UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025102112.upa.cvt Date: 1200Z 21 OCT 25 Searching for LTBM... Searching the city database file for: LTBM ... Date:1200Z 21 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 122 1 925 791 SFC 903 997 18.4 12.4 68 6.0 14.6 100 6 300.2 302.0 291.6 329.8 10.07 3 881 1208 16.4 7.4 55 9.0 11.1 161 6 300.2 301.6 289.3 322.0 7.35 4 850 1512 13.4 6.4 63 7.0 9.4 250 7 300.2 301.5 289.1 321.2 7.11 5 790 2123 8.6 1.6 61 7.0 4.9 252 12 301.4 302.4 288.0 317.7 5.44 6 700 3111 0.8 -3.8 71 4.6 -1.3 255 19 303.4 304.1 287.4 316.0 4.12 7 679 3356 -0.3 -4.7 72 4.4 -2.3 255 20 304.8 305.5 287.8 317.0 3.97 8 612 4181 -5.1 -10.1 68 5.0 -7.1 257 23 308.5 309.0 288.0 317.6 2.90 9 568 4764 -9.3 -16.3 57 7.0 -11.6 258 25 310.2 310.5 287.5 316.3 1.88 10 513 5545 -14.7 -20.7 60 6.0 -16.3 260 27 312.8 313.1 287.9 317.6 1.43 11 511 5575 -14.5 -21.5 55 7.0 -16.4 260 27 313.4 313.7 288.1 317.9 1.34 12 500 5740 -14.1 -22.1 51 8.0 -16.3 260 28 315.8 316.1 288.8 320.2 1.30 13 473 6156 -18.3 -27.3 45 9.0 -20.3 264 27 315.7 315.9 288.3 318.7 0.86 14 400 7380 -28.1 -35.1 51 7.0 -29.1 275 24 318.5 318.6 288.8 320.2 0.48 15 346 8409 -35.1 -47.1 28 12.0 -36.0 288 23 322.5 322.5 289.7 323.1 0.16 16 336 8613 -36.7 -55.7 12 19.0 -37.7 290 23 323.0 323.0 289.8 323.2 0.06 17 314 9080 -40.3 -59.3 11 19.0 -41.1 296 23 324.3 324.3 290.1 324.5 0.04 18 300 9390 -42.7 -59.7 14 17.0 -43.3 300 23 325.2 325.2 290.4 325.3 0.04 19 250 10590 -52.5 295 22 328.0 20 219 11437 -57.9 275 25 332.3 21 209 11733 -58.1 270 29 336.5 22 200 12010 -58.7 265 32 339.8 23 150 13830 -58.9 265 53 368.6 24 139 14307 -60.1 265 51 374.6 25 100 16350 -63.1 265 45 405.8 26 90 16998 -61.9 262 45 420.6 27 81 17650 -61.3 259 45 434.7 28 70 18550 -63.1 255 45 449.4 29 65 19005 -63.3 257 45 458.6 30 52 20386 -60.5 264 44 495.3 31 50 20630 -60.1 265 44 501.9 32 40 22026 -60.3 258 43 534.4 33 30 23840 -56.5 250 41 590.6 34 20 26420 -55.1 280 47 667.5 35 19 26751 -54.7 277 45 678.6 36 17 27470 -54.3 269 40 701.8 37 14 28733 -50.9 257 33 753.4 38 12 29750 -47.5 247 26 799.4 39 11 30333 -44.1 241 23 831.9 40 11 30333 -39.3 241 23 849.4 41 10 30980 -45.7 235 19 849.0 42 9.3 31463 -46.3 864.5 43 7.6 32814 -43.1 928.8 44 6.5 33871 -41.5 978.0 45 6.0 34412 -43.3 992.9 TRP 219 11437 -57.9 275 25 332.3 WND Sounding variables and indices 1000-500 mb thick: 5618.00 m Freezing level: 684.73 mb = 3288.95 m = 10790.39 ft Wetbulb zero: 719.06 mb = 2891.63 m = 9486.85 ft Precipitable water: 0.74 inches Sfc-500 mean rel hum: 63.66 % Est. max temperature: 20.37 C = 68.66 F Sfc-Lift cond lev (LCL): 825.95 mb = 1751.77 m = 5747.20 ft T: 11.52 C 700-500 lapse rate: 5.67 C/km ThetaE index: 13.78 C Layer 881.0- 679.0 mb Conv cond level (CCL): 741.75 mb = 2638.00 m = 8654.76 ft Mean mixing ratio: 7.16 g/kg Conv temperature: 20.61 C = 69.09 F Cap Strength: 1.44 C Lifted Index: 