UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042012.upa.cvt Date: 1200Z 20 APR 25 Searching for LTBM... Searching the city database file for: LTBM ... Date:1200Z 20 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 69 1 925 744 SFC 898 997 21.6 4.6 33 17.0 11.9 50 3 304.0 305.1 289.3 321.9 5.92 3 850 1473 17.0 3.0 39 14.0 9.3 300 8 304.0 305.0 289.0 320.9 5.59 4 710 2964 2.0 -5.0 60 7.0 -1.2 286 9 303.5 304.2 287.1 314.9 3.71 5 700 3078 1.0 -7.0 55 8.0 -2.4 285 9 303.6 304.2 286.6 313.6 3.23 6 695 3136 1.0 -10.0 44 11.0 -3.4 285 9 304.2 304.7 286.1 312.3 2.57 7 586 4492 -5.9 -31.9 11 26.0 -11.7 288 19 311.4 311.5 286.4 313.0 0.45 8 550 4988 -8.5 -35.5 9 27.0 -13.9 289 23 314.0 314.1 287.2 315.2 0.34 9 502 5690 -14.3 -39.3 10 25.0 -18.3 290 28 315.2 315.3 287.5 316.2 0.25 10 500 5720 -14.5 -38.5 11 24.0 -18.4 290 28 315.4 315.4 287.5 316.4 0.27 11 400 7370 -27.7 -39.7 31 12.0 -29.1 285 30 319.0 319.0 288.8 320.1 0.30 12 323 8869 -39.1 -50.1 30 11.0 -39.8 278 32 323.4 323.4 289.9 323.8 0.12 13 300 9370 -43.7 -54.7 29 11.0 -44.2 275 33 323.8 323.8 290.0 324.1 0.08 14 274 9976 -48.9 -59.9 27 11.0 -49.2 280 31 324.7 324.7 290.2 324.9 0.04 15 258 10373 -49.1 -60.1 27 11.0 -49.4 277 32 330.1 330.1 291.8 330.3 0.05 16 250 10580 -49.9 -62.9 20 13.0 -50.2 275 33 331.9 331.9 292.3 332.0 0.03 17 200 12040 -47.1 275 52 358.2 18 175 12916 -49.5 268 49 368.2 19 150 13910 -54.9 260 45 375.5 20 101 16389 -63.5 255 28 403.9 21 100 16450 -63.1 255 28 405.8 22 84 17518 -65.7 250 18 421.3 23 83 17591 -65.5 250 18 423.1 24 70 18630 -64.7 245 8 446.0 25 55 20106 -64.3 213 7 478.7 26 50 20690 -64.1 200 7 492.4 27 44 21476 -64.1 170 8 510.8 28 39 22225 -59.9 142 8 539.3 29 30 23880 -56.9 80 9 589.5 30 20 26460 -54.3 90 12 670.0 31 17 27506 -55.3 129 13 698.6 32 10 30980 -45.9 255 15 848.2 33 9.1 31609 -44.7 876.0 TRP 274 9976 -48.9 -59.9 27 11.0 -49.2 280 31 324.7 324.7 290.2 324.9 0.04 WND Sounding variables and indices 1000-500 mb thick: 5651.00 m Freezing level: 679.20 mb = 3332.38 m = 10932.88 ft Wetbulb zero: 725.46 mb = 2785.33 m = 9138.12 ft Precipitable water: 0.49 inches Sfc-500 mean rel hum: 31.15 % Est. max temperature: 21.34 C = 70.42 F Sfc-Lift cond lev (LCL): 697.27 mb = 3109.47 m = 10201.55 ft T: 1.00 C 700-500 lapse rate: 5.87 C/km ThetaE index: 9.62 C Layer 850.0- 586.0 mb Conv cond level (CCL): 666.69 mb = 3466.55 m = 11373.05 ft Mean mixing ratio: 5.47 g/kg Conv temperature: 23.55 C = 74.39 F Cap Strength: 2.55 C Lifted Index: 1.59 C Risk: Showers probable Lifted Index @300 mb: 2.80 C Lifted Index @700 mb: -0.31 C