm motion: 293 at 26 knt ---------------------------------------------------------- TRUE/GROUND REL | STORM REL LEV P H DIR SPD U V | DIR SPD U V mb m knt m/s | knt m/s ---------------------------------------------------------- 0 899 997 150 15 -7.5 13.0 | 126 39 -31.4 23.2 1 850 1475 200 17 5.8 16.0 | 145 32 -18.1 26.2 2 700 3095 250 25 23.5 8.6 | 179 19 -0.4 18.8 3 500 5740 275 49 48.8 -4.3 | 257 26 24.9 5.9 4 400 7390 280 58 57.1 -10.1 | 270 33 33.2 0.1 5 300 9400 280 68 67.0 -11.8 | 272 43 43.0 -1.6 6 274 10008 285 76 73.4 -19.7 | 281 50 49.5 -9.5 7 257 10430 285 66 63.8 -17.1 | 280 40 39.8 -6.9 8 250 10610 285 61 58.9 -15.8 | 279 35 35.0 -5.6 9 200 12070 280 62 61.1 -10.8 | 271 37 37.1 -0.6 10 150 13920 280 57 56.1 -9.9 | 269 32 32.2 0.3 11 100 16460 290 22 20.7 -7.5 | 129 4 -3.3 2.7 12 70 18660 300 11 9.5 -5.5 | 108 15 -14.4 4.7 13 50 20740 35 8 -4.6 -6.6 | 97 29 -28.5 3.7 14 30 23930 100 15 -14.8 2.6 | 108 41 -38.7 12.8 15 20 26530 185 10 0.9 10.0 | 131 31 -23.1 20.2 16 10 31120 310 19 14.6 -12.2 | 78 10 -9.4 -2.0 Wind Parameters Mean winds (0-6000m): 263.1 at 34.7 knts Storm direction: 293.1 at 26.0 knts Shear (0-3000m) pos: 6.9 neg: 0.0 tot: 6.9 10-3/s Storm rel Dir Shear (0-3000m): 80.6 deg Storm rel helicity (0-3000m) pos: 263.1 neg: 0.0 tot: 263.1 m^2/s^2 ave: 87.7 10^-3 m/s^2 rel: 0.83 Storm rel vorticity (0-3000m) horiz: 7.4 stream: 6.2 10^-3/s Energy-Hel index: 0.12 Bulk Rich Number: 0.52 Bulk Shear: 181.30 m/s Storm Parameters ------------------------------------------------------------------------------- Depth Mean Inflow| Shear | Helicity | Vorticity AGL Dir Spd Dir Spd| Pos Neg Tot| Pos Neg Tot Ave Rel | Hor Strm m knt knt| 10^-3/s | m^2/s^2 m/s^2 | 10^-3/s ------------------------------------------------------------------------------- 500 178 16 137 36| 14.3 0.0 14.3|115.5 0.0 115.5 231.0 0.85| 14.7 12.4 1000 195 17 144 33| 9.9 0.0 9.9|153.1 0.0 153.1 153.1 0.85| 10.2 8.6 1500 207 18 150 31| 8.5 0.0 8.5|186.2 0.0 186.2 124.1 0.83| 8.9 7.3 2000 219 20 156 28| 7.8 0.0 7.8|213.0 0.0 213.0 106.5 0.79| 8.4 6.7 2500 228 21 161 26| 7.3 0.0 7.3|237.5 0.0 237.5 95.0 0.81| 7.8 6.4 3000 235 23 167 24| 6.9 0.0 6.9|263.1 0.0 263.1 87.7 0.83| 7.4 6.2 4000 247 26 181 20| 6.6 0.0 6.6|319.3 0.0 319.3 79.8 0.86| 7.0 6.0 5000 257 31 199 18| 6.2 0.0 6.2|375.7 0.0 375.7 75.1 0.86| 6.7 5.7 6000 263 35 216 18| 5.7 0.0 5.7|406.8 0.0 406.8 67.8 0.84| 6.1 5.1 Wrote GIF file: /home/apache/climate/data/raob//LTBM/skewt/LTBM.skewt.20250419.12.gif