UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042900.upa.cvt Date: 0000Z 29 APR 25 Searching for LTBM... Searching the city database file for: LTBM ... Date:0000Z 29 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 118 1 925 774 SFC 901 997 13.4 4.4 54 9.0 8.5 340 3 295.2 296.3 286.1 312.2 5.82 3 850 1482 9.8 2.8 62 7.0 6.1 65 15 296.4 297.4 286.2 312.6 5.51 4 822 1760 8.8 2.8 66 6.0 5.6 78 16 298.2 299.2 287.1 315.1 5.70 5 774 2257 7.0 2.0 70 5.0 4.4 101 18 301.4 302.5 288.3 318.6 5.72 6 700 3075 0.2 -2.3 83 2.5 -1.0 140 21 302.7 303.6 287.6 316.7 4.62 7 695 3133 0.2 -1.7 87 1.9 -0.7 140 21 303.3 304.2 288.1 318.1 4.86 8 625 3973 -6.9 -13.9 57 7.0 -9.3 145 20 304.6 304.9 285.7 311.2 2.09 9 601 4279 -8.5 -10.5 85 2.0 -9.2 147 20 306.1 306.7 287.1 315.1 2.86 10 599 4304 -8.7 -10.1 90 1.4 -9.2 147 20 306.2 306.7 287.2 315.5 2.96 11 500 5680 -18.7 -20.0 89 1.3 -19.0 155 18 310.2 310.5 287.2 315.4 1.56 12 492 5800 -19.9 -22.0 83 2.1 -20.4 155 18 310.2 310.5 286.9 314.6 1.33 13 486 5891 -20.5 -24.3 72 3.8 -21.3 155 18 310.6 310.8 286.8 314.2 1.10 14 417 7012 -27.5 -31.9 66 4.4 -28.2 155 16 315.5 315.6 288.0 317.7 0.63 15 400 7310 -30.3 -35.3 62 5.0 -30.9 155 15 315.6 315.7 287.9 317.3 0.47 16 399 7328 -30.5 -35.5 62 5.0 -31.2 155 15 315.6 315.7 287.8 317.2 0.47 17 300 9280 -48.1 -52.1 63 4.0 -48.3 155 23 317.6 317.6 288.1 318.0 0.10 18 274 9877 -52.5 -56.8 60 4.3 -52.6 185 15 319.5 319.5 288.6 319.8 0.06 19 262 10168 -53.3 -58.3 54 5.0 -53.4 175 17 322.5 322.5 289.6 322.7 0.06 20 250 10470 -55.9 -60.9 53 5.0 -56.0 165 20 323.0 323.0 289.7 323.1 0.04 21 230 10996 -55.3 -61.3 47 6.0 -55.4 191 20 331.7 331.7 292.2 331.8 0.04 22 201 11848 -55.7 -63.7 36 8.0 -55.9 233 19 344.1 344.1 295.3 344.2 0.04 23 200 11880 -55.5 -63.5 36 8.0 -55.6 235 19 344.9 344.9 295.5 345.0 0.04 24 150 13740 -51.1 265 12 382.0 25 146 13915 -53.3 263 13 381.2 26 102 16214 -54.9 241 22 419.3 27 100 16340 -55.1 240 22 421.3 28 72 18413 -60.3 263 27 451.7 29 70 18590 -58.1 265 27 460.1 30 63 19255 -55.9 252 22 479.0 31 55 20117 -56.1 236 16 497.5 32 50 20720 -57.3 225 11 508.4 33 38 22460 -55.1 241 9 555.6 34 30 23970 -54.1 255 8 597.2 35 20 26570 -53.5 220 10 672.4 36 19 26902 -51.5 224 11 688.6 37 14 28906 -46.9 251 17 767.0 38 10 31160 -42.1 280 23 862.4 39 9.8 31297 -42.5 865.9 40 7.9 32765 -38.5 936.9 41 7.6 33032 -37.3 952.2 TRP 274 9877 -52.5 -56.8 60 4.3 -52.6 185 15 319.5 319.5 288.6 319.8 0.06 WND Sounding variables and indices 1000-500 mb thick: 5562.00 m Freezing level: 693.03 mb = 3156.22 m = 10354.92 ft Wetbulb zero: 713.55 mb = 2919.03 m = 9576.74 ft Precipitable water: 0.71 inches Sfc-500 mean rel hum: 76.22 % Est. max temperature: 19.83 C = 67.69 F Sfc-Lift cond lev (LCL): 786.47 mb = 2125.34 m = 6972.83 ft T: 7.48 C 700-500 lapse rate: 7.26 C/km ThetaE index: 