Showalter Index: 1.42 C Risk: Showers probable Total Totals Index: 49.00 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 31.50 C Cross Totals Index: 17.50 C K Index: 26.50 Risk: 40-60 % chance of thunderstorms Sweat Index: 80.00 Risk: None Energy Index: -0.84 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 12.13 J/kg Max Up Vert Vel: 4.92 m/s Conv Inhibition (B-): 47325.99 J/kg Cap Strength: 2.47 C Lift Cond Lev (LCL): 685.75 mb = 3242.34 m = 10637.45 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 319 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 ---------------------------------------------------------- 0 898 997 50 3 -2.3 -1.9 | 126 13 -10.7 7.9 1 850 1473 300 8 6.9 -4.0 | 166 6 -1.5 5.8 2 700 3078 285 9 8.7 -2.3 | 182 8 0.3 7.5 3 500 5720 290 28 26.3 -9.6 | 269 18 17.9 0.3 4 400 7370 285 30 29.0 -7.8 | 264 21 20.6 2.1 5 300 9370 275 33 32.9 -2.9 | 254 25 24.4 7.0 6 274 9976 280 31 30.5 -5.4 | 259 23 22.1 4.5 7 250 10580 275 33 32.9 -2.9 | 254 25 24.4 7.0 8 200 12040 275 52 51.8 -4.5 | 263 44 43.4 5.3 9 150 13910 260 45 44.3 7.8 | 244 40 35.9 17.7 10 100 16450 255 28 27.0 7.2 | 227 25 18.6 17.1 11 70 18630 245 8 7.3 3.4 | 175 13 -1.2 13.2 12 50 20690 200 7 2.4 6.6 | 160 17 -6.0 16.4 13 30 23880 80 9 -8.9 -1.6 | 116 19 -17.3 8.3 14 20 26460 90 12 -12.0 0.0 | 116 23 -20.4 9.8 15 10 30980 255 15 14.5 3.9 | 204 15 6.1 13.7 Wind Parameters Mean winds (0-6000m): 289.4 at 17.3 knts Storm direction: 319.4 at 13.0 knts Shear (0-3000m) pos: 1.1 neg: 1.9 tot: 3.0 10-3/s Storm rel Dir Shear (0-3000m): 104.3 deg Storm rel helicity (0-3000m) pos: 24.9 neg: -5.4 tot: 19.5 m^2/s^2 ave: 6.5 10^-3 m/s^2 rel: 0.57 Storm rel vorticity (0-3000m) horiz: 3.6 stream: 2.0 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.56 Bulk Shear: 21.54 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 ------------------------------------------------------------------------------- 500 320 6 139 7| 0.0 9.8 9.8| 8.9 -5.4 3.6 7.2 0.31| 12.1 3.8 1000 305 7 155 7| 0.0 5.1 5.1| 10.0 -5.4 4.7 4.7 0.35| 6.4 2.2 1500 300 7 162 6| 0.0 3.6 3.6| 11.1 -5.4 5.7 3.8 0.37| 4.5 1.7 2000 296 8 168 7| 0.0 2.8 2.8| 12.0 -5.4 6.7 3.3 0.39| 3.6 1.4 2500 293 8 173 7| 0.6 2.2 2.9| 18.0 -5.4 12.6 5.0 0.50| 3.5 1.8 3000 291 9 181 6| 1.1 1.9 3.0| 24.9 -5.4 19.5 6.5 0.57| 3.6 2.0 4000 290 12 204 6| 1.8 1.4 3.2| 39.2 -5.4 33.9 8.5 0.61| 3.6 2.2 5000 290 15 229 7| 1.8 1.3 3.1| 50.1 -6.3 43.9 8.8 0.58| 3.5 2.0 6000 289 17 242 9| 1.5 1.2 2.7| 50.1 -11.4 38.8 6.5 0.52| 3.1 1.6 Wrote GIF file: /home/apache/climate/data/raob//LTBM/skewt/LTBM.skewt.20250420.12.gif