UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025101800.upa.cvt Date: 0000Z 18 OCT 25 Searching for LTBM... Searching the city database file for: LTBM ... Date:0000Z 18 OCT 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 197 1 925 845 SFC 908 997 10.0 5.2 72 4.8 7.5 315 1 291.1 292.2 284.8 308.6 6.11 3 889 1175 12.8 1.8 47 11.0 7.1 265 2 295.7 296.6 285.4 310.2 4.90 4 882 1242 14.4 1.4 41 13.0 7.6 247 3 298.1 298.9 286.2 312.3 4.80 5 881 1252 14.0 1.0 41 13.0 7.3 244 3 297.7 298.6 285.9 311.6 4.67 6 867 1387 13.2 1.2 44 12.0 7.0 207 4 298.3 299.2 286.2 312.6 4.81 7 850 1555 12.8 -0.2 41 13.0 6.2 160 5 299.6 300.4 286.4 312.9 4.43 8 789 2178 10.2 -1.8 43 12.0 4.2 206 9 303.2 304.0 287.5 316.2 4.25 9 739 2720 6.2 -9.8 31 16.0 -0.4 246 12 304.6 305.0 286.1 312.3 2.46 10 706 3093 4.2 -7.8 41 12.0 -1.0 275 15 306.4 306.9 287.3 315.8 3.01 11 700 3163 3.8 -5.2 52 9.0 -0.3 280 15 306.7 307.4 288.2 318.2 3.71 12 591 4512 -6.5 -14.5 53 8.0 -9.3 275 27 309.9 310.3 287.6 316.7 2.10 13 588 4552 -6.3 -18.3 38 12.0 -10.1 275 27 310.6 310.9 287.3 315.7 1.54 14 502 5770 -14.5 -22.5 51 8.0 -16.6 270 38 315.0 315.2 288.5 319.2 1.25 15 500 5800 -14.7 -22.7 51 8.0 -16.8 270 38 315.1 315.4 288.5 319.3 1.23 16 446 6656 -21.7 -25.0 75 3.3 -22.4 275 42 316.8 317.0 288.9 320.6 1.13 17 433 6875 -20.7 -25.7 64 5.0 -21.8 276 43 320.7 320.9 290.1 324.5 1.09 18 426 6996 -21.5 -27.5 58 6.0 -22.8 277 43 321.2 321.4 290.1 324.5 0.94 19 400 7460 -23.1 -38.1 24 15.0 -25.4 280 45 325.0 325.0 290.6 326.3 0.36 20 368 8063 -27.9 -48.9 12 21.0 -29.9 279 44 326.4 326.4 290.8 326.9 0.12 21 300 9490 -40.3 -59.3 11 19.0 -41.1 275 41 328.6 328.6 291.3 328.7 0.04 22 250 10710 -49.7 280 48 332.2 23 200 12140 -59.7 275 54 338.2 24 190 12461 -61.9 265 57 339.7 25 188 12527 -62.1 265 58 340.4 26 165 13341 -60.1 265 67 356.7 27 150 13940 -59.3 265 73 367.9 28 131 14790 -60.3 262 68 380.7 29 105 16167 -62.1 256 61 402.1 30 100 16470 -61.7 255 59 408.5 31 91 17054 -62.3 280 69 418.5 32 70 18670 -63.9 250 30 447.7 33 60 19616 -62.7 250 30 470.5 34 50 20740 -62.1 250 30 497.1 35 49 20866 -61.5 250 30 501.4 36 38 22450 -60.9 253 27 540.8 37 30 23940 -56.5 255 25 590.6 38 28 24378 -57.1 258 26 600.7 39 25 25094 -58.3 264 28 617.1 40 20 26510 -55.3 275 31 666.9 41 16 27939 -53.7 273 33 716.1 42 14 28802 -51.5 272 34 751.4 43 10 30990 -50.9 270 37 829.5 44 8.3 32211 -48.1 886.0 45 6.9 33439 -44.1 950.6 46 5.6 34857 -38.5 1033.8 TRP 190 12461 -61.9 265 57 339.7 WND 91 17054 -62.3 280 69 418.5 Sounding variables and indices 1000-500 mb thick: 5603.00 m Freezing level: 659.79 mb = 3660.65 m = 12009.88 ft Wetbulb zero: 743.22 mb = 2672.69 m = 8768.55 ft Precipitable water: 0.56 inches Sfc-500 mean rel hum: 45.34 % Est. max temperature: 22.64 C = 72.75 F Sfc-Lift cond lev (LCL): 844.11 mb = 1613.25 m = 5292.74 ft T: 12.56 C 700-500 lapse rate: 7.02 C/km ThetaE index: 3.87 C Layer 