1.41 C Risk: Showers probable Lifted Index @300 mb: 3.04 C Lifted Index @700 mb: -0.33 C Showalter Index: 1.61 C Risk: Showers probable Total Totals Index: 48.00 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 27.50 C Cross Totals Index: 20.50 C K Index: 29.30 Risk: 40-60 % chance of thunderstorms Sweat Index: 118.80 Risk: None Energy Index: -0.22 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 26.19 J/kg Max Up Vert Vel: 7.24 m/s Conv Inhibition (B-): 33.21 J/kg Cap Strength: 1.44 C Lift Cond Lev (LCL): 763.38 mb = 2403.32 m = 7884.81 ft Lev Free Conv (LFC): 708.38 mb = 3013.87 m = 9887.90 ft Equ Level (EL): 638.38 mb = 3845.84 m = 12617.42 ft B at Equ Level: 5.83 J/kg Max Parcel Lev (MPL): 378.38 mb = 7774.27 m = 25505.82 ft Wind level data Storm motion: 289 at 15 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 ---------------------------------------------------------- 0 903 997 100 6 -5.9 1.0 | 106 21 -20.2 6.0 1 850 1512 250 7 6.6 2.4 | 134 11 -7.7 7.3 2 700 3111 255 19 18.4 4.9 | 203 11 4.1 9.8 3 500 5740 260 28 27.6 4.9 | 234 17 13.3 9.8 4 400 7380 275 24 23.9 -2.1 | 254 10 9.7 2.8 5 300 9390 300 23 19.9 -11.5 | 319 9 5.7 -6.6 6 250 10590 295 22 19.9 -9.3 | 308 7 5.7 -4.4 7 219 11437 275 25 24.9 -2.2 | 256 11 10.7 2.7 8 200 12010 265 32 31.9 2.8 | 246 19 17.6 7.7 9 150 13830 265 53 52.8 4.6 | 256 40 38.5 9.5 10 100 16350 265 45 44.8 3.9 | 254 32 30.6 8.8 11 70 18550 255 45 43.5 11.6 | 240 34 29.2 16.6 12 50 20630 265 44 43.8 3.8 | 254 31 29.6 8.8 13 30 23840 250 41 38.5 14.0 | 232 31 24.3 18.9 14 20 26420 280 47 46.3 -8.2 | 276 32 32.0 -3.2 15 10 30980 235 19 15.6 10.9 | 185 16 1.3 15.8 Wind Parameters Mean winds (0-6000m): 259.1 at 20.1 knts Storm direction: 289.1 at 15.1 knts Shear (0-3000m) pos: 4.7 neg: 0.0 tot: 4.7 10-3/s Storm rel Dir Shear (0-3000m): 109.2 deg Storm rel helicity (0-3000m) pos: 87.1 neg: -0.6 tot: 86.5 m^2/s^2 ave: 28.8 10^-3 m/s^2 rel: 0.74 Storm rel vorticity (0-3000m) horiz: 5.4 stream: 4.0 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 0.53 Bulk Shear: 49.62 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 ------------------------------------------------------------------------------- 500 185 6 130 18| 12.8 0.0 12.8| 50.6 -0.6 50.0 100.0 0.59| 16.8 9.9 1000 241 8 139 11| 8.3 0.0 8.3| 59.0 -0.6 58.4 58.4 0.63| 10.4 6.6 1500 248 9 146 10| 6.8 0.0 6.8| 68.0 -0.6 67.4 44.9 0.69| 8.2 5.7 2000 251 11 156 9| 6.1 0.0 6.1| 77.1 -0.6 76.5 38.2 0.73| 7.1 5.2 2500 253 13 166 9| 5.3 0.0 5.3| 82.6 -0.6 82.0 32.8 0.74| 6.2 4.6 3000 254 14 175 9| 4.7 0.0 4.7| 87.1 -0.6 86.5 28.8 0.74| 5.4 4.0 4000 255 17 191 9| 4.0 0.0 4.0| 96.5 -0.6 95.9 24.0 0.74| 4.5 3.4 5000 257 19 204 10| 3.4 0.0 3.4|107.0 -0.6 106.4 21.3 0.74| 4.0 3.0 6000 259 20 212 10| 2.6 0.0 2.6|116.9 -0.6 116.3 19.4 0.72| 3.8 2.7 Wrote GIF file: /home/apache/climate/data/raob//LTBM/skewt/LTBM.skewt.20251021.12.gif