1.87 C Layer 700.0- 695.0 mb Conv cond level (CCL): 703.18 mb = 3038.13 m = 9967.49 ft Mean mixing ratio: 5.66 g/kg Conv temperature: 20.61 C = 69.10 F Cap Strength: 4.37 C Lifted Index: 1.41 C Risk: Showers probable Lifted Index @300 mb: 3.15 C Lifted Index @700 mb: 2.58 C Showalter Index: 1.96 C Risk: Showers probable Total Totals Index: 50.00 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 28.50 C Cross Totals Index: 21.50 C K Index: 28.80 Risk: 40-60 % chance of thunderstorms Sweat Index: 101.60 Risk: None Energy Index: 0.59 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 17.81 J/kg Max Up Vert Vel: 5.97 m/s Conv Inhibition (B-): 57651.77 J/kg Cap Strength: 4.37 C Lift Cond Lev (LCL): 762.70 mb = 2377.09 m = 7798.75 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 168 at 13 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 ---------------------------------------------------------- 0 901 997 340 3 1.0 -2.8 | 347 16 3.7 -15.8 1 850 1482 65 15 -13.6 -6.3 | 30 22 -10.9 -19.3 2 700 3075 140 21 -13.5 16.1 | 106 11 -10.9 3.1 3 500 5680 155 18 -7.6 16.3 | 124 6 -5.0 3.3 4 400 7310 155 15 -6.3 13.6 | 99 4 -3.7 0.6 5 300 9280 155 23 -9.7 20.8 | 138 11 -7.1 7.8 6 274 9877 185 15 1.3 14.9 | 244 4 4.0 1.9 7 250 10470 165 20 -5.2 19.3 | 158 7 -2.5 6.3 8 200 11880 235 19 15.6 10.9 | 277 18 18.2 -2.1 9 150 13740 265 12 12.0 1.0 | 309 19 14.6 -12.0 10 100 16340 240 22 19.1 11.0 | 275 22 21.7 -2.0 11 70 18590 265 27 26.9 2.4 | 290 31 29.5 -10.7 12 50 20720 225 11 7.8 7.8 | 297 12 10.4 -5.2 13 30 23970 255 8 7.7 2.1 | 317 15 10.4 -10.9 14 20 26570 220 10 6.4 7.7 | 300 11 9.1 -5.3 15 10 31160 280 23 22.7 -4.0 | 304 30 25.3 -17.0 Wind Parameters Mean winds (0-6000m): 138.5 at 17.7 knts Storm direction: 168.5 at 13.3 knts Shear (0-3000m) pos: 3.9 neg: 0.0 tot: 3.9 10-3/s Storm rel Dir Shear (0-3000m): 124.4 deg Storm rel helicity (0-3000m) pos: 187.7 neg: 0.0 tot: 187.7 m^2/s^2 ave: 62.6 10^-3 m/s^2 rel: 0.86 Storm rel vorticity (0-3000m) horiz: 7.7 stream: 6.6 10^-3/s Energy-Hel index: 0.02 Bulk Rich Number: 0.37 Bulk Shear: 48.04 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 55 9 15 19| 15.6 0.0 15.6| 89.0 0.0 89.0 178.1 0.87| 18.9 16.4 1000 70 12 28 20| 9.3 0.0 9.3|123.7 0.0 123.7 123.7 0.88| 13.0 11.4 1500 85 14 39 18| 7.2 0.0 7.2|154.6 0.0 154.6 103.1 0.88| 11.2 9.9 2000 100 16 51 16| 6.0 0.0 6.0|181.2 0.0 181.2 90.6 0.88| 10.6 9.3 2500 112 17 62 15| 4.8 0.0 4.8|186.3 0.0 186.3 74.5 0.87| 8.9 7.8 3000 119 17 70 13| 3.9 0.0 3.9|187.7 0.0 187.7 62.6 0.86| 7.7 6.6 4000 129 18 81 11| 2.8 0.0 2.8|189.8 0.0 189.8 47.5 0.84| 6.0 5.1 5000 135 18 88 10| 2.1 0.0 2.1|191.0 -0.5 190.5 38.1 0.81| 5.0 4.1 6000 138 18 92 9| 1.7 0.2 1.9|191.0 -2.0 189.0 31.5 0.76| 4.4 3.3 Wrote GIF file: /home/apache/climate/data/raob//LTBM/skewt/LTBM.skewt.20250429.00.gif