739.0- 706.0 mb Conv cond level (CCL): 618.68 mb = 4147.19 m = 13606.11 ft Mean mixing ratio: 4.71 g/kg Conv temperature: 27.53 C = 81.56 F Cap Strength: 6.71 C Lifted Index: 6.08 C Risk: None Lifted Index @300 mb: 11.65 C Lifted Index @700 mb: 6.71 C Showalter Index: 5.85 C Risk: None Total Totals Index: 42.00 C Risk: None Vertical Totals Index: 27.50 C Cross Totals Index: 14.50 C K Index: 18.30 Risk: < 20 % chance of thunderstorms Sweat Index: 48.00 Risk: None Energy Index: 1.39 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 35.80 J/kg Max Up Vert Vel: 8.46 m/s Conv Inhibition (B-): 70109.12 J/kg Cap Strength: 6.67 C Lift Cond Lev (LCL): 717.37 mb = 2962.76 m = 9720.24 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 302 at 17 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 ---------------------------------------------------------- 0 908 997 315 1 0.7 -0.7 | 121 16 -14.0 8.4 1 850 1555 160 5 -1.7 4.7 | 130 21 -16.4 13.8 2 700 3163 280 15 14.8 -2.6 | 181 7 0.1 6.5 3 500 5800 270 38 38.0 -0.0 | 249 25 23.3 9.1 4 400 7460 280 45 44.3 -7.8 | 267 30 29.6 1.3 5 300 9490 275 41 40.8 -3.6 | 258 27 26.1 5.6 6 250 10710 280 48 47.3 -8.3 | 269 33 32.6 0.8 7 200 12140 275 54 53.8 -4.7 | 264 39 39.1 4.4 8 190 12461 265 57 56.8 5.0 | 251 44 42.1 14.1 9 150 13940 265 73 72.7 6.4 | 255 60 58.0 15.5 10 100 16470 255 59 57.0 15.3 | 240 49 42.3 24.4 11 91 17054 280 69 68.0 -12.0 | 273 53 53.2 -2.9 12 70 18670 250 30 28.2 10.3 | 215 24 13.5 19.4 13 50 20740 250 30 28.2 10.3 | 215 24 13.5 19.4 14 30 23940 255 25 24.1 6.5 | 211 18 9.4 15.6 15 20 26510 275 31 30.9 -2.7 | 248 17 16.2 6.4 16 10 30990 270 37 37.0 -0.0 | 248 24 22.3 9.1 Wind Parameters Mean winds (0-6000m): 271.8 at 23.1 knts Storm direction: 301.8 at 17.3 knts Shear (0-3000m) pos: 3.3 neg: 1.1 tot: 4.4 10-3/s Storm rel Dir Shear (0-3000m): 107.8 deg Storm rel helicity (0-3000m) pos: 97.0 neg: -5.3 tot: 91.8 m^2/s^2 ave: 30.6 10^-3 m/s^2 rel: 0.60 Storm rel vorticity (0-3000m) horiz: 6.7 stream: 4.0 10^-3/s Energy-Hel index: 0.02 Bulk Rich Number: 0.47 Bulk Shear: 76.36 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 ------------------------------------------------------------------------------- 500 165 3 127 19| 0.0 5.5 5.5| 15.4 -2.7 12.7 25.5 0.40| 7.9 3.2 1000 176 4 132 20| 1.9 2.8 4.6| 39.0 -5.3 33.7 33.7 0.51| 6.8 3.5 1500 203 6 140 19| 3.1 1.8 4.9| 67.5 -5.3 62.3 41.5 0.62| 6.8 4.2 2000 240 8 148 15| 3.8 1.4 5.2| 82.9 -5.3 77.7 38.8 0.57| 7.4 4.2 2500 263 9 152 12| 4.0 1.1 5.1| 89.6 -5.3 84.4 33.8 0.58| 7.1 4.1 3000 268 11 159 10| 3.3 1.1 4.4| 97.0 -5.3 91.8 30.6 0.60| 6.7 4.0 4000 271 15 182 9| 2.5 1.8 4.3|109.7 -5.3 104.5 26.1 0.56| 6.2 3.5 5000 271 19 207 10| 2.3 1.9 4.2|123.3 -5.3 118.1 23.6 0.52| 5.8 3.0 6000 272 23 225 12| 2.4 1.6 4.0|161.5 -5.3 156.2 26.0 0.56| 5.3 3.0 Wrote GIF file: /home/apache/climate/data/raob//LTBM/skewt/LTBM.skewt.20251018.00.gif